Weather on July 21
Detroit, MI
55 Years of Data
Avg High
84°F
Avg Low
67°F
Warmest
2011
90°F avg
Coldest
1992
63°F avg
About This Date
July 21st in Detroit, MI typically brings warm summer weather, with average highs around 84°F and lows near 67°F. Over 55 years of records, the warmest July 21st was in 2011 (90°F average), while the coldest was 1992 (63°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 20% of July 21st dates historically, with the wettest July 21st recording 1.02" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for July 21st in Detroit, MI? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 61° | 68° | — | — |
| 2024 | 85° | 68° | 76° | — | — |
| 2023 | 83° | 66° | 74° | — | — |
| 2022 | 93° | 74° | 83° | 0.13" | — |
| 2021 | 80° | 63° | 71° | — | — |
| 2020 | 82° | 67° | 74° | — | — |
| 2019 | 81° | 68° | 74° | 0.25" | — |
| 2018 | 73° | 69° | 71° | 0.15" | — |
| 2017 | 86° | 72° | 79° | — | — |
| 2016 | 91° | 71° | 81° | 0.28" | — |
| 2015 | 82° | 69° | 76° | — | — |
| 2014 | 80° | 64° | 72° | — | — |
| 2013 | 87° | 65° | 76° | — | — |
| 2012 | 88° | 59° | 73° | — | — |
| 2011warmest | 100° | 81° | 90° | — | — |
| 2010 | 89° | 72° | 80° | — | — |
| 2009 | 82° | 59° | 71° | 0.03" | — |
| 2008 | 84° | 70° | 77° | 0.36" | — |
| 2007 | 78° | 54° | 66° | — | — |
| 2006 | 84° | 68° | 76° | — | — |
| 2005 | 90° | 72° | 81° | 0.15" | — |
| 2004 | 89° | 72° | 80° | 1.02" | — |
| 2003 | 75° | 64° | 70° | 0.33" | — |
| 2002 | 88° | 69° | 78° | 0.53" | — |
| 2001 | 90° | 70° | 80° | 0.84" | — |
| 2000 | 75° | 64° | 70° | — | — |
| 1999 | 87° | 72° | 79° | — | — |
| 1998 | 98° | 71° | 85° | — | — |
| 1997 | 78° | 65° | 71° | — | — |
| 1996 | 79° | 54° | 66° | — | — |
| 1995 | 84° | 68° | 76° | — | — |
| 1994 | 87° | 71° | 79° | — | — |
| 1993 | 81° | 64° | 72° | — | — |
| 1992coldest | 70° | 57° | 63° | — | — |
| 1991 | 88° | 75° | 81° | — | — |
| 1990 | 81° | 64° | 72° | — | — |
| 1989 | 80° | 67° | 73° | — | — |
| 1988 | 84° | 63° | 73° | — | — |
| 1987 | 91° | 70° | 80° | — | — |
| 1986 | 83° | 65° | 74° | — | — |
| 1985 | 82° | 73° | 78° | — | — |
| 1984 | 83° | 69° | 76° | — | — |
| 1983 | 90° | 73° | 81° | — | — |
| 1982 | 85° | 59° | 72° | — | — |
| 1981 | 76° | 59° | 67° | — | — |
| 1980 | 88° | 74° | 81° | — | — |
| 1979 | 83° | 61° | 72° | — | — |
| 1978 | 90° | 73° | 81° | — | — |
| 1977 | 88° | 69° | 78° | — | — |
| 1976 | 85° | 67° | 76° | — | — |
| 1975 | 84° | 69° | 77° | — | — |
| 1974 | 80° | 53° | 67° | — | — |
| 1973 | 80° | 66° | 73° | — | — |
| 1972 | 93° | 80° | 87° | — | — |
| 1971 | 86° | 60° | 73° | — | — |
55 years of data from DETROIT CITY AP