September weather in Clarksville, TN
The average temperature in Clarksville in September is 71.7°F (59.8°F–83.6°F). Average precipitation: 3.35 inches.
September is a fall month in Clarksville, and is warmer than the annual average of 59.2°F. Daily temperatures swing about 23.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
83.6°F
Avg Low
59.8°F
Precipitation
3.35 in
Daylight
12h 13m
September records in Clarksville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 104.0°F (1925) | 48.0°F (1946) | 1.59 in (1950) |
| September 2 | 104.0°F (1953) | 44.1°F (1967) | 2.01 in (1952) |
| September 3 | 107.1°F (1925) | 48.0°F (1982) | 2.40 in (1950) |
| September 4 | 109.0°F (1925) | 44.1°F (1974) | 2.98 in (2011) |
| September 5 | 109.0°F (1925) | 46.9°F (1997) | 1.60 in (1991) |
| September 6 | 111.0°F (1925) | 41.0°F (1982) | 0.62 in (1943) |
| September 7 | 111.9°F (1925) | 41.0°F (1982) | 1.03 in (1943) |
| September 8 | 105.1°F (1925) | 45.0°F (2024) | 1.27 in (1950) |
| September 9 | 105.1°F (1939) | 48.0°F (1979) | 1.75 in (1893) |
| September 10 | 99.0°F (1980) | 39.9°F (1982) | 2.32 in (1905) |
| September 11 | 100.9°F (1925) | 42.1°F (1940) | 2.30 in (1982) |
| September 12 | 100.0°F (1939) | 39.9°F (1940) | 1.33 in (1930) |
| September 13 | 102.9°F (1939) | 39.0°F (1902) | 1.30 in (1929) |
| September 14 | 106.0°F (1931) | 37.9°F (1902) | 5.80 in (1979) |
| September 15 | 102.0°F (1927) | 39.9°F (1891) | 1.78 in (1981) |
| September 16 | 102.0°F (1931) | 34.0°F (1891) | 1.36 in (1988) |
| September 17 | 102.0°F (1927) | 39.9°F (1891) | 1.18 in (1960) |
| September 18 | 104.0°F (1931) | 39.0°F (1903) | 0.83 in (1986) |
| September 19 | 102.9°F (1931) | 39.9°F (1901) | 1.57 in (1906) |
| September 20 | 100.0°F (1931) | 32.0°F (1891) | 1.97 in (2013) |
| September 21 | 100.9°F (1955) | 36.0°F (1983) | 4.50 in (1979) |
| September 22 | 99.0°F (1931) | 37.9°F (1913) | 4.67 in (1919) |
| September 23 | 96.1°F (1931) | 28.9°F (1891) | 2.20 in (2006) |
| September 24 | 95.0°F (1933) | 37.0°F (1891) | 2.02 in (2025) |
| September 25 | 95.0°F (1920) | 37.9°F (1965) | 1.96 in (1940) |
| September 26 | 95.0°F (1920) | 36.0°F (1928) | 6.90 in (2002) |
| September 27 | 96.1°F (1939) | 37.0°F (1899) | 2.72 in (2024) |
| September 28 | 98.1°F (1939) | 30.9°F (1891) | 2.05 in (1906) |
| September 29 | 102.0°F (1953) | 34.0°F (1967) | 2.77 in (1933) |
| September 30 | 98.1°F (2019) | 35.1°F (1899) | 2.67 in (1954) |