Weather on May 20
Dayton, OH
55 Years of Data
Avg High
77°F
Avg Low
55°F
Warmest
1996
82°F avg
Coldest
2002
48°F avg
About This Date
May 20th in Dayton, OH typically brings pleasant spring weather, with average highs around 77°F and lows near 55°F. Over 55 years of records, the warmest May 20th was in 1996 (82°F average), while the coldest was 2002 (48°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 38% of May 20th dates historically, with the wettest May 20th recording 2.44" 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 May 20th in Dayton, OH? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 52° | 57° | 1.35" | — |
| 2024 | 87° | 65° | 76° | — | — |
| 2023 | 67° | 51° | 59° | 0.53" | — |
| 2022 | 88° | 66° | 77° | 1.04" | — |
| 2021 | 91° | 67° | 79° | — | — |
| 2020 | 66° | 51° | 59° | 1.85" | — |
| 2019 | 83° | 60° | 71° | 0.66" | — |
| 2018 | 79° | 64° | 71° | 0.84" | — |
| 2017 | 86° | 53° | 70° | 0.3" | — |
| 2016 | 74° | 51° | 62° | — | — |
| 2015 | 69° | 41° | 55° | — | — |
| 2014 | 72° | 50° | 61° | — | — |
| 2013 | 85° | 65° | 75° | — | — |
| 2012 | 88° | 59° | 73° | — | — |
| 2011 | 67° | 57° | 62° | 0.18" | — |
| 2010 | 65° | 49° | 57° | — | — |
| 2009 | 77° | 51° | 64° | — | — |
| 2008 | 65° | 48° | 56° | 0.94" | — |
| 2007 | 74° | 49° | 61° | — | — |
| 2006 | 69° | 45° | 57° | — | — |
| 2005 | 72° | 57° | 64° | 2.44" | — |
| 2004 | 80° | 68° | 74° | 0.08" | — |
| 2003 | 77° | 61° | 69° | 0.33" | — |
| 2002coldest | 56° | 41° | 48° | — | — |
| 2001 | 75° | 56° | 65° | — | — |
| 2000 | 81° | 52° | 66° | — | — |
| 1999 | 81° | 55° | 68° | — | — |
| 1998 | 94° | 65° | 79° | 1.47" | — |
| 1997 | 85° | 47° | 66° | — | — |
| 1996warmest | 92° | 72° | 82° | — | — |
| 1995 | 72° | 48° | 60° | — | — |
| 1994 | 73° | 47° | 60° | — | — |
| 1993 | 62° | 44° | 53° | — | — |
| 1992 | 79° | 52° | 65° | — | — |
| 1991 | 76° | 55° | 65° | — | — |
| 1990 | 81° | 58° | 69° | — | — |
| 1989 | 75° | 63° | 69° | 0.38" | — |
| 1988 | 64° | 56° | 60° | — | — |
| 1987 | 86° | 67° | 76° | 0.03" | — |
| 1986 | 62° | 47° | 54° | — | — |
| 1985 | 80° | 44° | 62° | — | — |
| 1984 | 79° | 55° | 67° | — | — |
| 1983 | 73° | 58° | 65° | 0.1" | — |
| 1982 | 84° | 63° | 73° | 1.09" | — |
| 1981 | 63° | 41° | 52° | — | — |
| 1980 | 72° | 57° | 64° | 0.79" | — |
| 1979 | 86° | 60° | 73° | — | — |
| 1978 | 86° | 62° | 74° | — | — |
| 1977 | 92° | 69° | 80° | — | — |
| 1976 | 72° | 50° | 61° | — | — |
| 1975 | 86° | 65° | 75° | — | — |
| 1974 | 76° | 55° | 65° | 0.28" | — |
| 1973 | 65° | 50° | 57° | 1.75" | — |
| 1972 | 80° | 58° | 69° | — | — |
| 1971 | 85° | 55° | 70° | 0.69" | — |
55 years of data from DAYTON MCD