Clinton Illinois Climate Data

Monthly Average Climate Data for Clinton Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.2 °C0.9 °C59.44 mm
February-6.4 °C3.6 °C51.56 mm
March-1.4 °C10.1 °C71.37 mm
April4.7 °C17.4 °C101.35 mm
May11.2 °C23.2 °C115.57 mm
June16.3 °C28.1 °C115.82 mm
July17.9 °C29.7 °C106.93 mm
August16.7 °C28.7 °C85.34 mm
September12.4 °C26 °C79.5 mm
October5.9 °C18.8 °C88.39 mm
November-0.2 °C10.6 °C78.23 mm
December-5.1 °C3.7 °C63.25 mm
Annual5.3 °C16.7 °C1016.75 mm

Climate Data for Clinton Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 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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