January weather in Mount Vernon, TX
The average temperature in Mount Vernon in January is 44.9°F (34.2°F–55.6°F). Average precipitation: 3.41 inches. Average snowfall is 0.5 inches.
January is a winter month in Mount Vernon, and is cooler than the annual average of 64.6°F. Daily temperatures swing about 21.4°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 10h 2m. For travel, January is cool.
Avg High
55.6°F
Avg Low
34.2°F
Precipitation
3.41 in
Snow
0.5 in
January records in Mount Vernon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 73.0°F (2006) | 10.0°F (1977) | 2.09 in (2021) |
| January 2 | 82.0°F (2006) | 9.0°F (1979) | 1.11 in (2015) |
| January 3 | 75.9°F (2009) | 10.0°F (1979) | 4.13 in (2015) |
| January 4 | 80.1°F (2006) | 14.0°F (2002) | 1.13 in (2019) |
| January 5 | 80.1°F (1997) | 14.0°F (1972) | 1.02 in (1998) |
| January 6 | 73.9°F (1978) | 14.0°F (1972) | 1.23 in (2009) |
| January 7 | 77.0°F (2026) | 10.9°F (1968) | 1.33 in (2021) |
| January 8 | 75.9°F (1978) | 8.1°F (1976) | 0.85 in (2000) |
| January 9 | 78.1°F (1969) | 9.0°F (1976) | 1.51 in (2012) |
| January 10 | 75.9°F (2006) | 8.1°F (1977) | 1.32 in (1991) |
| January 11 | 77.0°F (2017) | 1.9°F (1982) | 3.16 in (2020) |
| January 12 | 81.0°F (2023) | 1.9°F (1982) | 1.31 in (1978) |
| January 13 | 80.1°F (2017) | 10.0°F (1973) | 1.19 in (2007) |
| January 14 | 75.0°F (1996) | 10.9°F (1979) | 1.69 in (2007) |
| January 15 | 73.9°F (1971) | 14.0°F (1979) | 1.97 in (2007) |
| January 16 | 75.9°F (2020) | 9.0°F (2024) | 1.80 in (2017) |
| January 17 | 73.9°F (2000) | 10.0°F (1977) | 1.24 in (1994) |
| January 18 | 79.0°F (2023) | 10.9°F (1977) | 1.30 in (1990) |
| January 19 | 75.9°F (1974) | 8.1°F (1984) | 1.98 in (1990) |
| January 20 | 77.0°F (1972) | 6.1°F (1985) | 2.02 in (1979) |
| January 21 | 79.0°F (1986) | 6.1°F (1985) | 0.68 in (2007) |
| January 22 | 77.0°F (1982) | 15.1°F (1984) | 1.10 in (2006) |
| January 23 | 80.1°F (1969) | 17.1°F (2008) | 1.70 in (2024) |
| January 24 | 75.9°F (1972) | 18.0°F (2003) | 1.24 in (2026) |
| January 25 | 79.0°F (2017) | 14.0°F (2026) | 1.80 in (2026) |
| January 26 | 73.9°F (1971) | 12.9°F (2026) | 1.34 in (2012) |
| January 27 | 73.9°F (1999) | 12.9°F (2026) | 1.39 in (1995) |
| January 28 | 81.0°F (1975) | 16.0°F (1997) | 1.63 in (2000) |
| January 29 | 79.0°F (2015) | 12.9°F (1977) | 1.51 in (2006) |
| January 30 | 77.0°F (2002) | 16.0°F (1977) | 1.72 in (2025) |
| January 31 | 80.1°F (1971) | 8.1°F (1977) | 0.88 in (1968) |