Walnut Hill Illinois Climate Data

Monthly Average Climate Data for Walnut Hill Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5.4 °C3.7 °C76.2 mm
February-3.6 °C6.4 °C67.82 mm
March1.2 °C12.2 °C95.5 mm
April6.9 °C18.8 °C123.7 mm
May12.9 °C24 °C130.05 mm
June17.7 °C29.1 °C118.87 mm
July19.6 °C30.7 °C102.87 mm
August18.2 °C30.3 °C87.38 mm
September13.7 °C26.9 °C86.11 mm
October7.3 °C20.6 °C86.11 mm
November1.7 °C12.4 °C99.06 mm
December-2.9 °C6.1 °C76.45 mm
Annual7.3 °C18.4 °C1150.12 mm

Climate Data for Walnut Hill Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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