September weather in Fairfax, MO
The average temperature in Fairfax in September is 65.7°F (53.6°F–77.8°F). Average precipitation: inches.
September is a fall month in Fairfax, and is warmer than the annual average of 51.1°F. Daily temperatures swing about 24.2°F between overnight low and afternoon high. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
77.8°F
Avg Low
53.6°F
Precipitation
in
Daylight
12h 15m
September records in Fairfax
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (1922) | 37.9°F (1949) | 2.21 in (1935) |
| September 2 | 100.9°F (1913) | 44.1°F (1924) | 2.98 in (1992) |
| September 3 | 102.0°F (1939) | 36.0°F (1974) | 3.25 in (1977) |
| September 4 | 102.9°F (1913) | 36.0°F (1974) | 3.25 in (1975) |
| September 5 | 104.0°F (1913) | 39.9°F (1962) | 1.75 in (1936) |
| September 6 | 105.1°F (1939) | 39.9°F (1950) | 1.59 in (1949) |
| September 7 | 105.1°F (1939) | 39.0°F (1944) | 4.34 in (1941) |
| September 8 | 100.0°F (1922) | 42.1°F (1950) | 1.70 in (1992) |
| September 9 | 100.0°F (1955) | 42.1°F (1943) | 2.21 in (1930) |
| September 10 | 98.1°F (1947) | 35.1°F (1976) | 1.83 in (1921) |
| September 11 | 96.1°F (1936) | 39.0°F (1940) | 3.07 in (1928) |
| September 12 | 99.0°F (1939) | 37.9°F (1975) | 3.10 in (1961) |
| September 13 | 100.0°F (1939) | 35.1°F (1974) | 1.73 in (1914) |
| September 14 | 102.0°F (1939) | 35.1°F (2007) | 1.92 in (1926) |
| September 15 | 100.9°F (1939) | 33.1°F (1993) | 1.54 in (1941) |
| September 16 | 96.1°F (1931) | 34.0°F (1993) | 2.71 in (1987) |
| September 17 | 96.1°F (1953) | 35.1°F (1943) | 1.85 in (1978) |
| September 18 | 95.0°F (1925) | 34.0°F (1973) | 3.03 in (1919) |
| September 19 | 96.1°F (1948) | 27.0°F (1991) | 1.40 in (1993) |
| September 20 | 93.9°F (2000) | 28.0°F (1991) | 2.18 in (1978) |
| September 21 | 96.1°F (1937) | 30.0°F (1918) | 1.59 in (1955) |
| September 22 | 99.0°F (1937) | 30.9°F (2000) | 1.30 in (1993) |
| September 23 | 91.0°F (1922) | 28.0°F (1983) | 1.52 in (1931) |
| September 24 | 90.0°F (1958) | 30.9°F (1991) | 2.18 in (1960) |
| September 25 | 90.0°F (1956) | 30.9°F (1991) | 1.97 in (1915) |
| September 26 | 93.0°F (1956) | 30.0°F (1926) | 1.71 in (1934) |
| September 27 | 93.9°F (1956) | 28.9°F (1942) | 2.50 in (1946) |
| September 28 | 102.0°F (1953) | 27.0°F (1942) | 1.72 in (1973) |
| September 29 | 90.0°F (1953) | 25.0°F (1984) | 1.91 in (1986) |
| September 30 | 91.9°F (1937) | 32.0°F (1912) | 2.52 in (1961) |