Illinois 2012 USDA Hardiness Zone Map
View the new 2023 Illinois Hardiness Zone Map
| Zone 5a -20°F to -15°F | Zone 5b -15°F to -10°F | Zone 6a -10°F to -5°F |
| Zone 6b -5°F to 0°F | Zone 7a 0°F to 5°F |
Based on the 2012 USDA Hardiness Zone Map, this interactive version covers the state of Illinois which ranges from USDA Zone 5a to USDA Zone 7a.
2012 USDA Hardiness Zone Maps for Neighboring States and Provinces
Related Illinois Maps:
List of 2012 Hardiness Zones for Cities in Illinois
| Location | Hardiness Zone |
|---|---|
| Abingdon | Zone 5b: -15°F to -10°F |
| Adair | Zone 5b: -15°F to -10°F |
| Addieville | Zone 6b: -5°F to 0°F |
| Addison | Zone 5b: -15°F to -10°F |
| Adeline | Zone 5a: -20°F to -15°F |
| Adrian | Zone 5b: -15°F to -10°F |
| Akin | Zone 6b: -5°F to 0°F |
| Akron | Zone 5b: -15°F to -10°F |
| Albany | Zone 5b: -15°F to -10°F |
| Albers | Zone 6b: -5°F to 0°F |
| Albion | Zone 6b: -5°F to 0°F |
| Alden | Zone 5b: -15°F to -10°F |
| Aledo | Zone 5b: -15°F to -10°F |
| Alexander | Zone 6a: -10°F to -5°F |
| Alexis | Zone 5b: -15°F to -10°F |
| Algonquin | Zone 5b: -15°F to -10°F |
| Alhambra | Zone 6a: -10°F to -5°F |
| Allendale | Zone 6a: -10°F to -5°F |
| Allenville | Zone 6a: -10°F to -5°F |
| Allerton | Zone 5b: -15°F to -10°F |
| Alma | Zone 6a: -10°F to -5°F |
| Alorton | Zone 6b: -5°F to 0°F |
| Alpha | Zone 5b: -15°F to -10°F |
| Alsey | Zone 6a: -10°F to -5°F |
| Alsip | Zone 6a: -10°F to -5°F |
| Altamont | Zone 6a: -10°F to -5°F |
| Alto Pass | Zone 6b: -5°F to 0°F |
| Alton | Zone 6b: -5°F to 0°F |
| Altona | Zone 5b: -15°F to -10°F |
| Alvin | Zone 5b: -15°F to -10°F |
| Amboy | Zone 5b: -15°F to -10°F |
| Anchor | Zone 5b: -15°F to -10°F |
| Ancona | Zone 5b: -15°F to -10°F |
| Andalusia | Zone 5b: -15°F to -10°F |
| Andover | Zone 5b: -15°F to -10°F |
| Anna | Zone 6b: -5°F to 0°F |
| Annapolis | Zone 6a: -10°F to -5°F |
| Annawan | Zone 5b: -15°F to -10°F |
| Antioch | Zone 5b: -15°F to -10°F |
| Apple River | Zone 5a: -20°F to -15°F |
| Arcola | Zone 6a: -10°F to -5°F |
| Arenzville | Zone 5b: -15°F to -10°F |
| Argenta | Zone 5b: -15°F to -10°F |
| Arlington | Zone 5b: -15°F to -10°F |
| Arlington Heights | Zone 5b: -15°F to -10°F |
| Armington | Zone 5b: -15°F to -10°F |
| Armstrong | Zone 5b: -15°F to -10°F |
| Aroma Park | Zone 5b: -15°F to -10°F |
| Arrowsmith | Zone 5b: -15°F to -10°F |
| Arthur | Zone 6a: -10°F to -5°F |
| Ashkum | Zone 5b: -15°F to -10°F |
| Ashland | Zone 5b: -15°F to -10°F |
| Ashley | Zone 6b: -5°F to 0°F |
| Ashmore | Zone 6a: -10°F to -5°F |
| Ashton | Zone 5a: -20°F to -15°F |
| Assumption | Zone 6a: -10°F to -5°F |
| Astoria | Zone 5b: -15°F to -10°F |
| Athens | Zone 5b: -15°F to -10°F |
| Atkinson | Zone 5b: -15°F to -10°F |
| Atlanta | Zone 5b: -15°F to -10°F |
| Atlas | Zone 6a: -10°F to -5°F |
| Atwater | Zone 6a: -10°F to -5°F |
| Atwood | Zone 6a: -10°F to -5°F |
| Auburn | Zone 6a: -10°F to -5°F |
| Augusta | Zone 5b: -15°F to -10°F |
| Aurora | Zone 5b: -15°F to -10°F |
| Ava | Zone 6b: -5°F to 0°F |
| Aviston | Zone 6b: -5°F to 0°F |
| Avon | Zone 5b: -15°F to -10°F |
| Baileyville | Zone 5a: -20°F to -15°F |
| Baldwin | Zone 6b: -5°F to 0°F |
| Banner | Zone 5b: -15°F to -10°F |
| Bannockburn | Zone 5b: -15°F to -10°F |
| Bardolph | Zone 5b: -15°F to -10°F |
| Barnhill | Zone 6b: -5°F to 0°F |
| Barrington | Zone 5b: -15°F to -10°F |
| Barrington Hills | Zone 5b: -15°F to -10°F |
| Barry | Zone 6a: -10°F to -5°F |
| Barstow | Zone 5b: -15°F to -10°F |
| Bartelso | Zone 6a: -10°F to -5°F |
| Bartlett | Zone 5b: -15°F to -10°F |
| Bartonville | Zone 5b: -15°F to -10°F |
| Basco | Zone 5b: -15°F to -10°F |
| Batavia | Zone 5b: -15°F to -10°F |
| Batchtown | Zone 6a: -10°F to -5°F |
| Bath | Zone 5b: -15°F to -10°F |
| Bay View Garden | Zone 5b: -15°F to -10°F |
| Baylis | Zone 5b: -15°F to -10°F |
| Beach Park | Zone 5b: -15°F to -10°F |
| Beardstown | Zone 6a: -10°F to -5°F |
| Beason | Zone 5b: -15°F to -10°F |
| Beaucoup | Zone 6b: -5°F to 0°F |
| Beaverville | Zone 5b: -15°F to -10°F |
| Beckemeyer | Zone 6a: -10°F to -5°F |
| Bedford Park | Zone 6a: -10°F to -5°F |
| Beecher | Zone 5b: -15°F to -10°F |
| Beecher City | Zone 6a: -10°F to -5°F |
| Belgium | Zone 5b: -15°F to -10°F |
| Belknap | Zone 6b: -5°F to 0°F |
| Belle Prairie City | Zone 6b: -5°F to 0°F |
| Belle Rive | Zone 6b: -5°F to 0°F |
| Belleville | Zone 6b: -5°F to 0°F |
| Bellevue | Zone 5b: -15°F to -10°F |
| Bellflower | Zone 5b: -15°F to -10°F |
| Bellmont | Zone 6b: -5°F to 0°F |
| Bellwood | Zone 5b: -15°F to -10°F |
| Belvidere | Zone 5b: -15°F to -10°F |
| Bement | Zone 5b: -15°F to -10°F |
| Benld | Zone 6a: -10°F to -5°F |
| Bensenville | Zone 5b: -15°F to -10°F |
| Benson | Zone 5b: -15°F to -10°F |
| Bentley | Zone 5b: -15°F to -10°F |
| Benton | Zone 6b: -5°F to 0°F |
| Berkeley | Zone 5b: -15°F to -10°F |
| Berlin | Zone 6a: -10°F to -5°F |
| Berwick | Zone 5b: -15°F to -10°F |
| Berwyn | Zone 6a: -10°F to -5°F |
| Bethalto | Zone 6a: -10°F to -5°F |
| Bethany | Zone 6a: -10°F to -5°F |
| Big Rock | Zone 5b: -15°F to -10°F |
| Biggsville | Zone 5b: -15°F to -10°F |
| Bingham | Zone 6a: -10°F to -5°F |
| Birds | Zone 6a: -10°F to -5°F |
| Birmingham | Zone 5b: -15°F to -10°F |
| Bishop Hill | Zone 5b: -15°F to -10°F |
| Bismarck | Zone 5b: -15°F to -10°F |
| Blackstone | Zone 5b: -15°F to -10°F |
| Blandinsville | Zone 5b: -15°F to -10°F |
| Bloomingdale | Zone 5b: -15°F to -10°F |
| Bloomington | Zone 5b: -15°F to -10°F |
| Blue Island | Zone 6a: -10°F to -5°F |
| Blue Mound | Zone 6a: -10°F to -5°F |
| Blue Ridge | Zone 5b: -15°F to -10°F |
| Bluff Springs | Zone 5b: -15°F to -10°F |
| Bluffs | Zone 6a: -10°F to -5°F |
| Bluford | Zone 6a: -10°F to -5°F |
| Boles | Zone 6b: -5°F to 0°F |
| Bolingbrook | Zone 5b: -15°F to -10°F |
| Bondville | Zone 5b: -15°F to -10°F |
| Bone Gap | Zone 6b: -5°F to 0°F |
| Bonfield | Zone 5b: -15°F to -10°F |
| Bonnie | Zone 6b: -5°F to 0°F |
| Boody | Zone 6a: -10°F to -5°F |
| Boulder Hill | Zone 5b: -15°F to -10°F |
| Bourbonnais | Zone 5b: -15°F to -10°F |
| Bowen | Zone 5b: -15°F to -10°F |
| Boynton | Zone 5b: -15°F to -10°F |
| Braceville | Zone 5b: -15°F to -10°F |
| Bradford | Zone 5b: -15°F to -10°F |
| Bradley | Zone 5b: -15°F to -10°F |
| Braidwood | Zone 5b: -15°F to -10°F |
| Breese | Zone 6b: -5°F to 0°F |
| Bridgeport | Zone 6a: -10°F to -5°F |
| Bridgeview | Zone 6a: -10°F to -5°F |
| Brighton | Zone 6a: -10°F to -5°F |
| Brimfield | Zone 5b: -15°F to -10°F |
| Bristol | Zone 5b: -15°F to -10°F |
| Broadlands | Zone 5b: -15°F to -10°F |
| Broadview | Zone 5b: -15°F to -10°F |
| Broadwell | Zone 5b: -15°F to -10°F |
| Brocton | Zone 6a: -10°F to -5°F |
| Brookfield | Zone 5b: -15°F to -10°F |
| Brooklyn | Zone 6b: -5°F to 0°F |
| Brookport | Zone 7a: 0°F to 5°F |
| Broughton | Zone 6b: -5°F to 0°F |
| Browning | Zone 5b: -15°F to -10°F |
| Browns | Zone 6b: -5°F to 0°F |
| Brownstown | Zone 6a: -10°F to -5°F |
| Brussels | Zone 6a: -10°F to -5°F |
| Bryant | Zone 5b: -15°F to -10°F |
| Buckingham | Zone 5b: -15°F to -10°F |
| Buckley | Zone 5b: -15°F to -10°F |
| Buckner | Zone 6b: -5°F to 0°F |
| Buda | Zone 5b: -15°F to -10°F |
| Buffalo | Zone 6a: -10°F to -5°F |
| Buffalo Grove | Zone 5b: -15°F to -10°F |
| Buffalo Hart | Zone 5b: -15°F to -10°F |
| Buffalo Prairie | Zone 5b: -15°F to -10°F |
| Bull Valley | Zone 5b: -15°F to -10°F |
| Bulpitt | Zone 6a: -10°F to -5°F |
| Buncombe | Zone 6b: -5°F to 0°F |
| Bunker Hill | Zone 6a: -10°F to -5°F |
| Burbank | Zone 6a: -10°F to -5°F |
| Bureau | Zone 5b: -15°F to -10°F |
| Burlington | Zone 5b: -15°F to -10°F |
| Burnham | Zone 6a: -10°F to -5°F |
| Burnside | Zone 5b: -15°F to -10°F |
| Burnt Prairie | Zone 6b: -5°F to 0°F |
| Burr Ridge | Zone 5b: -15°F to -10°F |
| Bush | Zone 6b: -5°F to 0°F |
| Bushnell | Zone 5b: -15°F to -10°F |
| Butler | Zone 6a: -10°F to -5°F |
