Palos Hills Illinois Climate Data

Monthly Average Climate Data for Palos Hills Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8 °C-0.1 °C55.63 mm
February-6.4 °C2 °C52.32 mm
March-1.3 °C8.1 °C60.71 mm
April4.4 °C15.4 °C101.35 mm
May10.4 °C21.6 °C122.17 mm
June16.1 °C27.1 °C110.74 mm
July18.8 °C29.6 °C108.2 mm
August18 °C28.4 °C106.93 mm
September13.7 °C24.9 °C81.79 mm
October6.9 °C17.6 °C88.14 mm
November0.7 °C9.4 °C64.52 mm
December-4.8 °C2.8 °C59.44 mm
Annual5.7 °C15.6 °C1011.94 mm

Climate Data for Palos Hills 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