Chadwick Illinois Climate Data

Monthly Average Climate Data for Chadwick Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.9 °F29.2 °F1.61 in.
February15.6 °F33.7 °F1.77 in.
March26.1 °F46.0 °F2.33 in.
April36.7 °F59.9 °F3.79 in.
May48.4 °F71.5 °F4.6 in.
June58.4 °F80.8 °F5.23 in.
July61.7 °F83.7 °F4.71 in.
August59.4 °F82.2 °F4.02 in.
September50.9 °F76.0 °F3.65 in.
October39.5 °F63.1 °F2.82 in.
November28.5 °F47.4 °F2.26 in.
December18.2 °F34.6 °F1.95 in.
Annual37.9 °F59 °F38.74 in.

Climate Data for Chadwick Illinois

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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