September weather in Sweetwater, TX
The average temperature in Sweetwater in September is 74.5°F (63.3°F–85.7°F). Average precipitation: 2.13 inches.
September is a fall month in Sweetwater, and is warmer than the annual average of 63.6°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 12h 11m. For travel, September is a comfortable month to visit.
Avg High
85.7°F
Avg Low
63.3°F
Precipitation
2.13 in
Daylight
12h 11m
September records in Sweetwater
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 106.0°F (1951) | 48.9°F (1955) | 1.75 in (1994) |
| September 2 | 105.1°F (1947) | 51.1°F (1955) | 2.00 in (1972) |
| September 3 | 105.1°F (1947) | 50.0°F (1974) | 3.07 in (2024) |
| September 4 | 102.0°F (1947) | 50.0°F (1961) | 2.75 in (1946) |
| September 5 | 104.0°F (2000) | 48.0°F (2009) | 3.13 in (2006) |
| September 6 | 106.0°F (2023) | 48.0°F (2011) | 3.50 in (1962) |
| September 7 | 100.9°F (2012) | 46.0°F (1943) | 1.72 in (1942) |
| September 8 | 102.9°F (2012) | 48.0°F (2004) | 1.95 in (1978) |
| September 9 | 106.0°F (2023) | 46.0°F (2020) | 8.28 in (1980) |
| September 10 | 100.0°F (2023) | 46.0°F (2020) | 2.00 in (1952) |
| September 11 | 100.0°F (2000) | 44.1°F (1959) | 0.89 in (2020) |
| September 12 | 102.9°F (2000) | 45.0°F (1959) | 2.00 in (1975) |
| September 13 | 102.0°F (1978) | 48.0°F (1945) | 1.25 in (1989) |
| September 14 | 100.9°F (2011) | 44.1°F (1945) | 1.42 in (1949) |
| September 15 | 100.9°F (1965) | 46.0°F (1945) | 2.90 in (1966) |
| September 16 | 100.9°F (1965) | 48.0°F (2008) | 2.30 in (2023) |
| September 17 | 100.0°F (1997) | 45.0°F (1951) | 1.51 in (1936) |
| September 18 | 96.1°F (1945) | 46.0°F (1971) | 3.43 in (1988) |
| September 19 | 102.9°F (1956) | 41.0°F (1996) | 1.60 in (2014) |
| September 20 | 105.1°F (1953) | 39.9°F (1971) | 3.60 in (1974) |
| September 21 | 102.0°F (2021) | 39.0°F (1983) | 1.85 in (2018) |
| September 22 | 100.0°F (1998) | 44.1°F (1939) | 2.40 in (1969) |
| September 23 | 100.9°F (2025) | 45.0°F (1994) | 2.77 in (1980) |
| September 24 | 100.0°F (1953) | 35.1°F (1989) | 2.00 in (1955) |
| September 25 | 100.0°F (1977) | 37.9°F (2000) | 3.70 in (2010) |
| September 26 | 106.0°F (1953) | 37.9°F (2000) | 2.54 in (1936) |
| September 27 | 107.1°F (1953) | 37.0°F (1942) | 2.25 in (2017) |
| September 28 | 100.0°F (1953) | 39.0°F (1967) | 2.19 in (2013) |
| September 29 | 100.9°F (1977) | 37.9°F (1945) | 3.56 in (2012) |
| September 30 | 102.9°F (1977) | 37.9°F (1945) | 2.18 in (1959) |