September weather in Newnan, GA
The average temperature in Newnan in September is 72.7°F (61.5°F–84.0°F). Average precipitation: 3.87 inches.
September is a fall month in Newnan, and is warmer than the annual average of 61.4°F. Daily temperatures swing about 22.5°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 12m. For travel, September is a comfortable month to visit.
Avg High
84.0°F
Avg Low
61.5°F
Precipitation
3.87 in
Daylight
12h 12m
September records in Newnan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1907) | 54.0°F (1903) | 3.14 in (2021) |
| September 2 | 100.9°F (1921) | 54.0°F (1934) | 1.14 in (1982) |
| September 3 | 104.0°F (1925) | 55.0°F (1936) | 1.79 in (1924) |
| September 4 | 107.1°F (1925) | 52.0°F (1982) | 1.85 in (1988) |
| September 5 | 108.0°F (1925) | 51.1°F (2010) | 2.42 in (1988) |
| September 6 | 102.0°F (1925) | 48.9°F (1997) | 1.80 in (1908) |
| September 7 | 102.9°F (1925) | 46.9°F (2017) | 2.31 in (2004) |
| September 8 | 107.1°F (1925) | 46.9°F (2017) | 1.38 in (1950) |
| September 9 | 106.0°F (1925) | 48.9°F (2017) | 1.53 in (1957) |
| September 10 | 98.1°F (2019) | 48.0°F (1924) | 2.71 in (1930) |
| September 11 | 97.0°F (1919) | 46.0°F (1976) | 2.52 in (1944) |
| September 12 | 98.1°F (1921) | 48.0°F (1940) | 4.52 in (2017) |
| September 13 | 98.1°F (1927) | 48.9°F (1917) | 0.57 in (1952) |
| September 14 | 98.1°F (1927) | 46.0°F (1902) | 2.14 in (2002) |
| September 15 | 100.0°F (1927) | 43.0°F (1985) | 2.64 in (1903) |
| September 16 | 99.0°F (1921) | 48.0°F (1961) | 1.55 in (2021) |
| September 17 | 100.9°F (1925) | 46.9°F (1985) | 3.80 in (2004) |
| September 18 | 102.0°F (1925) | 44.1°F (1981) | 5.79 in (1901) |
| September 19 | 104.0°F (1925) | 41.0°F (1981) | 1.86 in (2016) |
| September 20 | 102.9°F (1925) | 43.0°F (1981) | 1.76 in (1953) |
| September 21 | 100.9°F (1925) | 43.0°F (1918) | 2.49 in (2002) |
| September 22 | 100.0°F (1925) | 39.0°F (1983) | 4.73 in (2002) |
| September 23 | 99.0°F (1925) | 37.0°F (1982) | 3.55 in (2011) |
| September 24 | 98.1°F (1925) | 39.0°F (1983) | 1.56 in (2001) |
| September 25 | 97.0°F (1921) | 41.0°F (1990) | 4.10 in (1956) |
| September 26 | 95.0°F (1986) | 42.1°F (2001) | 2.48 in (1989) |
| September 27 | 93.0°F (1954) | 41.0°F (2001) | 2.05 in (1953) |
| September 28 | 95.0°F (2019) | 41.0°F (1985) | 2.18 in (2004) |
| September 29 | 96.1°F (1911) | 36.0°F (1967) | 1.66 in (1999) |
| September 30 | 98.1°F (1904) | 32.0°F (1967) | 3.81 in (1936) |