Weather on May 21
Duluth, MN
55 Years of Data
Avg High
58°F
Avg Low
42°F
Warmest
1980
72°F avg
Coldest
1983
41°F avg
About This Date
May 21st in Duluth, MN typically brings cool spring weather, with average highs around 58°F and lows near 42°F. Over 55 years of records, the warmest May 21st was in 1980 (72°F average), while the coldest was 1983 (41°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 22% of May 21st dates historically, with the wettest May 21st recording 4.27" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 21st in Duluth, MN? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 48° | 41° | 45° | — | — |
| 2024 | 49° | 44° | 46° | 4.27" | — |
| 2023 | 68° | 41° | 55° | — | — |
| 2022 | 53° | 40° | 46° | — | — |
| 2021 | 62° | 53° | 58° | 0.13" | — |
| 2020 | 56° | 43° | 49° | — | — |
| 2019 | 50° | 41° | 46° | 0.03" | — |
| 2018 | 55° | 41° | 48° | — | — |
| 2017 | 49° | 39° | 44° | 0.43" | — |
| 2016 | 78° | 45° | 61° | — | — |
| 2015 | 69° | 45° | 57° | — | — |
| 2014 | 65° | 40° | 52° | — | — |
| 2013 | 46° | 38° | 42° | 2.92" | — |
| 2012 | 67° | 41° | 54° | — | — |
| 2011 | 47° | 42° | 44° | 0.63" | — |
| 2010 | 54° | 46° | 50° | — | — |
| 2009 | 72° | 54° | 63° | 0.05" | — |
| 2008 | 66° | 34° | 50° | — | — |
| 2007 | 45° | 39° | 42° | 0.89" | — |
| 2006 | 61° | 41° | 51° | — | — |
| 2005 | 48° | 43° | 45° | — | — |
| 2004 | 69° | 21° | 45° | — | — |
| 2003 | 61° | 37° | 49° | — | — |
| 2002 | 59° | 35° | 47° | — | — |
| 2001 | 52° | 44° | 48° | — | — |
| 2000 | 52° | 41° | 46° | — | — |
| 1999 | 50° | 40° | 45° | — | — |
| 1998 | 76° | 44° | 60° | — | — |
| 1997 | 53° | 40° | 46° | — | — |
| 1996 | 69° | 52° | 60° | — | — |
| 1995 | 61° | 44° | 52° | — | — |
| 1994 | 72° | 47° | 59° | — | — |
| 1993 | 44° | 39° | 42° | — | — |
| 1992 | 61° | 49° | 55° | — | — |
| 1991 | 54° | 46° | 50° | — | — |
| 1990 | 45° | 38° | 41° | — | — |
| 1989 | 75° | 54° | 64° | — | — |
| 1988 | 53° | 46° | 50° | — | — |
| 1987 | 47° | 42° | 44° | 1.35" | — |
| 1986 | 54° | 41° | 47° | — | — |
| 1985 | 60° | 41° | 51° | — | — |
| 1984 | 48° | 39° | 44° | 1.85" | — |
| 1983coldest | 45° | 38° | 41° | — | — |
| 1982 | 45° | 40° | 42° | — | — |
| 1981 | 80° | 47° | 63° | — | — |
| 1980warmest | 83° | 62° | 72° | — | — |
| 1979 | 53° | 41° | 47° | — | — |
| 1978 | 55° | 42° | 49° | — | — |
| 1977 | 62° | 46° | 54° | 0.56" | — |
| 1976 | 59° | 43° | 51° | — | — |
| 1975 | 64° | 45° | 54° | — | — |
| 1974 | 58° | 39° | 48° | 2.31" | — |
| 1973 | 48° | 42° | 45° | — | — |
| 1972 | 49° | 38° | 43° | — | — |
| 1971 | 52° | 37° | 44° | — | — |
55 years of data from DULUTH HARBOR STN