| Byron | Zone 5a: -20°F to -15°F |
| Cabery | Zone 5b: -15°F to -10°F |
| Cache | Zone 7a: 0°F to 5°F |
| Cahokia | Zone 6b: -5°F to 0°F |
| Cairo | Zone 7a: 0°F to 5°F |
| Caledonia | Zone 5b: -15°F to -10°F |
| Calhoun | Zone 6a: -10°F to -5°F |
| Calumet City | Zone 6a: -10°F to -5°F |
| Calumet Park | Zone 6a: -10°F to -5°F |
| Camargo | Zone 6a: -10°F to -5°F |
| Cambria | Zone 6b: -5°F to 0°F |
| Cambridge | Zone 5b: -15°F to -10°F |
| Camden | Zone 5b: -15°F to -10°F |
| Cameron | Zone 5b: -15°F to -10°F |
| Camp Grove | Zone 5b: -15°F to -10°F |
| Camp Point | Zone 5b: -15°F to -10°F |
| Campbell Hill | Zone 6b: -5°F to 0°F |
| Campus | Zone 5b: -15°F to -10°F |
| Canton | Zone 5b: -15°F to -10°F |
| Cantrall | Zone 5b: -15°F to -10°F |
| Capron | Zone 5b: -15°F to -10°F |
| Carbon Cliff | Zone 5b: -15°F to -10°F |
| Carbon Hill | Zone 5b: -15°F to -10°F |
| Carbondale | Zone 6b: -5°F to 0°F |
| Carlinville | Zone 6a: -10°F to -5°F |
| Carlock | Zone 5b: -15°F to -10°F |
| Carlyle | Zone 6a: -10°F to -5°F |
| Carman | Zone 5b: -15°F to -10°F |
| Carmi | Zone 6b: -5°F to 0°F |
| Carol Stream | Zone 5b: -15°F to -10°F |
| Carpentersville | Zone 5b: -15°F to -10°F |
| Carrier Mills | Zone 6b: -5°F to 0°F |
| Carrollton | Zone 6a: -10°F to -5°F |
| Carterville | Zone 6b: -5°F to 0°F |
| Carthage | Zone 5b: -15°F to -10°F |
| Cary | Zone 5b: -15°F to -10°F |
| Casey | Zone 6a: -10°F to -5°F |
| Caseyville | Zone 6b: -5°F to 0°F |
| Castleton | Zone 5b: -15°F to -10°F |
| Catlin | Zone 5b: -15°F to -10°F |
| Cave-in-Rock | Zone 6b: -5°F to 0°F |
| Cazenovia | Zone 5b: -15°F to -10°F |
| Cedar Point | Zone 5b: -15°F to -10°F |
| Cedarville | Zone 5a: -20°F to -15°F |
| Central City | Zone 6a: -10°F to -5°F |
| Centralia | Zone 6a: -10°F to -5°F |
| Centreville | Zone 6b: -5°F to 0°F |
| Cerro Gordo | Zone 5b: -15°F to -10°F |
| Chadwick | Zone 5a: -20°F to -15°F |
| Chambersburg | Zone 6a: -10°F to -5°F |
| Champaign | Zone 5b: -15°F to -10°F |
| Chana | Zone 5a: -20°F to -15°F |
| Chandlerville | Zone 5b: -15°F to -10°F |
| Channahon | Zone 5b: -15°F to -10°F |
| Channel Lake | Zone 5b: -15°F to -10°F |
| Chapin | Zone 6a: -10°F to -5°F |
| Charleston | Zone 6a: -10°F to -5°F |
| Charlotte | Zone 5b: -15°F to -10°F |
| Chatham | Zone 6a: -10°F to -5°F |
| Chatsworth | Zone 5b: -15°F to -10°F |
| Chebanse | Zone 5b: -15°F to -10°F |
| Chemung | Zone 5b: -15°F to -10°F |
| Chenoa | Zone 5b: -15°F to -10°F |
| Cherry | Zone 5b: -15°F to -10°F |
| Cherry Valley | Zone 5b: -15°F to -10°F |
| Chester | Zone 6b: -5°F to 0°F |
| Chesterfield | Zone 6a: -10°F to -5°F |
| Chestnut | Zone 5b: -15°F to -10°F |
| Chestnut Mountain Resort | Zone 5a: -20°F to -15°F |
| Chicago | Zone 6a: -10°F to -5°F |
| Chicago / Northerly Island | Zone 6a: -10°F to -5°F |
| Chicago Heights | Zone 5b: -15°F to -10°F |
| Chicago O'Hare International | Zone 5b: -15°F to -10°F |
| Chicago Ridge | Zone 6a: -10°F to -5°F |
| Chicago/Midway Arpt | Zone 6a: -10°F to -5°F |
| Chicago/O'Hare International Airport | Zone 5b: -15°F to -10°F |
| Chillicothe | Zone 5b: -15°F to -10°F |
| Chrisman | Zone 6a: -10°F to -5°F |
| Christopher | Zone 6b: -5°F to 0°F |
| Cicero | Zone 6a: -10°F to -5°F |
| Cisco | Zone 5b: -15°F to -10°F |
| Cisne | Zone 6a: -10°F to -5°F |
| Cissna Park | Zone 5b: -15°F to -10°F |
| Clare | Zone 5b: -15°F to -10°F |
| Claremont | Zone 6a: -10°F to -5°F |
| Clarendon Hills | Zone 5b: -15°F to -10°F |
| Clarksburg | Zone 6a: -10°F to -5°F |
| Clay City | Zone 6a: -10°F to -5°F |
| Clayton | Zone 5b: -15°F to -10°F |
| Claytonville | Zone 5b: -15°F to -10°F |
| Clear Lake | Zone 5b: -15°F to -10°F |
| Cleveland | Zone 5b: -15°F to -10°F |
| Clifton | Zone 5b: -15°F to -10°F |
| Clinton | Zone 5b: -15°F to -10°F |
| Coal City | Zone 5b: -15°F to -10°F |
| Coal Valley | Zone 5b: -15°F to -10°F |
| Coalton | Zone 6a: -10°F to -5°F |
| Coatsburg | Zone 5b: -15°F to -10°F |
| Cobden | Zone 6b: -5°F to 0°F |
| Coello | Zone 6b: -5°F to 0°F |
| Coffeen | Zone 6a: -10°F to -5°F |
| Colchester | Zone 5b: -15°F to -10°F |
| Coldbrook | Zone 5b: -15°F to -10°F |
| Coleta | Zone 5a: -20°F to -15°F |
| Colfax | Zone 5b: -15°F to -10°F |
| Collinsville | Zone 6b: -5°F to 0°F |
| Collison | Zone 5b: -15°F to -10°F |
| Colona | Zone 5b: -15°F to -10°F |
| Colp | Zone 6b: -5°F to 0°F |
| Columbia | Zone 6b: -5°F to 0°F |
| Columbus | Zone 6a: -10°F to -5°F |
| Colusa | Zone 5b: -15°F to -10°F |
| Como | Zone 5b: -15°F to -10°F |
| Compton | Zone 5a: -20°F to -15°F |
| Concord | Zone 5b: -15°F to -10°F |
| Congerville | Zone 5b: -15°F to -10°F |
| Cooksville | Zone 5b: -15°F to -10°F |
| Coral | Zone 5b: -15°F to -10°F |
| Cordova | Zone 5b: -15°F to -10°F |
| Cornell | Zone 5b: -15°F to -10°F |
| Cornland | Zone 5b: -15°F to -10°F |
| Cortland | Zone 5b: -15°F to -10°F |
| Cottage Hills | Zone 6a: -10°F to -5°F |
| Cotton Hill | Zone 6a: -10°F to -5°F |
| Coulterville | Zone 6b: -5°F to 0°F |
| Country Club Hills | Zone 5b: -15°F to -10°F |
| Countryside | Zone 5b: -15°F to -10°F |
| Cowden | Zone 6a: -10°F to -5°F |
| Coyne Center | Zone 5b: -15°F to -10°F |
| Crab Orchard | Zone 6b: -5°F to 0°F |
| Crainville | Zone 6b: -5°F to 0°F |
| Creal Springs | Zone 6b: -5°F to 0°F |
| Crescent City | Zone 5b: -15°F to -10°F |
| Crest Hill | Zone 5b: -15°F to -10°F |
| Cresthill | Zone 5b: -15°F to -10°F |
| Creston | Zone 5a: -20°F to -15°F |
| Crestwood | Zone 5b: -15°F to -10°F |
| Crete | Zone 5b: -15°F to -10°F |
| Creve Coeur | Zone 5b: -15°F to -10°F |
| Cropsey | Zone 5b: -15°F to -10°F |
| Crossville | Zone 6b: -5°F to 0°F |
| Cruger | Zone 5b: -15°F to -10°F |
| Crystal Lake | Zone 5b: -15°F to -10°F |
| Crystal Lawns | Zone 5b: -15°F to -10°F |
| Cuba | Zone 5b: -15°F to -10°F |
| Cullom | Zone 5b: -15°F to -10°F |
| Curran | Zone 6a: -10°F to -5°F |
| Cutler | Zone 6b: -5°F to 0°F |
| Cypress | Zone 6b: -5°F to 0°F |
| Dahinda | Zone 5b: -15°F to -10°F |
| Dahlgren | Zone 6b: -5°F to 0°F |
| Dakota | Zone 5a: -20°F to -15°F |
| Dale | Zone 6b: -5°F to 0°F |
| Dallas City | Zone 5b: -15°F to -10°F |
| Dalton City | Zone 6a: -10°F to -5°F |
| Dalzell | Zone 5b: -15°F to -10°F |
| Damiansville | Zone 6b: -5°F to 0°F |
| Dana | Zone 5b: -15°F to -10°F |
| Danforth | Zone 5b: -15°F to -10°F |
| Danvers | Zone 5b: -15°F to -10°F |
| Danville | Zone 5b: -15°F to -10°F |
| Darien | Zone 5b: -15°F to -10°F |
| Darmstadt | Zone 6b: -5°F to 0°F |
| Davis | Zone 5a: -20°F to -15°F |
| Davis Junction | Zone 5b: -15°F to -10°F |
| Dawson | Zone 6a: -10°F to -5°F |
| Dayton | Zone 5b: -15°F to -10°F |
| De Land | Zone 5b: -15°F to -10°F |
| De Soto | Zone 6b: -5°F to 0°F |
| De Witt | Zone 5b: -15°F to -10°F |
| Decatur | Zone 5b: -15°F to -10°F |
| Deer Creek | Zone 5b: -15°F to -10°F |
| Deer Grove | Zone 5b: -15°F to -10°F |
| Deer Park | Zone 5b: -15°F to -10°F |
| Deerfield | Zone 5b: -15°F to -10°F |
| DeKalb | Zone 5b: -15°F to -10°F |
| Delavan | Zone 5b: -15°F to -10°F |
| Dennison | Zone 6a: -10°F to -5°F |
| Depue | Zone 5b: -15°F to -10°F |
| Des Plaines | Zone 5b: -15°F to -10°F |
| Detroit | Zone 6a: -10°F to -5°F |
| Dewey | Zone 5b: -15°F to -10°F |
| Dewitt | Zone 5b: -15°F to -10°F |
| Diamond | Zone 5b: -15°F to -10°F |
| Dieterich | Zone 6a: -10°F to -5°F |
| Dillon | Zone 5b: -15°F to -10°F |
| Divernon | Zone 6a: -10°F to -5°F |
| Dix | Zone 6a: -10°F to -5°F |
| Dixmoor | Zone 6a: -10°F to -5°F |
| Dixon | Zone 5a: -20°F to -15°F |
| Dolton | Zone 6a: -10°F to -5°F |
| Dongola | Zone 6b: -5°F to 0°F |
| Donnellson | Zone 6a: -10°F to -5°F |
| Donovan | Zone 5b: -15°F to -10°F |
| Dorchester | Zone 6a: -10°F to -5°F |
| Dorsey | Zone 6a: -10°F to -5°F |
| Dover | Zone 5b: -15°F to -10°F |
| Dow | Zone 6a: -10°F to -5°F |
| Dowell | Zone 6b: -5°F to 0°F |
| Downers Grove | Zone 5b: -15°F to -10°F |
| Downs | Zone 5b: -15°F to -10°F |
| Du Bois | Zone 6b: -5°F to 0°F |
