Troy Grove Illinois Climate Data

Monthly Average Climate Data for Troy Grove Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.5 °F30.8 °F1.78 in.
February18.3 °F35.3 °F1.73 in.
March27.9 °F47.7 °F2.38 in.
April38.4 °F61.1 °F3.58 in.
May50.1 °F72.5 °F4.61 in.
June59.9 °F81.2 °F4.68 in.
July63.4 °F84.1 °F4.08 in.
August61.3 °F82.3 °F3.86 in.
September53.3 °F76.9 °F3.44 in.
October41.6 °F64.2 °F3.02 in.
November30.7 °F48.9 °F2.47 in.
December20.5 °F36.0 °F1.98 in.
Annual40 °F60.1 °F37.61 in.

Climate Data for Troy Grove 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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