Morris Illinois Climate Data

Monthly Average Climate Data for Morris Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.1 °C-0.2 °C52.83 mm
February-7.5 °C2.1 °C47.5 mm
March-2.1 °C8.8 °C60.96 mm
April3.8 °C16.1 °C92.2 mm
May10.1 °C22.4 °C118.36 mm
June15.6 °C27.6 °C119.63 mm
July17.7 °C29.2 °C103.63 mm
August16.6 °C28.2 °C100.08 mm
September12.2 °C25.3 °C83.57 mm
October5.6 °C17.9 °C77.98 mm
November-0.3 °C9.7 °C62.74 mm
December-5.8 °C2.7 °C52.83 mm
Annual4.7 °C15.8 °C972.31 mm

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 : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com