Keithsburg Illinois Climate Data

Monthly Average Climate Data for Keithsburg Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.5 °F31.7 °F1.49 in.
February18.9 °F36.0 °F1.76 in.
March29.8 °F48.7 °F2.47 in.
April40.8 °F62.0 °F3.59 in.
May52.5 °F72.7 °F4.71 in.
June62.3 °F82.3 °F4.74 in.
July65.8 °F85.8 °F3.77 in.
August63.5 °F83.9 °F3.92 in.
September55.3 °F77.5 °F3.47 in.
October43.5 °F64.5 °F2.77 in.
November31.9 °F49.9 °F2.21 in.
December21.5 °F36.8 °F1.87 in.
Annual41.8 °F61 °F36.77 in.

Climate Data for Keithsburg Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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