Weather on September 1
Duluth, MN
55 Years of Data
Avg High
72°F
Avg Low
56°F
Warmest
2015
77°F avg
Coldest
1974
52°F avg
About This Date
September 1st in Duluth, MN typically brings pleasant fall weather, with average highs around 72°F and lows near 56°F. Over 55 years of records, the warmest September 1st was in 2015 (77°F average), while the coldest was 1974 (52°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 20% of September 1st dates historically, with the wettest September 1st recording 3.81" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for September 1st in Duluth, MN? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 58° | 67° | — | — |
| 2024 | 73° | 56° | 64° | — | — |
| 2023 | 88° | 60° | 74° | — | — |
| 2022 | 90° | 60° | 75° | — | — |
| 2021 | 66° | 61° | 63° | — | — |
| 2020 | 70° | 43° | 56° | — | — |
| 2019 | 70° | 52° | 61° | — | — |
| 2018 | 83° | 63° | 73° | — | — |
| 2017 | 71° | 48° | 60° | 0.3" | — |
| 2016 | 68° | 54° | 61° | — | — |
| 2015warmest | 85° | 69° | 77° | — | — |
| 2014 | 74° | 58° | 66° | 1.73" | — |
| 2013 | 76° | 59° | 67° | — | — |
| 2012 | 71° | 53° | 62° | — | — |
| 2011 | 67° | 54° | 60° | 0.36" | — |
| 2010 | 73° | 60° | 67° | — | — |
| 2009 | 74° | 46° | 60° | — | — |
| 2008 | 84° | 67° | 75° | — | — |
| 2007 | 61° | 57° | 59° | — | — |
| 2006 | 69° | 54° | 61° | — | — |
| 2005 | 73° | 54° | 63° | — | — |
| 2004 | 57° | 53° | 55° | — | — |
| 2003 | 79° | 58° | 68° | — | — |
| 2002 | 68° | 57° | 63° | — | — |
| 2001 | 68° | 52° | 60° | — | — |
| 2000 | 73° | 55° | 64° | — | — |
| 1999 | 71° | 41° | 56° | — | — |
| 1998 | 75° | 64° | 70° | — | — |
| 1997 | 74° | 67° | 70° | — | — |
| 1996 | 80° | 56° | 68° | — | — |
| 1995 | 73° | 48° | 61° | — | — |
| 1994 | 64° | 45° | 54° | — | — |
| 1993 | 73° | 56° | 64° | — | — |
| 1992 | 61° | 49° | 55° | — | — |
| 1991 | 67° | 54° | 60° | — | — |
| 1990 | 79° | 65° | 72° | — | — |
| 1989 | 73° | 57° | 65° | — | — |
| 1988 | 72° | 60° | 66° | 1.3" | — |
| 1987 | 64° | 53° | 59° | — | — |
| 1986 | 69° | 55° | 62° | 1.17" | — |
| 1985 | 73° | 55° | 64° | — | — |
| 1984 | 56° | 50° | 53° | 0.58" | — |
| 1983 | 83° | 67° | 75° | — | — |
| 1982 | 79° | 58° | 68° | — | — |
| 1981 | 67° | 56° | 61° | — | — |
| 1980 | 63° | 60° | 61° | 0.99" | — |
| 1979 | 74° | 57° | 65° | 3.81" | — |
| 1978 | 76° | 55° | 65° | — | — |
| 1977 | 64° | 52° | 58° | 0.05" | — |
| 1976 | 63° | 48° | 55° | — | — |
| 1975 | 76° | 57° | 66° | — | — |
| 1974coldest | 61° | 44° | 52° | — | — |
| 1973 | 86° | 64° | 75° | 0.33" | — |
| 1972 | 69° | 55° | 62° | — | — |
| 1971 | 65° | 55° | 60° | 0.69" | — |
55 years of data from DULUTH HARBOR STN