Willisville Illinois Climate Data

Monthly Average Climate Data for Willisville Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.6 °C4.8 °C72.39 mm
February-2.7 °C7.7 °C67.31 mm
March1.8 °C13.2 °C100.08 mm
April7.5 °C19.6 °C128.27 mm
May13.3 °C24.7 °C129.79 mm
June18.2 °C29.5 °C115.06 mm
July20.2 °C31.1 °C99.31 mm
August18.8 °C30.6 °C75.44 mm
September14.2 °C27.2 °C85.85 mm
October7.9 °C21.1 °C82.3 mm
November2.3 °C13.3 °C99.57 mm
December-2.4 °C7.1 °C78.49 mm
Annual7.9 °C19.2 °C1133.86 mm

Climate Data for Willisville Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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