Columbus Illinois Climate Data

Monthly Average Climate Data for Columbus Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.1 °F34.5 °F1.86 in.
February21.7 °F39.4 °F1.98 in.
March31.2 °F51.1 °F2.56 in.
April42.2 °F63.3 °F4.04 in.
May53.5 °F73.3 °F4.91 in.
June62.9 °F82.3 °F4.62 in.
July66.3 °F86.1 °F3.87 in.
August64.1 °F84.6 °F3.81 in.
September55.5 °F78.4 °F3.36 in.
October44.1 °F65.9 °F3.2 in.
November33.1 °F51.7 °F2.68 in.
December23.4 °F39.3 °F2.05 in.
Annual43 °F62.5 °F38.94 in.

Climate Data for Columbus Illinois

Average First Frost DateOct. 21 - Oct. 31
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 6a : -10°F to -5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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