Historical Weather in Duluth, MN
See 55+ years of weather history for any date in Duluth going back to 1970.
Part of Minnesota weather history
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Today in Duluth Weather HistorySee records, averages, and 55+ years of data for today's date
→Monthly Climate Averages
Historical temperature and precipitation averages for Duluth, MN, based on 55+ years of weather data.
Warmest MonthJulyAvg High: 76°F / Low: 57°F
Coldest MonthJanuaryAvg High: 20°F / Low: 3°F
Jan
20°/ 3°
💧 2.7"
❄️ 1.5"
Feb
25°/ 7°
💧 3.0"
❄️ 1.4"
Mar
35°/ 19°
💧 4.9"
❄️ 1.7"
Apr
47°/ 30°
💧 6.1"
❄️ 1.6"
May
59°/ 41°
💧 7.0"
❄️ 1.1"
Jun
69°/ 49°
💧 8.9"
Jul
76°/ 57°
💧 9.0"
Aug
74°/ 56°
💧 9.2"
Sep
66°/ 48°
💧 8.6"
❄️ 0.6"
Oct
53°/ 37°
💧 6.6"
❄️ 1.1"
Nov
37°/ 24°
💧 5.3"
❄️ 1.7"
Dec
25°/ 10°
💧 3.6"
❄️ 1.5"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Duluth Temperature Records
- Record High: The hottest temperature ever recorded in Duluth, MN is 101°F, set on July 15, 2006.
- Record Low: The coldest temperature ever recorded in Duluth, MN is -39°F, set on January 15, 1972.
- Data Coverage: Based on 57 years of data from NOAA weather station: SUPERIOR.
All-Time Record High
101°F
July 15, 2006
All-Time Record Low
-39°F
January 15, 1972
Monthly Temperature Records in Duluth
| Month | Record High | Record Low |
|---|---|---|
| January | 57°F(2012) | -39°F(1972) |
| February | 59°F(1976) | -39°F(1996) |
| March | 78°F(2007) | -29°F(1989) |
| April | 85°F(2003) | -5°F(1975) |
| May | 95°F(2016) | 19°F(1989) |
| June | 98°F(1995) | 27°F(1972) |
| July | 101°F(2006) | 35°F(1988) |
| August | 100°F(2006) | 32°F(1986) |
| September | 97°F(1976) | 23°F(1974) |
| October | 89°F(2003) | 8°F(1976) |
| November | 79°F(2020) | -19°F(1976) |
| December | 57°F(2023) | -34°F(1983) |
Duluth Snow RecordsSee the top 10 snowiest days ever recorded
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