Sheridan Illinois Climate Data

Monthly Average Climate Data for Sheridan Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.9 °F30.8 °F1.82 in.
February18.2 °F35.2 °F1.76 in.
March27.9 °F47.4 °F2.34 in.
April38.5 °F60.7 °F3.63 in.
May49.9 °F71.9 °F4.65 in.
June59.8 °F81.1 °F4.61 in.
July63.4 °F84.1 °F3.93 in.
August61.4 °F82.2 °F3.87 in.
September53.5 °F76.9 °F3.42 in.
October41.7 °F64.0 °F3.18 in.
November31.0 °F49.0 °F2.53 in.
December20.9 °F36.1 °F2.08 in.
Annual40.1 °F60 °F37.82 in.

Climate Data for Sheridan Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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