West Salem Illinois Climate Data

Monthly Average Climate Data for West Salem Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.9 °C4.1 °C87.12 mm
February-3.3 °C6.9 °C69.34 mm
March1.4 °C12.7 °C100.84 mm
April7.1 °C19.4 °C130.05 mm
May13.1 °C24.9 °C127.51 mm
June18.1 °C29.6 °C122.68 mm
July19.6 °C31.2 °C106.43 mm
August18.4 °C30.7 °C80.52 mm
September14.1 °C27.6 °C84.07 mm
October7.7 °C21 °C89.92 mm
November1.8 °C12.8 °C100.33 mm
December-2.6 °C6.4 °C86.36 mm
Annual7.5 °C18.9 °C1185.17 mm

Climate Data for West Salem Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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