September weather in Jamestown, TN
The average temperature in Jamestown in September is 67.0°F (55.9°F–78.1°F). Average precipitation: 4.00 inches.
September is a fall month in Jamestown, and is warmer than the annual average of 55.2°F. Daily temperatures swing about 22.2°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
78.1°F
Avg Low
55.9°F
Precipitation
4.00 in
Daylight
12h 13m
September records in Jamestown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.0°F (2011) | 54.0°F (2009) | 0.98 in (2001) |
| September 2 | 93.0°F (2011) | 54.0°F (2019) | 1.65 in (1982) |
| September 3 | 95.0°F (2011) | 52.0°F (2005) | 2.01 in (1982) |
| September 4 | 95.0°F (2011) | 46.0°F (2017) | 2.94 in (2003) |
| September 5 | 91.9°F (2007) | 44.1°F (2010) | 3.86 in (2011) |
| September 6 | 87.1°F (2015) | 45.0°F (2010) | 2.35 in (2011) |
| September 7 | 90.0°F (2007) | 43.0°F (2017) | 1.25 in (1977) |
| September 8 | 89.1°F (2007) | 43.0°F (2017) | 1.28 in (2004) |
| September 9 | 89.1°F (2016) | 43.0°F (2017) | 0.61 in (1997) |
| September 10 | 89.1°F (2016) | 48.9°F (2012) | 2.03 in (2015) |
| September 11 | 93.9°F (2019) | 50.0°F (2012) | 1.51 in (1960) |
| September 12 | 89.1°F (2019) | 48.9°F (2007) | 1.95 in (1965) |
| September 13 | 91.0°F (2019) | 46.9°F (2015) | 1.32 in (1966) |
| September 14 | 93.0°F (2019) | 42.1°F (2015) | 1.36 in (1979) |
| September 15 | 88.0°F (2019) | 43.0°F (2015) | 1.73 in (1981) |
| September 16 | 90.0°F (2019) | 43.0°F (2007) | 4.18 in (1962) |
| September 17 | 91.0°F (2019) | 45.0°F (2007) | 3.75 in (2004) |
| September 18 | 88.0°F (2019) | 48.9°F (2004) | 3.17 in (2012) |
| September 19 | 88.0°F (2019) | 45.0°F (2012) | 2.01 in (2021) |
| September 20 | 88.0°F (2019) | 44.1°F (2006) | 1.52 in (1969) |
| September 21 | 88.0°F (2018) | 39.9°F (2006) | 2.80 in (1958) |
| September 22 | 90.0°F (2010) | 39.9°F (2006) | 1.00 in (2021) |
| September 23 | 89.1°F (2007) | 37.9°F (2012) | 1.91 in (2003) |
| September 24 | 89.1°F (2007) | 36.0°F (2012) | 2.52 in (1975) |
| September 25 | 88.0°F (2007) | 37.0°F (2012) | 1.70 in (1997) |
| September 26 | 87.1°F (2016) | 37.0°F (2022) | 1.83 in (2002) |
| September 27 | 84.0°F (2017) | 43.0°F (2011) | 1.57 in (2009) |
| September 28 | 90.0°F (2019) | 43.0°F (2011) | 2.64 in (1967) |
| September 29 | 90.0°F (2019) | 41.0°F (2006) | 3.48 in (1964) |
| September 30 | 88.0°F (2019) | 41.0°F (2009) | 4.35 in (1955) |