Tiskilwa Illinois Climate Data

Monthly Average Climate Data for Tiskilwa Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.3 °F31.3 °F1.87 in.
February18.8 °F35.8 °F1.83 in.
March28.7 °F48.4 °F2.37 in.
April39.4 °F61.7 °F3.78 in.
May50.8 °F72.8 °F4.87 in.
June60.6 °F81.6 °F4.56 in.
July64.1 °F84.7 °F3.81 in.
August62.0 °F83.1 °F3.83 in.
September53.7 °F77.5 °F3.6 in.
October42.3 °F64.9 °F2.9 in.
November31.2 °F49.6 °F2.49 in.
December21.3 °F36.8 °F1.95 in.
Annual40.7 °F60.7 °F37.86 in.

Climate Data for Tiskilwa Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
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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