Weather on October 21
Detroit, MI
55 Years of Data
About This Date
October 21st in Detroit, MI typically brings mild fall weather, with average highs around 60°F and lows near 45°F. Over 55 years of records, the warmest October 21st was in 1979 (70°F average), while the coldest was 1987 (39°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 20% of October 21st dates historically, with the wettest October 21st recording 0.97" of rain. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Detroit, MI? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 46° | 54° | 0.03" | — |
| 2024 | 82° | 57° | 70° | — | — |
| 2023 | 57° | 48° | 53° | — | — |
| 2022 | 69° | 35° | 52° | — | — |
| 2021 | 68° | 49° | 58° | 0.58" | — |
| 2020 | 62° | 48° | 55° | 0.48" | — |
| 2019 | 67° | 47° | 57° | 0.51" | — |
| 2018 | 43° | 35° | 39° | — | — |
| 2017 | 72° | 50° | 61° | — | — |
| 2016 | 53° | 42° | 48° | 0.58" | — |
| 2015 | 72° | 56° | 64° | — | — |
| 2014 | 57° | 47° | 52° | 0.13" | — |
| 2013 | 59° | 39° | 49° | — | — |
| 2012 | 61° | 40° | 50° | — | — |
| 2011 | 48° | 44° | 46° | — | — |
| 2010 | 53° | 39° | 46° | — | — |
| 2009 | 68° | 54° | 61° | 0.64" | — |
| 2008 | 50° | 38° | 44° | — | — |
| 2007 | 79° | 57° | 68° | — | — |
| 2006 | 56° | 45° | 50° | 0.03" | — |
| 2005 | 56° | 40° | 48° | — | — |
| 2004 | 55° | 50° | 53° | — | — |
| 2003 | 67° | 45° | 56° | 0.05" | — |
| 2002 | 50° | 34° | 42° | — | — |
| 2001 | 65° | 49° | 57° | — | — |
| 2000 | 67° | 49° | 58° | — | — |
| 1999 | 59° | 36° | 47° | — | — |
| 1998 | 56° | 42° | 49° | — | — |
| 1997 | 53° | 34° | 43° | — | — |
| 1996 | 56° | 51° | 53° | — | — |
| 1995 | 51° | 40° | 45° | — | — |
| 1994 | 60° | 47° | 53° | — | — |
| 1993 | 58° | 48° | 53° | — | — |
| 1992 | 54° | 38° | 46° | — | — |
| 1991 | 60° | 43° | 51° | — | — |
| 1990 | 67° | 49° | 58° | — | — |
| 1989 | 44° | 35° | 40° | — | — |
| 1988 | 49° | 45° | 47° | — | — |
| 1987coldest | 43° | 36° | 39° | — | — |
| 1986 | 72° | 53° | 62° | — | — |
| 1985 | 57° | 47° | 52° | — | — |
| 1984 | 66° | 50° | 58° | — | — |
| 1983 | 58° | 46° | 52° | — | — |
| 1982 | 46° | 41° | 44° | — | — |
| 1981 | 57° | 42° | 50° | — | — |
| 1980 | 55° | 39° | 47° | — | — |
| 1979warmest | 76° | 64° | 70° | — | — |
| 1978 | 74° | 50° | 62° | — | — |
| 1977 | 66° | 46° | 56° | — | — |
| 1976 | 48° | 38° | 43° | — | — |
| 1975 | 70° | 53° | 61° | — | — |
| 1974 | 52° | 28° | 40° | — | — |
| 1973 | 59° | 33° | 46° | — | — |
| 1972 | 49° | 43° | 46° | 0.97" | — |
| 1971 | 75° | 58° | 66° | 0.03" | — |
Detroit, MI Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Detroit, MI Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Detroit, 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 Detroit, MI
Detroit, MI has no months that meet our "pleasant" threshold — every season has tradeoffs.