May weather in Jefferson, TX
The average temperature in Jefferson in May is 72.3°F (61.2°F–83.4°F). Average precipitation: 5.11 inches.
May is a spring month in Jefferson, and is warmer than the annual average of 64.7°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 41m. For travel, May is a wet month.
Avg High
83.4°F
Avg Low
61.2°F
Precipitation
5.11 in
Daylight
13h 41m
May records in Jefferson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (1987) | 37.9°F (2014) | 3.92 in (2025) |
| May 2 | 90.0°F (2010) | 46.0°F (1994) | 3.28 in (2019) |
| May 3 | 89.1°F (2011) | 39.9°F (2013) | 3.35 in (2009) |
| May 4 | 90.0°F (2010) | 37.9°F (2013) | 2.60 in (2000) |
| May 5 | 89.1°F (1906) | 39.9°F (2013) | 3.10 in (1935) |
| May 6 | 91.9°F (2010) | 44.1°F (2013) | 2.72 in (2001) |
| May 7 | 93.0°F (1984) | 39.0°F (1992) | 4.22 in (1905) |
| May 8 | 90.0°F (2024) | 39.9°F (1992) | 2.09 in (2012) |
| May 9 | 91.0°F (2009) | 42.1°F (1992) | 3.00 in (2014) |
| May 10 | 93.9°F (2011) | 45.0°F (1906) | 3.43 in (1936) |
| May 11 | 91.0°F (2011) | 46.9°F (1997) | 2.35 in (1948) |
| May 12 | 91.9°F (2010) | 48.0°F (1997) | 3.10 in (2017) |
| May 13 | 91.0°F (2010) | 39.9°F (1997) | 2.89 in (1905) |
| May 14 | 91.9°F (2009) | 44.1°F (1997) | 6.47 in (2008) |
| May 15 | 93.0°F (1984) | 42.1°F (2014) | 1.25 in (1994) |
| May 16 | 91.0°F (1995) | 46.0°F (2011) | 2.56 in (1930) |
| May 17 | 91.0°F (2018) | 46.0°F (2011) | 4.11 in (1947) |
| May 18 | 91.0°F (2018) | 46.9°F (2009) | 3.45 in (1942) |
| May 19 | 91.9°F (1998) | 46.9°F (2009) | 3.78 in (1906) |
| May 20 | 91.9°F (1998) | 48.9°F (2009) | 1.58 in (1935) |
| May 21 | 91.0°F (2018) | 50.0°F (1994) | 1.65 in (1967) |
| May 22 | 91.9°F (2022) | 48.0°F (2001) | 1.73 in (1905) |
| May 23 | 93.0°F (1998) | 48.0°F (1990) | 4.07 in (1944) |
| May 24 | 93.0°F (1996) | 52.0°F (1990) | 2.25 in (1952) |
| May 25 | 93.0°F (2010) | 51.1°F (2001) | 1.32 in (1946) |
| May 26 | 95.0°F (2011) | 48.9°F (1988) | 2.80 in (1968) |
| May 27 | 93.9°F (2010) | 44.1°F (1988) | 1.42 in (2009) |
| May 28 | 95.0°F (2024) | 48.0°F (1988) | 2.32 in (1963) |
| May 29 | 97.0°F (2011) | 50.0°F (1984) | 1.50 in (1954) |
| May 30 | 97.0°F (2011) | 44.1°F (1984) | 2.27 in (1994) |
| May 31 | 97.0°F (1998) | 45.0°F (1984) | 3.12 in (1967) |