Spring Valley Illinois Climate Data

Monthly Average Climate Data for Spring Valley Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.2 °F31.4 °F1.75 in.
February18.9 °F35.9 °F1.74 in.
March28.5 °F48.3 °F2.4 in.
April39.1 °F61.8 °F3.46 in.
May50.7 °F73.0 °F4.55 in.
June60.5 °F81.8 °F4.34 in.
July64.0 °F84.7 °F3.85 in.
August61.9 °F83.0 °F3.74 in.
September53.8 °F77.5 °F3.41 in.
October42.2 °F64.9 °F2.93 in.
November31.2 °F49.5 °F2.45 in.
December21.1 °F36.6 °F1.95 in.
Annual40.6 °F60.7 °F36.57 in.

Climate Data for Spring Valley Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
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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