Macomb Illinois Climate Data

Monthly Average Climate Data for Macomb Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.1 °C0.3 °C46.23 mm
February-7.1 °C2.9 °C48.26 mm
March-1.5 °C9.8 °C58.42 mm
April4.4 °C17.1 °C99.57 mm
May11.1 °C22.9 °C130.81 mm
June16.4 °C27.8 °C125.22 mm
July18.1 °C29.4 °C102.11 mm
August16.7 °C28.5 °C88.9 mm
September12.1 °C25.6 °C95.5 mm
October5.7 °C18.7 °C79.5 mm
November-0.6 °C10.3 °C68.07 mm
December-5.9 °C3.2 °C48.51 mm
Annual5 °C16.4 °C991.1 mm

Climate Data for Macomb Illinois

Average First Frost DateOct. 11 - Oct. 20
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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