Hardin Illinois Climate Data

Monthly Average Climate Data for Hardin Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.0 °F38.3 °F2.55 in.
February24.2 °F43.6 °F2.48 in.
March33.2 °F54.5 °F3.32 in.
April43.8 °F66.6 °F4.46 in.
May55.0 °F75.7 °F5.04 in.
June64.0 °F84.3 °F4.48 in.
July67.4 °F87.6 °F3.97 in.
August65.4 °F86.7 °F3.46 in.
September56.7 °F80.2 °F3.45 in.
October45.4 °F68.4 °F3.22 in.
November34.6 °F54.4 °F3.48 in.
December25.6 °F42.8 °F2.68 in.
Annual44.7 °F65.3 °F42.59 in.

Climate Data for Hardin 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 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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