December weather in Knoxville, TN
The average temperature in Knoxville in December is 40.4°F (29.7°F–51.1°F). Average precipitation: 5.91 inches.
December is a winter month in Knoxville, and is cooler than the annual average of 57.9°F. Daily temperatures swing about 21.4°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 34m. For travel, December is a wet month.
Avg High
51.1°F
Avg Low
29.7°F
Precipitation
5.91 in
Daylight
9h 34m
December records in Knoxville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 73.9°F (1991) | 19.9°F (2023) | 4.66 in (2016) |
| December 2 | 73.9°F (1982) | 18.0°F (1969) | 3.05 in (1991) |
| December 3 | 77.0°F (1982) | 19.9°F (1969) | 2.33 in (2023) |
| December 4 | 78.1°F (1982) | 15.1°F (1989) | 1.20 in (1993) |
| December 5 | 72.0°F (2011) | 16.0°F (1969) | 3.07 in (1993) |
| December 6 | 71.1°F (1999) | 18.0°F (1969) | 0.90 in (2017) |
| December 7 | 73.9°F (1998) | 9.0°F (1984) | 1.46 in (2011) |
| December 8 | 73.9°F (1998) | 10.0°F (1984) | 1.15 in (2022) |
| December 9 | 70.0°F (2012) | 12.0°F (2006) | 2.80 in (1978) |
| December 10 | 70.0°F (2012) | 7.0°F (1995) | 3.04 in (1972) |
| December 11 | 73.0°F (2007) | 10.0°F (1995) | 1.49 in (2023) |
| December 12 | 75.9°F (2007) | 12.0°F (1982) | 1.62 in (2008) |
| December 13 | 69.1°F (2015) | 15.1°F (1982) | 2.40 in (1998) |
| December 14 | 71.1°F (2015) | 9.0°F (2010) | 1.42 in (1991) |
| December 15 | 72.0°F (1984) | 10.0°F (2010) | 1.66 in (2020) |
| December 16 | 72.0°F (1984) | 5.0°F (1989) | 0.95 in (1992) |
| December 17 | 72.0°F (2021) | 6.1°F (1989) | 1.35 in (1992) |
| December 18 | 68.0°F (1984) | 14.0°F (2000) | 0.87 in (1967) |
| December 19 | 72.0°F (2021) | 15.1°F (1981) | 1.75 in (2009) |
| December 20 | 66.9°F (1984) | 5.0°F (1981) | 1.23 in (1992) |
| December 21 | 63.0°F (1988) | 6.1°F (2004) | 1.57 in (2017) |
| December 22 | 73.9°F (2013) | 1.0°F (1989) | 1.94 in (1983) |
| December 23 | 66.9°F (2015) | -0.9°F (1989) | 2.75 in (1990) |
| December 24 | 73.0°F (2015) | 1.0°F (1989) | 1.66 in (2020) |
| December 25 | 75.0°F (1982) | -5.1°F (1983) | 2.02 in (1974) |
| December 26 | 73.0°F (2015) | -4.0°F (1983) | 2.70 in (1973) |
| December 27 | 77.0°F (2015) | 5.0°F (1983) | 1.23 in (2023) |
| December 28 | 77.0°F (2015) | 10.0°F (2022) | 1.88 in (2018) |
| December 29 | 77.0°F (2019) | 15.1°F (2004) | 1.55 in (1967) |
| December 30 | 71.1°F (1984) | 7.0°F (1983) | 3.60 in (1969) |
| December 31 | 71.1°F (1990) | 6.1°F (1983) | 2.35 in (1969) |