Weather on August 9
Dayton, OH
55 Years of Data
Avg High
87°F
Avg Low
66°F
Warmest
2007
89°F avg
Coldest
1989
63°F avg
About This Date
August 9th in Dayton, OH typically brings warm summer weather, with average highs around 87°F and lows near 66°F. Over 55 years of records, the warmest August 9th was in 2007 (89°F average), while the coldest was 1989 (63°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 25% of August 9th dates historically, with the wettest August 9th recording 3.48" 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 August 9th in Dayton, OH? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 68° | 78° | — | — |
| 2024 | 82° | 62° | 72° | — | — |
| 2023 | 82° | 63° | 72° | 2.77" | — |
| 2022 | 81° | 71° | 76° | 0.43" | — |
| 2021 | 93° | 75° | 84° | — | — |
| 2020 | 96° | 69° | 83° | — | — |
| 2019 | 93° | 71° | 82° | 0.28" | — |
| 2018 | 84° | 65° | 74° | 3.48" | — |
| 2017 | 79° | 55° | 67° | — | — |
| 2016 | 90° | 69° | 79° | — | — |
| 2015 | 87° | 61° | 74° | — | — |
| 2014 | 82° | 65° | 73° | — | — |
| 2013 | 84° | 70° | 77° | 1.91" | — |
| 2012 | 98° | 67° | 82° | 0.48" | — |
| 2011 | 90° | 69° | 79° | 2.64" | — |
| 2010 | 88° | 67° | 77° | — | — |
| 2009 | 88° | 70° | 79° | — | — |
| 2008 | 80° | 62° | 71° | — | — |
| 2007warmest | 101° | 78° | 89° | — | — |
| 2006 | 85° | 67° | 76° | — | — |
| 2005 | 89° | 68° | 79° | — | — |
| 2004 | 83° | 61° | 72° | — | — |
| 2003 | 87° | 64° | 76° | 0.1" | — |
| 2002 | 82° | 60° | 71° | — | — |
| 2001 | 98° | 78° | 88° | — | — |
| 2000 | 81° | 73° | 77° | 0.23" | — |
| 1999 | 86° | 61° | 73° | 0.03" | — |
| 1998 | 90° | 72° | 81° | — | — |
| 1997 | 86° | 58° | 72° | — | — |
| 1996 | 93° | 62° | 78° | — | — |
| 1995 | 84° | 70° | 77° | 1.19" | — |
| 1994 | 86° | 61° | 73° | — | — |
| 1993 | 85° | 63° | 74° | — | — |
| 1992 | 88° | 63° | 75° | — | — |
| 1991 | 89° | 66° | 78° | 1.8" | — |
| 1990 | 80° | 55° | 68° | — | — |
| 1989coldest | 76° | 51° | 63° | — | — |
| 1988 | 91° | 71° | 81° | — | — |
| 1987 | 92° | 68° | 80° | — | — |
| 1986 | 88° | 68° | 78° | — | — |
| 1985 | 86° | 64° | 75° | — | — |
| 1984 | 90° | 71° | 80° | 0.03" | — |
| 1983 | 98° | 72° | 85° | — | — |
| 1982 | 85° | 71° | 78° | — | — |
| 1981 | 82° | 64° | 73° | — | — |
| 1980 | 95° | 77° | 86° | — | — |
| 1979 | 93° | 75° | 84° | — | — |
| 1978 | 84° | 65° | 74° | — | — |
| 1977 | 80° | 70° | 75° | 1.42" | — |
| 1976 | 77° | 55° | 66° | — | — |
| 1975 | 83° | 61° | 72° | — | — |
| 1974 | 83° | 68° | 75° | — | — |
| 1973 | 92° | 75° | 83° | — | — |
| 1972 | 78° | 58° | 68° | — | — |
| 1971 | 86° | 64° | 75° | — | — |
55 years of data from DAYTON MCD