Morris Illinois Climate Data

Monthly Average Climate Data for Morris Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.6 °F31.7 °F2.08 in.
February18.5 °F35.8 °F1.87 in.
March28.2 °F47.9 °F2.4 in.
April38.9 °F61.0 °F3.63 in.
May50.1 °F72.3 °F4.66 in.
June60.0 °F81.6 °F4.71 in.
July63.8 °F84.6 °F4.08 in.
August61.8 °F82.7 °F3.94 in.
September53.9 °F77.5 °F3.29 in.
October42.1 °F64.3 °F3.07 in.
November31.5 °F49.4 °F2.47 in.
December21.6 °F36.9 °F2.08 in.
Annual40.5 °F60.5 °F38.28 in.

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