Hanover Park Illinois Climate Data

Monthly Average Climate Data for Hanover Park Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.6 °C-0.8 °C51.56 mm
February-8.1 °C1.4 °C48.77 mm
March-2.8 °C7.8 °C57.66 mm
April2.8 °C14.9 °C96.52 mm
May8.9 °C21.3 °C125.73 mm
June14.5 °C26.8 °C116.59 mm
July17.3 °C29.1 °C95.25 mm
August16.5 °C27.9 °C105.41 mm
September12.1 °C24.2 °C88.39 mm
October5.4 °C16.8 °C86.11 mm
November-0.8 °C8.8 °C64.52 mm
December-6.2 °C2.2 °C54.61 mm
Annual4.2 °C15 °C991.12 mm

Climate Data for Hanover Park 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 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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