September weather in Mount Pleasant, TX
The average temperature in Mount Pleasant in September is 75.6°F (63.1°F–88.2°F). Average precipitation: 3.62 inches.
September is a fall month in Mount Pleasant, and is warmer than the annual average of 63.6°F. Daily temperatures swing about 25.1°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 12h 12m. For travel, September is hot.
Avg High
88.2°F
Avg Low
63.1°F
Precipitation
3.62 in
Daylight
12h 12m
September records in Mount Pleasant
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 109.0°F (2000) | 52.0°F (1987) | 2.11 in (1974) |
| September 2 | 109.0°F (1939) | 52.0°F (1967) | 1.58 in (1950) |
| September 3 | 106.0°F (2000) | 51.1°F (1952) | 2.42 in (1968) |
| September 4 | 109.0°F (2000) | 48.9°F (1974) | 2.12 in (1968) |
| September 5 | 108.0°F (1998) | 48.9°F (1974) | 2.15 in (1981) |
| September 6 | 107.1°F (1925) | 48.0°F (2011) | 4.38 in (1973) |
| September 7 | 104.0°F (1925) | 46.9°F (2011) | 1.70 in (1942) |
| September 8 | 107.1°F (2023) | 46.9°F (2011) | 1.48 in (1962) |
| September 9 | 105.1°F (1925) | 50.0°F (2011) | 2.05 in (2015) |
| September 10 | 102.0°F (1954) | 48.9°F (2011) | 2.37 in (1990) |
| September 11 | 100.0°F (1939) | 48.9°F (1976) | 3.42 in (1974) |
| September 12 | 102.9°F (1930) | 45.0°F (1940) | 2.26 in (2024) |
| September 13 | 107.1°F (2011) | 44.1°F (1940) | 2.22 in (2014) |
| September 14 | 100.9°F (1939) | 45.0°F (1940) | 3.82 in (2008) |
| September 15 | 102.9°F (1939) | 46.0°F (1945) | 2.70 in (2004) |
| September 16 | 100.9°F (1980) | 44.1°F (1979) | 4.84 in (1947) |
| September 17 | 100.9°F (2025) | 45.0°F (1979) | 2.66 in (1950) |
| September 18 | 100.0°F (2025) | 41.0°F (1981) | 2.05 in (1995) |
| September 19 | 104.0°F (1937) | 39.0°F (1981) | 1.77 in (2011) |
| September 20 | 102.9°F (1937) | 39.0°F (1981) | 4.35 in (2013) |
| September 21 | 107.1°F (1937) | 41.0°F (1983) | 3.60 in (1979) |
| September 22 | 106.0°F (1937) | 36.0°F (1983) | 5.40 in (1957) |
| September 23 | 104.0°F (2022) | 36.0°F (1983) | 1.50 in (1955) |
| September 24 | 100.0°F (1931) | 37.9°F (1989) | 5.85 in (2018) |
| September 25 | 102.0°F (2022) | 39.0°F (1989) | 2.45 in (2000) |
| September 26 | 102.0°F (2005) | 39.9°F (1994) | 3.44 in (1960) |
| September 27 | 102.9°F (2005) | 37.0°F (1942) | 3.70 in (1936) |
| September 28 | 100.9°F (1938) | 37.9°F (1985) | 1.73 in (1973) |
| September 29 | 100.9°F (2023) | 37.9°F (1967) | 1.70 in (2013) |
| September 30 | 100.0°F (1938) | 37.9°F (1967) | 1.41 in (2012) |