| Du Quoin | Zone 6b: -5°F to 0°F |
| Dundas | Zone 6a: -10°F to -5°F |
| Dundee | Zone 5b: -15°F to -10°F |
| Dunfermline | Zone 5b: -15°F to -10°F |
| Dunlap | Zone 5b: -15°F to -10°F |
| Dupo | Zone 6b: -5°F to 0°F |
| Durand | Zone 5a: -20°F to -15°F |
| Dwight | Zone 5b: -15°F to -10°F |
| Eagarville | Zone 6a: -10°F to -5°F |
| Eagerville | Zone 6a: -10°F to -5°F |
| Eagle Point | Zone 5a: -20°F to -15°F |
| Earlville | Zone 5b: -15°F to -10°F |
| East Alton | Zone 6b: -5°F to 0°F |
| East Brooklyn | Zone 5b: -15°F to -10°F |
| East Cape Girardeau | Zone 6b: -5°F to 0°F |
| East Carondelet | Zone 6b: -5°F to 0°F |
| East Dubuque | Zone 5a: -20°F to -15°F |
| East Dundee | Zone 5b: -15°F to -10°F |
| East Galesburg | Zone 5b: -15°F to -10°F |
| East Gillespie | Zone 6a: -10°F to -5°F |
| East Hazel Crest | Zone 5b: -15°F to -10°F |
| East Lynn | Zone 5b: -15°F to -10°F |
| East Moline | Zone 5b: -15°F to -10°F |
| East Peoria | Zone 5b: -15°F to -10°F |
| East Saint Louis | Zone 6b: -5°F to 0°F |
| Easton | Zone 5b: -15°F to -10°F |
| Eddyville | Zone 6b: -5°F to 0°F |
| Edelstein | Zone 5b: -15°F to -10°F |
| Edgewood | Zone 6a: -10°F to -5°F |
| Edgington | Zone 5b: -15°F to -10°F |
| Edinburg | Zone 6a: -10°F to -5°F |
| Edwards | Zone 5b: -15°F to -10°F |
| Edwardsville | Zone 6a: -10°F to -5°F |
| Effingham | Zone 6a: -10°F to -5°F |
| El Dara | Zone 6a: -10°F to -5°F |
| El Paso | Zone 5b: -15°F to -10°F |
| Elburn | Zone 5b: -15°F to -10°F |
| Eldena | Zone 5a: -20°F to -15°F |
| Eldorado | Zone 6b: -5°F to 0°F |
| Eldred | Zone 6a: -10°F to -5°F |
| Eleroy | Zone 5a: -20°F to -15°F |
| Elgin | Zone 5b: -15°F to -10°F |
| Eliza | Zone 5b: -15°F to -10°F |
| Elizabeth | Zone 5a: -20°F to -15°F |
| Elizabethtown | Zone 6b: -5°F to 0°F |
| Elk Grove Village | Zone 5b: -15°F to -10°F |
| Elkhart | Zone 5b: -15°F to -10°F |
| Elkville | Zone 6b: -5°F to 0°F |
| Ellery | Zone 6b: -5°F to 0°F |
| Elliott | Zone 5b: -15°F to -10°F |
| Ellis Grove | Zone 6b: -5°F to 0°F |
| Ellisville | Zone 5b: -15°F to -10°F |
| Ellsworth | Zone 5b: -15°F to -10°F |
| Elmhurst | Zone 5b: -15°F to -10°F |
| Elmira | Zone 5b: -15°F to -10°F |
| Elmwood | Zone 5b: -15°F to -10°F |
| Elmwood Park | Zone 5b: -15°F to -10°F |
| Elsah | Zone 6a: -10°F to -5°F |
| Elvaston | Zone 5b: -15°F to -10°F |
| Elwin | Zone 6a: -10°F to -5°F |
| Elwood | Zone 5b: -15°F to -10°F |
| Emden | Zone 5b: -15°F to -10°F |
| Emington | Zone 5b: -15°F to -10°F |
| Emma | Zone 6b: -5°F to 0°F |
| Empire | Zone 5b: -15°F to -10°F |
| Energy | Zone 6b: -5°F to 0°F |
| Enfield | Zone 6b: -5°F to 0°F |
| Eola | Zone 5b: -15°F to -10°F |
| Equality | Zone 6b: -5°F to 0°F |
| Erie | Zone 5b: -15°F to -10°F |
| Esmond | Zone 5b: -15°F to -10°F |
| Essex | Zone 5b: -15°F to -10°F |
| Eureka | Zone 5b: -15°F to -10°F |
| Evanston | Zone 5b: -15°F to -10°F |
| Evansville | Zone 6b: -5°F to 0°F |
| Evergreen Park | Zone 6a: -10°F to -5°F |
| Ewing | Zone 6b: -5°F to 0°F |
| Exeter | Zone 6a: -10°F to -5°F |
| Fairbury | Zone 5b: -15°F to -10°F |
| Fairfield | Zone 6a: -10°F to -5°F |
| Fairmont | Zone 5b: -15°F to -10°F |
| Fairmont City | Zone 6b: -5°F to 0°F |
| Fairmount | Zone 5b: -15°F to -10°F |
| Fairview | Zone 5b: -15°F to -10°F |
| Fairview Heights | Zone 6b: -5°F to 0°F |
| Farina | Zone 6a: -10°F to -5°F |
| Farmer City | Zone 5b: -15°F to -10°F |
| Farmersville | Zone 6a: -10°F to -5°F |
| Farmington | Zone 5b: -15°F to -10°F |
| Fayetteville | Zone 6b: -5°F to 0°F |
| Fenton | Zone 5b: -15°F to -10°F |
| Ferris | Zone 5b: -15°F to -10°F |
| Fiatt | Zone 5b: -15°F to -10°F |
| Fidelity | Zone 6a: -10°F to -5°F |
| Fieldon | Zone 6a: -10°F to -5°F |
| Fillmore | Zone 6a: -10°F to -5°F |
| Findlay | Zone 6a: -10°F to -5°F |
| Fisher | Zone 5b: -15°F to -10°F |
| Fithian | Zone 5b: -15°F to -10°F |
| Flagg | Zone 5a: -20°F to -15°F |
| Flanagan | Zone 5b: -15°F to -10°F |
| Flat Rock | Zone 6a: -10°F to -5°F |
| Flora | Zone 6a: -10°F to -5°F |
| Floraville | Zone 6b: -5°F to 0°F |
| Florence | Zone 6a: -10°F to -5°F |
| Flossmoor | Zone 5b: -15°F to -10°F |
| Foosland | Zone 5b: -15°F to -10°F |
| Ford Heights | Zone 5b: -15°F to -10°F |
| Forest City | Zone 5b: -15°F to -10°F |
| Forest Lake | Zone 5b: -15°F to -10°F |
| Forest Park | Zone 6a: -10°F to -5°F |
| Forest View | Zone 6a: -10°F to -5°F |
| Forrest | Zone 5b: -15°F to -10°F |
| Forreston | Zone 5a: -20°F to -15°F |
| Forsyth | Zone 5b: -15°F to -10°F |
| Fort Sheridan | Zone 5b: -15°F to -10°F |
| Fowler | Zone 6a: -10°F to -5°F |
| Fox Lake | Zone 5b: -15°F to -10°F |
| Fox Lake Hills | Zone 5b: -15°F to -10°F |
| Fox River Grove | Zone 5b: -15°F to -10°F |
| Fox River Valley Gardens | Zone 5b: -15°F to -10°F |
| Fox Valley | Zone 6a: -10°F to -5°F |
| Frankfort | Zone 5b: -15°F to -10°F |
| Frankfort Heights | Zone 6b: -5°F to 0°F |
| Frankfort Square | Zone 5b: -15°F to -10°F |
| Franklin | Zone 6a: -10°F to -5°F |
| Franklin Grove | Zone 5a: -20°F to -15°F |
| Franklin Park | Zone 5b: -15°F to -10°F |
| Frederick | Zone 6a: -10°F to -5°F |
| Freeburg | Zone 6b: -5°F to 0°F |
| Freeman Spur | Zone 6b: -5°F to 0°F |
| Freeport | Zone 5a: -20°F to -15°F |
| Fulton | Zone 5b: -15°F to -10°F |
| Fults | Zone 6b: -5°F to 0°F |
| Funks Grove | Zone 5b: -15°F to -10°F |
| Gages Lake | Zone 5b: -15°F to -10°F |
| Galatia | Zone 6b: -5°F to 0°F |
| Galena | Zone 5a: -20°F to -15°F |
| Galesburg | Zone 5b: -15°F to -10°F |
| Galt | Zone 5b: -15°F to -10°F |
| Galva | Zone 5b: -15°F to -10°F |
| Garden Plain | Zone 5b: -15°F to -10°F |
| Garden Prairie | Zone 5b: -15°F to -10°F |
| Gardner | Zone 5b: -15°F to -10°F |
| Garrett | Zone 6a: -10°F to -5°F |
| Gays | Zone 6a: -10°F to -5°F |
| Geff | Zone 6a: -10°F to -5°F |
| Geneseo | Zone 5b: -15°F to -10°F |
| Geneva | Zone 5b: -15°F to -10°F |
| Genoa | Zone 5b: -15°F to -10°F |
| Georgetown | Zone 5b: -15°F to -10°F |
| Gerlaw | Zone 5b: -15°F to -10°F |
| German Valley | Zone 5a: -20°F to -15°F |
| Germantown | Zone 6b: -5°F to 0°F |
| Germantown Hills | Zone 5b: -15°F to -10°F |
| Gibson City | Zone 5b: -15°F to -10°F |
| Gifford | Zone 5b: -15°F to -10°F |
| Gilberts | Zone 5b: -15°F to -10°F |
| Gillespie | Zone 6a: -10°F to -5°F |
| Gilman | Zone 5b: -15°F to -10°F |
| Gilson | Zone 5b: -15°F to -10°F |
| Girard | Zone 6a: -10°F to -5°F |
| Gladstone | Zone 5b: -15°F to -10°F |
| Glasford | Zone 5b: -15°F to -10°F |
| Glasgow | Zone 6a: -10°F to -5°F |
| Glen Carbon | Zone 6a: -10°F to -5°F |
| Glen Ellyn | Zone 5b: -15°F to -10°F |
| Glenarm | Zone 6a: -10°F to -5°F |
| Glenbard South | Zone 5b: -15°F to -10°F |
| Glencoe | Zone 5b: -15°F to -10°F |
| Glendale Heights | Zone 5b: -15°F to -10°F |
| Glenview | Zone 6a: -10°F to -5°F |
| Glenwood | Zone 5b: -15°F to -10°F |
| Godfrey | Zone 6a: -10°F to -5°F |
| Godley | Zone 5b: -15°F to -10°F |
| Golconda | Zone 6b: -5°F to 0°F |
| Golden | Zone 5b: -15°F to -10°F |
| Golden Eagle | Zone 6a: -10°F to -5°F |
| Golden Gate | Zone 6b: -5°F to 0°F |
| Golf | Zone 6a: -10°F to -5°F |
| Good Hope | Zone 5b: -15°F to -10°F |
| Goodfield | Zone 5b: -15°F to -10°F |
| Goodings Grove | Zone 5b: -15°F to -10°F |
| Goodwine | Zone 5b: -15°F to -10°F |
| Goofy Ridge | Zone 5b: -15°F to -10°F |
| Goreville | Zone 6b: -5°F to 0°F |
| Gorham | Zone 6b: -5°F to 0°F |
| Grafton | Zone 6a: -10°F to -5°F |
| Grand Chain | Zone 7a: 0°F to 5°F |
| Grand Detour | Zone 5a: -20°F to -15°F |
| Grand Ridge | Zone 5b: -15°F to -10°F |
| Grand Tower | Zone 6b: -5°F to 0°F |
| Grandview | Zone 5b: -15°F to -10°F |
| Grandwood Park | Zone 5b: -15°F to -10°F |
| Granite City | Zone 6b: -5°F to 0°F |
| Grant Park | Zone 5b: -15°F to -10°F |
| Grantfork | Zone 6a: -10°F to -5°F |
| Grantsburg | Zone 6b: -5°F to 0°F |
| Granville | Zone 5b: -15°F to -10°F |
| Graymont | Zone 5b: -15°F to -10°F |
| Grayslake | Zone 5b: -15°F to -10°F |
