Weather on October 31
Ann Arbor, MI
55 Years of Data
About This Date
October 31st in Ann Arbor, MI typically brings cool fall weather, with average highs around 57°F and lows near 37°F. Over 55 years of records, the warmest October 31st was in 1974 (65°F average), while the coldest was 2023 (30°F) — a 35°F range across recorded history. Precipitation has occurred on 42% of recorded October 31st dates, with snow falling 2% of the time. The last decade has been 4.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.1°F cooler on this date compared to 20-30 years ago.
Planning for October 31st 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 |
|---|---|---|---|---|---|
| 2025 | 54° | 30° | 42° | — | — |
| 2024 | 74° | 53° | 63° | — | — |
| 2023coldest | 40° | 20° | 30° | — | — |
| 2022 | 62° | 51° | 57° | 0.79" | — |
| 2021 | 58° | 36° | 47° | 0.05" | — |
| 2020 | 50° | 21° | 36° | — | — |
| 2019 | 46° | 34° | 40° | 1.93" | — |
| 2018 | 57° | 40° | 48° | 1.24" | — |
| 2017 | 42° | 32° | 37° | 0.03" | — |
| 2016 | 53° | 29° | 41° | — | — |
| 2015 | 51° | 34° | 42° | 0.28" | — |
| 2014 | 45° | 34° | 39° | 0.3" | — |
| 2013 | 63° | 54° | 58° | 2.77" | — |
| 2012 | 42° | 36° | 39° | — | — |
| 2011 | 51° | 26° | 39° | — | — |
| 2010 | 63° | 30° | 46° | — | — |
| 2009 | 71° | 44° | 58° | 0.91" | — |
| 2008 | 55° | 26° | 41° | — | — |
| 2007 | 64° | 39° | 52° | 0.1" | — |
| 2006 | 60° | 29° | 45° | — | — |
| 2005 | 64° | 28° | 46° | 0.08" | — |
| 2004 | 54° | 44° | 49° | 0.05" | — |
| 2003 | 72° | 54° | 63° | — | — |
| 2002 | 50° | 22° | 36° | — | — |
| 2001 | 67° | 43° | 55° | 0.15" | — |
| 2000 | 64° | 26° | 45° | — | — |
| 1999 | 68° | 38° | 53° | — | — |
| 1998 | 55° | 40° | 47° | — | — |
| 1997 | 58° | 46° | 52° | 1.02" | — |
| 1996 | 43° | 30° | 36° | — | — |
| 1995 | 42° | 37° | 40° | 0.36" | — |
| 1994 | 55° | 44° | 50° | 0.74" | — |
| 1993 | 37° | 31° | 34° | 0.38" | 0.6" |
| 1992 | 47° | 30° | 38° | — | — |
| 1991 | 53° | 45° | 49° | 0.15" | — |
| 1990 | 67° | 43° | 55° | — | — |
| 1989 | 67° | 43° | 55° | 0.71" | — |
| 1988 | 46° | 24° | 35° | — | — |
| 1987 | 62° | 34° | 48° | — | — |
| 1986 | 62° | 33° | 48° | — | — |
| 1985 | 55° | 40° | 47° | — | — |
| 1984 | 60° | 34° | 47° | — | — |
| 1983 | 57° | 31° | 44° | — | — |
| 1982 | 62° | 51° | 57° | 1.85" | — |
| 1981 | 61° | 45° | 53° | — | — |
| 1980 | 56° | 37° | 46° | — | — |
| 1979 | 68° | 42° | 55° | — | — |
| 1978 | 63° | 43° | 53° | — | — |
| 1977 | 60° | 42° | 51° | — | — |
| 1976 | 44° | 38° | 41° | 0.81" | — |
| 1975 | 51° | 29° | 40° | — | — |
| 1974warmest | 72° | 58° | 65° | — | — |
| 1973 | 52° | 47° | 49° | 0.3" | — |
| 1972 | 45° | 35° | 40° | 0.08" | — |
| 1971 | 71° | 57° | 64° | — | — |
Ann Arbor, MI Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Ann Arbor, MI Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Ann Arbor, MI Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Ann Arbor, MI
Ann Arbor, MI has no months that meet our "pleasant" threshold — every season has tradeoffs.