World Resorts USA Duluth

Duluth Monthly Weather Averages

Please click on any column to get detailed information about Duluth weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
12
24
36
48
60
72
84
96
25.2
37.5
52.0
67.8
73.8
74.2
68.8
56.8
41.5
32.7
18.9
18.5
20.4
30.8
42.5
54.3
60.3
59.9
55.2
44.2
32.3
24.1
10.7
11.6
Day temperature   
Night temperature

The warmest month in Duluth is july. The average daily temp is 74.2°F. The average nightly temp is 59.9°F.

Sea water temperature, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
11
22
33
44
55
66
77
88
36.9
45
54.5
62.7
65.5
63.9
52.8
41.5
36.8
33.7
33.2
33.8

The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 65.5°F.

Precipitation total, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.3
0.5
0.8
1.1
1.3
1.6
1.9
0.6
0.5
0.7
0.8
1.4
1.6
1.3
1.3
1.3
0.7
0.2
0.2

February is the month with least precipitations during the year. The average precipitation totals for this month is 0.2 in. The month with most precipitation total is July.

Number of rainy days

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
4
1
1
1
2
3
3
3
2
2
2
0
0

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
7.8
8.1
7.8
7
6.8
6.1
7
7.7
9.1
8.4
7.7
7.5
Sunny, partly cloudy and cloudy days
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
25
30
35
19
13
12
6
8
6
9
12
19
17
16
20
8
10
11
9
9
12
12
10
8
8
8
7
4
7
8
15
14
13
9
9
4
6
4
4
Cloudy days   
Partly cloudy days   
Sunny days
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
11
2.6
4
5.4
8
9
9.6
8.5
7.3
4.4
4.7
3.9
3.2

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

* Charts above show average data for the last 3 years.

Best time for vacation in Duluth

Sunniest months:
September 15 days
August 14 days
July 13 days
Warmest months:
July 74.2 °F
August 73.8 °F
June 68.8 °F
Warmest sea temp:
August 65.5 °F
July 63.9 °F
September 62.7 °F
Coldest months:
January 18.5 °F
February 18.9 °F
December 25.2 °F
Rainiest months:
August 3 days
June 3 days
July 3 days
Windiest months:
April 9.1 mph
March 8.4 mph
November 8.1 mph

Duluth on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+43°F
+54°F
+73°F
+73°F
+66°F
+57°F
+72°F
+45°F
+64°F
+55°F
+50°F
+59°F
+63°F
+68°F
+54°F
24 Hours Forecast
Duluth
Local time: 00:42
April 14, monday
0300
43°F
E
9 mph
0600
36°F
SE
14 mph
0900
37°F
SE
16 mph
1200
41°F
E
16 mph
1500
41°F
SE
16 mph
1800
39°F
SE
15 mph
2100
37°F
SE
16 mph
April 15, tuesday
0000
34°F
SE
17 mph
Units of measurement: °C / °F