| Grayville | Zone 6b: -5°F to 0°F |
| Great Lakes | Zone 5b: -15°F to -10°F |
| Green Oaks | Zone 5b: -15°F to -10°F |
| Green Rock | Zone 5b: -15°F to -10°F |
| Green Valley | Zone 5b: -15°F to -10°F |
| Greenbush | Zone 5b: -15°F to -10°F |
| Greenfield | Zone 6a: -10°F to -5°F |
| Greenup | Zone 6a: -10°F to -5°F |
| Greenview | Zone 5b: -15°F to -10°F |
| Greenville | Zone 6a: -10°F to -5°F |
| Greenwood | Zone 5b: -15°F to -10°F |
| Gridley | Zone 5b: -15°F to -10°F |
| Griggsville | Zone 6a: -10°F to -5°F |
| Groveland | Zone 5b: -15°F to -10°F |
| Gulf Port | Zone 5b: -15°F to -10°F |
| Gurnee | Zone 5b: -15°F to -10°F |
| Hagarstown | Zone 6a: -10°F to -5°F |
| Hahnaman | Zone 5b: -15°F to -10°F |
| Hainesville | Zone 5b: -15°F to -10°F |
| Hamburg | Zone 6a: -10°F to -5°F |
| Hamel | Zone 6a: -10°F to -5°F |
| Hamilton | Zone 5b: -15°F to -10°F |
| Hamletsburg | Zone 7a: 0°F to 5°F |
| Hammond | Zone 6a: -10°F to -5°F |
| Hampshire | Zone 5b: -15°F to -10°F |
| Hampton | Zone 5b: -15°F to -10°F |
| Hanna City | Zone 5b: -15°F to -10°F |
| Hanover | Zone 5a: -20°F to -15°F |
| Hanover Park | Zone 5b: -15°F to -10°F |
| Hardin | Zone 6a: -10°F to -5°F |
| Harlem | Zone 5b: -15°F to -10°F |
| Harmon | Zone 5b: -15°F to -10°F |
| Harrisburg | Zone 6b: -5°F to 0°F |
| Harrison | Zone 6b: -5°F to 0°F |
| Harristown | Zone 6a: -10°F to -5°F |
| Hartford | Zone 6b: -5°F to 0°F |
| Hartland | Zone 5b: -15°F to -10°F |
| Hartsburg | Zone 5b: -15°F to -10°F |
| Harvard | Zone 5b: -15°F to -10°F |
| Harvel | Zone 6a: -10°F to -5°F |
| Harvey | Zone 5b: -15°F to -10°F |
| Harwood Heights | Zone 5b: -15°F to -10°F |
| Havana | Zone 5b: -15°F to -10°F |
| Hawthorn Woods | Zone 5b: -15°F to -10°F |
| Hazel Crest | Zone 5b: -15°F to -10°F |
| Hebron | Zone 5b: -15°F to -10°F |
| Hecker | Zone 6b: -5°F to 0°F |
| Henderson | Zone 5b: -15°F to -10°F |
| Hennepin | Zone 5b: -15°F to -10°F |
| Henning | Zone 5b: -15°F to -10°F |
| Henry | Zone 5b: -15°F to -10°F |
| Herald | Zone 6b: -5°F to 0°F |
| Herod | Zone 6b: -5°F to 0°F |
| Herrick | Zone 6a: -10°F to -5°F |
| Herrin | Zone 6b: -5°F to 0°F |
| Herscher | Zone 5b: -15°F to -10°F |
| Hettick | Zone 6a: -10°F to -5°F |
| Heyworth | Zone 5b: -15°F to -10°F |
| Hickory Hills | Zone 5b: -15°F to -10°F |
| Hidalgo | Zone 6a: -10°F to -5°F |
| Highland | Zone 6a: -10°F to -5°F |
| Highland Park | Zone 5b: -15°F to -10°F |
| Highwood | Zone 5b: -15°F to -10°F |
| Hillcrest | Zone 5a: -20°F to -15°F |
| Hillsboro | Zone 6a: -10°F to -5°F |
| Hillsdale | Zone 5b: -15°F to -10°F |
| Hillside | Zone 5b: -15°F to -10°F |
| Hillview | Zone 6a: -10°F to -5°F |
| Hinckley | Zone 5b: -15°F to -10°F |
| Hindsboro | Zone 6a: -10°F to -5°F |
| Hines | Zone 5b: -15°F to -10°F |
| Hinsdale | Zone 5b: -15°F to -10°F |
| Hodgkins | Zone 5b: -15°F to -10°F |
| Hoffman | Zone 6b: -5°F to 0°F |
| Hoffman Estates | Zone 5b: -15°F to -10°F |
| Holcomb | Zone 5a: -20°F to -15°F |
| Holiday Hills | Zone 5b: -15°F to -10°F |
| Holiday Shores | Zone 6a: -10°F to -5°F |
| Holland | Zone 6a: -10°F to -5°F |
| Hollis | Zone 5b: -15°F to -10°F |
| Hollowayville | Zone 5b: -15°F to -10°F |
| Homer | Zone 5b: -15°F to -10°F |
| Homer Glen | Zone 5b: -15°F to -10°F |
| Hometown | Zone 6a: -10°F to -5°F |
| Homewood | Zone 5b: -15°F to -10°F |
| Hoopeston | Zone 5b: -15°F to -10°F |
| Hooppole | Zone 5b: -15°F to -10°F |
| Hopedale | Zone 5b: -15°F to -10°F |
| Hopewell | Zone 5b: -15°F to -10°F |
| Hopkins Park | Zone 5b: -15°F to -10°F |
| Hoyleton | Zone 6b: -5°F to 0°F |
| Hudson | Zone 5b: -15°F to -10°F |
| Huey | Zone 6b: -5°F to 0°F |
| Hull | Zone 6a: -10°F to -5°F |
| Humboldt | Zone 6a: -10°F to -5°F |
| Hume | Zone 6a: -10°F to -5°F |
| Huntley | Zone 5b: -15°F to -10°F |
| Huntsville | Zone 5b: -15°F to -10°F |
| Hurst | Zone 6b: -5°F to 0°F |
| Hutsonville | Zone 6a: -10°F to -5°F |
| Illinois City | Zone 5b: -15°F to -10°F |
| Illiopolis | Zone 6a: -10°F to -5°F |
| Ina | Zone 6b: -5°F to 0°F |
| Indian Creek | Zone 5b: -15°F to -10°F |
| Indian Head Park | Zone 5b: -15°F to -10°F |
| Indianola | Zone 5b: -15°F to -10°F |
| Industry | Zone 5b: -15°F to -10°F |
| Ingalls Park | Zone 5b: -15°F to -10°F |
| Ingleside | Zone 5b: -15°F to -10°F |
| Ingraham | Zone 6a: -10°F to -5°F |
| Inverness | Zone 5b: -15°F to -10°F |
| Iola | Zone 6a: -10°F to -5°F |
| Ipava | Zone 5b: -15°F to -10°F |
| Iroquois | Zone 5b: -15°F to -10°F |
| Irving | Zone 6a: -10°F to -5°F |
| Irvington | Zone 6b: -5°F to 0°F |
| Irwin | Zone 5b: -15°F to -10°F |
| Island Grove | Zone 6a: -10°F to -5°F |
| Island Lake | Zone 5b: -15°F to -10°F |
| Itasca | Zone 5b: -15°F to -10°F |
| Iuka | Zone 6a: -10°F to -5°F |
| Ivesdale | Zone 5b: -15°F to -10°F |
| Jacksonville | Zone 6a: -10°F to -5°F |
| Jacob | Zone 6b: -5°F to 0°F |
| Jamaica | Zone 5b: -15°F to -10°F |
| Janesville | Zone 6a: -10°F to -5°F |
| Jeisyville | Zone 5b: -15°F to -10°F |
| Jerome | Zone 6a: -10°F to -5°F |
| Jerseyville | Zone 6a: -10°F to -5°F |
| Jewett | Zone 6a: -10°F to -5°F |
| Johannisburg | Zone 6b: -5°F to 0°F |
| Johnsburg | Zone 5b: -15°F to -10°F |
| Johnsonville | Zone 6a: -10°F to -5°F |
| Johnston City | Zone 6b: -5°F to 0°F |
| Joliet | Zone 5b: -15°F to -10°F |
| Jonesboro | Zone 6b: -5°F to 0°F |
| Joppa | Zone 7a: 0°F to 5°F |
| Joy | Zone 5b: -15°F to -10°F |
| Junction | Zone 6b: -5°F to 0°F |
| Junction City | Zone 6a: -10°F to -5°F |
| Justice | Zone 5b: -15°F to -10°F |
| Kampsville | Zone 6a: -10°F to -5°F |
| Kane | Zone 6a: -10°F to -5°F |
| Kaneville | Zone 5b: -15°F to -10°F |
| Kangley | Zone 5b: -15°F to -10°F |
| Kankakee | Zone 5b: -15°F to -10°F |
| Kansas | Zone 6a: -10°F to -5°F |
| Kappa | Zone 5b: -15°F to -10°F |
| Karbers Ridge | Zone 6b: -5°F to 0°F |
| Karnak | Zone 7a: 0°F to 5°F |
| Kasbeer | Zone 5b: -15°F to -10°F |
| Kaskaskia | Zone 6b: -5°F to 0°F |
| Keenes | Zone 6a: -10°F to -5°F |
| Keensburg | Zone 6b: -5°F to 0°F |
| Keithsburg | Zone 5b: -15°F to -10°F |
| Kell | Zone 6a: -10°F to -5°F |
| Kempton | Zone 5b: -15°F to -10°F |
| Kenilworth | Zone 5b: -15°F to -10°F |
| Kenney | Zone 5b: -15°F to -10°F |
| Kent | Zone 5a: -20°F to -15°F |
| Kewanee | Zone 5b: -15°F to -10°F |
| Keyesport | Zone 6a: -10°F to -5°F |
| Kickapoo | Zone 5b: -15°F to -10°F |
| Kilbourne | Zone 5b: -15°F to -10°F |
| Kildeer | Zone 5b: -15°F to -10°F |
| Kincaid | Zone 6a: -10°F to -5°F |
| Kinderhook | Zone 6a: -10°F to -5°F |
| Kingston | Zone 5b: -15°F to -10°F |
| Kingston Mines | Zone 5b: -15°F to -10°F |
| Kinmundy | Zone 6a: -10°F to -5°F |
| Kinsman | Zone 5b: -15°F to -10°F |
| Kirkland | Zone 5b: -15°F to -10°F |
| Kirkwood | Zone 5b: -15°F to -10°F |
| Knollwood | Zone 5b: -15°F to -10°F |
| Knoxville | Zone 5b: -15°F to -10°F |
| La Grange | Zone 5b: -15°F to -10°F |
| La Grange Park | Zone 5b: -15°F to -10°F |
| La Harpe | Zone 5b: -15°F to -10°F |
| La Moille | Zone 5b: -15°F to -10°F |
| La Place | Zone 5b: -15°F to -10°F |
| La Prairie | Zone 5b: -15°F to -10°F |
| La Rose | Zone 5b: -15°F to -10°F |
| La Salle | Zone 5b: -15°F to -10°F |
| La Salle/Peru | Zone 5b: -15°F to -10°F |
| Lacon | Zone 5b: -15°F to -10°F |
| Ladd | Zone 5b: -15°F to -10°F |
| Lafayette | Zone 5b: -15°F to -10°F |
| Lafox | Zone 5b: -15°F to -10°F |
| Lake Barrington | Zone 5b: -15°F to -10°F |
| Lake Bluff | Zone 5b: -15°F to -10°F |
| Lake Catherine | Zone 5b: -15°F to -10°F |
| Lake Forest | Zone 5b: -15°F to -10°F |
| Lake Fork | Zone 5b: -15°F to -10°F |
| Lake in the Hills | Zone 5b: -15°F to -10°F |
| Lake Ka-Ho | Zone 6a: -10°F to -5°F |
| Lake of the Woods | Zone 5b: -15°F to -10°F |
| Lake Summerset | Zone 5a: -20°F to -15°F |
| Lake Villa | Zone 5b: -15°F to -10°F |
| Lake Zurich | Zone 5b: -15°F to -10°F |
| Lakemoor | Zone 5b: -15°F to -10°F |
| Lakewood | Zone 6a: -10°F to -5°F |
| Lakewood Shores | Zone 5b: -15°F to -10°F |
