Twin Grove Illinois Climate Data

Monthly Average Climate Data for Twin Grove Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.0 °F32.4 °F2.33 in.
February19.5 °F37.3 °F1.92 in.
March28.8 °F49.4 °F2.71 in.
April39.8 °F62.7 °F3.81 in.
May51.4 °F73.4 °F4.61 in.
June61.1 °F82.3 °F4.17 in.
July64.2 °F85.5 °F3.83 in.
August62.3 °F83.5 °F3.66 in.
September54.5 °F78.4 °F3.3 in.
October43.0 °F65.3 °F3.31 in.
November31.6 °F50.3 °F2.82 in.
December21.9 °F37.6 °F2.36 in.
Annual41.2 °F61.5 °F38.83 in.

Climate Data for Twin 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 6a : -10°F to -5°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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