Weather on May 21
Duluth, MN
55 Years of Data
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 56 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 21% 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 |
|---|---|---|---|---|---|
| 2026 | 46° | 38° | 42° | — | — |
| 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° | — | — |
Duluth, MN Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Duluth, MN Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Duluth, MN Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Duluth, MN
Duluth, MN has no months that meet our "pleasant" threshold — every season has tradeoffs.