September weather in Morristown, TN
The average temperature in Morristown in September is 69.6°F (58.6°F–80.6°F). Average precipitation: 3.24 inches.
September is a fall month in Morristown, and is warmer than the annual average of 57.3°F. Daily temperatures swing about 22°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
80.6°F
Avg Low
58.6°F
Precipitation
3.24 in
Daylight
12h 13m
September records in Morristown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.9°F (1997) | 54.0°F (1984) | 1.23 in (2021) |
| September 2 | 91.9°F (1997) | 50.0°F (1987) | 0.77 in (1994) |
| September 3 | 96.1°F (2024) | 50.0°F (1987) | 1.28 in (2013) |
| September 4 | 93.9°F (2011) | 48.0°F (1997) | 1.69 in (1996) |
| September 5 | 93.9°F (2007) | 46.0°F (1984) | 1.44 in (2011) |
| September 6 | 93.9°F (1998) | 48.0°F (1984) | 2.30 in (2011) |
| September 7 | 93.9°F (1990) | 45.0°F (1984) | 0.30 in (1987) |
| September 8 | 91.9°F (1999) | 46.9°F (2024) | 1.16 in (2004) |
| September 9 | 93.0°F (2007) | 46.9°F (1998) | 2.38 in (2008) |
| September 10 | 93.9°F (2002) | 45.0°F (1998) | 0.84 in (1997) |
| September 11 | 91.9°F (2016) | 45.0°F (1993) | 1.20 in (1989) |
| September 12 | 90.0°F (1999) | 45.0°F (1993) | 1.62 in (1987) |
| September 13 | 95.0°F (1998) | 50.0°F (1994) | 0.92 in (2013) |
| September 14 | 93.9°F (1998) | 44.1°F (1985) | 0.25 in (1983) |
| September 15 | 91.0°F (1991) | 42.1°F (1985) | 0.45 in (1990) |
| September 16 | 91.0°F (1991) | 42.1°F (1984) | 2.12 in (1989) |
| September 17 | 91.9°F (2016) | 41.0°F (1984) | 0.96 in (1988) |
| September 18 | 91.0°F (2019) | 46.9°F (1984) | 3.42 in (2012) |
| September 19 | 90.0°F (2019) | 41.0°F (1984) | 0.83 in (2016) |
| September 20 | 89.1°F (1998) | 43.0°F (1991) | 1.09 in (2021) |
| September 21 | 90.0°F (2005) | 43.0°F (2006) | 0.58 in (1983) |
| September 22 | 91.0°F (2010) | 35.1°F (1983) | 1.33 in (2013) |
| September 23 | 91.9°F (2007) | 37.0°F (1983) | 1.50 in (2018) |
| September 24 | 91.9°F (2007) | 37.0°F (1990) | 1.36 in (2006) |
| September 25 | 91.0°F (2007) | 37.9°F (1983) | 1.75 in (2020) |
| September 26 | 91.9°F (2016) | 37.9°F (2001) | 3.53 in (2024) |
| September 27 | 89.1°F (1998) | 39.0°F (1991) | 3.58 in (2009) |
| September 28 | 90.0°F (1998) | 39.0°F (1993) | 1.00 in (2003) |
| September 29 | 91.9°F (2019) | 41.0°F (2003) | 0.82 in (2020) |
| September 30 | 91.9°F (2019) | 37.0°F (1993) | 1.04 in (1987) |