Duluth Average Yearly Weather

Generally the typical weather in Duluth brings average temperature at 10 degrees during the year.

Normally July is the hottest time of the year and January is when its the coolest month meaning that temperatures vary by 30. Anticipate that average temperatures are 7 throughout Spring, 23 in Summer (June, July and August) , 12 in Autumn and -4 during Winter.

MonthDegrees Celsius
January-5
February-3
March2
April7
May13
June19
July25
August24
September19
October12
November5
December-3


When is the best time to go to Duluth?

Our historical weather stats and averages lets you know the best time to visit Duluth

  • Typical Average Daily Temperature: 10
  • Typical Hottest Month: July
  • Typical Coldest Month: January
  • Average Spring Temperature: 7
  • Average Summer Temperature: 23
  • Average Autumn Temperature: 12
  • Average Winter Temperature: -4