Weather on December 20
Ann Arbor, MI
55 Years of Data
About This Date
December 20th in Ann Arbor, MI typically brings cold winter weather, with average highs around 34°F and lows near 20°F. Over 55 years of records, the warmest December 20th was in 1988 (48°F average), while the coldest was 2004 (7°F) — a 41°F range across recorded history. Precipitation has occurred on 51% of recorded December 20th dates, with snow falling 25% of the time (heaviest snowfall: 6"). The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Ann Arbor, MI? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 39° | 18° | 28° | — | — |
| 2024 | 34° | 24° | 29° | 0.15" | — |
| 2023 | 41° | 25° | 33° | — | — |
| 2022 | 34° | 17° | 26° | — | — |
| 2021 | 39° | 25° | 32° | — | — |
| 2020 | 38° | 27° | 33° | — | — |
| 2019 | 36° | 12° | 24° | — | — |
| 2018 | 43° | 29° | 36° | 0.36" | — |
| 2017 | 36° | 22° | 29° | — | — |
| 2016 | 29° | -5° | 12° | — | — |
| 2015 | 43° | 15° | 29° | — | — |
| 2014 | 30° | 22° | 26° | — | — |
| 2013 | 41° | 34° | 37° | 0.74" | — |
| 2012 | 42° | 28° | 35° | 0.13" | — |
| 2011 | 52° | 29° | 40° | — | — |
| 2010 | 26° | 18° | 22° | — | — |
| 2009 | 33° | 18° | 25° | 0.13" | 0.5" |
| 2008 | 28° | 18° | 23° | 0.03" | 1.2" |
| 2007 | 34° | 10° | 22° | — | — |
| 2006 | 44° | 17° | 31° | — | — |
| 2005 | 25° | 7° | 16° | — | — |
| 2004coldest | 17° | -4° | 7° | — | — |
| 2003 | 28° | 16° | 22° | — | — |
| 2002 | 41° | 31° | 36° | 0.33" | — |
| 2001 | 39° | 24° | 32° | — | — |
| 2000 | 18° | -2° | 8° | — | — |
| 1999 | 43° | 19° | 31° | 0.56" | — |
| 1998 | 34° | 24° | 29° | 0.05" | — |
| 1997 | 41° | 31° | 36° | 0.03" | — |
| 1996 | 18° | 5° | 11° | 0.05" | 0.2" |
| 1995 | 26° | 13° | 19° | 0.08" | 0.5" |
| 1994 | 42° | 27° | 34° | — | — |
| 1993 | 35° | 32° | 34° | 0.28" | 0.5" |
| 1992 | 40° | 23° | 31° | 0.33" | — |
| 1991 | 35° | 18° | 26° | 0.03" | — |
| 1990 | 39° | 27° | 33° | — | — |
| 1989 | 17° | 7° | 12° | 0.05" | 0.4" |
| 1988warmest | 54° | 42° | 48° | 0.13" | — |
| 1987 | 45° | 32° | 38° | 1.52" | — |
| 1986 | 33° | 30° | 32° | — | — |
| 1985 | 21° | 3° | 12° | 0.08" | 0.3" |
| 1984 | 35° | 24° | 30° | — | — |
| 1983 | 21° | 7° | 14° | — | — |
| 1982 | 37° | 29° | 33° | 0.1" | 0.4" |
| 1981 | 25° | 18° | 21° | 0.03" | 0.2" |
| 1980 | 19° | 2° | 10° | — | — |
| 1979 | 34° | 25° | 29° | — | — |
| 1978 | 32° | 22° | 27° | 0.43" | 0.1" |
| 1977 | 37° | 28° | 33° | 1.17" | 1.6" |
| 1976 | 47° | 20° | 33° | 0.15" | 1" |
| 1975 | 33° | 19° | 26° | 0.89" | 3.5" |
| 1974 | 33° | 20° | 26° | — | — |
| 1973 | 26° | 18° | 22° | 1.52" | 6" |
| 1972 | 37° | 33° | 35° | 0.13" | — |
| 1971 | 36° | 32° | 34° | 0.3" | — |