| Lanark | Zone 5a: -20°F to -15°F |
| Lancaster | Zone 6a: -10°F to -5°F |
| Lane | Zone 5b: -15°F to -10°F |
| Lanesville | Zone 5b: -15°F to -10°F |
| Langleyville | Zone 6a: -10°F to -5°F |
| Lansing | Zone 5b: -15°F to -10°F |
| Latham | Zone 5b: -15°F to -10°F |
| Laura | Zone 5b: -15°F to -10°F |
| Lawndale | Zone 5b: -15°F to -10°F |
| Lawrenceville | Zone 6a: -10°F to -5°F |
| Le Roy | Zone 5b: -15°F to -10°F |
| Leaf River | Zone 5a: -20°F to -15°F |
| Lebanon | Zone 6b: -5°F to 0°F |
| Lee | Zone 5a: -20°F to -15°F |
| Lee Center | Zone 5b: -15°F to -10°F |
| Leland | Zone 5b: -15°F to -10°F |
| Leland Grove | Zone 6a: -10°F to -5°F |
| Lemont | Zone 5b: -15°F to -10°F |
| Lena | Zone 5a: -20°F to -15°F |
| Lenzburg | Zone 6b: -5°F to 0°F |
| Leonore | Zone 5b: -15°F to -10°F |
| Lerna | Zone 6a: -10°F to -5°F |
| Lewistown | Zone 5b: -15°F to -10°F |
| Lexington | Zone 5b: -15°F to -10°F |
| Liberty | Zone 6a: -10°F to -5°F |
| Libertyville | Zone 5b: -15°F to -10°F |
| Lily Lake | Zone 5b: -15°F to -10°F |
| Lima | Zone 6a: -10°F to -5°F |
| Limestone | Zone 5b: -15°F to -10°F |
| Lincoln | Zone 5b: -15°F to -10°F |
| Lincoln's New Salem | Zone 5b: -15°F to -10°F |
| Lincolnshire | Zone 5b: -15°F to -10°F |
| Lincolnwood | Zone 6a: -10°F to -5°F |
| Lindenhurst | Zone 5b: -15°F to -10°F |
| Lindenwood | Zone 5a: -20°F to -15°F |
| Lisbon | Zone 5b: -15°F to -10°F |
| Lisle | Zone 5b: -15°F to -10°F |
| Litchfield | Zone 6a: -10°F to -5°F |
| Literberry | Zone 6a: -10°F to -5°F |
| Little York | Zone 5b: -15°F to -10°F |
| Littleton | Zone 5b: -15°F to -10°F |
| Lively Grove | Zone 6b: -5°F to 0°F |
| Liverpool | Zone 5b: -15°F to -10°F |
| Livingston | Zone 6a: -10°F to -5°F |
| Loami | Zone 6a: -10°F to -5°F |
| Lockport | Zone 5b: -15°F to -10°F |
| Loda | Zone 5b: -15°F to -10°F |
| Logan | Zone 6b: -5°F to 0°F |
| Lomax | Zone 5b: -15°F to -10°F |
| Lombard | Zone 5b: -15°F to -10°F |
| London Mills | Zone 5b: -15°F to -10°F |
| Long Creek | Zone 5b: -15°F to -10°F |
| Long Grove | Zone 5b: -15°F to -10°F |
| Long Lake | Zone 5b: -15°F to -10°F |
| Long Point | Zone 5b: -15°F to -10°F |
| Longview | Zone 6a: -10°F to -5°F |
| Loogootee | Zone 6a: -10°F to -5°F |
| Loraine | Zone 5b: -15°F to -10°F |
| Loran | Zone 5a: -20°F to -15°F |
| Lost Nation | Zone 5a: -20°F to -15°F |
| Lostant | Zone 5b: -15°F to -10°F |
| Louisville | Zone 6a: -10°F to -5°F |
| Lovejoy | Zone 6b: -5°F to 0°F |
| Loves Park | Zone 5b: -15°F to -10°F |
| Lovington | Zone 6a: -10°F to -5°F |
| Lowder | Zone 6a: -10°F to -5°F |
| Lowpoint | Zone 5b: -15°F to -10°F |
| Ludlow | Zone 5b: -15°F to -10°F |
| Lyndon | Zone 5b: -15°F to -10°F |
| Lynn Center | Zone 5b: -15°F to -10°F |
| Lynnville | Zone 6a: -10°F to -5°F |
| Lynwood | Zone 5b: -15°F to -10°F |
| Lyons | Zone 6a: -10°F to -5°F |
| Macedonia | Zone 6b: -5°F to 0°F |
| Machesney Park | Zone 5b: -15°F to -10°F |
| Mackinaw | Zone 5b: -15°F to -10°F |
| Macomb | Zone 5b: -15°F to -10°F |
| Macon | Zone 6a: -10°F to -5°F |
| Madison | Zone 6b: -5°F to 0°F |
| Maeystown | Zone 6b: -5°F to 0°F |
| Magnolia | Zone 5b: -15°F to -10°F |
| Mahomet | Zone 5b: -15°F to -10°F |
| Makanda | Zone 6b: -5°F to 0°F |
| Malden | Zone 5b: -15°F to -10°F |
| Malta | Zone 5b: -15°F to -10°F |
| Manchester | Zone 5b: -15°F to -10°F |
| Manhattan | Zone 5b: -15°F to -10°F |
| Manito | Zone 5b: -15°F to -10°F |
| Manlius | Zone 5b: -15°F to -10°F |
| Mansfield | Zone 5b: -15°F to -10°F |
| Manteno | Zone 5b: -15°F to -10°F |
| Maple Park | Zone 5b: -15°F to -10°F |
| Mapleton | Zone 5b: -15°F to -10°F |
| Maquon | Zone 5b: -15°F to -10°F |
| Marengo | Zone 5b: -15°F to -10°F |
| Marietta | Zone 5b: -15°F to -10°F |
| Marine | Zone 6a: -10°F to -5°F |
| Marion | Zone 6b: -5°F to 0°F |
| Marissa | Zone 6b: -5°F to 0°F |
| Mark | Zone 5b: -15°F to -10°F |
| Markham | Zone 5b: -15°F to -10°F |
| Maroa | Zone 5b: -15°F to -10°F |
| Marquette Heights | Zone 5b: -15°F to -10°F |
| Marseilles | Zone 5b: -15°F to -10°F |
| Marshall | Zone 6a: -10°F to -5°F |
| Martinsburg | Zone 6a: -10°F to -5°F |
| Martinsville | Zone 6a: -10°F to -5°F |
| Martinton | Zone 5b: -15°F to -10°F |
| Maryland | Zone 5a: -20°F to -15°F |
| Maryville | Zone 6a: -10°F to -5°F |
| Mascoutah | Zone 6b: -5°F to 0°F |
| Mason | Zone 6a: -10°F to -5°F |
| Mason City | Zone 5b: -15°F to -10°F |
| Matherville | Zone 5b: -15°F to -10°F |
| Matteson | Zone 5b: -15°F to -10°F |
| Mattoon | Zone 6a: -10°F to -5°F |
| Maunie | Zone 6b: -5°F to 0°F |
| Maywood | Zone 5b: -15°F to -10°F |
| Mazon | Zone 5b: -15°F to -10°F |
| McClure | Zone 6b: -5°F to 0°F |
| McConnell | Zone 5a: -20°F to -15°F |
| McCook | Zone 5b: -15°F to -10°F |
| McCullom Lake | Zone 5b: -15°F to -10°F |
| McHenry | Zone 5b: -15°F to -10°F |
| McLean | Zone 5b: -15°F to -10°F |
| McLeansboro | Zone 6a: -10°F to -5°F |
| McNabb | Zone 5b: -15°F to -10°F |
| Mechanicsburg | Zone 6a: -10°F to -5°F |
| Media | Zone 5b: -15°F to -10°F |
| Medinah | Zone 5b: -15°F to -10°F |
| Medora | Zone 6a: -10°F to -5°F |
| Melrose Park | Zone 5b: -15°F to -10°F |
| Melvin | Zone 5b: -15°F to -10°F |
| Menard | Zone 6b: -5°F to 0°F |
| Mendon | Zone 5b: -15°F to -10°F |
| Mendota | Zone 5b: -15°F to -10°F |
| Menominee | Zone 5a: -20°F to -15°F |
| Meredosia | Zone 6a: -10°F to -5°F |
| Merna | Zone 5b: -15°F to -10°F |
| Merrionette Park | Zone 6a: -10°F to -5°F |
| Metamora | Zone 5b: -15°F to -10°F |
| Metcalf | Zone 6a: -10°F to -5°F |
| Metropolis | Zone 7a: 0°F to 5°F |
| Mettawa | Zone 5b: -15°F to -10°F |
| Michael | Zone 6a: -10°F to -5°F |
| Middletown | Zone 5b: -15°F to -10°F |
| Midlothian | Zone 5b: -15°F to -10°F |
| Milan | Zone 5b: -15°F to -10°F |
| Milford | Zone 5b: -15°F to -10°F |
| Mill Creek | Zone 6b: -5°F to 0°F |
| Mill Shoals | Zone 6b: -5°F to 0°F |
| Millbrook | Zone 5b: -15°F to -10°F |
| Milledgeville | Zone 5a: -20°F to -15°F |
| Miller City | Zone 6b: -5°F to 0°F |
| Millersburg | Zone 5b: -15°F to -10°F |
| Millington | Zone 5b: -15°F to -10°F |
| Millstadt | Zone 6b: -5°F to 0°F |
| Milmine | Zone 5b: -15°F to -10°F |
| Milton | Zone 6a: -10°F to -5°F |
| Mineral | Zone 5b: -15°F to -10°F |
| Minier | Zone 5b: -15°F to -10°F |
| Minonk | Zone 5b: -15°F to -10°F |
| Minooka | Zone 5b: -15°F to -10°F |
| Mitchell | Zone 6b: -5°F to 0°F |
| Mode | Zone 6a: -10°F to -5°F |
| Modesto | Zone 6a: -10°F to -5°F |
| Modoc | Zone 6b: -5°F to 0°F |
| Mokena | Zone 5b: -15°F to -10°F |
| Moline | Zone 5b: -15°F to -10°F |
| Momence | Zone 5b: -15°F to -10°F |
| Monee | Zone 5b: -15°F to -10°F |
| Monmouth | Zone 5b: -15°F to -10°F |
| Monroe Center | Zone 5b: -15°F to -10°F |
| Montezuma | Zone 6a: -10°F to -5°F |
| Montgomery | Zone 5b: -15°F to -10°F |
| Monticello | Zone 5b: -15°F to -10°F |
| Montrose | Zone 6a: -10°F to -5°F |
| Mooseheart | Zone 5b: -15°F to -10°F |
| Moro | Zone 6a: -10°F to -5°F |
| Morris | Zone 5b: -15°F to -10°F |
| Morrison | Zone 5a: -20°F to -15°F |
| Morrisonville | Zone 5b: -15°F to -10°F |
| Morton | Zone 5b: -15°F to -10°F |
| Morton Grove | Zone 6a: -10°F to -5°F |
| Mossville | Zone 5b: -15°F to -10°F |
| Mound City | Zone 7a: 0°F to 5°F |
| Mounds | Zone 7a: 0°F to 5°F |
| Mount Auburn | Zone 6a: -10°F to -5°F |
| Mount Carmel | Zone 6b: -5°F to 0°F |
| Mount Carroll | Zone 5a: -20°F to -15°F |
| Mount Clare | Zone 6a: -10°F to -5°F |
| Mount Erie | Zone 6b: -5°F to 0°F |
| Mount Morris | Zone 5a: -20°F to -15°F |
| Mount Olive | Zone 6a: -10°F to -5°F |
| Mount Prospect | Zone 5b: -15°F to -10°F |
| Mount Pulaski | Zone 5b: -15°F to -10°F |
| Mount Sterling | Zone 5b: -15°F to -10°F |
| Mount Vernon | Zone 6a: -10°F to -5°F |
| Mount Zion | Zone 6a: -10°F to -5°F |
| Moweaqua | Zone 6a: -10°F to -5°F |
| Mozier | Zone 6a: -10°F to -5°F |
| Muddy | Zone 6b: -5°F to 0°F |
| Mulberry Grove | Zone 6a: -10°F to -5°F |
| Mulkeytown | Zone 6b: -5°F to 0°F |
