September weather in Fredericktown, MO
The average temperature in Fredericktown in September is 66.9°F (53.8°F–80.1°F). Average precipitation: 3.47 inches.
September is a fall month in Fredericktown, and is warmer than the annual average of 54.5°F. Daily temperatures swing about 26.3°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
80.1°F
Avg Low
53.8°F
Precipitation
3.47 in
Daylight
12h 14m
September records in Fredericktown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1980) | 37.9°F (1967) | 2.63 in (1959) |
| September 2 | 100.0°F (1980) | 39.0°F (1967) | 3.49 in (2003) |
| September 3 | 99.0°F (2011) | 41.0°F (1967) | 1.65 in (1988) |
| September 4 | 100.0°F (2011) | 41.0°F (1974) | 1.92 in (2008) |
| September 5 | 98.1°F (1990) | 42.1°F (1974) | 2.45 in (2021) |
| September 6 | 99.0°F (1990) | 35.1°F (1988) | 1.55 in (2009) |
| September 7 | 100.0°F (1990) | 34.0°F (1988) | 1.75 in (2007) |
| September 8 | 99.0°F (1980) | 37.0°F (1988) | 1.76 in (2018) |
| September 9 | 100.0°F (1980) | 43.0°F (1979) | 2.81 in (2007) |
| September 10 | 97.0°F (1980) | 39.0°F (1976) | 3.49 in (2010) |
| September 11 | 96.1°F (1983) | 37.9°F (1976) | 2.06 in (1958) |
| September 12 | 95.0°F (2013) | 39.0°F (1968) | 1.64 in (1947) |
| September 13 | 98.1°F (1980) | 36.0°F (1964) | 5.35 in (1949) |
| September 14 | 99.0°F (1980) | 35.1°F (1964) | 3.41 in (1982) |
| September 15 | 98.1°F (1971) | 37.0°F (1979) | 1.86 in (1925) |
| September 16 | 91.0°F (1991) | 37.0°F (1966) | 2.74 in (1996) |
| September 17 | 93.9°F (2019) | 34.0°F (1981) | 1.78 in (2016) |
| September 18 | 93.0°F (1983) | 34.0°F (1981) | 1.36 in (1970) |
| September 19 | 93.0°F (1983) | 34.0°F (1973) | 2.87 in (1988) |
| September 20 | 93.9°F (1972) | 35.1°F (1991) | 3.74 in (1924) |
| September 21 | 93.0°F (1963) | 33.1°F (1991) | 2.75 in (1967) |
| September 22 | 91.0°F (1980) | 32.0°F (1983) | 5.62 in (1965) |
| September 23 | 91.9°F (1980) | 28.0°F (1995) | 2.94 in (1984) |
| September 24 | 91.0°F (2017) | 23.0°F (1989) | 2.85 in (2024) |
| September 25 | 91.0°F (2017) | 30.0°F (1989) | 1.52 in (1993) |
| September 26 | 91.0°F (1998) | 30.9°F (1989) | 1.72 in (2011) |
| September 27 | 90.0°F (1981) | 30.9°F (1989) | 2.10 in (1959) |
| September 28 | 93.0°F (1998) | 30.0°F (1989) | 0.80 in (1924) |
| September 29 | 91.9°F (1998) | 28.9°F (1967) | 2.42 in (1933) |
| September 30 | 93.0°F (1998) | 30.9°F (1963) | 3.44 in (1955) |