2025 Compare Climate & Weather:
Duluth, MN vs Superior, WI

Highlights

On average, there are 177 sunny days per year in Superior. Duluth averages 178 sunny days per year. The US average is 205 sunny days.

Superior, Wisconsin gets 31.1 inches of rain, on average, per year. Duluth, Minnesota gets 31.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Superior averages 63.3 inches of snow per year. Duluth averages 69.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Superior, Wisconsin
Summer High: the July high is around 75.8 degrees
Winter Low: the January low is 2.7
Rain: averages 31.1 inches of rain a year
Snow: averages 63.3 inches of snow a year

Duluth, Minnesota
Summer High: the July high is around 76.5 degrees
Winter Low: the January low is 2.3
Rain: averages 31.2 inches of rain a year
Snow: averages 69.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Superior is 6.1 (10=best), which means it is one of the least comfortable places in Wisconsin.

The annual BestPlaces Comfort Index for Duluth is 6.0 (10=best), which means it is one of the least comfortable places in Minnesota.

Today's Weather - Duluth, MN

39°F

Today's Weather - Superior, WI

41°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Duluth / Superior

July is the hottest month for Duluth with an average high temperature of 76.5°, which ranks it as one of the coolest places in Minnesota. In Duluth, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Duluth are July, August and June.

July is the hottest month for Superior with an average high temperature of 75.8°, which ranks it as one of the coolest places in Wisconsin. In Superior, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Superior are July, August and June.

January has the coldest nighttime temperatures for Duluth with an average of 2.3°. This is about average compared to other places in Minnesota.

January has the coldest nighttime temperatures for Superior with an average of 2.7°. This is colder than most places in Wisconsin.

In Duluth, there are 2.4 days annually when the high temperature is over 90°, which is one of the coolest places in Minnesota.

In Superior, there are 2.3 days annually when the high temperature is over 90°, which is one of the coolest places in Wisconsin.

In Duluth, there are 174.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Minnesota.

In Superior, there are 170.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Wisconsin.

In Duluth, there are 36.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Minnesota.

In Superior, there are 34.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Wisconsin.

September is the wettest month in Duluth with 4.1 inches of rain, and the driest month is February with 0.8 inches. The wettest season is Autumn with 38% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 31.2 inches in Duluth means that it is wetter than most places in Minnesota.


July is the wettest month in Superior with 4.2 inches of rain, and the driest month is January with 0.8 inches. The wettest season is Autumn with 39% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 31.1 inches in Superior means that it is drier than most places in Wisconsin.

June is the rainiest month in Duluth with 12.1 days of rain, and February is the driest month with only 6.8 rainy days. There are 117.3 rainy days annually in Duluth, which is one of the rainiest places in Minnesota. The rainiest season is Autumn when it rains 28% of the time and the driest is Spring with only a 21% chance of a rainy day.

June is the rainiest month in Superior with 11.9 days of rain, and February is the driest month with only 6.0 rainy days. There are 109.8 rainy days annually in Superior, which is less rainy than most places in Wisconsin. The rainiest season is Autumn when it rains 29% of the time and the driest is Spring with only a 20% chance of a rainy day.

An annual snowfall of 69.5 inches in Duluth means that it is one of the snowiest places in Minnesota.

An annual snowfall of 63.3 inches in Superior means that it is one of the snowiest places in Wisconsin.

January is the snowiest month in Duluth with 16.0 inches of snow, and 7 months of the year have significant snowfall.

January is the snowiest month in Superior with 15.3 inches of snow, and 7 months of the year have significant snowfall.