Stone Park Illinois Climate Data

Monthly Average Climate Data for Stone Park Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.0 °F31.6 °F2.14 in.
February19.7 °F35.4 °F2.12 in.
March29.0 °F46.2 °F2.32 in.
April39.2 °F58.6 °F3.93 in.
May50.1 °F69.9 °F4.68 in.
June60.2 °F80.0 °F4.41 in.
July65.6 °F84.3 °F3.77 in.
August64.1 °F82.4 °F4.06 in.
September56.2 °F75.8 °F3.32 in.
October44.0 °F62.8 °F3.42 in.
November32.6 °F48.7 °F2.56 in.
December22.8 °F37.0 °F2.27 in.
Annual41.7 °F59.4 °F39 in.

Climate Data for Stone Park 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 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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