Weather on March 15
Duluth, MN
55 Years of Data
Avg High
36°F
Avg Low
21°F
Warmest
2015
48°F avg
Coldest
1997
8°F avg
About This Date
March 15th in Duluth, MN typically brings cold spring weather, with average highs around 36°F and lows near 21°F. Over 56 years of records, the warmest March 15th was in 2015 (48°F average), while the coldest was 1997 (8°F) — a 40°F range across recorded history. Precipitation has occurred on 21% of recorded March 15th dates, with snow falling 13% of the time (heaviest snowfall: 3"). The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for March 15th in Duluth, MN? Bundle up with warm layers and protect extremities from the cold.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 30° | 15° | 23° | — | — |
| 2025 | 43° | 23° | 33° | 0.84" | — |
| 2024 | 53° | 22° | 37° | — | — |
| 2023 | 38° | 16° | 27° | — | — |
| 2022 | 51° | 23° | 37° | — | — |
| 2021 | 32° | 27° | 29° | — | — |
| 2020 | 32° | 21° | 27° | — | — |
| 2019 | 35° | 26° | 31° | — | — |
| 2018 | 33° | 15° | 24° | — | — |
| 2017 | 38° | 9° | 23° | — | — |
| 2016 | 36° | 34° | 35° | 2.51" | — |
| 2015warmest | 65° | 31° | 48° | — | — |
| 2014 | — | 14° | — | — | — |
| 2013 | — | 18° | — | 0.43" | 3" |
| 2012 | 46° | 35° | 41° | — | — |
| 2011 | 45° | 31° | 38° | 0.08" | — |
| 2010 | 53° | 37° | 45° | — | — |
| 2009 | 42° | 31° | 36° | — | — |
| 2008 | 30° | 22° | 26° | — | — |
| 2007 | 27° | 20° | 23° | 0.15" | 2.5" |
| 2006 | 33° | 14° | 24° | — | — |
| 2005 | 31° | 17° | 24° | — | — |
| 2004 | 31° | 19° | 25° | — | — |
| 2003 | 34° | 22° | 28° | — | — |
| 2002 | 30° | 19° | 25° | — | — |
| 2001 | 47° | 27° | 37° | — | — |
| 2000 | 35° | 23° | 29° | — | — |
| 1999 | 34° | 14° | 24° | — | — |
| 1998 | 27° | 17° | 22° | — | — |
| 1997coldest | 20° | -4° | 8° | — | — |
| 1996 | 36° | 30° | 33° | — | — |
| 1995 | 52° | 35° | 43° | — | — |
| 1994 | 34° | 17° | 25° | — | — |
| 1993 | 28° | 13° | 20° | — | — |
| 1992 | 25° | 11° | 18° | — | — |
| 1991 | 32° | 14° | 23° | — | — |
| 1990 | 39° | 33° | 36° | — | — |
| 1989 | 24° | 3° | 14° | — | — |
| 1988 | 27° | 13° | 20° | — | — |
| 1987 | 35° | 26° | 31° | — | — |
| 1986 | 40° | 22° | 31° | — | — |
| 1985 | 31° | 24° | 27° | — | — |
| 1984 | 39° | 14° | 27° | — | — |
| 1983 | 31° | 24° | 27° | 0.03" | 0.1" |
| 1982 | 35° | 27° | 31° | 0.13" | 0.5" |
| 1981 | 48° | 31° | 39° | — | — |
| 1980 | 34° | 22° | 28° | — | — |
| 1979 | 23° | -1° | 11° | — | — |
| 1978 | 34° | 20° | 27° | — | — |
| 1977 | 41° | 32° | 37° | — | — |
| 1976 | 32° | 7° | 19° | 0.05" | — |
| 1975 | 36° | 12° | 24° | — | — |
| 1974 | 35° | 29° | 32° | 0.05" | 0.3" |
| 1973 | 40° | 33° | 36° | 0.05" | — |
| 1972 | 30° | 19° | 25° | 0.56" | 1" |
| 1971 | 32° | 19° | 26° | 0.76" | 3" |
56 years of data from DULUTH HARBOR STN