Ridgway Illinois Climate Data

Monthly Average Climate Data for Ridgway Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-3.8 °C5.2 °C91.44 mm
February-2.3 °C7.9 °C81.28 mm
March2.1 °C13.3 °C113.54 mm
April7.7 °C19.9 °C124.97 mm
May13.6 °C24.9 °C129.79 mm
June18.3 °C29.5 °C111 mm
July20 °C31.1 °C103.38 mm
August18.7 °C30.6 °C76.2 mm
September14.6 °C27.8 °C79.76 mm
October8.1 °C21.2 °C84.84 mm
November2.3 °C13.6 °C101.6 mm
December-1.8 °C7.6 °C96.77 mm
Annual8.1 °C19.4 °C1194.57 mm

Climate Data for Ridgway Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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