Weather on May 21
Ann Arbor, MI
55 Years of Data
Avg High
74°F
Avg Low
50°F
Warmest
2013
79°F avg
Coldest
2002
44°F avg
About This Date
May 21st in Ann Arbor, MI typically brings pleasant spring weather, with average highs around 74°F and lows near 50°F. Over 55 years of records, the warmest May 21st was in 2013 (79°F average), while the coldest was 2002 (44°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 27% of May 21st dates historically, with the wettest May 21st recording 3.2" of rain. The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Ann Arbor, MI? Great weather for outdoor activities.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 53° | 49° | 51° | 0.76" | — |
| 2024 | 86° | 58° | 72° | — | — |
| 2023 | 75° | 42° | 59° | — | — |
| 2022 | 76° | 61° | 68° | 0.3" | — |
| 2021 | 87° | 52° | 69° | — | — |
| 2020 | 66° | 52° | 59° | — | — |
| 2019 | 60° | 34° | 47° | — | — |
| 2018 | 66° | 50° | 58° | 1.09" | — |
| 2017 | 74° | 53° | 63° | 2.13" | — |
| 2016 | 73° | 45° | 59° | — | — |
| 2015 | 64° | 44° | 54° | — | — |
| 2014 | 82° | 56° | 69° | 0.03" | — |
| 2013warmest | 91° | 67° | 79° | — | — |
| 2012 | 88° | 60° | 74° | — | — |
| 2011 | 76° | 53° | 64° | — | — |
| 2010 | 83° | 58° | 70° | 0.13" | — |
| 2009 | 83° | 54° | 68° | — | — |
| 2008 | 59° | 43° | 51° | 0.05" | — |
| 2007 | 63° | 41° | 52° | — | — |
| 2006 | 58° | 40° | 49° | 0.15" | — |
| 2005 | 76° | 37° | 56° | — | — |
| 2004 | 81° | 57° | 69° | 3.2" | — |
| 2003 | 60° | 41° | 51° | — | — |
| 2002coldest | 57° | 30° | 44° | — | — |
| 2001 | 76° | 61° | 68° | 1.12" | — |
| 2000 | 67° | 49° | 58° | — | — |
| 1999 | 79° | 44° | 61° | — | — |
| 1998 | 82° | 49° | 65° | — | — |
| 1997 | 60° | 37° | 49° | — | — |
| 1996 | 74° | 55° | 64° | 2.44" | — |
| 1995 | 72° | 50° | 61° | — | — |
| 1994 | 83° | 54° | 68° | — | — |
| 1993 | 63° | 42° | 52° | — | — |
| 1992 | 84° | 54° | 69° | — | — |
| 1991 | 82° | 49° | 65° | — | — |
| 1990 | 65° | 47° | 56° | — | — |
| 1989 | 77° | 49° | 63° | 0.03" | — |
| 1988 | 77° | 54° | 65° | — | — |
| 1987 | 85° | 60° | 72° | — | — |
| 1986 | 52° | 45° | 48° | 0.05" | — |
| 1985 | 65° | 43° | 54° | — | — |
| 1984 | 68° | 44° | 56° | — | — |
| 1983 | 73° | 47° | 60° | — | — |
| 1982 | 76° | 50° | 63° | 0.08" | — |
| 1981 | 80° | 47° | 63° | — | — |
| 1980 | 75° | 52° | 63° | — | — |
| 1979 | 74° | 45° | 59° | — | — |
| 1978 | 70° | 45° | 57° | — | — |
| 1977 | 88° | 61° | 74° | — | — |
| 1976 | 75° | 50° | 63° | — | — |
| 1975 | 86° | 63° | 74° | 2.01" | — |
| 1974 | 83° | 52° | 67° | — | — |
| 1973 | 75° | 48° | 62° | — | — |
| 1972 | 87° | 60° | 74° | — | — |
| 1971 | 67° | 49° | 58° | — | — |
55 years of data from ANN ARBOR 1W