Weather on December 20
Duluth, MN
55 Years of Data
Avg High
26°F
Avg Low
11°F
Warmest
2006
34°F avg
Coldest
1989
-17°F avg
About This Date
December 20th in Duluth, MN typically brings very cold winter weather, with average highs around 26°F and lows near 11°F. Over 55 years of records, the warmest December 20th was in 2006 (34°F average), while the coldest was 1989 (-17°F) — a 51°F range across recorded history. Precipitation has occurred on 22% of recorded December 20th dates, with snow falling 20% of the time (heaviest snowfall: 4"). The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Duluth, MN? Bundle up with warm layers and protect extremities from the cold. Check road conditions if traveling, as snow is possible.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 23° | 5° | 14° | — | — |
| 2024 | 22° | 6° | 14° | — | — |
| 2023 | 34° | 29° | 31° | — | — |
| 2022 | 10° | -8° | 1° | — | — |
| 2021 | 29° | 6° | 17° | — | — |
| 2020 | 36° | 20° | 28° | 0.03" | 1" |
| 2019 | 30° | 19° | 25° | — | — |
| 2018 | 36° | 22° | 29° | 0.64" | — |
| 2017 | 16° | 7° | 11° | 0.15" | 2" |
| 2016 | 40° | 24° | 32° | — | — |
| 2015 | 31° | 23° | 27° | — | — |
| 2014 | 33° | 27° | 30° | — | — |
| 2013 | 20° | 6° | 13° | 0.05" | 0.2" |
| 2012 | 34° | 13° | 23° | — | — |
| 2011 | 34° | 22° | 28° | — | — |
| 2010 | 24° | 2° | 13° | — | — |
| 2009 | 25° | 14° | 19° | — | — |
| 2008 | 20° | 5° | 12° | 0.38" | 3" |
| 2007 | 34° | 26° | 30° | — | — |
| 2006warmest | 42° | 26° | 34° | — | — |
| 2005 | 22° | -2° | 10° | — | — |
| 2004 | 23° | 9° | 16° | 0.33" | 1.8" |
| 2003 | 27° | 7° | 17° | — | — |
| 2002 | 35° | 24° | 30° | — | — |
| 2001 | 34° | 20° | 27° | — | — |
| 2000 | 12° | 1° | 7° | — | — |
| 1999 | 30° | 5° | 18° | — | — |
| 1998 | 13° | 3° | 8° | — | — |
| 1997 | 35° | 22° | 28° | — | — |
| 1996 | 19° | -5° | 7° | — | — |
| 1995 | 26° | 5° | 16° | — | — |
| 1994 | 38° | 17° | 27° | — | — |
| 1993 | 27° | 17° | 22° | — | — |
| 1992 | 24° | -7° | 9° | 0.05" | — |
| 1991 | 36° | 20° | 28° | — | — |
| 1990 | 33° | 22° | 27° | — | — |
| 1989coldest | -13° | -22° | -17° | — | — |
| 1988 | 32° | 16° | 24° | — | — |
| 1987 | 29° | 19° | 24° | — | — |
| 1986 | 29° | 7° | 18° | — | — |
| 1985 | 9° | -3° | 3° | — | — |
| 1984 | 26° | 14° | 20° | — | — |
| 1983 | 10° | -22° | -6° | — | — |
| 1982 | 24° | 14° | 19° | — | — |
| 1981 | 27° | 5° | 16° | 0.13" | 0.5" |
| 1980 | 11° | -10° | 1° | — | — |
| 1979 | 38° | 23° | 30° | — | — |
| 1978 | 32° | 19° | 26° | — | 4" |
| 1977 | 29° | 23° | 26° | 0.15" | 0.6" |
| 1976 | 15° | -5° | 5° | — | — |
| 1975 | 23° | 4° | 13° | 0.05" | 0.2" |
| 1974 | 24° | 18° | 21° | 0.05" | 0.2" |
| 1973 | 13° | -2° | 5° | — | — |
| 1972 | 28° | 21° | 25° | 0.15" | 0.6" |
| 1971 | 28° | 8° | 18° | — | — |
55 years of data from DULUTH HARBOR STN