Duluth weather by month

Check out Duluth weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Duluth (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
19°F maximum daytime temperature in January in Duluth19
25°F maximum daytime temperature in February in Duluth25
36°F maximum daytime temperature in March in Duluth36
50°F maximum daytime temperature in April in Duluth50
63°F maximum daytime temperature in May in Duluth63
72°F maximum daytime temperature in June in Duluth72
79°F maximum daytime temperature in July in Duluth79
75°F maximum daytime temperature in August in Duluth75
66°F maximum daytime temperature in September in Duluth66
55°F maximum daytime temperature in October in Duluth55
37°F maximum daytime temperature in November in Duluth37
23°F maximum daytime temperature in December in Duluth23
Min temperature (night-time)
-0°F minimum night-time temperature in January in Duluth-0
5°F minimum night-time temperature in February in Duluth5
18°F minimum night-time temperature in March in Duluth18
30°F minimum night-time temperature in April in Duluth30
39°F minimum night-time temperature in May in Duluth39
48°F minimum night-time temperature in June in Duluth48
55°F minimum night-time temperature in July in Duluth55
54°F minimum night-time temperature in August in Duluth54
46°F minimum night-time temperature in September in Duluth46
36°F minimum night-time temperature in October in Duluth36
23°F minimum night-time temperature in November in Duluth23
7°F minimum night-time temperature in December in Duluth7
Heat & Humidity
No heat & humidity in January in Duluth0
No heat & humidity in February in Duluth0
No heat & humidity in March in Duluth0
No heat & humidity in April in Duluth0
No heat & humidity in May in Duluth0
No heat & humidity in June in Duluth0
No heat & humidity in July in Duluth0
No heat & humidity in August in Duluth0
No heat & humidity in September in Duluth0
No heat & humidity in October in Duluth0
No heat & humidity in November in Duluth0
No heat & humidity in December in Duluth0
Sea temperature
36°F sea temperature in January in Duluth36
36°F sea temperature in February in Duluth36
36°F sea temperature in March in Duluth36
36°F sea temperature in April in Duluth36
37°F sea temperature in May in Duluth37
39°F sea temperature in June in Duluth39
48°F sea temperature in July in Duluth48
61°F sea temperature in August in Duluth61
57°F sea temperature in September in Duluth57
46°F sea temperature in October in Duluth46
41°F sea temperature in November in Duluth41
37°F sea temperature in December in Duluth37

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Duluth

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in Duluth9
10 hours of daylight per day in February in Duluth10
12 hours of daylight per day in March in Duluth12
14 hours of daylight per day in April in Duluth14
15 hours of daylight per day in May in Duluth15
16 hours of daylight per day in June in Duluth16
15 hours of daylight per day in July in Duluth15
14 hours of daylight per day in August in Duluth14
13 hours of daylight per day in September in Duluth13
11 hours of daylight per day in October in Duluth11
9 hours of daylight per day in November in Duluth9
9 hours of daylight per day in December in Duluth9
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Duluth1
UV (maximum) index 2 (Low) in February in Duluth2
UV (maximum) index 3 (Moderate) in March in Duluth3
UV (maximum) index 5 (Moderate) in April in Duluth5
UV (maximum) index 6 (High) in May in Duluth6
UV (maximum) index 8 (Very High) in June in Duluth8
UV (maximum) index 8 (Very High) in July in Duluth8
UV (maximum) index 7 (High) in August in Duluth7
UV (maximum) index 5 (Moderate) in September in Duluth5
UV (maximum) index 3 (Moderate) in October in Duluth3
UV (maximum) index 1 (Low) in November in Duluth1
UV (maximum) index 1 (Low) in December in Duluth1

Rainfall in Duluth

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
12 days with some rainfall in January in Duluth12
9 days with some rainfall in February in Duluth9
11 days with some rainfall in March in Duluth11
10 days with some rainfall in April in Duluth10
12 days with some rainfall in May in Duluth12
12 days with some rainfall in June in Duluth12
11 days with some rainfall in July in Duluth11
11 days with some rainfall in August in Duluth11
12 days with some rainfall in September in Duluth12
10 days with some rainfall in October in Duluth10
10 days with some rainfall in November in Duluth10
11 days with some rainfall in December in Duluth11
Average monthly rainfall (inches)
1.1 inches monthly rainfall in January in Duluth1.1
0.7 inches monthly rainfall in February in Duluth0.7
1.7 inches monthly rainfall in March in Duluth1.7
2.2 inches monthly rainfall in April in Duluth2.2
3.1 inches monthly rainfall in May in Duluth3.1
3.9 inches monthly rainfall in June in Duluth3.9
3.7 inches monthly rainfall in July in Duluth3.7
3.9 inches monthly rainfall in August in Duluth3.9
3.8 inches monthly rainfall in September in Duluth3.8
2.4 inches monthly rainfall in October in Duluth2.4
1.7 inches monthly rainfall in November in Duluth1.7
1.1 inches monthly rainfall in December in Duluth1.1

More about Duluth

Duluth by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Minnesota (Duluth) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Duluth?

Duluth has a cold climate with warm summers and some rainfall in all months.

Metric (°C)  |  Imperial (°F)

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More about the USA

Compare Duluth with the USA

Below the Duluth chart shows average maximum daytime temperature for Duluth, Minnesota, USA and the USA (Washington).

Maximum daytime temperature (°F)

Duluth, Minnesota, USA
USA (Washington)
41
45
36
55
50
66
63
75
72
84
79
88
75
86
66
79
55
68
37
57
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
19
25
23

Metric (°C)  |  Imperial (°F)

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