Aledo Illinois Climate Data

Monthly Average Climate Data for Aledo Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.2 °F30.5 °F1.53 in.
February17.7 °F35.0 °F1.82 in.
March28.3 °F48.3 °F2.48 in.
April39.3 °F61.4 °F3.83 in.
May51.2 °F72.1 °F4.98 in.
June61.0 °F81.1 °F4.64 in.
July64.6 °F84.3 °F4.04 in.
August62.3 °F82.3 °F3.88 in.
September54.1 °F76.3 °F3.69 in.
October42.3 °F63.5 °F2.84 in.
November30.5 °F48.7 °F2.33 in.
December20.3 °F36.0 °F1.98 in.
Annual40.5 °F60 °F38.04 in.

Climate Data for Aledo Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
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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