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Best time to visit Duluth, MN, USA

Our verdict

The best time to visit Duluth is March-May

While Duluth is a popular destination to visit all year round, March-May is the ideal time to go due to a number of factors such as the climate, cost of travel and accommodation, as well as avoiding peak holiday periods.

In summer, the temperature in Duluth can rise as high as 28℃ (82℉). The coldest it usually gets in winter-time in Duluth is around -21℃ (-6℉).

The longest days between sunrise and sunset in Duluth are usually in July, so if you want to get the most out of your daytime activities, be sure to plan your visit around this time. The wet season in Duluth falls around May, so if you prefer the dryer weather, you should look to visit in January instead.

Continue reading to find out more about when to visit Duluth, including the climate, seasonal info, what to pack, FAQs, and the best tools to help you plan and book your next vacation.

Warmest month

July

Least rainfall

January

Most daylight

July

Duluth seasons

Before you continue, it’s important to know when the seasons are in Duluth as they might be different to yours depending on where in the world you’re travelling from. Duluth is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Duluth

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Duluth for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Duluth climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Duluth for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Duluth in January

  • Average temperature: -12℃ (11℉)
  • Average high temperature: -8℃ (17℉)
  • Average low temperature: -16℃ (4℉)
  • Average humidity: 91%
  • Average sunny days: 12 days
  • Average rainfall: 22mm (1") over 3 days
  • Average snow days: 20 days
12 days
of pure sunshine
3 days
of showers or rain

What to pack: If you’re heading to Duluth in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Duluth in February

  • Average temperature: -10℃ (14℉)
  • Average high temperature: -6℃ (21℉)
  • Average low temperature: -14℃ (7℉)
  • Average humidity: 90%
  • Average sunny days: 10 days
  • Average rainfall: 25mm (1") over 3 days
  • Average snow days: 18 days
10 days
of pure sunshine
3 days
of showers or rain

What to pack: If you’re heading to Duluth in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Duluth in March

  • Average temperature: -2℃ (28℉)
  • Average high temperature: 1℃ (34℉)
  • Average low temperature: -6℃ (21℉)
  • Average humidity: 86%
  • Average sunny days: 11 days
  • Average rainfall: 39mm (2") over 10 days
  • Average snow days: 13 days
11 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to Duluth in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Duluth in April

  • Average temperature: 4℃ (39℉)
  • Average high temperature: 8℃ (46℉)
  • Average low temperature: -0℃ (31℉)
  • Average humidity: 77%
  • Average sunny days: 11 days
  • Average rainfall: 64mm (3") over 14 days
  • Average snow days: 7 days
11 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to Duluth in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Duluth in May

  • Average temperature: 11℃ (52℉)
  • Average high temperature: 16℃ (61℉)
  • Average low temperature: 6℃ (42℉)
  • Average humidity: 72%
  • Average sunny days: 11 days
  • Average rainfall: 72mm (3") over 16 days
  • Average snow days: 1 days
11 days
of pure sunshine
16 days
of showers or rain

What to pack: If you’re heading to Duluth in May, make sure you pack a warm jacket or coat.


Duluth in June

  • Average temperature: 16℃ (60℉)
  • Average high temperature: 22℃ (71℉)
  • Average low temperature: 10℃ (51℉)
  • Average humidity: 76%
  • Average sunny days: 10 days
  • Average rainfall: 69mm (3") over 17 days
10 days
of pure sunshine
17 days
of showers or rain

What to pack: If you’re heading to Duluth in June, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.


Duluth in July

  • Average temperature: 20℃ (67℉)
  • Average high temperature: 25℃ (78℉)
  • Average low temperature: 14℃ (57℉)
  • Average humidity: 75%
  • Average sunny days: 12 days
  • Average rainfall: 55mm (2") over 16 days
12 days
of pure sunshine
16 days
of showers or rain

What to pack: If you’re heading to Duluth in July, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Duluth in August

  • Average temperature: 19℃ (65℉)
  • Average high temperature: 24℃ (76℉)
  • Average low temperature: 13℃ (56℉)
  • Average humidity: 76%
  • Average sunny days: 14 days
  • Average rainfall: 54mm (2") over 14 days
14 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to Duluth in August, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Duluth in September

  • Average temperature: 14℃ (57℉)
  • Average high temperature: 19℃ (67℉)
  • Average low temperature: 9℃ (49℉)
  • Average humidity: 78%
  • Average sunny days: 13 days
  • Average rainfall: 52mm (2") over 14 days
13 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to Duluth in September, make sure you pack a warm jacket or coat.

Duluth in October

  • Average temperature: 7℃ (44℉)
  • Average high temperature: 11℃ (51℉)
  • Average low temperature: 4℃ (39℉)
  • Average humidity: 78%
  • Average sunny days: 14 days
  • Average rainfall: 60mm (2") over 14 days
  • Average snow days: 3 days
14 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to Duluth in October, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Duluth in November

  • Average temperature: -1℃ (31℉)
  • Average high temperature: 2℃ (36℉)
  • Average low temperature: -4℃ (26℉)
  • Average humidity: 81%
  • Average sunny days: 14 days
  • Average rainfall: 31mm (1") over 7 days
  • Average snow days: 10 days
14 days
of pure sunshine
7 days
of showers or rain

What to pack: If you’re heading to Duluth in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Duluth in December

  • Average temperature: -8℃ (17℉)
  • Average high temperature: -5℃ (22℉)
  • Average low temperature: -11℃ (12℉)
  • Average humidity: 89%
  • Average sunny days: 12 days
  • Average rainfall: 43mm (2") over 5 days
  • Average snow days: 18 days
12 days
of pure sunshine
5 days
of showers or rain

What to pack: If you’re heading to Duluth in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Top FAQs

The hottest month of the year in Duluth is usually July, where temperatures tend to rise to around 25℃ (78℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Duluth is generally around January. The dry season often coincides with cooler weather, so you should check the temperatures in January first to make sure it’s still a good time to go.
The rainiest time of year in Duluth is generally around May, although the wetter season can sometimes extend a few months either side of May too.
If you want to get the most out of your time visiting Duluth, or if you're just afraid of the dark, the days in July are usually the longest between sunrise and sunset.

Duluth map