| Muncie | Zone 5b: -15°F to -10°F |
| Mundelein | Zone 5b: -15°F to -10°F |
| Murdock | Zone 6a: -10°F to -5°F |
| Murphysboro | Zone 6b: -5°F to 0°F |
| Murrayville | Zone 6a: -10°F to -5°F |
| Nachusa | Zone 5a: -20°F to -15°F |
| Nameoki | Zone 6b: -5°F to 0°F |
| Naperville | Zone 5b: -15°F to -10°F |
| Naplate | Zone 5b: -15°F to -10°F |
| Naples | Zone 6a: -10°F to -5°F |
| Nashville | Zone 6b: -5°F to 0°F |
| Nason | Zone 6b: -5°F to 0°F |
| National City | Zone 6b: -5°F to 0°F |
| National Stock Yards | Zone 6b: -5°F to 0°F |
| Nauvoo | Zone 5b: -15°F to -10°F |
| Nebo | Zone 6a: -10°F to -5°F |
| Nelson | Zone 5a: -20°F to -15°F |
| Neoga | Zone 6a: -10°F to -5°F |
| Neponset | Zone 5b: -15°F to -10°F |
| Nevada | Zone 5b: -15°F to -10°F |
| New Athens | Zone 6b: -5°F to 0°F |
| New Baden | Zone 6b: -5°F to 0°F |
| New Bedford | Zone 5b: -15°F to -10°F |
| New Berlin | Zone 6a: -10°F to -5°F |
| New Boston | Zone 5b: -15°F to -10°F |
| New Burnside | Zone 6b: -5°F to 0°F |
| New Canton | Zone 6a: -10°F to -5°F |
| New Douglas | Zone 6a: -10°F to -5°F |
| New Grand Chain | Zone 7a: 0°F to 5°F |
| New Haven | Zone 6b: -5°F to 0°F |
| New Holland | Zone 5b: -15°F to -10°F |
| New Lenox | Zone 5b: -15°F to -10°F |
| New Memphis | Zone 6b: -5°F to 0°F |
| New Milford | Zone 5b: -15°F to -10°F |
| New Minden | Zone 6b: -5°F to 0°F |
| New Salem | Zone 5b: -15°F to -10°F |
| New Windsor | Zone 5b: -15°F to -10°F |
| Newark | Zone 5b: -15°F to -10°F |
| Newell | Zone 5b: -15°F to -10°F |
| Newman | Zone 6a: -10°F to -5°F |
| Newton | Zone 6a: -10°F to -5°F |
| Niantic | Zone 6a: -10°F to -5°F |
| Niles | Zone 6a: -10°F to -5°F |
| Nilwood | Zone 6a: -10°F to -5°F |
| Niota | Zone 5b: -15°F to -10°F |
| Noble | Zone 6a: -10°F to -5°F |
| Nokomis | Zone 6a: -10°F to -5°F |
| Nora | Zone 5a: -20°F to -15°F |
| Normal | Zone 5b: -15°F to -10°F |
| Norridge | Zone 5b: -15°F to -10°F |
| Norris | Zone 5b: -15°F to -10°F |
| Norris City | Zone 6b: -5°F to 0°F |
| North Aurora | Zone 5b: -15°F to -10°F |
| North Barrington | Zone 5b: -15°F to -10°F |
| North Chicago | Zone 5b: -15°F to -10°F |
| North Henderson | Zone 5b: -15°F to -10°F |
| North Pekin | Zone 5b: -15°F to -10°F |
| North Peoria | Zone 5b: -15°F to -10°F |
| North Riverside | Zone 6a: -10°F to -5°F |
| Northbrook | Zone 5b: -15°F to -10°F |
| Northfield | Zone 5b: -15°F to -10°F |
| Northlake | Zone 5b: -15°F to -10°F |
| Norwood | Zone 5b: -15°F to -10°F |
| O'Fallon | Zone 6b: -5°F to 0°F |
| Oak Brook | Zone 5b: -15°F to -10°F |
| Oak Forest | Zone 5b: -15°F to -10°F |
| Oak Grove | Zone 5b: -15°F to -10°F |
| Oak Lawn | Zone 6a: -10°F to -5°F |
| Oak Park | Zone 6a: -10°F to -5°F |
| Oak Run | Zone 5b: -15°F to -10°F |
| Oakbrook Terrace | Zone 5b: -15°F to -10°F |
| Oakdale | Zone 6b: -5°F to 0°F |
| Oakford | Zone 5b: -15°F to -10°F |
| Oakland | Zone 6a: -10°F to -5°F |
| Oakley | Zone 5b: -15°F to -10°F |
| Oakwood | Zone 5b: -15°F to -10°F |
| Oakwood Hills | Zone 5b: -15°F to -10°F |
| Oblong | Zone 6a: -10°F to -5°F |
| Oconee | Zone 6a: -10°F to -5°F |
| Odell | Zone 5b: -15°F to -10°F |
| Odin | Zone 6a: -10°F to -5°F |
| Ogden | Zone 5b: -15°F to -10°F |
| Oglesby | Zone 5b: -15°F to -10°F |
| Ohio | Zone 5b: -15°F to -10°F |
| Ohlman | Zone 6a: -10°F to -5°F |
| Okawville | Zone 6b: -5°F to 0°F |
| Old Mill Creek | Zone 5b: -15°F to -10°F |
| Old Ripley | Zone 6a: -10°F to -5°F |
| Old Shawneetown | Zone 6b: -5°F to 0°F |
| Olive Branch | Zone 6b: -5°F to 0°F |
| Olivet | Zone 5b: -15°F to -10°F |
| Olmsted | Zone 7a: 0°F to 5°F |
| Olney | Zone 6a: -10°F to -5°F |
| Olympia Fields | Zone 5b: -15°F to -10°F |
| Omaha | Zone 6b: -5°F to 0°F |
| Omega | Zone 6a: -10°F to -5°F |
| Onarga | Zone 5b: -15°F to -10°F |
| Oneco | Zone 5a: -20°F to -15°F |
| Oneida | Zone 5b: -15°F to -10°F |
| Opdyke | Zone 6a: -10°F to -5°F |
| Ophiem | Zone 5b: -15°F to -10°F |
| Oquawka | Zone 5b: -15°F to -10°F |
| Orangeville | Zone 5a: -20°F to -15°F |
| Oraville | Zone 6b: -5°F to 0°F |
| Oreana | Zone 5b: -15°F to -10°F |
| Oregon | Zone 5a: -20°F to -15°F |
| Orient | Zone 6b: -5°F to 0°F |
| Orion | Zone 5b: -15°F to -10°F |
| Orland Hills | Zone 5b: -15°F to -10°F |
| Orland Park | Zone 5b: -15°F to -10°F |
| Osceola | Zone 5b: -15°F to -10°F |
| Osco | Zone 5b: -15°F to -10°F |
| Oswego | Zone 5b: -15°F to -10°F |
| Ottawa | Zone 5b: -15°F to -10°F |
| Otterville | Zone 6a: -10°F to -5°F |
| Owaneco | Zone 6a: -10°F to -5°F |
| Ozark | Zone 6b: -5°F to 0°F |
| Paderborn | Zone 6b: -5°F to 0°F |
| Palatine | Zone 5b: -15°F to -10°F |
| Palestine | Zone 6a: -10°F to -5°F |
| Palmer | Zone 6a: -10°F to -5°F |
| Palmyra | Zone 6a: -10°F to -5°F |
| Paloma | Zone 6a: -10°F to -5°F |
| Palos Heights | Zone 5b: -15°F to -10°F |
| Palos Hills | Zone 5b: -15°F to -10°F |
| Palos Park | Zone 5b: -15°F to -10°F |
| Pana | Zone 6a: -10°F to -5°F |
| Panama | Zone 6a: -10°F to -5°F |
| Panola | Zone 5b: -15°F to -10°F |
| Papineau | Zone 5b: -15°F to -10°F |
| Paris | Zone 6a: -10°F to -5°F |
| Park City | Zone 5b: -15°F to -10°F |
| Park Forest | Zone 5b: -15°F to -10°F |
| Park Ridge | Zone 5b: -15°F to -10°F |
| Parkersburg | Zone 6a: -10°F to -5°F |
| Patoka | Zone 6a: -10°F to -5°F |
| Patterson | Zone 6a: -10°F to -5°F |
| Paw Paw | Zone 5b: -15°F to -10°F |
| Pawnee | Zone 6a: -10°F to -5°F |
| Paxton | Zone 5b: -15°F to -10°F |
| Payson | Zone 6a: -10°F to -5°F |
| Pearl | Zone 6a: -10°F to -5°F |
| Pearl City | Zone 5a: -20°F to -15°F |
| Pecatonica | Zone 5a: -20°F to -15°F |
| Pekin | Zone 5b: -15°F to -10°F |
| Pembroke Township | Zone 5b: -15°F to -10°F |
| Penfield | Zone 5b: -15°F to -10°F |
| Peoria | Zone 5b: -15°F to -10°F |
| Peoria Heights | Zone 5b: -15°F to -10°F |
| Peotone | Zone 5b: -15°F to -10°F |
| Percy | Zone 6b: -5°F to 0°F |
| Perks | Zone 7a: 0°F to 5°F |
| Perry | Zone 5b: -15°F to -10°F |
| Peru | Zone 5b: -15°F to -10°F |
| Pesotum | Zone 5b: -15°F to -10°F |
| Petersburg | Zone 5b: -15°F to -10°F |
| Phillipstown | Zone 6b: -5°F to 0°F |
| Philo | Zone 5b: -15°F to -10°F |
| Phoenix | Zone 6a: -10°F to -5°F |
| Piasa | Zone 6a: -10°F to -5°F |
| Pierron | Zone 6a: -10°F to -5°F |
| Pinckneyville | Zone 6b: -5°F to 0°F |
| Pingree Grove | Zone 5b: -15°F to -10°F |
| Piper City | Zone 5b: -15°F to -10°F |
| Pistakee Highlands | Zone 5b: -15°F to -10°F |
| Pittsburg | Zone 6b: -5°F to 0°F |
| Pittsfield | Zone 5b: -15°F to -10°F |
| Plainfield | Zone 5b: -15°F to -10°F |
| Plainville | Zone 6a: -10°F to -5°F |
| Plano | Zone 5b: -15°F to -10°F |
| Plato Center | Zone 5b: -15°F to -10°F |
| Plattville | Zone 5b: -15°F to -10°F |
| Pleasant Hill | Zone 6a: -10°F to -5°F |
| Pleasant Plains | Zone 5b: -15°F to -10°F |
| Plum Hill | Zone 6b: -5°F to 0°F |
| Plymouth | Zone 5b: -15°F to -10°F |
| Pocahontas | Zone 6a: -10°F to -5°F |
| Polo | Zone 5a: -20°F to -15°F |
| Pomona | Zone 6b: -5°F to 0°F |
| Pontiac | Zone 5b: -15°F to -10°F |
| Pontoon Beach | Zone 6b: -5°F to 0°F |
| Pontoosuc | Zone 5b: -15°F to -10°F |
| Poplar Grove | Zone 5b: -15°F to -10°F |
| Port Barrington | Zone 5b: -15°F to -10°F |
| Port Byron | Zone 5b: -15°F to -10°F |
| Portland | Zone 5b: -15°F to -10°F |
| Posen | Zone 6a: -10°F to -5°F |
| Potomac | Zone 5b: -15°F to -10°F |
| Prairie City | Zone 5b: -15°F to -10°F |
| Prairie du Rocher | Zone 6b: -5°F to 0°F |
| Prairie Grove | Zone 5b: -15°F to -10°F |
| Preemption | Zone 5b: -15°F to -10°F |
| Preston Heights | Zone 5b: -15°F to -10°F |
| Princeton | Zone 5b: -15°F to -10°F |
| Princeville | Zone 5b: -15°F to -10°F |
| Prophetstown | Zone 5b: -15°F to -10°F |
| Prospect Heights | Zone 5b: -15°F to -10°F |
| Pulaski | Zone 7a: 0°F to 5°F |
| Putnam | Zone 5b: -15°F to -10°F |
| Quad City International Airport | Zone 5b: -15°F to -10°F |
| Quincy | Zone 6a: -10°F to -5°F |
| Radom | Zone 6b: -5°F to 0°F |
