Wheeling Illinois Climate Data

Monthly Average Climate Data for Wheeling Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.6 °C-0.4 °C52.07 mm
February-7.1 °C1.6 °C50.29 mm
March-2 °C7.4 °C57.66 mm
April3.7 °C14.1 °C96.27 mm
May9.7 °C20.4 °C112.52 mm
June15.3 °C26.1 °C111.51 mm
July18.3 °C28.6 °C93.73 mm
August17.6 °C27.5 °C100.33 mm
September13.2 °C23.9 °C83.57 mm
October6.5 °C16.8 °C83.06 mm
November0.2 °C8.9 °C60.96 mm
December-5.3 °C2.5 °C53.59 mm
Annual5.1 °C14.8 °C955.56 mm

Climate Data for Wheeling Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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