Sibley Illinois Climate Data

Monthly Average Climate Data for Sibley Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.7 °C0.2 °C54.36 mm
February-6.9 °C2.8 °C46.23 mm
March-1.7 °C9.3 °C65.53 mm
April4.3 °C16.7 °C95 mm
May10.9 °C22.8 °C113.54 mm
June16.2 °C27.6 °C110.49 mm
July17.7 °C29.1 °C103.38 mm
August16.4 °C28.2 °C90.93 mm
September12.1 °C25.6 °C79.5 mm
October5.7 °C18.4 °C82.8 mm
November-0.3 °C10.1 °C68.83 mm
December-5.6 °C3 °C54.36 mm
Annual5 °C16.2 °C964.95 mm

Climate Data for Sibley 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 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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