Weather on December 18
Ann Arbor, MI
55 Years of Data
Avg High
33°F
Avg Low
20°F
Warmest
2002
40°F avg
Coldest
1985
7°F avg
About This Date
December 18th in Ann Arbor, MI typically brings cold winter weather, with average highs around 33°F and lows near 20°F. Over 55 years of records, the warmest December 18th was in 2002 (40°F average), while the coldest was 1985 (7°F) — a 33°F range across recorded history. Precipitation has occurred on 44% of recorded December 18th dates, with snow falling 18% of the time (heaviest snowfall: 1.6"). The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for December 18th in Ann Arbor, MI? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 53° | 23° | 38° | 0.66" | — |
| 2024 | 36° | 31° | 34° | — | — |
| 2023 | 41° | 29° | 35° | 0.1" | — |
| 2022 | 27° | 21° | 24° | — | — |
| 2021 | 34° | 31° | 33° | 0.71" | — |
| 2020 | 31° | 18° | 25° | — | — |
| 2019 | 28° | 3° | 16° | — | — |
| 2018 | 35° | 16° | 26° | — | — |
| 2017 | 40° | 26° | 33° | 0.05" | — |
| 2016 | 23° | 3° | 13° | — | — |
| 2015 | 33° | 25° | 29° | — | — |
| 2014 | 32° | 28° | 30° | — | — |
| 2013 | 29° | 20° | 25° | — | — |
| 2012 | 42° | 29° | 35° | — | — |
| 2011 | 32° | 25° | 28° | 0.1" | 0.4" |
| 2010 | 28° | 9° | 18° | — | — |
| 2009 | 32° | 14° | 23° | — | — |
| 2008 | 29° | 20° | 24° | — | — |
| 2007 | 32° | 13° | 23° | 0.03" | — |
| 2006 | 44° | 27° | 36° | 0.03" | — |
| 2005 | 22° | -1° | 11° | — | — |
| 2004 | 35° | 20° | 27° | 0.05" | — |
| 2003 | 31° | 25° | 28° | — | — |
| 2002warmest | 48° | 32° | 40° | 0.46" | — |
| 2001 | 45° | 29° | 37° | — | — |
| 2000 | 16° | -1° | 8° | 0.23" | — |
| 1999 | 30° | 14° | 22° | — | — |
| 1998 | 44° | 14° | 29° | — | — |
| 1997 | 40° | 24° | 32° | — | — |
| 1996 | 33° | 15° | 24° | 0.15" | 0.6" |
| 1995 | 30° | 23° | 27° | — | — |
| 1994 | 38° | 32° | 35° | 0.03" | — |
| 1993 | 40° | 32° | 36° | 0.13" | — |
| 1992 | 35° | 29° | 32° | — | — |
| 1991 | 30° | 15° | 23° | — | 0.1" |
| 1990 | 42° | 34° | 38° | 0.38" | — |
| 1989 | 19° | 0° | 10° | — | — |
| 1988 | 22° | 15° | 18° | 0.2" | 1.6" |
| 1987 | 28° | 23° | 26° | — | — |
| 1986 | 35° | 31° | 33° | 0.74" | — |
| 1985coldest | 14° | 0° | 7° | 0.1" | 0.6" |
| 1984 | 46° | 30° | 38° | — | — |
| 1983 | 18° | 12° | 15° | 0.05" | 0.3" |
| 1982 | 35° | 22° | 28° | — | — |
| 1981 | 23° | 8° | 16° | 0.08" | 0.3" |
| 1980 | 35° | 26° | 31° | 0.03" | 0.2" |
| 1979 | 26° | 11° | 18° | — | — |
| 1978 | 38° | 27° | 32° | — | — |
| 1977 | 39° | 34° | 36° | 0.79" | — |
| 1976 | 36° | 21° | 28° | — | — |
| 1975 | 16° | 9° | 12° | 0.03" | 0.1" |
| 1974 | 30° | 20° | 25° | 0.1" | 1" |
| 1973 | 25° | 10° | 17° | — | — |
| 1972 | 36° | 17° | 26° | — | — |
| 1971 | 28° | 16° | 22° | 0.03" | — |
55 years of data from ANN ARBOR 1W