Winter Wisconsin Climate Data

Monthly Average Climate Data for Winter Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January1.4 °F21.3 °F1.08 in.
February3.8 °F26.7 °F1.0 in.
March15.7 °F38.5 °F1.6 in.
April29.1 °F51.9 °F2.76 in.
May41.3 °F65.5 °F3.84 in.
June51.2 °F74.6 °F4.59 in.
July55.7 °F78.5 °F4.36 in.
August53.2 °F76.4 °F3.65 in.
September45.9 °F68.9 °F4.09 in.
October34.3 °F54.7 °F3.48 in.
November22.3 °F38.9 °F1.75 in.
December9.6 °F26.3 °F1.37 in.
Annual30.3 °F51.9 °F33.57 in.

Climate Data for Winter Wisconsin

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateMay 21 - May 31
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4a : -30°F to -25°F
Plant Hardiness Zone - 2012Zone 3b : -35°F to -30°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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