March weather in Mount Vernon, TX
The average temperature in Mount Vernon in March is 56.3°F (44.5°F–68.1°F). Average precipitation: 4.52 inches.
March is a spring month in Mount Vernon, and is cooler than the annual average of 64.6°F. Daily temperatures swing about 23.6°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 11h 47m. For travel, March is a comfortable month to visit.
Avg High
68.1°F
Avg Low
44.5°F
Precipitation
4.52 in
Snow
0.1 in
March records in Mount Vernon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 82.9°F (2023) | 23.0°F (1986) | 1.60 in (2018) |
| March 2 | 88.0°F (2006) | 12.0°F (1980) | 1.06 in (1993) |
| March 3 | 82.9°F (1976) | 10.9°F (1980) | 2.08 in (1977) |
| March 4 | 88.0°F (1994) | 15.1°F (2002) | 1.24 in (2025) |
| March 5 | 82.0°F (1976) | 21.0°F (1978) | 1.57 in (2015) |
| March 6 | 87.1°F (1991) | 19.9°F (1989) | 1.24 in (1982) |
| March 7 | 82.9°F (1974) | 21.0°F (1989) | 1.77 in (1978) |
| March 8 | 84.0°F (1992) | 19.9°F (1996) | 4.36 in (1990) |
| March 9 | 82.9°F (2009) | 16.0°F (1996) | 3.60 in (2016) |
| March 10 | 82.9°F (1993) | 21.9°F (1998) | 2.34 in (1992) |
| March 11 | 90.0°F (2006) | 21.0°F (1969) | 1.48 in (1968) |
| March 12 | 86.0°F (1967) | 24.1°F (1969) | 2.35 in (2009) |
| March 13 | 90.0°F (2006) | 25.0°F (1998) | 1.79 in (1999) |
| March 14 | 84.9°F (1967) | 23.0°F (1975) | 1.25 in (1995) |
| March 15 | 88.0°F (2016) | 23.0°F (1975) | 1.33 in (2022) |
| March 16 | 84.9°F (2016) | 30.9°F (1978) | 1.76 in (1993) |
| March 17 | 84.9°F (2018) | 33.1°F (2005) | 2.05 in (1987) |
| March 18 | 87.1°F (1982) | 21.9°F (1980) | 1.87 in (1992) |
| March 19 | 84.0°F (2011) | 28.0°F (1981) | 3.41 in (2008) |
| March 20 | 86.0°F (2011) | 27.0°F (1971) | 3.08 in (2012) |
| March 21 | 88.0°F (2017) | 27.0°F (1986) | 1.47 in (2012) |
| March 22 | 89.1°F (2026) | 30.0°F (1968) | 1.91 in (2024) |
| March 23 | 89.1°F (2026) | 21.0°F (1968) | 1.10 in (2021) |
| March 24 | 87.1°F (1995) | 28.9°F (1968) | 1.72 in (1973) |
| March 25 | 88.0°F (2023) | 28.9°F (1996) | 2.67 in (2021) |
| March 26 | 87.1°F (2020) | 28.0°F (2013) | 1.00 in (1967) |
| March 27 | 89.1°F (2011) | 28.0°F (2013) | 1.95 in (1994) |
| March 28 | 89.1°F (2022) | 32.0°F (1983) | 1.81 in (1977) |
| March 29 | 87.1°F (1967) | 33.1°F (2009) | 1.38 in (1989) |
| March 30 | 86.0°F (1967) | 28.9°F (1987) | 1.79 in (1979) |
| March 31 | 84.9°F (1974) | 27.0°F (1987) | 2.61 in (2007) |