Weather on May 15
Duluth, MN
55 Years of Data
Avg High
56°F
Avg Low
41°F
Warmest
2013
66°F avg
Coldest
1997
39°F avg
About This Date
May 15th in Duluth, MN typically brings cool spring weather, with average highs around 56°F and lows near 41°F. Over 55 years of records, the warmest May 15th was in 2013 (66°F average), while the coldest was 1997 (39°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 18% of May 15th dates historically, with the wettest May 15th recording 2.06" of rain. The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Duluth, MN? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 51° | 43° | 47° | 0.58" | — |
| 2024 | 49° | 43° | 46° | — | — |
| 2023 | 82° | 35° | 59° | — | — |
| 2022 | 74° | 50° | 62° | — | — |
| 2021 | 56° | 48° | 52° | — | — |
| 2020 | 60° | 43° | 51° | — | — |
| 2019 | 56° | 40° | 48° | — | — |
| 2018 | 62° | 40° | 51° | — | — |
| 2017 | 46° | 42° | 44° | 0.89" | — |
| 2016 | 63° | 31° | 47° | — | — |
| 2015 | 47° | 37° | 42° | 0.18" | — |
| 2014 | 56° | 35° | 45° | — | — |
| 2013warmest | 79° | 54° | 66° | — | — |
| 2012 | 68° | 51° | 60° | — | — |
| 2011 | 48° | 40° | 44° | — | — |
| 2010 | 62° | 38° | 50° | — | — |
| 2009 | 51° | 38° | 44° | 1.22" | — |
| 2008 | 72° | 43° | 57° | — | — |
| 2007 | 56° | 39° | 47° | 0.86" | — |
| 2006 | 65° | 43° | 54° | 0.08" | — |
| 2005 | 51° | 39° | 45° | — | — |
| 2004 | 50° | 35° | 43° | — | — |
| 2003 | 54° | 38° | 46° | — | — |
| 2002 | 46° | 38° | 42° | — | — |
| 2001 | 51° | 42° | 47° | — | — |
| 2000 | 58° | 39° | 48° | — | — |
| 1999 | 49° | 39° | 44° | — | — |
| 1998 | 58° | 47° | 52° | — | — |
| 1997coldest | 42° | 36° | 39° | — | — |
| 1996 | 52° | 34° | 43° | — | — |
| 1995 | 59° | 45° | 52° | — | — |
| 1994 | 58° | 41° | 49° | — | — |
| 1993 | 51° | 39° | 45° | — | — |
| 1992 | 56° | 38° | 47° | 0.56" | — |
| 1991 | 63° | 40° | 51° | — | — |
| 1990 | 42° | 38° | 40° | — | — |
| 1989 | 61° | 41° | 51° | — | — |
| 1988 | 60° | 50° | 55° | — | — |
| 1987 | 50° | 44° | 47° | — | — |
| 1986 | 51° | 40° | 45° | — | — |
| 1985 | 46° | 41° | 44° | 0.97" | — |
| 1984 | 47° | 38° | 42° | — | — |
| 1983 | 42° | 38° | 40° | — | — |
| 1982 | 49° | 41° | 45° | 0.56" | — |
| 1981 | 60° | 32° | 46° | — | — |
| 1980 | 70° | 42° | 56° | — | — |
| 1979 | 47° | 37° | 42° | — | — |
| 1978 | 47° | 40° | 43° | — | — |
| 1977 | 52° | 46° | 49° | 2.06" | — |
| 1976 | 60° | 42° | 51° | — | — |
| 1975 | 59° | 42° | 51° | — | — |
| 1974 | 54° | 39° | 46° | — | — |
| 1973 | 71° | 43° | 57° | — | — |
| 1972 | 58° | 31° | 44° | — | — |
| 1971 | 69° | 43° | 56° | — | — |
55 years of data from DULUTH HARBOR STN