Weather on August 20
Dayton, OH
55 Years of Data
Avg High
86°F
Avg Low
65°F
Warmest
2019
86°F avg
Coldest
2024
62°F avg
About This Date
August 20th in Dayton, OH typically brings warm summer weather, with average highs around 86°F and lows near 65°F. Over 55 years of records, the warmest August 20th was in 2019 (86°F average), while the coldest was 2024 (62°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 33% of August 20th dates historically, with the wettest August 20th recording 4.09" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for August 20th in Dayton, OH? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 66° | 71° | — | — |
| 2024coldest | 72° | 52° | 62° | — | — |
| 2023 | 86° | 65° | 75° | — | — |
| 2022 | 87° | 66° | 77° | — | — |
| 2021 | 88° | 64° | 76° | 0.36" | — |
| 2020 | 80° | 66° | 73° | — | — |
| 2019warmest | 97° | 76° | 86° | — | — |
| 2018 | 84° | 65° | 74° | — | — |
| 2017 | 90° | 68° | 79° | — | — |
| 2016 | 86° | 69° | 78° | — | — |
| 2015 | 88° | 63° | 75° | 1.09" | — |
| 2014 | 91° | 66° | 79° | 0.05" | — |
| 2013 | 86° | 62° | 74° | — | — |
| 2012 | 82° | 55° | 69° | — | — |
| 2011 | 91° | 68° | 80° | — | — |
| 2010 | 92° | 69° | 80° | — | — |
| 2009 | 86° | 70° | 78° | 4.09" | — |
| 2008 | 88° | 63° | 75° | — | — |
| 2007 | 90° | 65° | 77° | 0.03" | — |
| 2006 | 91° | 70° | 80° | — | — |
| 2005 | 92° | 71° | 81° | — | — |
| 2004 | 91° | 69° | 80° | 0.08" | — |
| 2003 | 86° | 62° | 74° | — | — |
| 2002 | 88° | 66° | 77° | — | — |
| 2001 | 79° | 65° | 72° | — | — |
| 2000 | 81° | 57° | 69° | — | — |
| 1999 | 80° | 61° | 70° | 0.41" | — |
| 1998 | 82° | 58° | 70° | — | — |
| 1997 | 74° | 62° | 68° | 1.88" | — |
| 1996 | 91° | 70° | 80° | — | — |
| 1995 | 91° | 74° | 82° | 1.55" | — |
| 1994 | 92° | 65° | 78° | — | — |
| 1993 | 93° | 70° | 81° | 0.71" | — |
| 1992 | 79° | 55° | 67° | — | — |
| 1991 | 78° | 63° | 70° | 0.43" | — |
| 1990 | 85° | 68° | 76° | 1.24" | — |
| 1989 | 75° | 65° | 70° | — | — |
| 1988 | 85° | 70° | 77° | 0.76" | — |
| 1987 | 87° | 64° | 76° | — | — |
| 1986 | 88° | 62° | 75° | — | — |
| 1985 | 79° | 62° | 70° | — | — |
| 1984 | 82° | 57° | 70° | — | — |
| 1983 | 97° | 72° | 84° | — | — |
| 1982 | 87° | 59° | 73° | — | — |
| 1981 | 84° | 58° | 71° | — | — |
| 1980 | 87° | 68° | 78° | — | — |
| 1979 | 86° | 67° | 76° | 0.2" | — |
| 1978 | 90° | 57° | 73° | 1.32" | — |
| 1977 | 78° | 55° | 67° | — | — |
| 1976 | 85° | 61° | 73° | — | — |
| 1975 | 87° | 66° | 77° | 0.08" | — |
| 1974 | 86° | 65° | 75° | — | — |
| 1973 | 83° | 62° | 72° | 2.51" | — |
| 1972 | 89° | 66° | 78° | 0.46" | — |
| 1971 | 89° | 69° | 79° | — | — |
55 years of data from DAYTON MCD