Crest Hill Illinois Climate Data

Monthly Average Climate Data for Crest Hill Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.3 °F31.6 °F2.11 in.
February19.0 °F35.6 °F1.95 in.
March28.6 °F47.4 °F2.5 in.
April39.0 °F60.5 °F3.93 in.
May49.9 °F71.4 °F4.82 in.
June59.9 °F80.8 °F4.7 in.
July63.9 °F84.4 °F4.32 in.
August62.5 °F82.6 °F4.21 in.
September54.9 °F76.9 °F3.37 in.
October42.7 °F63.7 °F3.39 in.
November31.8 °F49.2 °F2.46 in.
December22.0 °F36.8 °F2.17 in.
Annual40.9 °F60.1 °F39.93 in.

Climate Data for Crest Hill Illinois

Average First Frost DateOct. 11 - Oct. 20
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