May weather in Hallettsville, TX
The average temperature in Hallettsville in May is 78.4°F (68.6°F–88.2°F). Average precipitation: 4.40 inches.
May is a spring month in Hallettsville, and is warmer than the annual average of 71.7°F. Daily temperatures swing about 19.6°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 13h 29m. For travel, May is hot.
Avg High
88.2°F
Avg Low
68.6°F
Precipitation
4.40 in
Daylight
13h 29m
May records in Hallettsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 93.0°F (2002) | 43.0°F (1908) | 4.22 in (2021) |
| May 2 | 97.0°F (1964) | 37.9°F (1929) | 2.78 in (1969) |
| May 3 | 95.0°F (1946) | 44.1°F (2013) | 2.47 in (1958) |
| May 4 | 95.0°F (1928) | 42.1°F (1954) | 3.64 in (1969) |
| May 5 | 97.0°F (1906) | 46.0°F (1944) | 2.38 in (1993) |
| May 6 | 96.1°F (1929) | 48.0°F (1928) | 1.89 in (2012) |
| May 7 | 97.0°F (1929) | 46.9°F (1992) | 4.50 in (1919) |
| May 8 | 96.1°F (1923) | 48.0°F (1948) | 2.59 in (1995) |
| May 9 | 95.0°F (1998) | 45.0°F (1984) | 2.25 in (1997) |
| May 10 | 97.0°F (1934) | 46.9°F (1961) | 2.41 in (2023) |
| May 11 | 93.9°F (1928) | 46.0°F (1952) | 3.15 in (1965) |
| May 12 | 96.1°F (1945) | 48.9°F (1931) | 5.60 in (1972) |
| May 13 | 96.1°F (2025) | 46.9°F (1971) | 4.25 in (1982) |
| May 14 | 97.0°F (1925) | 46.0°F (1960) | 2.44 in (1953) |
| May 15 | 98.1°F (1925) | 46.0°F (2014) | 2.27 in (1900) |
| May 16 | 99.0°F (2022) | 48.0°F (1967) | 5.15 in (1992) |
| May 17 | 98.1°F (1925) | 46.0°F (1945) | 5.25 in (1914) |
| May 18 | 102.0°F (1925) | 48.0°F (1945) | 3.25 in (1955) |
| May 19 | 97.0°F (1925) | 50.0°F (1945) | 2.47 in (2016) |
| May 20 | 98.1°F (1925) | 48.0°F (1894) | 2.38 in (1983) |
| May 21 | 98.1°F (2022) | 52.0°F (1926) | 2.66 in (1916) |
| May 22 | 97.0°F (1925) | 54.0°F (1947) | 1.65 in (1979) |
| May 23 | 99.0°F (1925) | 53.1°F (1967) | 5.25 in (1936) |
| May 24 | 100.9°F (1925) | 52.0°F (1893) | 4.75 in (1936) |
| May 25 | 98.1°F (1896) | 53.1°F (1910) | 3.40 in (1948) |
| May 26 | 99.0°F (1928) | 55.0°F (1930) | 2.20 in (1976) |
| May 27 | 100.0°F (1928) | 52.0°F (1901) | 4.75 in (1952) |
| May 28 | 100.0°F (1928) | 53.1°F (1961) | 2.86 in (1999) |
| May 29 | 99.0°F (1928) | 53.1°F (1934) | 2.90 in (1929) |
| May 30 | 99.0°F (2003) | 53.1°F (1934) | 2.85 in (1995) |
| May 31 | 100.0°F (1956) | 48.9°F (1984) | 1.95 in (1946) |