Morton Grove Illinois Climate Data

Monthly Average Climate Data for Morton Grove Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.7 °C-0.2 °C56.13 mm
February-6.1 °C2 °C54.1 mm
March-1.2 °C7.6 °C57.15 mm
April4.4 °C13.9 °C98.04 mm
May10.6 °C20.4 °C119.13 mm
June16.2 °C26.1 °C112.52 mm
July19.3 °C28.4 °C94.49 mm
August18.7 °C27.4 °C103.89 mm
September14.4 °C23.8 °C88.39 mm
October7.7 °C17 °C87.63 mm
November1.1 °C9.1 °C66.04 mm
December-4.3 °C2.8 °C58.42 mm
Annual6.1 °C14.9 °C995.93 mm

Climate Data for Morton Grove 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 6a : -23.3°C to -20.6°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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