Port Sanilac Michigan Climate Data

Monthly Average Climate Data for Port Sanilac Michigan

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.9 °C-1.2 °C58.17 mm
February-8 °C-0.2 °C48.01 mm
March-3.7 °C4.3 °C52.32 mm
April1.8 °C10 °C80.52 mm
May7.5 °C16.3 °C85.85 mm
June13.2 °C21.9 °C82.8 mm
July16.8 °C25.3 °C77.22 mm
August16.3 °C25.1 °C83.06 mm
September12.7 °C22 °C81.28 mm
October6.6 °C15 °C77.72 mm
November0.8 °C7.9 °C66.04 mm
December-4.2 °C1.9 °C59.18 mm
Annual4.3 °C12.4 °C852.17 mm

Climate Data for Port Sanilac 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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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