Weather on August 18
Detroit, MI
55 Years of Data
Avg High
81°F
Avg Low
63°F
Warmest
1983
80°F avg
Coldest
2007
62°F avg
About This Date
August 18th in Detroit, MI typically brings warm summer weather, with average highs around 81°F and lows near 63°F. Over 55 years of records, the warmest August 18th was in 1983 (80°F average), while the coldest was 2007 (62°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 18th dates historically, with the wettest August 18th recording 2.18" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Detroit, MI? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 58° | 68° | — | — |
| 2024 | 82° | 70° | 76° | 0.58" | — |
| 2023 | 75° | 59° | 67° | — | — |
| 2022 | 86° | 60° | 73° | 0.03" | — |
| 2021 | 84° | 70° | 77° | — | — |
| 2020 | 78° | 62° | 70° | — | — |
| 2019 | 87° | 68° | 78° | 0.84" | — |
| 2018 | 83° | 70° | 76° | — | — |
| 2017 | 78° | 67° | 72° | — | — |
| 2016 | 84° | 67° | 75° | — | — |
| 2015 | 83° | 70° | 76° | 0.23" | — |
| 2014 | 79° | 63° | 71° | — | — |
| 2013 | 82° | 60° | 71° | — | — |
| 2012 | 74° | 52° | 63° | — | — |
| 2011 | 85° | 66° | 75° | 0.03" | — |
| 2010 | 82° | 62° | 72° | 0.03" | — |
| 2009 | 84° | 70° | 77° | 0.64" | — |
| 2008 | 89° | 68° | 79° | — | — |
| 2007coldest | 71° | 54° | 62° | 0.05" | — |
| 2006 | 82° | 71° | 77° | 0.03" | — |
| 2005 | 86° | 69° | 78° | — | — |
| 2004 | 79° | 64° | 71° | — | — |
| 2003 | 79° | 59° | 69° | — | — |
| 2002 | 82° | 66° | 74° | — | — |
| 2001 | 81° | 62° | 71° | 2.18" | — |
| 2000 | 77° | 63° | 70° | — | — |
| 1999 | 75° | 66° | 71° | — | — |
| 1998 | 76° | 59° | 67° | — | — |
| 1997 | 75° | 57° | 66° | — | — |
| 1996 | 85° | 61° | 73° | — | — |
| 1995 | 86° | 71° | 79° | — | — |
| 1994 | 83° | 60° | 71° | — | — |
| 1993 | 89° | 66° | 78° | — | — |
| 1992 | 75° | 55° | 65° | — | — |
| 1991 | 80° | 63° | 71° | — | — |
| 1990 | 83° | 72° | 77° | — | — |
| 1989 | 80° | 54° | 67° | — | — |
| 1988 | 73° | 63° | 68° | — | — |
| 1987 | 84° | 64° | 74° | — | — |
| 1986 | 89° | 66° | 78° | — | — |
| 1985 | 82° | 65° | 73° | — | — |
| 1984 | 85° | 68° | 76° | — | — |
| 1983warmest | 86° | 74° | 80° | — | — |
| 1982 | 82° | 61° | 71° | — | — |
| 1981 | 75° | 50° | 63° | — | — |
| 1980 | 85° | 65° | 75° | — | — |
| 1979 | 73° | 58° | 65° | — | — |
| 1978 | 87° | 69° | 78° | — | — |
| 1977 | 72° | 55° | 63° | — | — |
| 1976 | 81° | 60° | 70° | — | — |
| 1975 | 80° | 61° | 70° | — | — |
| 1974 | 86° | 64° | 75° | — | — |
| 1973 | 81° | 64° | 72° | 0.51" | — |
| 1972 | 85° | 71° | 78° | — | — |
| 1971 | 88° | 60° | 74° | — | — |
55 years of data from DETROIT CITY AP