Current Weather and Forecast in Duluth, MN
Minnesota, United States 🇺🇸
Live conditions are temporarily unavailable.
Explore Duluth's typical temperatures and climate below - Live data returns shortly.
About the weather in Duluth
Duluth has a humid continental climate. July is the warmest month, with average highs of 78°, and January the coldest, when nights fall to around 9°. August brings the most rain, on about 10 days, while July is the sunniest, with 12.6 hours of sunshine a day. Over a whole year it rains on roughly 113 days.
Duluth climate guide: monthly averages, seasons and the best time to visit
Common questions
What is the coldest month in Duluth?
January, with highs of 22°F (-6°C) and lows near 9°F (-13°C). The coldest day in the 2015-2024 record fell to -30°F (-34°C).
How humid does Duluth get?
Relative humidity averages 73% across the year, which reads as fairly humid. The most comfortable stretch falls in the drier half of the year.
Is Duluth hot in summer?
July averages 78°F (25°C). Summers here stay temperate rather than hot.
Does it freeze in Duluth?
Average overnight lows sit at or below 0°C in 6 months of the year, November through April.
What is the hottest month in Duluth?
July, averaging 78°F (25°C) by day and 63°F (17°C) overnight. The hottest single day in our 2015-2024 record for this location reached 97°F (36°C).
What is the best time to visit Duluth?
Aim for May to September if you get the choice: these are the warmest and brightest weeks of the year, and highs average 71°F (22°C) against roughly 11 wet days a month. For the same question asked the other way round, see where else is warm in May.
Is there snow in Duluth?
Yes - about 27 days a year carry measurable snowfall, concentrated October through May.
When does it rain most in Duluth?
August, at 3.8 inches (97 mm) over about 10 days. January is the driest month, at 24 mm (1.0 in).