September weather in Flatonia, TX
The average temperature in Flatonia in September is 78.4°F (67.2°F–89.5°F). Average precipitation: 3.39 inches.
September is a fall month in Flatonia, and is warmer than the annual average of 67.9°F. Daily temperatures swing about 22.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 10m. For travel, September is hot.
Avg High
89.5°F
Avg Low
67.2°F
Precipitation
3.39 in
Daylight
12h 10m
September records in Flatonia
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (1927) | 61.0°F (1915) | 3.58 in (1981) |
| September 2 | 104.0°F (2000) | 59.0°F (1915) | 2.10 in (1970) |
| September 3 | 102.9°F (2000) | 59.0°F (1919) | 1.81 in (1923) |
| September 4 | 108.0°F (2000) | 55.9°F (1974) | 3.31 in (1984) |
| September 5 | 107.1°F (2000) | 48.9°F (1974) | 4.70 in (1968) |
| September 6 | 104.0°F (1933) | 50.0°F (1974) | 1.75 in (1967) |
| September 7 | 102.9°F (1913) | 55.0°F (1974) | 2.20 in (2010) |
| September 8 | 100.9°F (1930) | 54.0°F (1966) | 3.08 in (1959) |
| September 9 | 100.9°F (1910) | 57.0°F (1918) | 3.10 in (1952) |
| September 10 | 102.0°F (1917) | 60.1°F (1918) | 3.32 in (1962) |
| September 11 | 100.9°F (1912) | 57.0°F (1968) | 3.83 in (1971) |
| September 12 | 102.0°F (1912) | 51.1°F (1940) | 8.20 in (1961) |
| September 13 | 106.0°F (1918) | 52.0°F (1940) | 3.82 in (1974) |
| September 14 | 102.0°F (1912) | 55.0°F (1940) | 1.84 in (1936) |
| September 15 | 102.0°F (2019) | 54.0°F (1940) | 2.10 in (1968) |
| September 16 | 100.0°F (1911) | 55.9°F (1989) | 2.30 in (2014) |
| September 17 | 102.9°F (1933) | 57.0°F (1961) | 3.70 in (1987) |
| September 18 | 104.0°F (1933) | 51.1°F (1981) | 2.03 in (2006) |
| September 19 | 102.9°F (1933) | 53.1°F (1981) | 2.64 in (1983) |
| September 20 | 102.9°F (1956) | 51.1°F (1918) | 2.82 in (2019) |
| September 21 | 102.9°F (1933) | 50.0°F (1913) | 5.90 in (1967) |
| September 22 | 102.9°F (1926) | 48.9°F (1983) | 3.10 in (1957) |
| September 23 | 100.9°F (1933) | 44.1°F (1975) | 3.51 in (1957) |
| September 24 | 100.9°F (2019) | 46.0°F (1975) | 1.58 in (1932) |
| September 25 | 100.9°F (1931) | 46.9°F (1975) | 9.52 in (1957) |
| September 26 | 106.0°F (2005) | 46.9°F (1975) | 2.52 in (1935) |
| September 27 | 102.9°F (2005) | 41.0°F (1942) | 1.68 in (1946) |
| September 28 | 102.9°F (2005) | 43.0°F (1967) | 1.48 in (1976) |
| September 29 | 102.9°F (2005) | 46.0°F (1908) | 1.82 in (2009) |
| September 30 | 98.1°F (2019) | 45.0°F (1974) | 2.30 in (1985) |