2025 Compare Climate & Weather:
Grand Marais, MN vs Port Huron, MI

Highlights

On average, there are 180 sunny days per year in Port Huron. Grand Marais averages 182 sunny days per year. The US average is 205 sunny days.

Port Huron, Michigan gets 34.3 inches of rain, on average, per year. Grand Marais, Minnesota gets 28.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Port Huron averages 36.6 inches of snow per year. Grand Marais averages 56.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Port Huron, Michigan
Summer High: the July high is around 80.4 degrees
Winter Low: the January low is 16.6
Rain: averages 34.3 inches of rain a year
Snow: averages 36.6 inches of snow a year

Grand Marais, Minnesota
Summer High: the July high is around 70.5 degrees
Winter Low: the January low is 2.4
Rain: averages 28.8 inches of rain a year
Snow: averages 56.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Port Huron is 6.7 (10=best), which means it is more comfortable than most places in Michigan.

The annual BestPlaces Comfort Index for Grand Marais is 5.9 (10=best), which means it is one of the least comfortable places in Minnesota.

Today's Weather - Grand Marais, MN

41°F

Today's Weather - Port Huron, MI

41°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Grand Marais / Port Huron

August is the hottest month for Grand Marais with an average high temperature of 70.6°, which ranks it as one of the coolest places in Minnesota. In Grand Marais, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grand Marais are August, July and June.

July is the hottest month for Port Huron with an average high temperature of 80.4°, which ranks it as cooler than most places in Michigan. In Port Huron, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Port Huron are August, June and July.

January has the coldest nighttime temperatures for Grand Marais with an average of 2.4°. This is about average compared to other places in Minnesota.

January has the coldest nighttime temperatures for Port Huron with an average of 16.6°. This is warmer than most places in Michigan.

In Grand Marais, there are 0.3 days annually when the high temperature is over 90°, which is one of the coolest places in Minnesota.

In Port Huron, there are 5.0 days annually when the high temperature is over 90°, which is about average compared to other places in Michigan.

In Grand Marais, there are 180.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Minnesota.

In Port Huron, there are 133.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Michigan.

In Grand Marais, there are 36.7 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Minnesota.

In Port Huron, there are 4.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

June is the wettest month in Grand Marais with 3.8 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 36% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 28.8 inches in Grand Marais means that it is about average compared to other places in Minnesota.


September is the wettest month in Port Huron with 3.9 inches of rain, and the driest month is February with 1.8 inches. The wettest season is Autumn with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 34.3 inches in Port Huron means that it is wetter than most places in Michigan.

September is the rainiest month in Grand Marais with 10.8 days of rain, and February is the driest month with only 5.0 rainy days. There are 99.9 rainy days annually in Grand Marais, which is about average compared to other places in Minnesota. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 20% chance of a rainy day.

December is the rainiest month in Port Huron with 12.4 days of rain, and July is the driest month with only 9.6 rainy days. There are 129.5 rainy days annually in Port Huron, which is about average compared to other places in Michigan. The rainiest season is Spring when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 56.4 inches in Grand Marais means that it is one of the snowiest places in Minnesota.

An annual snowfall of 36.6 inches in Port Huron means that it is less snowy than most places in Michigan.

January is the snowiest month in Grand Marais with 14.9 inches of snow, and 7 months of the year have significant snowfall.

January is the snowiest month in Port Huron with 11.0 inches of snow, and 6 months of the year have significant snowfall.