Holcomb Illinois Climate Data

Monthly Average Climate Data for Holcomb Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.5 °F28.6 °F1.66 in.
February16.0 °F32.8 °F1.68 in.
March26.3 °F45.2 °F2.22 in.
April36.8 °F59.0 °F3.65 in.
May48.6 °F70.4 °F4.64 in.
June58.5 °F79.6 °F5.22 in.
July62.0 °F82.6 °F4.08 in.
August60.0 °F81.0 °F4.04 in.
September51.6 °F75.0 °F3.46 in.
October40.0 °F62.1 °F2.85 in.
November29.2 °F47.0 °F2.3 in.
December18.7 °F34.1 °F1.91 in.
Annual38.4 °F58.1 °F37.71 in.

Climate Data for Holcomb Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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