Weather on September 1
Ann Arbor, MI
55 Years of Data
Avg High
80°F
Avg Low
56°F
Warmest
1973
80°F avg
Coldest
2017
55°F avg
About This Date
September 1st in Ann Arbor, MI typically brings warm fall weather, with average highs around 80°F and lows near 56°F. Over 55 years of records, the warmest September 1st was in 1973 (80°F average), while the coldest was 2017 (55°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 1st dates historically, with the wettest September 1st recording 1.85" of rain. The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for September 1st in Ann Arbor, MI? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 43° | 60° | — | — |
| 2024 | 79° | 55° | 67° | — | — |
| 2023 | 77° | 42° | 60° | — | — |
| 2022 | 84° | 53° | 69° | — | — |
| 2021 | 80° | 58° | 69° | — | — |
| 2020 | 85° | 53° | 69° | 0.91" | — |
| 2019 | 69° | 59° | 64° | 0.03" | — |
| 2018 | 85° | 58° | 71° | — | — |
| 2017coldest | 68° | 42° | 55° | — | — |
| 2016 | 76° | 53° | 64° | — | — |
| 2015 | 89° | 57° | 73° | — | — |
| 2014 | 85° | 64° | 74° | 0.23" | — |
| 2013 | 82° | 68° | 75° | 0.1" | — |
| 2012 | 93° | 66° | 80° | — | — |
| 2011 | 81° | 62° | 71° | — | — |
| 2010 | 91° | 66° | 79° | — | — |
| 2009 | 70° | 44° | 57° | — | — |
| 2008 | 88° | 55° | 71° | — | — |
| 2007 | 79° | 48° | 63° | — | — |
| 2006 | 69° | 58° | 63° | 0.03" | — |
| 2005 | 82° | 52° | 67° | — | — |
| 2004 | 79° | 50° | 64° | — | — |
| 2003 | 62° | 56° | 59° | 1.85" | — |
| 2002 | 83° | 55° | 69° | — | — |
| 2001 | 72° | 46° | 59° | — | — |
| 2000 | 88° | 61° | 74° | 0.03" | — |
| 1999 | 83° | 47° | 65° | — | — |
| 1998 | 79° | 58° | 68° | — | — |
| 1997 | 77° | 60° | 69° | — | — |
| 1996 | 84° | 59° | 72° | — | — |
| 1995 | 84° | 59° | 72° | 0.05" | — |
| 1994 | 68° | 46° | 57° | — | — |
| 1993 | 75° | 53° | 64° | — | — |
| 1992 | 73° | 49° | 61° | — | — |
| 1991 | 72° | 50° | 61° | — | — |
| 1990 | 84° | 62° | 73° | — | — |
| 1989 | 80° | 66° | 73° | 1.83" | — |
| 1988 | 78° | 56° | 67° | — | — |
| 1987 | 70° | 49° | 59° | — | — |
| 1986 | 78° | 51° | 65° | — | — |
| 1985 | 78° | 53° | 66° | — | — |
| 1984 | 75° | 58° | 66° | 0.2" | — |
| 1983 | 82° | 57° | 70° | — | — |
| 1982 | 82° | 63° | 72° | — | — |
| 1981 | 82° | 65° | 73° | — | — |
| 1980 | 83° | 67° | 75° | 1.78" | — |
| 1979 | 82° | 63° | 72° | — | — |
| 1978 | 82° | 50° | 66° | — | — |
| 1977 | 84° | 66° | 75° | 0.03" | — |
| 1976 | 85° | 60° | 72° | — | — |
| 1975 | 76° | 63° | 69° | 0.1" | — |
| 1974 | 73° | 55° | 64° | — | — |
| 1973warmest | 90° | 71° | 80° | — | — |
| 1972 | 86° | 63° | 74° | — | — |
| 1971 | 80° | 61° | 70° | — | — |
55 years of data from ANN ARBOR 1W