Roscoe Illinois Climate Data

Monthly Average Climate Data for Roscoe Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.8 °C-2.1 °C41.91 mm
February-9.1 °C0.3 °C41.66 mm
March-3.3 °C7.1 °C53.85 mm
April2.7 °C14.3 °C92.96 mm
May9.1 °C20.8 °C110.74 mm
June14.7 °C26.3 °C137.41 mm
July16.8 °C28.3 °C96.27 mm
August15.9 °C27.4 °C106.68 mm
September11.2 °C23.7 °C96.01 mm
October4.8 °C16.5 °C74.17 mm
November-1.5 °C8 °C60.96 mm
December-7.1 °C1.1 °C50.04 mm
Annual3.6 °C14.3 °C962.66 mm

Climate Data for Roscoe 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 : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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