Richton Park Illinois Climate Data

Monthly Average Climate Data for Richton Park Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.6 °F31.7 °F2.28 in.
February19.4 °F35.6 °F2.1 in.
March28.7 °F46.7 °F2.4 in.
April39.3 °F59.5 °F3.9 in.
May50.0 °F70.3 °F4.55 in.
June59.8 °F80.2 °F4.72 in.
July64.6 °F84.1 °F4.55 in.
August62.9 °F82.3 °F4.17 in.
September55.3 °F75.8 °F3.29 in.
October43.1 °F62.9 °F3.51 in.
November32.5 °F48.9 °F2.77 in.
December22.2 °F36.7 °F2.29 in.
Annual41.2 °F59.6 °F40.53 in.

Climate Data for Richton Park Illinois

Average First Frost DateOct. 11 - Oct. 20
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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