Crestwood Illinois Climate Data

Monthly Average Climate Data for Crestwood Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.6 °F32.0 °F2.17 in.
February20.4 °F35.7 °F2.08 in.
March29.7 °F46.6 °F2.39 in.
April39.9 °F59.6 °F3.95 in.
May50.8 °F70.7 °F4.67 in.
June60.9 °F80.6 °F4.3 in.
July65.8 °F84.9 °F4.36 in.
August64.1 °F82.9 °F4.19 in.
September56.6 °F76.7 °F3.25 in.
October44.4 °F63.6 °F3.48 in.
November33.4 °F49.2 °F2.61 in.
December23.4 °F37.3 °F2.31 in.
Annual42.3 °F60 °F39.76 in.

Climate Data for Crestwood 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 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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