average temperatures duluth minnesota
Average Temperatures for Duluth. Duluth's coldest month is January when the average temperature overnight is -1.2Â°F. In July, the warmest month, the average day time temperature rises to 76.3Â°F. Average Rainfall for Duluth. The driest month in Duluth is February with 0.83 inches of precipitation, and with 4.25 inches June is the wettest month.
Summer high temperatures in Minnesota average in the mid-80s F (30 Â°C) in the south to the upper-70s F (25 Â°C) in the north, with temperatures as hot as 114 Â°F (46 Â°C) possible. The growing season in Minnesota varies from 90 days per year in the Iron Range to 160 days in southeast Minnesota.