Wisconsin Plant Hardiness Zones

Hardiness Zones, also referred to as Growing Zones or Planting zones are defined by the U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS). The zones in this map were created in 2023 using mean extreme climate data covering the period of 1991 to 2020. The previous version of this map released in 2012 was created using climate data from the period of 1976-2005. The data in the 2012 maps covered a cooler period than the 2023 maps.

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Wisconsin Hardiness Zones Map - 2023

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List of Hardiness Zones for Locations in Wisconsin

Location2023 Hardiness Zone2012 Hardiness Zone1990 Hardiness Zone
Appleton5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Ashwaubenon5b - -15°F to -10°F 5a - -20°F to -15°F4b - -25°F to -20°F
Beaver Dam5a - -20°F to -15°F 5a - -20°F to -15°F5a - -20°F to -15°F
Bellevue5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Beloit5b - -15°F to -10°F 5b - -15°F to -10°F5a - -20°F to -15°F
Brookfield5b - -15°F to -10°F 5b - -15°F to -10°F5b - -15°F to -10°F
Caledonia5b - -15°F to -10°F 5b - -15°F to -10°F5b - -15°F to -10°F
Cudahy6a - -10°F to -5°F 5b - -15°F to -10°F5b - -15°F to -10°F
De Pere5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Eau Claire4b - -25°F to -20°F 4b - -25°F to -20°F4a - -30°F to -25°F
Fitchburg5b - -15°F to -10°F 5a - -20°F to -15°F4b - -25°F to -20°F
Fond du Lac5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Fox Crossing5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Franklin5b - -15°F to -10°F 5b - -15°F to -10°F5b - -15°F to -10°F
Genesee5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Germantown5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Green Bay5b - -15°F to -10°F 5a - -20°F to -15°F4b - -25°F to -20°F
Greenfield5b - -15°F to -10°F 5b - -15°F to -10°F5b - -15°F to -10°F
Greenville5b - -15°F to -10°F 5a - -20°F to -15°F4b - -25°F to -20°F
Hartford5a - -20°F to -15°F 5a - -20°F to -15°F4b - -25°F to -20°F
Howard5b - -15°F to -10°F 5a - -20°F to -15°F4b - -25°F to -20°F
Janesville5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Kaukauna5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Kenosha6a - -10°F to -5°F 5b - -15°F to -10°F5a - -20°F to -15°F
La Crosse5a - -20°F to -15°F 4b - -25°F to -20°F4b - -25°F to -20°F
Little Suamico5b - -15°F to -10°F 5a - -20°F to -15°F4b - -25°F to -20°F
Madison5a - -20°F to -15°F 5a - -20°F to -15°F5a - -20°F to -15°F
Manitowoc5b - -15°F to -10°F 5b - -15°F to -10°F5a - -20°F to -15°F
Marshfield4b - -25°F to -20°F 4b - -25°F to -20°F4a - -30°F to -25°F
Menasha5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Menomonee Falls5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Middleton5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Milwaukee6a - -10°F to -5°F 5b - -15°F to -10°F5b - -15°F to -10°F
Mount Pleasant5b - -15°F to -10°F 5b - -15°F to -10°F5a - -20°F to -15°F
Muskego5b - -15°F to -10°F 5b - -15°F to -10°F5a - -20°F to -15°F
Neenah5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
New Berlin5b - -15°F to -10°F 5b - -15°F to -10°F5b - -15°F to -10°F
Oak Creek6a - -10°F to -5°F 5b - -15°F to -10°F5b - -15°F to -10°F
Oconomowoc5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Onalaska5a - -20°F to -15°F 4b - -25°F to -20°F4b - -25°F to -20°F
Oshkosh5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Pleasant Prairie5b - -15°F to -10°F 5b - -15°F to -10°F5a - -20°F to -15°F
Racine6a - -10°F to -5°F 5b - -15°F to -10°F5b - -15°F to -10°F
River Falls4b - -25°F to -20°F 4b - -25°F to -20°F4a - -30°F to -25°F
Sheboygan6a - -10°F to -5°F 5b - -15°F to -10°F5b - -15°F to -10°F
South Milwaukee6a - -10°F to -5°F 5b - -15°F to -10°F5b - -15°F to -10°F
Stevens Point5a - -20°F to -15°F 4b - -25°F to -20°F4b - -25°F to -20°F
Sun Prairie5a - -20°F to -15°F 5a - -20°F to -15°F4b - -25°F to -20°F
Superior5a - -20°F to -15°F 4b - -25°F to -20°F4b - -25°F to -20°F
Vernon5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Watertown5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Waukesha5b - -15°F to -10°F 5b - -15°F to -10°F5a - -20°F to -15°F
Wausau5a - -20°F to -15°F 4b - -25°F to -20°F4a - -30°F to -25°F
Wauwatosa6a - -10°F to -5°F 5b - -15°F to -10°F5b - -15°F to -10°F
West Allis5b - -15°F to -10°F 5b - -15°F to -10°F5b - -15°F to -10°F
West Bend5b - -15°F to -10°F 5a - -20°F to -15°F5a - -20°F to -15°F
Weston5a - -20°F to -15°F 4b - -25°F to -20°F4a - -30°F to -25°F
Wisconsin Rapids4b - -25°F to -20°F 4b - -25°F to -20°F4a - -30°F to -25°F

Hardiness Zone Maps for Neighboring States

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