| Raleigh | Zone 6b: -5°F to 0°F |
| Ramsey | Zone 6a: -10°F to -5°F |
| Randolph | Zone 5b: -15°F to -10°F |
| Rankin | Zone 5b: -15°F to -10°F |
| Ransom | Zone 5b: -15°F to -10°F |
| Rantoul | Zone 5b: -15°F to -10°F |
| Rapids City | Zone 5b: -15°F to -10°F |
| Raritan | Zone 5b: -15°F to -10°F |
| Raymond | Zone 6a: -10°F to -5°F |
| Reading | Zone 5b: -15°F to -10°F |
| Red Bud | Zone 6b: -5°F to 0°F |
| Reddick | Zone 5b: -15°F to -10°F |
| Redmon | Zone 6a: -10°F to -5°F |
| Renault | Zone 6b: -5°F to 0°F |
| Rentchler | Zone 6b: -5°F to 0°F |
| Reynolds | Zone 5b: -15°F to -10°F |
| Richmond | Zone 5b: -15°F to -10°F |
| Richton Park | Zone 5b: -15°F to -10°F |
| Richview | Zone 6b: -5°F to 0°F |
| Ridge Farm | Zone 5b: -15°F to -10°F |
| Ridgway | Zone 6b: -5°F to 0°F |
| Ridott | Zone 5a: -20°F to -15°F |
| Riley | Zone 5b: -15°F to -10°F |
| Rinard | Zone 6a: -10°F to -5°F |
| Ringwood | Zone 5b: -15°F to -10°F |
| Rio | Zone 5b: -15°F to -10°F |
| Ripley | Zone 5b: -15°F to -10°F |
| River Forest | Zone 6a: -10°F to -5°F |
| River Grove | Zone 5b: -15°F to -10°F |
| Riverdale | Zone 6a: -10°F to -5°F |
| Riverside | Zone 6a: -10°F to -5°F |
| Riverton | Zone 5b: -15°F to -10°F |
| Riverwoods | Zone 5b: -15°F to -10°F |
| Roanoke | Zone 5b: -15°F to -10°F |
| Robbins | Zone 6a: -10°F to -5°F |
| Roberts | Zone 5b: -15°F to -10°F |
| Robinson | Zone 6a: -10°F to -5°F |
| Rochelle | Zone 5a: -20°F to -15°F |
| Rochester | Zone 6a: -10°F to -5°F |
| Rock City | Zone 5a: -20°F to -15°F |
| Rock Falls | Zone 5b: -15°F to -10°F |
| Rock Grove | Zone 5a: -20°F to -15°F |
| Rock Island | Zone 5b: -15°F to -10°F |
| Rock Island Arsenal | Zone 5b: -15°F to -10°F |
| Rockbridge | Zone 6a: -10°F to -5°F |
| Rockdale | Zone 5b: -15°F to -10°F |
| Rockford | Zone 5b: -15°F to -10°F |
| Rockport | Zone 6a: -10°F to -5°F |
| Rockton | Zone 5b: -15°F to -10°F |
| Rockwood | Zone 6b: -5°F to 0°F |
| Rolling Meadows | Zone 5b: -15°F to -10°F |
| Rome | Zone 5b: -15°F to -10°F |
| Romeoville | Zone 5b: -15°F to -10°F |
| Roodhouse | Zone 5b: -15°F to -10°F |
| Rooks Creek | Zone 5b: -15°F to -10°F |
| Rosamond | Zone 6a: -10°F to -5°F |
| Roscoe | Zone 5b: -15°F to -10°F |
| Rose Hill | Zone 6a: -10°F to -5°F |
| Roselle | Zone 5b: -15°F to -10°F |
| Rosemont | Zone 5b: -15°F to -10°F |
| Roseville | Zone 5b: -15°F to -10°F |
| Rosewood Heights | Zone 6a: -10°F to -5°F |
| Rosiclare | Zone 6b: -5°F to 0°F |
| Rossville | Zone 5b: -15°F to -10°F |
| Round Lake | Zone 5b: -15°F to -10°F |
| Round Lake Beach | Zone 5b: -15°F to -10°F |
| Round Lake Heights | Zone 5b: -15°F to -10°F |
| Round Lake Park | Zone 5b: -15°F to -10°F |
| Roxana | Zone 6b: -5°F to 0°F |
| Royal | Zone 5b: -15°F to -10°F |
| Royal Lakes | Zone 6a: -10°F to -5°F |
| Royalton | Zone 6b: -5°F to 0°F |
| Ruma | Zone 6b: -5°F to 0°F |
| Rushville | Zone 5b: -15°F to -10°F |
| Russell | Zone 5b: -15°F to -10°F |
| Russellville | Zone 6a: -10°F to -5°F |
| Rutland | Zone 5b: -15°F to -10°F |
| Sadorus | Zone 5b: -15°F to -10°F |
| Sailor Springs | Zone 6a: -10°F to -5°F |
| Saint Anne | Zone 5b: -15°F to -10°F |
| Saint Augustine | Zone 5b: -15°F to -10°F |
| Saint Charles | Zone 5b: -15°F to -10°F |
| Saint David | Zone 5b: -15°F to -10°F |
| Saint Elmo | Zone 6a: -10°F to -5°F |
| Saint Francisville | Zone 6a: -10°F to -5°F |
| Saint Jacob | Zone 6b: -5°F to 0°F |
| Saint Johns | Zone 6b: -5°F to 0°F |
| Saint Joseph | Zone 5b: -15°F to -10°F |
| Saint Libory | Zone 6b: -5°F to 0°F |
| Saint Peter | Zone 6a: -10°F to -5°F |
| Sainte Marie | Zone 6a: -10°F to -5°F |
| Salem | Zone 6a: -10°F to -5°F |
| Sammons Point | Zone 5b: -15°F to -10°F |
| San Jose | Zone 5b: -15°F to -10°F |
| Sandoval | Zone 6a: -10°F to -5°F |
| Sandwich | Zone 5b: -15°F to -10°F |
| Sauget | Zone 6b: -5°F to 0°F |
| Sauk Village | Zone 5b: -15°F to -10°F |
| Saunemin | Zone 5b: -15°F to -10°F |
| Savanna | Zone 5a: -20°F to -15°F |
| Savoy | Zone 5b: -15°F to -10°F |
| Sawyerville | Zone 6a: -10°F to -5°F |
| Saybrook | Zone 5b: -15°F to -10°F |
| Scales Mound | Zone 5a: -20°F to -15°F |
| Schaumburg | Zone 5b: -15°F to -10°F |
| Scheller | Zone 6b: -5°F to 0°F |
| Schiller Park | Zone 5b: -15°F to -10°F |
| Schram City | Zone 6a: -10°F to -5°F |
| Sciota | Zone 5b: -15°F to -10°F |
| Scioto Mills | Zone 5a: -20°F to -15°F |
| Scott AFB | Zone 6b: -5°F to 0°F |
| Scottville | Zone 6a: -10°F to -5°F |
| Seaton | Zone 5b: -15°F to -10°F |
| Seatonville | Zone 5b: -15°F to -10°F |
| Secor | Zone 5b: -15°F to -10°F |
| Seneca | Zone 5b: -15°F to -10°F |
| Serena | Zone 5b: -15°F to -10°F |
| Sesser | Zone 6b: -5°F to 0°F |
| Seward | Zone 5a: -20°F to -15°F |
| Seymour | Zone 5b: -15°F to -10°F |
| Shabbona | Zone 5b: -15°F to -10°F |
| Shannon | Zone 5a: -20°F to -15°F |
| Shattuc | Zone 6a: -10°F to -5°F |
| Shawneetown | Zone 6b: -5°F to 0°F |
| Sheffield | Zone 5b: -15°F to -10°F |
| Shelbyville | Zone 6a: -10°F to -5°F |
| Sheldon | Zone 5b: -15°F to -10°F |
| Sheridan | Zone 5b: -15°F to -10°F |
| Sherman | Zone 5b: -15°F to -10°F |
| Sherrard | Zone 5b: -15°F to -10°F |
| Shiloh | Zone 6b: -5°F to 0°F |
| Shipman | Zone 6a: -10°F to -5°F |
| Shirland | Zone 5b: -15°F to -10°F |
| Shirley | Zone 5b: -15°F to -10°F |
| Shobonier | Zone 6a: -10°F to -5°F |
| Shorewood | Zone 5b: -15°F to -10°F |
| Shumway | Zone 6a: -10°F to -5°F |
| Sibley | Zone 5b: -15°F to -10°F |
| Sidell | Zone 5b: -15°F to -10°F |
| Sidney | Zone 5b: -15°F to -10°F |
| Sigel | Zone 6a: -10°F to -5°F |
| Silvis | Zone 5b: -15°F to -10°F |
| Simpson | Zone 6b: -5°F to 0°F |
| Sims | Zone 6b: -5°F to 0°F |
| Skokie | Zone 5b: -15°F to -10°F |
| Sleepy Hollow | Zone 5b: -15°F to -10°F |
| Smithboro | Zone 6a: -10°F to -5°F |
| Smithfield | Zone 5b: -15°F to -10°F |
| Smithshire | Zone 5b: -15°F to -10°F |
| Smithton | Zone 6b: -5°F to 0°F |
| Solon Mills | Zone 5b: -15°F to -10°F |
| Somonauk | Zone 5b: -15°F to -10°F |
| Sorento | Zone 6a: -10°F to -5°F |
| South Barrington | Zone 5b: -15°F to -10°F |
| South Beloit | Zone 5b: -15°F to -10°F |
| South Chicago Heights | Zone 5b: -15°F to -10°F |
| South Elgin | Zone 5b: -15°F to -10°F |
| South Holland | Zone 6a: -10°F to -5°F |
| South Jacksonville | Zone 6a: -10°F to -5°F |
| South Pekin | Zone 5b: -15°F to -10°F |
| South Roxana | Zone 6b: -5°F to 0°F |
| South Wilmington | Zone 5b: -15°F to -10°F |
| Southern View | Zone 6a: -10°F to -5°F |
| Sparland | Zone 5b: -15°F to -10°F |
| Sparta | Zone 6b: -5°F to 0°F |
| Spaulding | Zone 5b: -15°F to -10°F |
| Speer | Zone 5b: -15°F to -10°F |
| Spillertown | Zone 6b: -5°F to 0°F |
| Spring Bay | Zone 5b: -15°F to -10°F |
| Spring Grove | Zone 5b: -15°F to -10°F |
| Spring Valley | Zone 5b: -15°F to -10°F |
| Springerton | Zone 6b: -5°F to 0°F |
| Springfield | Zone 5b: -15°F to -10°F |
| Standard | Zone 5b: -15°F to -10°F |
| Standard City | Zone 6a: -10°F to -5°F |
| Stanford | Zone 5b: -15°F to -10°F |
| Staunton | Zone 6a: -10°F to -5°F |
| Steeleville | Zone 6b: -5°F to 0°F |
| Steger | Zone 5b: -15°F to -10°F |
| Sterling | Zone 5b: -15°F to -10°F |
| Sterling/Rock Falls | Zone 5b: -15°F to -10°F |
| Steward | Zone 5a: -20°F to -15°F |
| Stewardson | Zone 6a: -10°F to -5°F |
| Stickney | Zone 6a: -10°F to -5°F |
| Stillman Valley | Zone 5a: -20°F to -15°F |
| Stockland | Zone 5b: -15°F to -10°F |
| Stockton | Zone 5a: -20°F to -15°F |
| Stone Park | Zone 5b: -15°F to -10°F |
| Stonefort | Zone 6b: -5°F to 0°F |
| Stonington | Zone 6a: -10°F to -5°F |
| Stoy | Zone 6a: -10°F to -5°F |
| Strasburg | Zone 6a: -10°F to -5°F |
| Strawn | Zone 5b: -15°F to -10°F |
| Streamwood | Zone 5b: -15°F to -10°F |
| Streator | Zone 5b: -15°F to -10°F |
| Stronghurst | Zone 5b: -15°F to -10°F |
| Sublette | Zone 5b: -15°F to -10°F |
| Sugar Grove | Zone 5b: -15°F to -10°F |
| Sullivan | Zone 6a: -10°F to -5°F |
| Summerfield | Zone 6b: -5°F to 0°F |
