Chatsworth Illinois Climate Data

Monthly Average Climate Data for Chatsworth Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.7 °C0.3 °C57.15 mm
February-7 °C2.9 °C47.5 mm
March-1.7 °C9.5 °C66.8 mm
April4.1 °C17.1 °C96.01 mm
May10.6 °C23.2 °C112.01 mm
June15.9 °C27.9 °C114.3 mm
July17.6 °C29.4 °C110.74 mm
August16.2 °C28.5 °C93.47 mm
September11.7 °C25.8 °C73.91 mm
October5.4 °C18.8 °C81.03 mm
November-0.3 °C10.2 °C69.34 mm
December-5.7 °C3.1 °C51.56 mm
Annual4.8 °C16.4 °C973.82 mm

Climate Data for Chatsworth 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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