Lostant Illinois Climate Data

Monthly Average Climate Data for Lostant Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.5 °F31.4 °F1.91 in.
February18.9 °F35.9 °F1.81 in.
March28.6 °F48.3 °F2.49 in.
April39.1 °F61.7 °F3.58 in.
May51.0 °F72.9 °F4.59 in.
June60.7 °F81.7 °F4.31 in.
July64.3 °F84.6 °F3.88 in.
August62.2 °F82.7 °F3.71 in.
September53.9 °F77.5 °F3.42 in.
October42.3 °F64.9 °F2.99 in.
November31.1 °F49.4 °F2.58 in.
December21.3 °F36.7 °F2.02 in.
Annual40.7 °F60.6 °F37.29 in.

Climate Data for Lostant 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 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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