Nilwood Illinois Climate Data

Monthly Average Climate Data for Nilwood Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.6 °C2.1 °C58.17 mm
February-4.7 °C5.1 °C52.58 mm
March0.4 °C11.3 °C72.14 mm
April6.2 °C18.4 °C114.3 mm
May12.4 °C23.8 °C123.7 mm
June17.4 °C28.4 °C113.28 mm
July19.2 °C30.1 °C89.41 mm
August18 °C29.5 °C84.84 mm
September13.4 °C26.5 °C83.31 mm
October7.1 °C19.7 °C85.6 mm
November1.3 °C11.4 °C81.53 mm
December-3.7 °C4.9 °C58.17 mm
Annual6.7 °C17.6 °C1017.03 mm

Climate Data for Nilwood Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
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 ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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