Duluth, Minnesota 

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Climate in Duluth, Minnesota

Duluth, Minnesota gets 31 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Duluth averages 70 inches of snow per year. The US average is 28 inches of snow per year.

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

Duluth gets some kind of precipitation, on average, 117 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 77 degrees
Winter Low: the January low is 2
Rain: averages 31 inches of rain a year
Snow: averages 70 inches of snow a year


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

9 / 3.2

Summer   /   Winter
August, July and June are the most pleasant months in Duluth, while January and December are the least comfortable months.

Climate Averages
  Duluth, MinnesotaUnited States
  31.2 in.38.1 in.
  69.5 in.27.8 in.
  117.3 days106.2 days
  178 days205 days
  702 ft.2443 ft.


Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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.

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

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

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 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.

Humidity in Duluth is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are August, July and June.

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.

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.

An annual snowfall of 69.5 inches in Duluth means that it is one of the snowiest places in Minnesota. January is the snowiest month in Duluth with 16.0 inches of snow, and 7 months of the year have significant snowfall.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Duluth    18 Reviews
    Intriguing and diverse city! - 8/29/2021
    My husband and I just visited Duluth for our anniversary. We stayed in Canal Park and found the area fun and convenient for travelers. Lots of quaint shops and... Read More

    Start Your Review of Duluth

    Duluth, not my favorite. - 3/14/2021
    It is the worse weather in the U.S. as far as small cities that large. The houses are fare below par. they are old shingle 1920s vintage generally and not normally well... Read More

    Love my adopted hometown! - 5/17/2020
    I moved to Duluth fifteen years ago today from Arizona with my (at that time) 3 children, who were 1, 4 and 8. My daughter was born here 2 years later. I have never once... Read More

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