La Grange Illinois Climate Data

Monthly Average Climate Data for La Grange Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.1 °C-0.1 °C55.63 mm
February-6.6 °C2.1 °C53.34 mm
March-1.4 °C8.3 °C60.45 mm
April4.4 °C15.3 °C101.09 mm
May10.4 °C21.6 °C121.92 mm
June16.1 °C27.1 °C111.76 mm
July18.8 °C29.6 °C104.9 mm
August18 °C28.4 °C105.92 mm
September13.7 °C24.8 °C82.8 mm
October6.8 °C17.5 °C88.39 mm
November0.6 °C9.6 °C64.52 mm
December-5 °C2.9 °C58.93 mm
Annual5.6 °C15.6 °C1009.65 mm

Climate Data for La Grange Illinois

Average First Frost DateOct. 21 - Oct. 31
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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