Howell Michigan Climate Data

Monthly Average Climate Data for Howell Michigan

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.1 °C-0.8 °C55.37 mm
February-8.7 °C0.8 °C42.16 mm
March-4.2 °C6.5 °C51.05 mm
April2.1 °C13.9 °C80.26 mm
May8.3 °C20.6 °C92.71 mm
June13.6 °C25.8 °C93.73 mm
July15.4 °C28 °C80.77 mm
August14.8 °C27 °C85.85 mm
September10.7 °C23.4 °C80.52 mm
October4.6 °C16.2 °C70.36 mm
November-0.7 °C8.5 °C61.72 mm
December-5.5 °C2 °C51.31 mm
Annual3.4 °C14.3 °C845.81 mm

Climate Data for Howell Michigan

Average First Frost DateOct. 1 - Oct. 10
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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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