Hebron Illinois Climate Data

Monthly Average Climate Data for Hebron Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.3 °F29.0 °F1.77 in.
February16.0 °F32.9 °F1.83 in.
March25.4 °F44.6 °F2.19 in.
April35.8 °F57.3 °F3.76 in.
May47.6 °F69.0 °F4.43 in.
June57.0 °F78.6 °F5.04 in.
July61.3 °F82.3 °F3.76 in.
August59.5 °F80.8 °F3.9 in.
September51.8 °F74.3 °F3.59 in.
October40.4 °F61.1 °F2.99 in.
November29.7 °F46.7 °F2.41 in.
December19.2 °F34.0 °F2.01 in.
Annual38.1 °F57.6 °F37.68 in.

Climate Data for Hebron Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°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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