Weather on August 31
Duluth, MN
55 Years of Data
About This Date
August 31st in Duluth, MN typically brings pleasant summer weather, with average highs around 70°F and lows near 55°F. Over 55 years of records, the warmest August 31st was in 2010 (76°F average), while the coldest was 2002 (47°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 35% of August 31st dates historically, with the wettest August 31st recording 2.79" of rain. The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for August 31st in Duluth, MN? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 62° | 70° | 1.22" | — |
| 2024 | 86° | 56° | 71° | — | — |
| 2023 | 68° | 54° | 61° | — | — |
| 2022 | 84° | 65° | 74° | — | — |
| 2021 | 66° | 54° | 60° | — | — |
| 2020 | 72° | 56° | 64° | 1.47" | — |
| 2019 | 72° | 47° | 59° | — | — |
| 2018 | 80° | 60° | 70° | 2.79" | — |
| 2017 | 64° | 56° | 60° | — | — |
| 2016 | 75° | 59° | 67° | — | — |
| 2015 | 84° | 63° | 73° | — | — |
| 2014 | 65° | 60° | 62° | 0.71" | — |
| 2013 | 86° | 50° | 68° | 0.36" | — |
| 2012 | 80° | 56° | 68° | — | — |
| 2011 | 59° | 54° | 56° | 0.71" | — |
| 2010warmest | 83° | 69° | 76° | 0.84" | — |
| 2009 | 73° | 46° | 60° | — | — |
| 2008 | 88° | 60° | 74° | — | — |
| 2007 | 68° | 54° | 61° | — | — |
| 2006 | 67° | 60° | 63° | — | — |
| 2005 | 67° | 50° | 58° | 0.1" | — |
| 2004 | 71° | 46° | 59° | — | — |
| 2003 | 76° | 47° | 61° | — | — |
| 2002coldest | 55° | 40° | 47° | — | — |
| 2001 | 66° | 49° | 57° | — | — |
| 2000 | 76° | 58° | 67° | 1.27" | — |
| 1999 | 66° | 60° | 63° | — | — |
| 1998 | 78° | 58° | 68° | — | — |
| 1997 | 69° | 60° | 65° | — | — |
| 1996 | 70° | 56° | 63° | — | — |
| 1995 | 80° | 59° | 70° | — | — |
| 1994 | 63° | 46° | 54° | — | — |
| 1993 | 69° | 40° | 54° | — | — |
| 1992 | 64° | 49° | 56° | — | — |
| 1991 | 64° | 56° | 60° | — | — |
| 1990 | 79° | 64° | 71° | — | — |
| 1989 | 64° | 57° | 61° | — | — |
| 1988 | 62° | 55° | 59° | — | — |
| 1987 | 66° | 48° | 57° | — | — |
| 1986 | 76° | 60° | 68° | 0.46" | — |
| 1985 | 66° | 48° | 57° | 0.43" | — |
| 1984 | 64° | 53° | 59° | — | — |
| 1983 | 78° | 64° | 71° | — | — |
| 1982 | 59° | 57° | 58° | 0.58" | — |
| 1981 | 67° | 63° | 65° | 0.03" | — |
| 1980 | 65° | 57° | 61° | 0.13" | — |
| 1979 | 63° | 56° | 59° | — | — |
| 1978 | 67° | 55° | 61° | — | — |
| 1977 | 66° | 57° | 62° | — | — |
| 1976 | 68° | 54° | 61° | 0.03" | — |
| 1975 | 63° | 54° | 58° | 0.41" | — |
| 1974 | 60° | 48° | 54° | — | — |
| 1973 | 68° | 61° | 64° | 1.22" | — |
| 1972 | 75° | 59° | 67° | 0.08" | — |
| 1971 | 57° | 54° | 55° | 0.56" | — |
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.