Spring Grove Illinois Climate Data

Monthly Average Climate Data for Spring Grove Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.3 °F29.0 °F1.83 in.
February16.2 °F32.8 °F1.85 in.
March25.5 °F43.8 °F2.22 in.
April35.9 °F56.9 °F3.83 in.
May46.5 °F68.5 °F4.47 in.
June56.8 °F78.2 °F4.82 in.
July61.4 °F82.3 °F3.78 in.
August59.8 °F80.8 °F3.81 in.
September52.0 °F74.1 °F3.65 in.
October40.5 °F60.9 °F3.12 in.
November29.9 °F46.6 °F2.42 in.
December19.6 °F34.3 °F2.04 in.
Annual38.1 °F57.4 °F37.84 in.

Climate Data for Spring 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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