Weather on March 31
Duluth, MN
55 Years of Data
Avg High
40°F
Avg Low
27°F
Warmest
2010
57°F avg
Coldest
1975
18°F avg
About This Date
March 31st in Duluth, MN typically brings chilly spring weather, with average highs around 40°F and lows near 27°F. Over 56 years of records, the warmest March 31st was in 2010 (57°F average), while the coldest was 1975 (18°F) — a 39°F range across recorded history. Precipitation has occurred on 29% of recorded March 31st dates, with snow falling 16% of the time (heaviest snowfall: 3.5"). The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
Planning for March 31st in Duluth, MN? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 40° | 31° | 35° | — | — |
| 2025 | 44° | 24° | 34° | — | — |
| 2024 | 48° | 35° | 42° | — | — |
| 2023 | 36° | 10° | 23° | 0.15" | 1" |
| 2022 | 36° | 24° | 30° | — | — |
| 2021 | 31° | 17° | 24° | — | — |
| 2020 | 36° | 27° | 31° | — | — |
| 2019 | 40° | 23° | 31° | — | — |
| 2018 | 24° | 12° | 18° | 0.36" | 1.5" |
| 2017 | 43° | 34° | 38° | — | — |
| 2016 | 40° | 34° | 37° | 0.05" | — |
| 2015 | 57° | 30° | 44° | 0.03" | — |
| 2014 | 35° | 31° | 33° | 1.14" | — |
| 2013 | 39° | 19° | 29° | — | — |
| 2012 | 49° | 36° | 42° | — | — |
| 2011 | 37° | 27° | 32° | — | — |
| 2010warmest | 74° | 40° | 57° | — | — |
| 2009 | 34° | 27° | 30° | 1.32" | 3" |
| 2008 | 51° | 29° | 40° | 0.36" | 2" |
| 2007 | 35° | 32° | 34° | 1.52" | — |
| 2006 | 42° | 37° | 40° | 0.97" | — |
| 2005 | 53° | 38° | 45° | 0.03" | — |
| 2004 | 41° | 25° | 33° | — | — |
| 2003 | 39° | 22° | 30° | — | — |
| 2002 | 39° | 22° | 30° | — | — |
| 2001 | 35° | 33° | 34° | — | — |
| 2000 | 47° | 30° | 38° | — | — |
| 1999 | 45° | 34° | 39° | — | — |
| 1998 | 39° | 31° | 35° | — | — |
| 1997 | 27° | 13° | 20° | — | — |
| 1996 | 35° | 20° | 27° | — | — |
| 1995 | 39° | 27° | 33° | — | — |
| 1994 | 52° | 34° | 43° | — | — |
| 1993 | 31° | 20° | 25° | — | — |
| 1992 | 40° | 22° | 31° | — | — |
| 1991 | 41° | 26° | 34° | — | — |
| 1990 | 54° | 34° | 44° | — | — |
| 1989 | 37° | 24° | 31° | — | — |
| 1988 | 34° | 27° | 30° | — | — |
| 1987 | 35° | 20° | 27° | 0.3" | 2" |
| 1986 | 65° | 35° | 50° | — | — |
| 1985 | 30° | 29° | 29° | 0.46" | 3.5" |
| 1984 | 41° | 26° | 34° | — | — |
| 1983 | 37° | 33° | 35° | 0.51" | 2" |
| 1982 | 45° | 31° | 38° | — | — |
| 1981 | 36° | 32° | 34° | 0.03" | — |
| 1980 | 42° | 31° | 36° | — | — |
| 1979 | 36° | 27° | 31° | — | — |
| 1978 | 42° | 33° | 38° | — | — |
| 1977 | 38° | 24° | 31° | — | — |
| 1976 | 39° | 33° | 36° | — | — |
| 1975coldest | 25° | 12° | 18° | — | — |
| 1974 | 32° | 26° | 29° | 0.03" | 0.1" |
| 1973 | 40° | 29° | 34° | — | — |
| 1972 | 36° | 27° | 31° | 0.05" | 0.1" |
| 1971 | 35° | 30° | 33° | — | — |
56 years of data from DULUTH HARBOR STN