September weather in Jellico, TN
The average temperature in Jellico in September is 68.2°F (56.7°F–79.8°F). Average precipitation: 3.64 inches.
September is a fall month in Jellico, and is warmer than the annual average of 56°F. Daily temperatures swing about 23.1°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 13m. For travel, September is one of the best months of the year to visit.
Avg High
79.8°F
Avg Low
56.7°F
Precipitation
3.64 in
Daylight
12h 13m
September records in Jellico
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (2008) | 51.1°F (2025) | 1.56 in (2017) |
| September 2 | 91.9°F (2011) | 51.1°F (2025) | 2.13 in (1982) |
| September 3 | 93.9°F (2011) | 52.0°F (2005) | 1.72 in (1986) |
| September 4 | 95.0°F (2011) | 50.0°F (2010) | 2.10 in (2003) |
| September 5 | 93.0°F (2007) | 46.0°F (2010) | 1.89 in (2011) |
| September 6 | 93.9°F (2007) | 46.0°F (2010) | 2.10 in (2011) |
| September 7 | 91.0°F (2002) | 46.0°F (2010) | 0.71 in (1975) |
| September 8 | 91.0°F (2002) | 43.0°F (2024) | 2.23 in (2004) |
| September 9 | 91.0°F (2002) | 43.0°F (2024) | 1.15 in (1997) |
| September 10 | 91.9°F (2002) | 43.0°F (2024) | 1.14 in (1976) |
| September 11 | 96.1°F (2019) | 44.1°F (2024) | 2.65 in (1992) |
| September 12 | 95.0°F (2019) | 48.0°F (2002) | 1.42 in (1971) |
| September 13 | 95.0°F (2019) | 48.0°F (2002) | 1.30 in (1983) |
| September 14 | 93.9°F (2019) | 44.1°F (2015) | 1.25 in (1957) |
| September 15 | 90.0°F (2018) | 44.1°F (2015) | 1.12 in (1952) |
| September 16 | 91.9°F (2019) | 41.0°F (2000) | 1.60 in (2009) |
| September 17 | 91.0°F (2019) | 37.0°F (2000) | 1.85 in (2004) |
| September 18 | 90.0°F (2019) | 37.0°F (2000) | 2.10 in (2012) |
| September 19 | 91.9°F (2019) | 44.1°F (2012) | 2.73 in (1992) |
| September 20 | 91.0°F (2005) | 44.1°F (2012) | 1.55 in (1969) |
| September 21 | 90.0°F (2005) | 41.0°F (2006) | 2.50 in (1954) |
| September 22 | 90.0°F (2005) | 41.0°F (2020) | 1.91 in (1979) |
| September 23 | 90.0°F (2005) | 41.0°F (2012) | 2.26 in (1989) |
| September 24 | 91.0°F (2007) | 37.0°F (2012) | 1.74 in (1975) |
| September 25 | 90.0°F (2005) | 42.1°F (2001) | 1.49 in (1991) |
| September 26 | 90.0°F (2007) | 37.9°F (2001) | 1.45 in (2009) |
| September 27 | 87.1°F (2007) | 37.0°F (2001) | 1.87 in (2024) |
| September 28 | 87.1°F (2019) | 37.0°F (2001) | 2.00 in (2018) |
| September 29 | 91.0°F (2019) | 37.0°F (2022) | 2.30 in (1964) |
| September 30 | 93.0°F (2019) | 37.0°F (2003) | 1.98 in (1955) |