| Summit | Zone 6a: -10°F to -5°F |
| Summit Argo | Zone 6a: -10°F to -5°F |
| Sumner | Zone 6a: -10°F to -5°F |
| Sun River Terrace | Zone 5b: -15°F to -10°F |
| Sunbury | Zone 5b: -15°F to -10°F |
| Sunnyside | Zone 5b: -15°F to -10°F |
| Sutter | Zone 5b: -15°F to -10°F |
| Swansea | Zone 6b: -5°F to 0°F |
| Sycamore | Zone 5b: -15°F to -10°F |
| Symerton | Zone 5b: -15°F to -10°F |
| Table Grove | Zone 5b: -15°F to -10°F |
| Tallula | Zone 5b: -15°F to -10°F |
| Tamaroa | Zone 6b: -5°F to 0°F |
| Tamms | Zone 6b: -5°F to 0°F |
| Tampico | Zone 5b: -15°F to -10°F |
| Taylor Ridge | Zone 5b: -15°F to -10°F |
| Taylor Springs | Zone 6a: -10°F to -5°F |
| Taylorville | Zone 6a: -10°F to -5°F |
| Techny | Zone 5b: -15°F to -10°F |
| Tennessee | Zone 5b: -15°F to -10°F |
| Teutopolis | Zone 6a: -10°F to -5°F |
| Texico | Zone 6a: -10°F to -5°F |
| Thawville | Zone 5b: -15°F to -10°F |
| Thayer | Zone 6a: -10°F to -5°F |
| Thebes | Zone 6b: -5°F to 0°F |
| Third Lake | Zone 5b: -15°F to -10°F |
| Thomasboro | Zone 5b: -15°F to -10°F |
| Thompsonville | Zone 6b: -5°F to 0°F |
| Thomson | Zone 5b: -15°F to -10°F |
| Thornton | Zone 5b: -15°F to -10°F |
| Tilden | Zone 6b: -5°F to 0°F |
| Tilton | Zone 5b: -15°F to -10°F |
| Timberlane | Zone 5b: -15°F to -10°F |
| Time | Zone 6a: -10°F to -5°F |
| Timewell | Zone 5b: -15°F to -10°F |
| Tinley Park | Zone 5b: -15°F to -10°F |
| Tiskilwa | Zone 5b: -15°F to -10°F |
| Todds Point | Zone 6a: -10°F to -5°F |
| Toledo | Zone 6a: -10°F to -5°F |
| Tolono | Zone 5b: -15°F to -10°F |
| Toluca | Zone 5b: -15°F to -10°F |
| Tonica | Zone 5b: -15°F to -10°F |
| Tonti | Zone 6a: -10°F to -5°F |
| Topeka | Zone 5b: -15°F to -10°F |
| Toulon | Zone 5b: -15°F to -10°F |
| Tovey | Zone 6a: -10°F to -5°F |
| Towanda | Zone 5b: -15°F to -10°F |
| Tower Hill | Zone 6a: -10°F to -5°F |
| Tower Lake | Zone 5b: -15°F to -10°F |
| Tremont | Zone 5b: -15°F to -10°F |
| Trenton | Zone 6b: -5°F to 0°F |
| Trilla | Zone 6a: -10°F to -5°F |
| Triumph | Zone 5b: -15°F to -10°F |
| Trivoli | Zone 5b: -15°F to -10°F |
| Trout Valley | Zone 5b: -15°F to -10°F |
| Troy | Zone 6a: -10°F to -5°F |
| Troy Grove | Zone 5b: -15°F to -10°F |
| Tunnel Hill | Zone 6b: -5°F to 0°F |
| Tuscola | Zone 5b: -15°F to -10°F |
| Twin Grove | Zone 5b: -15°F to -10°F |
| Ullin | Zone 7a: 0°F to 5°F |
| Union | Zone 5b: -15°F to -10°F |
| Union Grove | Zone 5a: -20°F to -15°F |
| Union Hill | Zone 5b: -15°F to -10°F |
| Unity | Zone 6b: -5°F to 0°F |
| University Park | Zone 5b: -15°F to -10°F |
| Upper Alton | Zone 6a: -10°F to -5°F |
| Urbana | Zone 5b: -15°F to -10°F |
| Ursa | Zone 6a: -10°F to -5°F |
| Ustick | Zone 5a: -20°F to -15°F |
| Utica | Zone 5b: -15°F to -10°F |
| Valier | Zone 6b: -5°F to 0°F |
| Valley City | Zone 6a: -10°F to -5°F |
| Valmeyer | Zone 6b: -5°F to 0°F |
| Van Orin | Zone 5b: -15°F to -10°F |
| Vandalia | Zone 6a: -10°F to -5°F |
| Varna | Zone 5b: -15°F to -10°F |
| Venedy | Zone 6b: -5°F to 0°F |
| Venetian Village | Zone 5b: -15°F to -10°F |
| Venice | Zone 6b: -5°F to 0°F |
| Vergennes | Zone 6b: -5°F to 0°F |
| Vermilion | Zone 6a: -10°F to -5°F |
| Vermont | Zone 5b: -15°F to -10°F |
| Vernon | Zone 6a: -10°F to -5°F |
| Vernon Hills | Zone 5b: -15°F to -10°F |
| Verona | Zone 5b: -15°F to -10°F |
| Versailles | Zone 5b: -15°F to -10°F |
| Victoria | Zone 5b: -15°F to -10°F |
| Vienna | Zone 6b: -5°F to 0°F |
| Villa Grove | Zone 6a: -10°F to -5°F |
| Villa Park | Zone 5b: -15°F to -10°F |
| Villa Ridge | Zone 7a: 0°F to 5°F |
| Village of Campton Hills | Zone 5b: -15°F to -10°F |
| Viola | Zone 5b: -15°F to -10°F |
| Virden | Zone 6a: -10°F to -5°F |
| Virgil | Zone 5b: -15°F to -10°F |
| Virginia | Zone 5b: -15°F to -10°F |
| Volo | Zone 5b: -15°F to -10°F |
| Wadsworth | Zone 5b: -15°F to -10°F |
| Waggoner | Zone 6a: -10°F to -5°F |
| Waldo | Zone 5b: -15°F to -10°F |
| Walnut | Zone 5b: -15°F to -10°F |
| Walnut Hill | Zone 6a: -10°F to -5°F |
| Walsh | Zone 6b: -5°F to 0°F |
| Walshville | Zone 6a: -10°F to -5°F |
| Waltonville | Zone 6b: -5°F to 0°F |
| Wamac | Zone 6a: -10°F to -5°F |
| Wapella | Zone 5b: -15°F to -10°F |
| Warren | Zone 5a: -20°F to -15°F |
| Warrensburg | Zone 5b: -15°F to -10°F |
| Warrenville | Zone 5b: -15°F to -10°F |
| Warsaw | Zone 6a: -10°F to -5°F |
| Wasco | Zone 5b: -15°F to -10°F |
| Washburn | Zone 5b: -15°F to -10°F |
| Washington | Zone 5b: -15°F to -10°F |
| Washington Park | Zone 6b: -5°F to 0°F |
| Wataga | Zone 5b: -15°F to -10°F |
| Waterloo | Zone 6b: -5°F to 0°F |
| Waterman | Zone 5b: -15°F to -10°F |
| Watseka | Zone 5b: -15°F to -10°F |
| Watson | Zone 6a: -10°F to -5°F |
| Wauconda | Zone 5b: -15°F to -10°F |
| Waukegan | Zone 5b: -15°F to -10°F |
| Waverly | Zone 6a: -10°F to -5°F |
| Wayne | Zone 5b: -15°F to -10°F |
| Wayne City | Zone 6b: -5°F to 0°F |
| Waynesville | Zone 5b: -15°F to -10°F |
| Wedron | Zone 5b: -15°F to -10°F |
| Weldon | Zone 5b: -15°F to -10°F |
| Wellington | Zone 5b: -15°F to -10°F |
| Wenona | Zone 5b: -15°F to -10°F |
| Wenonah | Zone 6a: -10°F to -5°F |
| West Brooklyn | Zone 5a: -20°F to -15°F |
| West Chicago | Zone 5b: -15°F to -10°F |
| West City | Zone 6b: -5°F to 0°F |
| West Dundee | Zone 5b: -15°F to -10°F |
| West Frankfort | Zone 6b: -5°F to 0°F |
| West Jersey | Zone 5b: -15°F to -10°F |
| West Liberty | Zone 6a: -10°F to -5°F |
| West Peoria | Zone 5b: -15°F to -10°F |
| West Point | Zone 5b: -15°F to -10°F |
| West Salem | Zone 6a: -10°F to -5°F |
| West Union | Zone 6a: -10°F to -5°F |
| West York | Zone 6a: -10°F to -5°F |
| Westchester | Zone 5b: -15°F to -10°F |
| Western Springs | Zone 5b: -15°F to -10°F |
| Westervelt | Zone 6a: -10°F to -5°F |
| Westfield | Zone 6a: -10°F to -5°F |
| Westmont | Zone 5b: -15°F to -10°F |
| Westville | Zone 5b: -15°F to -10°F |
| Wheaton | Zone 5b: -15°F to -10°F |
| Wheeler | Zone 6a: -10°F to -5°F |
| Wheeling | Zone 5b: -15°F to -10°F |
| White Ash | Zone 6b: -5°F to 0°F |
| White City | Zone 6a: -10°F to -5°F |
| White Hall | Zone 6a: -10°F to -5°F |
| White Heath | Zone 5b: -15°F to -10°F |
| White Rock | Zone 5a: -20°F to -15°F |
| Whittington | Zone 6b: -5°F to 0°F |
| Williamsfield | Zone 5b: -15°F to -10°F |
| Williamson | Zone 6a: -10°F to -5°F |
| Williamsville | Zone 5b: -15°F to -10°F |
| Willisville | Zone 6b: -5°F to 0°F |
| Willow Hill | Zone 6a: -10°F to -5°F |
| Willow Springs | Zone 5b: -15°F to -10°F |
| Willowbrook | Zone 5b: -15°F to -10°F |
| Wilmette | Zone 5b: -15°F to -10°F |
| Wilmington | Zone 5b: -15°F to -10°F |
| Wilsonville | Zone 6a: -10°F to -5°F |
| Wilton | Zone 5b: -15°F to -10°F |
| Winchester | Zone 6a: -10°F to -5°F |
| Windsor | Zone 6a: -10°F to -5°F |
| Winfield | Zone 5b: -15°F to -10°F |
| Winnebago | Zone 5a: -20°F to -15°F |
| Winnetka | Zone 5b: -15°F to -10°F |
| Winslow | Zone 5a: -20°F to -15°F |
| Winthrop Harbor | Zone 5b: -15°F to -10°F |
| Witt | Zone 6a: -10°F to -5°F |
| Wolf Lake | Zone 6b: -5°F to 0°F |
| Wonder Lake | Zone 5b: -15°F to -10°F |
| Wood Dale | Zone 5b: -15°F to -10°F |
| Wood River | Zone 6b: -5°F to 0°F |
| Woodhull | Zone 5b: -15°F to -10°F |
| Woodland | Zone 5b: -15°F to -10°F |
| Woodlawn | Zone 6a: -10°F to -5°F |
| Woodridge | Zone 5b: -15°F to -10°F |
| Woodside | Zone 6a: -10°F to -5°F |
| Woodson | Zone 6a: -10°F to -5°F |
| Woodstock | Zone 5b: -15°F to -10°F |
| Woosung | Zone 5a: -20°F to -15°F |
| Worden | Zone 6a: -10°F to -5°F |
| Worth | Zone 5b: -15°F to -10°F |
| Wrights | Zone 6a: -10°F to -5°F |
| Wyanet | Zone 5b: -15°F to -10°F |
| Wyoming | Zone 5b: -15°F to -10°F |
| Xenia | Zone 6a: -10°F to -5°F |
| Yale | Zone 6a: -10°F to -5°F |
| Yates City | Zone 5b: -15°F to -10°F |
| York Center | Zone 5b: -15°F to -10°F |
| Yorkville | Zone 5b: -15°F to -10°F |
| Zanesville | Zone 6a: -10°F to -5°F |
| Zeigler | Zone 6b: -5°F to 0°F |
| Zion | Zone 5b: -15°F to -10°F |