September weather in La Grange, MO
The average temperature in La Grange in September is 66.4°F (55.6°F–77.2°F). Average precipitation: 3.49 inches.
September is a fall month in La Grange, and is warmer than the annual average of 52°F. Daily temperatures swing about 21.6°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
77.2°F
Avg Low
55.6°F
Precipitation
3.49 in
Daylight
12h 15m
September records in La Grange
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1953) | 42.1°F (1949) | 3.75 in (2012) |
| September 2 | 100.9°F (2011) | 45.0°F (1946) | 1.91 in (1935) |
| September 3 | 100.0°F (2011) | 43.0°F (1952) | 1.93 in (1993) |
| September 4 | 100.0°F (1947) | 39.0°F (1974) | 1.29 in (1991) |
| September 5 | 100.9°F (1990) | 44.1°F (1974) | 1.84 in (1971) |
| September 6 | 104.0°F (1990) | 42.1°F (1961) | 1.42 in (2018) |
| September 7 | 102.0°F (1990) | 41.0°F (1956) | 1.46 in (1942) |
| September 8 | 100.0°F (1938) | 39.0°F (1956) | 2.68 in (2018) |
| September 9 | 97.0°F (1938) | 39.9°F (2024) | 1.36 in (1941) |
| September 10 | 100.0°F (2013) | 42.1°F (1976) | 5.53 in (2014) |
| September 11 | 98.1°F (1983) | 39.0°F (1940) | 2.25 in (1986) |
| September 12 | 99.0°F (1939) | 36.0°F (1940) | 2.09 in (2020) |
| September 13 | 98.1°F (1956) | 37.9°F (1953) | 3.42 in (1977) |
| September 14 | 99.0°F (1939) | 39.0°F (1974) | 4.10 in (1961) |
| September 15 | 98.1°F (1939) | 37.9°F (1979) | 1.38 in (1967) |
| September 16 | 93.9°F (1954) | 37.0°F (2007) | 3.75 in (1978) |
| September 17 | 93.0°F (1954) | 37.0°F (1937) | 0.98 in (1952) |
| September 18 | 97.0°F (1988) | 39.9°F (1956) | 1.82 in (1932) |
| September 19 | 95.0°F (1972) | 34.0°F (1991) | 1.60 in (2010) |
| September 20 | 93.0°F (1940) | 34.0°F (1991) | 6.57 in (1986) |
| September 21 | 95.0°F (2022) | 32.0°F (1991) | 3.89 in (1947) |
| September 22 | 93.0°F (1956) | 34.0°F (1953) | 2.30 in (1970) |
| September 23 | 96.1°F (1988) | 33.1°F (1995) | 1.35 in (1893) |
| September 24 | 93.0°F (2017) | 33.1°F (1995) | 2.65 in (1961) |
| September 25 | 90.0°F (2007) | 34.0°F (1989) | 2.29 in (2009) |
| September 26 | 91.9°F (1953) | 34.0°F (1940) | 2.10 in (1976) |
| September 27 | 90.0°F (1987) | 33.1°F (1942) | 2.48 in (1936) |
| September 28 | 97.0°F (1953) | 27.0°F (1942) | 3.65 in (1999) |
| September 29 | 99.0°F (1953) | 30.9°F (1949) | 1.52 in (1954) |
| September 30 | 91.9°F (1952) | 32.0°F (1949) | 3.08 in (1986) |