Apple River Illinois Climate Data

Monthly Average Climate Data for Apple River Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.7 °C-2.7 °C35.81 mm
February-9.8 °C-0.3 °C40.39 mm
March-3.7 °C6.7 °C55.12 mm
April2.3 °C14.3 °C99.31 mm
May8.9 °C20.8 °C111.25 mm
June14.5 °C26 °C145.29 mm
July16.5 °C27.7 °C118.62 mm
August15.3 °C26.8 °C105.41 mm
September10.7 °C23.2 °C94.23 mm
October4.2 °C16.1 °C75.18 mm
November-1.9 °C7.6 °C61.21 mm
December-8 °C0.4 °C45.72 mm
Annual3.1 °C13.9 °C987.54 mm

Climate Data for Apple River Illinois

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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