Port Huron Michigan Climate Data

Monthly Average Climate Data for Port Huron Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.3 °F30.7 °F2.57 in.
February18.6 °F32.5 °F2.07 in.
March26.3 °F41.1 °F2.32 in.
April36.1 °F53.4 °F3.32 in.
May47.0 °F65.4 °F3.54 in.
June57.0 °F75.7 °F3.51 in.
July62.5 °F80.4 °F3.1 in.
August61.2 °F79.2 °F3.07 in.
September54.2 °F73.3 °F3.18 in.
October43.8 °F60.7 °F2.99 in.
November33.9 °F47.8 °F2.79 in.
December25.0 °F36.4 °F2.5 in.
Annual40.3 °F56.4 °F34.96 in.

Climate Data for Port Huron Michigan

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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