Viola Illinois Climate Data

Monthly Average Climate Data for Viola Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.0 °F30.5 °F1.59 in.
February17.4 °F35.2 °F1.83 in.
March28.0 °F48.5 °F2.41 in.
April38.9 °F61.5 °F3.79 in.
May50.9 °F72.2 °F4.92 in.
June60.7 °F80.9 °F4.77 in.
July64.3 °F84.0 °F4.01 in.
August62.1 °F82.2 °F3.78 in.
September53.9 °F76.4 °F3.72 in.
October42.1 °F63.7 °F2.86 in.
November30.2 °F48.6 °F2.32 in.
December20.0 °F36.1 °F1.96 in.
Annual40.2 °F60 °F37.96 in.

Climate Data for Viola 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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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