Average First Frost Dates for Illinois

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First Frost Dates were calculated using daily climate data from the period between 1991-2020.

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List of Average First Frost Dates for Locations in Illinois

LocationAverage First Frost Dates
AddisonOct. 11 - Oct. 20
AlgonquinOct. 11 - Oct. 20
AlsipOct. 21 - Oct. 31
AltonNov. 1 - Nov. 10
Arlington HeightsOct. 11 - Oct. 20
AuroraOct. 11 - Oct. 20
BartlettOct. 11 - Oct. 20
BataviaOct. 11 - Oct. 20
BellevilleOct. 21 - Oct. 31
BellwoodOct. 21 - Oct. 31
BelvidereOct. 11 - Oct. 20
BensenvilleOct. 11 - Oct. 20
BerwynOct. 21 - Oct. 31
BloomingdaleOct. 11 - Oct. 20
BloomingtonOct. 11 - Oct. 20
Blue IslandOct. 21 - Oct. 31
BolingbrookOct. 11 - Oct. 20
BourbonnaisOct. 11 - Oct. 20
BradleyOct. 11 - Oct. 20
BridgeviewOct. 21 - Oct. 31
BrookfieldOct. 21 - Oct. 31
BurbankOct. 21 - Oct. 31
Calumet CityOct. 21 - Oct. 31
CarbondaleOct. 11 - Oct. 20
Carol StreamOct. 11 - Oct. 20
CarpentersvilleOct. 11 - Oct. 20
CaryOct. 11 - Oct. 20
ChampaignOct. 11 - Oct. 20
CharlestonOct. 11 - Oct. 20
ChicagoOct. 21 - Oct. 31
Chicago HeightsOct. 11 - Oct. 20
CiceroOct. 21 - Oct. 31
CollinsvilleNov. 1 - Nov. 10
Country Club HillsOct. 21 - Oct. 31
Crest HillOct. 11 - Oct. 20
Crystal LakeOct. 11 - Oct. 20
DanvilleOct. 11 - Oct. 20
DarienOct. 21 - Oct. 31
DarienOct. 21 - Oct. 31
DecaturOct. 11 - Oct. 20
DeerfieldOct. 21 - Oct. 31
DeKalbOct. 11 - Oct. 20
Des PlainesOct. 21 - Oct. 31
DixonOct. 11 - Oct. 20
DoltonOct. 21 - Oct. 31
Downers GroveOct. 21 - Oct. 31
East MolineOct. 11 - Oct. 20
East PeoriaOct. 11 - Oct. 20
EdwardsvilleNov. 1 - Nov. 10
ElginOct. 11 - Oct. 20
Elk Grove VillageOct. 11 - Oct. 20
ElmhurstOct. 21 - Oct. 31
Elmwood ParkOct. 21 - Oct. 31
EvanstonOct. 21 - Oct. 31
Evergreen ParkOct. 21 - Oct. 31
Fairview HeightsOct. 21 - Oct. 31
FrankfortOct. 21 - Oct. 31
Franklin ParkOct. 21 - Oct. 31
FreeportOct. 11 - Oct. 20
GalesburgOct. 11 - Oct. 20
GenevaOct. 11 - Oct. 20
Glen EllynOct. 11 - Oct. 20
Glendale HeightsOct. 11 - Oct. 20
GlenviewOct. 21 - Oct. 31
GodfreyNov. 1 - Nov. 10
Granite CityNov. 1 - Nov. 10
GrayslakeOct. 11 - Oct. 20
GurneeOct. 21 - Oct. 31
Hanover ParkOct. 11 - Oct. 20
HarveyOct. 21 - Oct. 31
Highland ParkOct. 21 - Oct. 31
HinsdaleOct. 21 - Oct. 31
Hoffman EstatesOct. 11 - Oct. 20
Homer GlenOct. 21 - Oct. 31
