Adeline Illinois Climate Data

Monthly Average Climate Data for Adeline Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.2 °F28.7 °F1.65 in.
February15.8 °F33.0 °F1.75 in.
March26.3 °F45.4 °F2.22 in.
April36.8 °F59.1 °F3.7 in.
May48.7 °F70.6 °F4.63 in.
June58.7 °F79.8 °F5.06 in.
July61.9 °F82.6 °F4.59 in.
August59.8 °F81.2 °F3.85 in.
September51.3 °F75.1 °F3.74 in.
October39.9 °F62.2 °F2.78 in.
November28.9 °F46.9 °F2.29 in.
December18.6 °F34.1 °F1.98 in.
Annual38.2 °F58.2 °F38.24 in.

Climate Data for Adeline 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 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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