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Duluth, MN Weather


Duluth, MN climate is mild during summer when temperatures tend to be in the 60's and extremely cold during winter when temperatures tend to be in the 10's.

The warmest month of the year is July with an average maximum temperature of 74.90 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 1.10 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 17 degrees Fahrenheit, and fairly limited during winter with an average difference of 18 degrees Fahrenheit.

The annual average precipitation at Duluth is 25.60 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is July with an average rainfall of 3.73 Inches.

Weather Data

Moon, Sunrise and Sunset

Waxing Gibbous Moon Moon Phase: Waxing Gibbous Moon Civil Twilight:
7:17 AM CDT
Sunrise:
7:48 AM CDT
Sunset:
5:53 PM CDT
Civil Twilight:
6:25 PM CDT

Normal Climate

Normal Temperatures

(DULUTH HARBOR STA Weather station, 1.55 miles from Duluth)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 19.6 25.8 34.5 46.5 57.4 67.6 74.9 73.0 64.5 52.6 37.2 24.5 48.2
Mean °F 10.4 16.6 26.4 38.5 48.4 57.9 65.8 65.3 56.4 45.2 30.5 16.7 39.8
Min °F 1.1 7.4 18.3 30.5 39.3 48.1 56.7 57.5 48.2 37.8 23.7 8.8 31.5

Normal Precipitation

(DULUTH HARBOR STA Weather station, 1.55 miles from Duluth)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 0.95 0.53 1.37 1.58 2.26 3.71 3.73 3.69 3.71 1.89 1.39 0.79 25.60