HomewoodOct. 11 - Oct. 20
HuntleyOct. 11 - Oct. 20
JacksonvilleOct. 11 - Oct. 20
JolietOct. 11 - Oct. 20
KankakeeOct. 11 - Oct. 20
La GrangeOct. 21 - Oct. 31
Lake ForestOct. 21 - Oct. 31
Lake in the HillsOct. 11 - Oct. 20
Lake ZurichOct. 11 - Oct. 20
LansingOct. 21 - Oct. 31
LemontOct. 21 - Oct. 31
LibertyvilleOct. 11 - Oct. 20
LisleOct. 11 - Oct. 20
LockportOct. 11 - Oct. 20
LombardOct. 11 - Oct. 20
Loves ParkOct. 11 - Oct. 20
Machesney ParkOct. 11 - Oct. 20
MacombOct. 11 - Oct. 20
MarionOct. 11 - Oct. 20
MattesonOct. 11 - Oct. 20
MattoonOct. 21 - Oct. 31
MaywoodOct. 21 - Oct. 31
McHenryOct. 11 - Oct. 20
Melrose ParkOct. 21 - Oct. 31
MokenaOct. 21 - Oct. 31
MolineOct. 21 - Oct. 31
MontgomeryOct. 11 - Oct. 20
MortonOct. 11 - Oct. 20
Morton GroveOct. 21 - Oct. 31
Mount ProspectOct. 21 - Oct. 31
MundeleinOct. 11 - Oct. 20
NapervilleOct. 11 - Oct. 20
New LenoxOct. 11 - Oct. 20
NilesOct. 21 - Oct. 31
NormalOct. 11 - Oct. 20
NorridgeOct. 21 - Oct. 31
North AuroraOct. 11 - Oct. 20
North ChicagoOct. 21 - Oct. 31
NorthbrookOct. 21 - Oct. 31
O'FallonOct. 21 - Oct. 31
Oak ForestOct. 21 - Oct. 31
Oak LawnOct. 21 - Oct. 31
Oak ParkOct. 21 - Oct. 31
Orland ParkOct. 21 - Oct. 31
OswegoOct. 11 - Oct. 20
OttawaOct. 11 - Oct. 20
PalatineOct. 11 - Oct. 20
Palos HillsOct. 21 - Oct. 31
Park ForestOct. 11 - Oct. 20
Park RidgeOct. 21 - Oct. 31
PekinOct. 11 - Oct. 20
PeoriaOct. 11 - Oct. 20
PlainfieldOct. 11 - Oct. 20
Prospect HeightsOct. 21 - Oct. 31
QuincyOct. 21 - Oct. 31
Rock IslandOct. 21 - Oct. 31
RockfordOct. 11 - Oct. 20
Rolling MeadowsOct. 11 - Oct. 20
RomeovilleOct. 11 - Oct. 20
RoselleOct. 11 - Oct. 20
Round LakeOct. 11 - Oct. 20
Round Lake BeachOct. 11 - Oct. 20
SchaumburgOct. 11 - Oct. 20
ShorewoodOct. 11 - Oct. 20
SkokieOct. 21 - Oct. 31
South ElginOct. 11 - Oct. 20
South HollandOct. 21 - Oct. 31
SpringfieldOct. 11 - Oct. 20
StreamwoodOct. 11 - Oct. 20
SycamoreOct. 11 - Oct. 20
Tinley ParkOct. 21 - Oct. 31
UrbanaOct. 11 - Oct. 20
Vernon HillsOct. 11 - Oct. 20
Villa ParkOct. 21 - Oct. 31
WashingtonOct. 11 - Oct. 20
WaukeganOct. 21 - Oct. 31
West ChicagoOct. 11 - Oct. 20
WestchesterOct. 21 - Oct. 31
WestmontOct. 21 - Oct. 31
WheatonOct. 11 - Oct. 20
WheelingOct. 21 - Oct. 31
WilmetteOct. 21 - Oct. 31
WoodridgeOct. 11 - Oct. 20
WoodstockOct. 11 - Oct. 20
YorkvilleOct. 11 - Oct. 20
ZionOct. 21 - Oct. 31

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