Berkeley Illinois Climate Data

Monthly Average Climate Data for Berkeley Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.0 °F31.7 °F2.15 in.
February19.6 °F35.5 °F2.15 in.
March28.9 °F46.3 °F2.33 in.
April39.3 °F58.7 °F3.94 in.
May50.1 °F70.0 °F4.7 in.
June60.2 °F80.1 °F4.43 in.
July65.4 °F84.4 °F3.82 in.
August63.9 °F82.5 °F4.13 in.
September56.0 °F75.9 °F3.35 in.
October43.8 °F62.9 °F3.45 in.
November32.5 °F48.8 °F2.57 in.
December22.7 °F36.9 °F2.29 in.
Annual41.6 °F59.5 °F39.31 in.

Climate Data for Berkeley Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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