August weather in Mount Vernon, TX
The average temperature in Mount Vernon in August is 83.3°F (71.9°F–94.6°F). Average precipitation: 3.10 inches.
August is a summer month in Mount Vernon, and is warmer than the annual average of 64.6°F. Daily temperatures swing about 22.7°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 13h 14m. For travel, August is hot.
Avg High
94.6°F
Avg Low
71.9°F
Precipitation
3.10 in
Daylight
13h 14m
August records in Mount Vernon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 106.0°F (1986) | 52.0°F (2007) | 2.71 in (1996) |
| August 2 | 108.0°F (1998) | 61.0°F (1973) | 3.88 in (2009) |
| August 3 | 111.9°F (2011) | 62.1°F (1973) | 2.52 in (1979) |
| August 4 | 111.0°F (2011) | 57.9°F (1976) | 0.65 in (1975) |
| August 5 | 111.0°F (2011) | 59.0°F (1976) | 0.70 in (2005) |
| August 6 | 109.0°F (2011) | 64.9°F (1973) | 1.18 in (2020) |
| August 7 | 108.0°F (2011) | 60.1°F (1997) | 1.12 in (2017) |
| August 8 | 107.1°F (2011) | 60.1°F (1997) | 4.85 in (1997) |
| August 9 | 106.0°F (2011) | 55.9°F (1989) | 1.55 in (2008) |
| August 10 | 108.0°F (2011) | 57.9°F (1989) | 0.93 in (1996) |
| August 11 | 107.1°F (2011) | 59.0°F (1989) | 1.02 in (1993) |
| August 12 | 106.0°F (2006) | 55.0°F (1967) | 1.75 in (1966) |
| August 13 | 106.0°F (2011) | 48.9°F (1967) | 5.70 in (2017) |
| August 14 | 104.0°F (2006) | 55.0°F (1967) | 1.44 in (2002) |
| August 15 | 105.1°F (2006) | 55.9°F (1967) | 1.42 in (2005) |
| August 16 | 107.1°F (2006) | 59.0°F (1992) | 1.27 in (2021) |
| August 17 | 106.0°F (2011) | 57.9°F (1992) | 1.84 in (2020) |
| August 18 | 108.0°F (2011) | 57.0°F (1992) | 1.37 in (1967) |
| August 19 | 108.0°F (2011) | 61.0°F (1992) | 3.83 in (2009) |
| August 20 | 108.0°F (2011) | 61.0°F (1976) | 0.92 in (1977) |
| August 21 | 109.9°F (2011) | 60.1°F (1976) | 2.27 in (1995) |
| August 22 | 106.0°F (2006) | 61.0°F (1981) | 5.12 in (2022) |
| August 23 | 106.0°F (2010) | 60.1°F (2012) | 3.23 in (1970) |
| August 24 | 106.0°F (2005) | 61.0°F (1966) | 0.63 in (2008) |
| August 25 | 106.0°F (2011) | 55.9°F (1966) | 0.73 in (1969) |
| August 26 | 104.0°F (2006) | 57.9°F (1966) | 0.07 in (1974) |
| August 27 | 106.0°F (2011) | 57.0°F (2025) | 0.51 in (2020) |
| August 28 | 104.0°F (2005) | 52.0°F (2025) | 2.55 in (2019) |
| August 29 | 106.0°F (2011) | 53.1°F (1986) | 1.56 in (2025) |
| August 30 | 102.9°F (1998) | 54.0°F (1986) | 1.05 in (2014) |
| August 31 | 104.0°F (2011) | 55.9°F (1988) | 1.83 in (2001) |