Weather on December 18
Duluth, MN
55 Years of Data
Avg High
24°F
Avg Low
9°F
Warmest
1977
36°F avg
Coldest
1983
-16°F avg
About This Date
December 18th in Duluth, MN typically brings very cold winter weather, with average highs around 24°F and lows near 9°F. Over 55 years of records, the warmest December 18th was in 1977 (36°F average), while the coldest was 1983 (-16°F) — a 52°F range across recorded history. Precipitation has occurred on 16% of recorded December 18th dates, with snow falling 9% of the time. The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
Planning for December 18th in Duluth, MN? Bundle up with warm layers and protect extremities from the cold.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 41° | 5° | 23° | — | — |
| 2024 | 24° | 10° | 17° | — | — |
| 2023 | 27° | 13° | 20° | — | — |
| 2022 | 15° | 4° | 9° | — | — |
| 2021 | 22° | 11° | 16° | — | — |
| 2020 | 35° | 17° | 26° | — | — |
| 2019 | 6° | -13° | -3° | — | — |
| 2018 | 38° | 22° | 30° | — | — |
| 2017 | 36° | 21° | 28° | — | — |
| 2016 | 1° | -17° | -8° | — | — |
| 2015 | 19° | 7° | 13° | — | — |
| 2014 | 28° | 15° | 22° | — | — |
| 2013 | 27° | -1° | 13° | — | — |
| 2012 | 26° | 21° | 24° | — | — |
| 2011 | 42° | 10° | 26° | — | — |
| 2010 | 22° | 14° | 18° | — | — |
| 2009 | 26° | 5° | 16° | — | — |
| 2008 | 18° | -9° | 4° | 0.2" | 1" |
| 2007 | 32° | 18° | 25° | — | — |
| 2006 | 32° | 21° | 27° | — | — |
| 2005 | 13° | 1° | 7° | — | — |
| 2004 | 33° | -9° | 12° | — | — |
| 2003 | 26° | 12° | 19° | — | — |
| 2002 | 36° | 28° | 32° | — | — |
| 2001 | 39° | 29° | 34° | — | — |
| 2000 | 10° | 2° | 6° | — | — |
| 1999 | 19° | 5° | 12° | — | — |
| 1998 | 28° | 10° | 19° | — | — |
| 1997 | 35° | 27° | 31° | — | — |
| 1996 | 21° | 6° | 14° | — | — |
| 1995 | 30° | 21° | 26° | — | — |
| 1994 | 21° | 14° | 18° | — | — |
| 1993 | 34° | 31° | 32° | — | — |
| 1992 | 24° | 23° | 24° | 0.15" | — |
| 1991 | 6° | -7° | 0° | — | — |
| 1990 | 32° | 17° | 25° | — | — |
| 1989 | 7° | -8° | 0° | — | — |
| 1988 | 28° | 14° | 21° | — | — |
| 1987 | 28° | 20° | 24° | 0.46" | — |
| 1986 | 31° | 21° | 26° | — | — |
| 1985 | 7° | -6° | 1° | — | — |
| 1984 | 9° | -7° | 1° | — | — |
| 1983coldest | -10° | -22° | -16° | — | — |
| 1982 | 34° | 31° | 32° | 0.05" | — |
| 1981 | 14° | 3° | 9° | — | — |
| 1980 | 23° | -6° | 9° | — | — |
| 1979 | 30° | 17° | 24° | — | — |
| 1978 | 32° | 14° | 23° | — | — |
| 1977warmest | 38° | 34° | 36° | 0.1" | — |
| 1976 | 38° | 22° | 30° | — | — |
| 1975 | 6° | -12° | -3° | — | — |
| 1974 | 20° | 12° | 16° | 0.15" | 0.6" |
| 1973 | 26° | 6° | 16° | 0.08" | 0.5" |
| 1972 | 24° | 12° | 18° | 0.03" | 0.1" |
| 1971 | 13° | -7° | 3° | 0.05" | 0.2" |
55 years of data from DULUTH HARBOR STN