Palos Hills Illinois Climate Data

Monthly Average Climate Data for Palos Hills Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.6 °F31.8 °F2.19 in.
February20.4 °F35.6 °F2.06 in.
March29.7 °F46.5 °F2.39 in.
April39.9 °F59.8 °F3.99 in.
May50.8 °F70.9 °F4.81 in.
June60.9 °F80.8 °F4.36 in.
July65.9 °F85.3 °F4.26 in.
August64.4 °F83.2 °F4.21 in.
September56.6 °F76.8 °F3.22 in.
October44.4 °F63.6 °F3.47 in.
November33.3 °F49.0 °F2.54 in.
December23.3 °F37.1 °F2.34 in.
Annual42.3 °F60 °F39.84 in.

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 : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation