Preston Heights Illinois Climate Data

Monthly Average Climate Data for Preston Heights Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.1 °F31.7 °F2.07 in.
February18.9 °F35.7 °F1.93 in.
March28.5 °F47.6 °F2.39 in.
April39.0 °F60.7 °F3.87 in.
May49.9 °F71.5 °F4.74 in.
June59.9 °F81.1 °F4.59 in.
July63.9 °F84.6 °F4.36 in.
August62.4 °F82.9 °F4.08 in.
September54.7 °F77.1 °F3.39 in.
October42.5 °F63.9 °F3.27 in.
November31.9 °F49.3 °F2.46 in.
December21.9 °F36.9 °F2.11 in.
Annual40.8 °F60.3 °F39.26 in.

Climate Data for Preston Heights 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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