Port Huron Average Temperature by Month

This page shows the average temperature in each month of the year in Port Huron, Michigan. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Port Huron?
In Port Huron, Michigan, the warmest month is July, with an average daily high temperature of 81.9 °F and an average low of 64.1 °F.
What's the Coldest Month in Port Huron?
In Port Huron, Michigan, the coolest month is January, with an average daily high temperature of 31.5 °F and an average low of 18.2 °F.
Month Avg. High Avg. Low
January 31.5 °F 18.2 °F
February 33.8 °F 19.1 °F
March 42.5 °F 26.7 °F
April 55.0 °F 36.9 °F
May 67.0 °F 47.4 °F
June 77.0 °F 58.0 °F
July 81.9 °F 64.1 °F
August 80.3 °F 63.1 °F
September 73.7 °F 55.9 °F
October 61.1 °F 44.7 °F
November 47.5 °F 34.2 °F
December 36.0 °F 24.3 °F
Year 57.6 °F 41.5 °F
Weather Station Details
Years Station Coordinates
1933–2024 Port Huron location
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