Duluth weather by month

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

Temperature
Rainfall
Sunshine & daylight
UV levels & humidity

Temperature in Duluth (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	-7	-4	2	10	17	22	26	24	19	13	3	-5
Min temperature (night-time)	-18	-15	-8	-1	4	9	13	12	8	2	-5	-14
Heat & Humidity	0	0	0	0	0	0	0	0	0	0	0	0
Sea temperature	2	2	2	2	3	4	9	16	14	8	5	3

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	4	5	6	8	9	9	10	9	7	5	3	3
Daily hours of daylight	9	10	12	14	15	16	15	14	13	11	9	9
UV Index (Maximum)	1	2	3	5	6	8	8	7	5	3	1	1

Rainfall in Duluth

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	12	9	11	10	12	12	11	11	12	10	10	11
Average monthly rainfall (mm)	27	18	44	56	80	98	93	100	96	60	44	29

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.

Duluth weather in January

Expect daytime maximum temperatures of -7°C in Duluth, Minnesota in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall, which might fall as snow.

-7
-7°C max day temperature
4
4 hours of sunshine per day
12
12 days with some rainfall
-18
-18°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
27
27 mm of monthly rainfall
1
1 (Low) UV index
2
2°C sea temperature

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Duluth weather in February

Expect daytime maximum temperatures of -4°C in Duluth, Minnesota in February based on long-term weather averages. There are 5 hours of sunshine per day on average, which might fall as snow.

-4
-4°C max day temperature
5
5 hours of sunshine per day
9
9 days with some rainfall
-15
-15°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
18
18 mm of monthly rainfall
2
2 (Low) UV index
2
2°C sea temperature

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Duluth weather in March

Expect daytime maximum temperatures of 2°C in Duluth, Minnesota in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 11 days with some rainfall and typically 44 mm of rainfall in the month, which might fall as snow.

2
2°C max day temperature
6
6 hours of sunshine per day
11
11 days with some rainfall
-8
-8°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
44
44 mm of monthly rainfall
3
3 (Moderate) UV index
2
2°C sea temperature

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Duluth weather in April

Expect daytime maximum temperatures of 10°C in Duluth, Minnesota in April based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 56 mm of rainfall in the month.

10
10°C max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
-1
-1°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
56
56 mm of monthly rainfall
5
5 (Moderate) UV index
2
2°C sea temperature

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Duluth weather in May

Expect daytime maximum temperatures of 17°C in Duluth, Minnesota in May based on long-term weather averages. There are 9 hours of sunshine per day on average with 12 days with some rainfall and typically 80 mm of rainfall in the month.

17
17°C max day temperature
9
9 hours of sunshine per day
12
12 days with some rainfall
4
4°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
80
80 mm of monthly rainfall
6
6 (High) UV index
3
3°C sea temperature

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Duluth weather in June

Expect daytime maximum temperatures of 22°C in Duluth, Minnesota in June based on long-term weather averages. There are 9 hours of sunshine per day on average with 12 days with some rainfall and typically 98 mm of rainfall in the month.

22
22°C max day temperature
9
9 hours of sunshine per day
12
12 days with some rainfall
9
9°C min night temperature
16
16 hours of daylight per day
0
No heat & humidity
98
98 mm of monthly rainfall
8
8 (Very High) UV index
4
4°C sea temperature

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Duluth weather in July

Expect daytime maximum temperatures of 26°C in Duluth, Minnesota in July based on long-term weather averages. There are 10 hours of sunshine per day on average with 11 days with some rainfall and typically 93 mm of rainfall in the month.

26
26°C max day temperature
10
10 hours of sunshine per day
11
11 days with some rainfall
13
13°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
93
93 mm of monthly rainfall
8
8 (Very High) UV index
9
9°C sea temperature

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Duluth weather in August

Expect daytime maximum temperatures of 24°C in Duluth, Minnesota in August based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 100 mm of rainfall in the month.

24
24°C max day temperature
9
9 hours of sunshine per day
11
11 days with some rainfall
12
12°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
100
100 mm of monthly rainfall
7
7 (High) UV index
16
16°C sea temperature

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Duluth weather in September

Expect daytime maximum temperatures of 19°C in Duluth, Minnesota in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 96 mm of rainfall in the month.

19
19°C max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
8
8°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
96
96 mm of monthly rainfall
5
5 (Moderate) UV index
14
14°C sea temperature

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Duluth weather in October

Expect daytime maximum temperatures of 13°C in Duluth, Minnesota in October based on long-term weather averages. There are 5 hours of sunshine per day on average with 10 days with some rainfall and typically 60 mm of rainfall in the month.

13
13°C max day temperature
5
5 hours of sunshine per day
10
10 days with some rainfall
2
2°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
60
60 mm of monthly rainfall
3
3 (Moderate) UV index
8
8°C sea temperature

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Duluth weather in November

Expect daytime maximum temperatures of 3°C in Duluth, Minnesota in November based on long-term weather averages. There are 3 hours of sunshine per day on average with 10 days with some rainfall and typically 44 mm of rainfall in the month, which might fall as snow.

3
3°C max day temperature
3
3 hours of sunshine per day
10
10 days with some rainfall
-5
-5°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
44
44 mm of monthly rainfall
1
1 (Low) UV index
5
5°C sea temperature

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Duluth weather in December

Expect daytime maximum temperatures of -5°C in Duluth, Minnesota in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 11 days with some rainfall, which might fall as snow.

-5
-5°C max day temperature
3
3 hours of sunshine per day
11
11 days with some rainfall
-14
-14°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
29
29 mm of monthly rainfall
1
1 (Low) UV index
3
3°C sea temperature

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