Portage Michigan Climate Data

Monthly Average Climate Data for Portage Michigan

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.1 °C-0.4 °C74.42 mm
February-7.5 °C1.3 °C54.61 mm
March-3.2 °C7.2 °C60.2 mm
April3 °C14.9 °C89.15 mm
May9.4 °C21.1 °C107.95 mm
June14.5 °C26.2 °C103.63 mm
July16.4 °C28.3 °C89.66 mm
August15.4 °C27.3 °C105.16 mm
September11.3 °C23.7 °C88.39 mm
October5.2 °C16.4 °C97.28 mm
November-0.1 °C8.8 °C74.42 mm
December-4.8 °C2.3 °C62.48 mm
Annual4.3 °C14.8 °C1007.35 mm

Climate Data for Portage Michigan

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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