May weather in Dallas, TX
The average temperature in Dallas in May is 75.4°F (66.0°F–84.9°F). Average precipitation: 4.57 inches.
May is a spring month in Dallas, and is warmer than the annual average of 68°F. Daily temperatures swing about 18.9°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 41m. For travel, May is a comfortable month to visit.
Avg High
84.9°F
Avg Low
66.0°F
Precipitation
4.57 in
Daylight
13h 41m
May records in Dallas
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 93.0°F (2002) | 44.1°F (1960) | 3.37 in (1990) |
| May 2 | 96.1°F (1943) | 44.1°F (2013) | 1.96 in (2011) |
| May 3 | 95.0°F (1943) | 39.9°F (2013) | 4.00 in (1979) |
| May 4 | 98.1°F (1947) | 39.0°F (1954) | 2.01 in (1989) |
| May 5 | 99.0°F (1984) | 45.0°F (1944) | 3.21 in (1995) |
| May 6 | 99.0°F (1998) | 46.0°F (1944) | 4.49 in (1969) |
| May 7 | 95.0°F (1955) | 45.0°F (1982) | 1.30 in (1995) |
| May 8 | 93.0°F (1952) | 48.9°F (1984) | 2.68 in (2014) |
| May 9 | 99.0°F (1952) | 48.0°F (1980) | 1.09 in (1981) |
| May 10 | 96.1°F (1967) | 48.9°F (1997) | 4.54 in (1965) |
| May 11 | 98.1°F (1967) | 45.0°F (1952) | 3.29 in (1948) |
| May 12 | 96.1°F (1978) | 42.1°F (1960) | 2.09 in (1957) |
| May 13 | 95.0°F (1955) | 48.0°F (1954) | 1.80 in (1950) |
| May 14 | 95.0°F (1955) | 48.9°F (1953) | 1.56 in (2008) |
| May 15 | 95.0°F (2022) | 45.0°F (1942) | 2.06 in (2013) |
| May 16 | 95.0°F (1996) | 48.0°F (1945) | 5.11 in (2021) |
| May 17 | 96.1°F (1956) | 44.1°F (1945) | 5.14 in (1949) |
| May 18 | 97.0°F (2018) | 50.0°F (1976) | 2.89 in (2019) |
| May 19 | 97.0°F (1956) | 52.0°F (1983) | 2.18 in (1997) |
| May 20 | 96.1°F (2005) | 50.0°F (1981) | 1.00 in (1975) |
| May 21 | 99.0°F (2005) | 51.1°F (1947) | 1.43 in (1978) |
| May 22 | 99.0°F (2005) | 52.0°F (1945) | 1.79 in (1943) |
| May 23 | 97.0°F (1996) | 53.1°F (1940) | 3.36 in (1957) |
| May 24 | 97.0°F (1996) | 52.0°F (1940) | 2.24 in (2022) |
| May 25 | 96.1°F (1984) | 52.0°F (1979) | 2.58 in (1948) |
| May 26 | 98.1°F (2024) | 54.0°F (1947) | 1.62 in (2025) |
| May 27 | 99.0°F (1958) | 51.1°F (1961) | 2.57 in (1971) |
| May 28 | 97.0°F (2011) | 54.0°F (1976) | 4.67 in (1946) |
| May 29 | 98.1°F (1951) | 48.0°F (1947) | 4.28 in (2015) |
| May 30 | 102.0°F (1985) | 48.0°F (1947) | 2.15 in (1970) |
| May 31 | 102.9°F (1985) | 55.0°F (1975) | 2.48 in (1986) |