May weather in Decatur, TX
The average temperature in Decatur in May is 72.5°F (62.2°F–82.7°F). Average precipitation: 4.86 inches.
May is a spring month in Decatur, and is warmer than the annual average of 65°F. Daily temperatures swing about 20.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 43m. For travel, May is a comfortable month to visit.
Avg High
82.7°F
Avg Low
62.2°F
Precipitation
4.86 in
Daylight
13h 43m
May records in Decatur
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 96.1°F (2021) | 30.0°F (1907) | 1.95 in (1956) |
| May 2 | 96.1°F (2021) | 30.0°F (1908) | 2.40 in (1990) |
| May 3 | 98.1°F (2021) | 30.0°F (1907) | 2.20 in (1990) |
| May 4 | 99.0°F (2021) | 30.9°F (1907) | 1.20 in (1989) |
| May 5 | 97.0°F (1907) | 32.0°F (1907) | 1.40 in (2001) |
| May 6 | 98.1°F (1907) | 34.0°F (1907) | 1.75 in (1995) |
| May 7 | 97.0°F (2021) | 37.9°F (1907) | 1.25 in (1907) |
| May 8 | 98.1°F (1907) | 35.1°F (1907) | 2.11 in (2007) |
| May 9 | 99.0°F (2021) | 46.9°F (1908) | 2.18 in (1981) |
| May 10 | 93.9°F (2006) | 45.0°F (1908) | 3.65 in (2002) |
| May 11 | 93.0°F (2016) | 37.9°F (1908) | 3.96 in (2015) |
| May 12 | 91.0°F (2022) | 41.0°F (2008) | 3.75 in (1994) |
| May 13 | 96.1°F (2022) | 43.0°F (2008) | 7.90 in (1982) |
| May 14 | 96.1°F (2022) | 46.0°F (2011) | 3.45 in (1985) |
| May 15 | 96.1°F (2022) | 44.1°F (2014) | 2.84 in (1975) |
| May 16 | 90.0°F (2017) | 46.9°F (2011) | 2.69 in (2013) |
| May 17 | 93.9°F (2022) | 46.0°F (2011) | 2.14 in (1949) |
| May 18 | 96.1°F (2022) | 45.0°F (2009) | 1.58 in (1957) |
| May 19 | 95.0°F (2018) | 46.0°F (2009) | 2.50 in (1955) |
| May 20 | 95.0°F (2006) | 46.9°F (2009) | 4.57 in (2015) |
| May 21 | 93.9°F (2005) | 39.0°F (1908) | 2.40 in (1985) |
| May 22 | 97.0°F (2005) | 48.9°F (1907) | 3.20 in (1979) |
| May 23 | 96.1°F (2005) | 35.1°F (1907) | 1.64 in (2020) |
| May 24 | 91.0°F (1908) | 39.9°F (1907) | 3.50 in (2022) |
| May 25 | 93.9°F (2005) | 37.9°F (1907) | 3.68 in (1986) |
| May 26 | 93.0°F (2017) | 39.9°F (1907) | 1.79 in (2007) |
| May 27 | 99.0°F (2017) | 42.1°F (1907) | 2.45 in (1981) |
| May 28 | 98.1°F (2017) | 50.0°F (1907) | 2.17 in (2008) |
| May 29 | 93.9°F (2011) | 48.9°F (1907) | 4.75 in (1987) |
| May 30 | 95.0°F (2018) | 50.0°F (1907) | 2.30 in (2019) |
| May 31 | 96.1°F (2018) | 53.1°F (1907) | 2.24 in (1976) |