Warrenville Illinois Climate Data

Monthly Average Climate Data for Warrenville Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.3 °F31.1 °F2.05 in.
February18.0 °F35.1 °F2.0 in.
March27.6 °F46.9 °F2.37 in.
April38.0 °F59.9 °F3.9 in.
May49.0 °F71.1 °F4.91 in.
June59.0 °F80.8 °F4.53 in.
July63.6 °F84.5 °F3.87 in.
August61.8 °F82.7 °F4.05 in.
September54.0 °F76.5 °F3.3 in.
October41.8 °F63.4 °F3.56 in.
November30.9 °F48.6 °F2.58 in.
December21.2 °F36.4 °F2.22 in.
Annual40 °F59.8 °F39.34 in.

Climate Data for Warrenville Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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