December weather in Mount Juliet, TN
The average temperature in Mount Juliet in December is 40.6°F (31.6°F–49.7°F). Average precipitation: 4.83 inches. Average snowfall is 0.5 inches.
December is a winter month in Mount Juliet, and is cooler than the annual average of 58.7°F. Daily temperatures swing about 18.1°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 33m. For travel, December is cool.
Avg High
49.7°F
Avg Low
31.6°F
Precipitation
4.83 in
Snow
0.5 in
December records in Mount Juliet
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 68.0°F (2006) | 21.9°F (2002) | 1.19 in (2019) |
| December 2 | 73.0°F (1998) | 23.0°F (2020) | 2.33 in (1991) |
| December 3 | 75.9°F (1998) | 21.9°F (2020) | 0.95 in (1990) |
| December 4 | 77.0°F (1998) | 16.0°F (2006) | 2.51 in (1993) |
| December 5 | 75.0°F (2013) | 19.9°F (1991) | 1.14 in (1998) |
| December 6 | 75.9°F (1998) | 17.1°F (2024) | 2.10 in (2013) |
| December 7 | 68.0°F (2004) | 16.0°F (2006) | 1.27 in (2004) |
| December 8 | 66.9°F (1991) | 12.0°F (2006) | 1.15 in (1998) |
| December 9 | 66.0°F (1999) | 12.9°F (1995) | 1.92 in (2009) |
| December 10 | 71.1°F (2007) | 8.1°F (1995) | 3.24 in (2008) |
| December 11 | 71.1°F (2021) | 15.1°F (1995) | 1.14 in (2012) |
| December 12 | 75.9°F (2007) | 16.0°F (2000) | 1.77 in (1998) |
| December 13 | 66.9°F (2020) | 14.0°F (2010) | 1.69 in (1991) |
| December 14 | 73.0°F (2015) | 8.1°F (2010) | 1.26 in (2020) |
| December 15 | 72.0°F (1995) | 7.0°F (2010) | 1.09 in (1990) |
| December 16 | 68.0°F (2006) | 10.9°F (2025) | 2.52 in (1996) |
| December 17 | 71.1°F (2006) | 10.9°F (2000) | 1.32 in (2019) |
| December 18 | 72.0°F (2016) | 10.9°F (2000) | 2.03 in (1990) |
| December 19 | 66.9°F (2021) | 12.9°F (2000) | 1.44 in (2025) |
| December 20 | 71.1°F (2008) | 12.0°F (1996) | 0.63 in (1993) |
| December 21 | 69.1°F (1998) | 14.0°F (2000) | 1.71 in (1990) |
| December 22 | 73.0°F (2013) | 8.1°F (2008) | 2.13 in (2004) |
| December 23 | 66.9°F (2015) | -2.0°F (2022) | 2.32 in (2017) |
| December 24 | 70.0°F (2025) | -2.9°F (2022) | 1.64 in (2016) |
| December 25 | 73.0°F (2025) | 5.0°F (2022) | 1.00 in (2006) |
| December 26 | 73.9°F (2021) | 9.0°F (2022) | 1.17 in (2012) |
| December 27 | 72.0°F (2015) | 17.1°F (2020) | 1.30 in (1990) |
| December 28 | 73.9°F (2015) | 12.9°F (2017) | 1.12 in (1993) |
| December 29 | 72.0°F (2015) | 12.9°F (2017) | 1.01 in (2007) |
| December 30 | 70.0°F (1990) | 14.0°F (1993) | 2.08 in (2019) |
| December 31 | 66.0°F (2020) | 14.0°F (2017) | 1.71 in (2018) |