Weather on March 21
Ann Arbor, MI
55 Years of Data
Avg High
47°F
Avg Low
27°F
Warmest
2012
67°F avg
Coldest
2013
21°F avg
About This Date
March 21st in Ann Arbor, MI typically brings chilly spring weather, with average highs around 47°F and lows near 27°F. Over 56 years of records, the warmest March 21st was in 2012 (67°F average), while the coldest was 2013 (21°F) — a 46°F range across recorded history. Precipitation has occurred on 30% of recorded March 21st dates, with snow falling 16% of the time (heaviest snowfall: 8"). The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Ann Arbor, MI? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 45° | 33° | 39° | — | — |
| 2025 | 53° | 22° | 38° | — | — |
| 2024 | 38° | 13° | 26° | — | — |
| 2023 | 56° | 26° | 41° | — | — |
| 2022 | 62° | 27° | 45° | — | — |
| 2021 | 65° | 19° | 42° | — | — |
| 2020 | 38° | 25° | 32° | — | — |
| 2019 | 43° | 31° | 37° | — | — |
| 2018 | 42° | 28° | 35° | — | — |
| 2017 | 56° | 25° | 41° | — | — |
| 2016 | 46° | 26° | 36° | — | — |
| 2015 | 52° | 29° | 41° | — | — |
| 2014 | 41° | 19° | 30° | — | — |
| 2013coldest | 30° | 12° | 21° | — | 0.2" |
| 2012warmest | 82° | 51° | 67° | — | — |
| 2011 | 49° | 30° | 39° | 2.29" | — |
| 2010 | 42° | 31° | 36° | — | — |
| 2009 | — | 22° | — | — | — |
| 2008 | 30° | 25° | 28° | 0.89" | — |
| 2007 | 57° | 26° | 42° | 0.41" | — |
| 2006 | 33° | 19° | 26° | — | — |
| 2005 | 38° | 30° | 34° | — | — |
| 2004 | 36° | 22° | 29° | — | — |
| 2003 | 53° | 30° | 42° | 0.1" | — |
| 2002 | 39° | 15° | 27° | — | — |
| 2001 | 56° | 27° | 41° | — | — |
| 2000 | 48° | 41° | 45° | — | — |
| 1999 | 42° | 29° | 35° | — | — |
| 1998 | 34° | 29° | 31° | 2.08" | 5" |
| 1997 | 70° | 37° | 53° | — | — |
| 1996 | 29° | 20° | 24° | 0.08" | 0.4" |
| 1995 | 56° | 39° | 47° | 0.15" | — |
| 1994 | 50° | 32° | 41° | 2.77" | — |
| 1993 | 41° | 31° | 36° | 0.23" | 0.3" |
| 1992 | 35° | 20° | 27° | 0.05" | 0.5" |
| 1991 | 72° | 39° | 55° | — | — |
| 1990 | 45° | 29° | 37° | — | — |
| 1989 | 32° | 16° | 24° | — | — |
| 1988 | 34° | 14° | 24° | — | — |
| 1987 | 53° | 27° | 40° | — | — |
| 1986 | 33° | 10° | 22° | — | — |
| 1985 | 43° | 19° | 31° | — | — |
| 1984 | 44° | 31° | 37° | 1.93" | 0.6" |
| 1983 | 29° | 20° | 24° | 1.93" | 8" |
| 1982 | 40° | 34° | 37° | 0.05" | — |
| 1981 | 43° | 28° | 35° | — | — |
| 1980 | 52° | 31° | 41° | 2.62" | 3.6" |
| 1979 | 63° | 38° | 50° | — | — |
| 1978 | 45° | 36° | 40° | 1.47" | — |
| 1977 | 47° | 26° | 36° | — | — |
| 1976 | 67° | 25° | 46° | 0.03" | — |
| 1975 | 52° | 31° | 41° | — | — |
| 1974 | 37° | 26° | 32° | 0.18" | 1.2" |
| 1973 | 40° | 21° | 30° | — | — |
| 1972 | 67° | 39° | 53° | — | — |
| 1971 | 39° | 23° | 31° | — | — |
56 years of data from ANN ARBOR 1W