Weather on May 15
Dayton, OH
55 Years of Data
Avg High
75°F
Avg Low
53°F
Warmest
2018
82°F avg
Coldest
2016
46°F avg
About This Date
May 15th in Dayton, OH typically brings pleasant spring weather, with average highs around 75°F and lows near 53°F. Over 55 years of records, the warmest May 15th was in 2018 (82°F average), while the coldest was 2016 (46°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 40% of May 15th dates historically, with the wettest May 15th recording 2.69" of rain. The last decade has been 5.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.7°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Dayton, OH? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 63° | 74° | — | — |
| 2024 | 72° | 62° | 67° | 0.03" | — |
| 2023 | 75° | 54° | 64° | — | — |
| 2022 | 86° | 59° | 73° | — | — |
| 2021 | 72° | 47° | 59° | — | — |
| 2020 | 83° | 58° | 70° | 0.33" | — |
| 2019 | 72° | 47° | 59° | — | — |
| 2018warmest | 90° | 74° | 82° | — | — |
| 2017 | 85° | 55° | 70° | — | — |
| 2016coldest | 50° | 43° | 46° | 0.38" | — |
| 2015 | 72° | 48° | 60° | — | — |
| 2014 | 72° | 37° | 54° | 2.44" | — |
| 2013 | 82° | 51° | 67° | — | — |
| 2012 | 78° | 54° | 66° | — | — |
| 2011 | 73° | 57° | 65° | 0.23" | — |
| 2010 | 79° | 54° | 66° | — | — |
| 2009 | 75° | 50° | 63° | 0.18" | — |
| 2008 | 60° | 53° | 57° | 0.23" | — |
| 2007 | 83° | 52° | 67° | — | — |
| 2006 | 56° | 46° | 51° | 0.1" | — |
| 2005 | 66° | 45° | 55° | 0.66" | — |
| 2004 | 77° | 51° | 64° | — | — |
| 2003 | 69° | 51° | 60° | 1.88" | — |
| 2002 | 67° | 48° | 57° | — | — |
| 2001 | 76° | 54° | 65° | 0.38" | — |
| 2000 | 67° | 46° | 56° | — | — |
| 1999 | 68° | 54° | 61° | — | — |
| 1998 | 93° | 61° | 77° | — | — |
| 1997 | 69° | 44° | 57° | 0.2" | — |
| 1996 | 65° | 45° | 55° | — | — |
| 1995 | 85° | 56° | 70° | — | — |
| 1994 | 77° | 50° | 64° | 0.71" | — |
| 1993 | 75° | 48° | 62° | — | — |
| 1992 | 72° | 52° | 62° | — | — |
| 1991 | 92° | 64° | 78° | — | — |
| 1990 | 75° | 50° | 63° | — | — |
| 1989 | 66° | 45° | 55° | — | — |
| 1988 | 79° | 55° | 67° | — | — |
| 1987 | 89° | 61° | 75° | 0.25" | — |
| 1986 | 79° | 63° | 71° | — | — |
| 1985 | 85° | 63° | 74° | 1.45" | — |
| 1984 | 64° | 45° | 54° | — | — |
| 1983 | 79° | 57° | 68° | 1.4" | — |
| 1982 | 91° | 64° | 78° | — | — |
| 1981 | 63° | 49° | 56° | 2.69" | — |
| 1980 | 65° | 45° | 55° | — | — |
| 1979 | 76° | 54° | 65° | 0.08" | — |
| 1978 | 50° | 44° | 47° | 0.58" | — |
| 1977 | 86° | 57° | 72° | — | — |
| 1976 | 79° | 66° | 72° | — | — |
| 1975 | 77° | 55° | 66° | — | — |
| 1974 | 86° | 64° | 75° | 0.13" | — |
| 1973 | 64° | 38° | 51° | 0.43" | — |
| 1972 | 76° | 57° | 66° | 0.05" | — |
| 1971 | 77° | 51° | 64° | — | — |
55 years of data from DAYTON MCD