Sublette Illinois Climate Data

Monthly Average Climate Data for Sublette Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.2 °F28.9 °F1.74 in.
February16.1 °F33.4 °F1.73 in.
March26.1 °F45.9 °F2.35 in.
April36.5 °F59.6 °F3.57 in.
May48.4 °F71.2 °F4.78 in.
June58.3 °F79.9 °F5.02 in.
July61.6 °F82.9 °F4.12 in.
August59.5 °F81.2 °F3.93 in.
September51.3 °F75.5 °F3.49 in.
October39.6 °F62.6 °F2.89 in.
November28.7 °F47.2 °F2.39 in.
December18.5 °F34.3 °F1.97 in.
Annual38.1 °F58.6 °F37.98 in.

Climate Data for Sublette 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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