May weather in Dayton, TN
The average temperature in Dayton in May is 66.5°F (55.0°F–78.0°F). Average precipitation: 4.79 inches.
May is a spring month in Dayton, and is warmer than the annual average of 58.4°F. Daily temperatures swing about 23°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 13h 52m. For travel, May is a comfortable month to visit.
Avg High
78.0°F
Avg Low
55.0°F
Precipitation
4.79 in
Daylight
13h 52m
May records in Dayton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.1°F (2012) | 30.9°F (1963) | 1.44 in (2017) |
| May 2 | 87.1°F (1959) | 30.0°F (1963) | 1.84 in (2009) |
| May 3 | 88.0°F (2012) | 34.0°F (1971) | 3.24 in (2010) |
| May 4 | 87.1°F (1959) | 33.1°F (1976) | 1.52 in (2002) |
| May 5 | 89.1°F (1959) | 35.1°F (1973) | 3.56 in (2013) |
| May 6 | 88.0°F (2012) | 33.1°F (1968) | 7.21 in (2003) |
| May 7 | 90.0°F (1959) | 34.0°F (1989) | 2.23 in (2003) |
| May 8 | 90.0°F (1962) | 34.0°F (1989) | 3.63 in (1973) |
| May 9 | 89.1°F (1963) | 33.1°F (2020) | 2.60 in (2024) |
| May 10 | 88.0°F (1963) | 34.0°F (2020) | 0.94 in (1990) |
| May 11 | 89.1°F (1962) | 35.1°F (1960) | 2.28 in (2005) |
| May 12 | 89.1°F (1962) | 39.0°F (2020) | 1.61 in (1974) |
| May 13 | 89.1°F (1962) | 35.1°F (1969) | 2.58 in (1972) |
| May 14 | 89.1°F (2018) | 36.0°F (2013) | 2.51 in (1995) |
| May 15 | 91.0°F (1962) | 39.0°F (1959) | 1.84 in (1974) |
| May 16 | 91.9°F (1962) | 35.1°F (1973) | 1.65 in (1970) |
| May 17 | 90.0°F (1962) | 41.0°F (1978) | 2.85 in (1980) |
| May 18 | 93.0°F (1962) | 33.1°F (1973) | 3.13 in (2003) |
| May 19 | 93.9°F (1962) | 37.0°F (1976) | 2.45 in (1983) |
| May 20 | 91.9°F (1962) | 37.0°F (2002) | 2.40 in (2013) |
| May 21 | 90.0°F (1962) | 41.0°F (1993) | 1.36 in (2023) |
| May 22 | 91.9°F (1970) | 39.0°F (1968) | 1.42 in (2013) |
| May 23 | 91.0°F (1970) | 39.9°F (1963) | 1.48 in (1979) |
| May 24 | 91.9°F (1960) | 43.0°F (1963) | 2.09 in (1978) |
| May 25 | 91.0°F (1968) | 44.1°F (1979) | 1.23 in (2009) |
| May 26 | 91.0°F (1967) | 35.1°F (1979) | 1.03 in (1974) |
| May 27 | 91.0°F (1967) | 39.0°F (1961) | 1.56 in (1973) |
| May 28 | 91.9°F (1962) | 39.9°F (1961) | 1.88 in (1976) |
| May 29 | 90.0°F (1967) | 46.9°F (1961) | 2.13 in (1976) |
| May 30 | 93.9°F (1982) | 39.0°F (1984) | 1.04 in (2012) |
| May 31 | 91.9°F (2011) | 37.9°F (1984) | 2.97 in (1993) |