Weather on December 21
Duluth, MN
55 Years of Data
About This Date
December 21st in Duluth, MN typically brings very cold winter weather, with average highs around 25°F and lows near 11°F. Over 55 years of records, the warmest December 21st was in 2007 (35°F average), while the coldest was 1989 (-15°F) — a 50°F range across recorded history. Precipitation has occurred on 25% of recorded December 21st dates, with snow falling 22% of the time (heaviest snowfall: 4"). The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Duluth, MN? Bundle up with warm layers and protect extremities from the cold. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 18° | 0° | 9° | — | — |
| 2024 | 18° | -3° | 8° | — | — |
| 2023 | 37° | 32° | 35° | — | — |
| 2022 | 0° | -12° | -6° | 0.51" | 2" |
| 2021 | 16° | 6° | 11° | 0.84" | 2" |
| 2020 | 34° | 27° | 30° | 0.69" | 1" |
| 2019 | 37° | 19° | 28° | — | — |
| 2018 | 23° | 17° | 20° | — | — |
| 2017 | 24° | 16° | 20° | 0.08" | 1" |
| 2016 | 35° | 21° | 28° | — | — |
| 2015 | 29° | 25° | 27° | — | — |
| 2014 | 36° | 32° | 34° | — | — |
| 2013 | 24° | 5° | 15° | 0.08" | 0.3" |
| 2012 | 34° | 9° | 21° | — | — |
| 2011 | 35° | 25° | 30° | — | — |
| 2010 | 31° | 24° | 27° | 0.64" | 4" |
| 2009 | 27° | 22° | 24° | 0.05" | 0.2" |
| 2008 | 13° | -6° | 4° | — | — |
| 2007warmest | 37° | 32° | 35° | — | — |
| 2006 | 35° | 24° | 30° | — | — |
| 2005 | 20° | 13° | 16° | — | — |
| 2004 | 24° | 1° | 13° | 0.05" | 0.2" |
| 2003 | 32° | 17° | 25° | — | — |
| 2002 | 30° | 22° | 26° | — | — |
| 2001 | 34° | 17° | 25° | — | — |
| 2000 | 14° | 9° | 11° | — | — |
| 1999 | 7° | -9° | -1° | — | — |
| 1998 | 19° | -3° | 8° | — | — |
| 1997 | 29° | 18° | 23° | — | — |
| 1996 | 19° | -5° | 7° | — | — |
| 1995 | 25° | 5° | 15° | — | — |
| 1994 | 38° | 17° | 27° | — | — |
| 1993 | 27° | 17° | 22° | — | — |
| 1992 | 21° | 10° | 16° | 0.03" | — |
| 1991 | 36° | 19° | 27° | — | — |
| 1990 | 30° | 0° | 15° | 0.89" | — |
| 1989coldest | -6° | -24° | -15° | — | — |
| 1988 | 18° | 17° | 17° | — | — |
| 1987 | 32° | 19° | 26° | — | — |
| 1986 | 32° | 14° | 23° | — | — |
| 1985 | 16° | -8° | 4° | — | — |
| 1984 | 28° | 6° | 17° | — | — |
| 1983 | 17° | -1° | 8° | 0.64" | 2.5" |
| 1982 | 28° | 10° | 19° | — | — |
| 1981 | 36° | 27° | 31° | 0.03" | 0.1" |
| 1980 | 15° | 1° | 8° | 0.08" | — |
| 1979 | 37° | 26° | 32° | — | — |
| 1978 | 20° | 12° | 16° | — | 1" |
| 1977 | 30° | 14° | 22° | — | — |
| 1976 | 14° | -10° | 2° | — | — |
| 1975 | 25° | 3° | 14° | — | — |
| 1974 | 21° | 17° | 19° | — | — |
| 1973 | 19° | -7° | 6° | — | — |
| 1972 | 26° | 17° | 22° | 0.1" | 0.4" |
| 1971 | 26° | -5° | 11° | — | — |
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.