Tennessee weather in December
December is one of the least pleasant months in Tennessee: highs of 9°C (49°F) and about 126 mm (5.0 in) of rain on average. Nights average -1°C (31°F) and cloud cover 65% (NASA POWER, 2001–2025 averages). It is the 4th wettest month of the year and the 2nd coolest. Compared with November, it is cooler and wetter; January brings highs of 7°C (45°F) and 102 mm (4.0 in) of rain.
Figures are long-term averages for Nashville, the largest city in Tennessee. See below for other places.
Is December a good time to visit Tennessee?
least pleasant month Weather score 34/100.
December is one of the least pleasant months for weather in Tennessee. For better conditions, consider Apr–Oct.
Does it rain a lot in Tennessee in December?
Some rain is normal: about 126 mm (5.0 in) falls in an average December. It is the 4th wettest month of the year.
How warm is Tennessee in December?
Days average 9°C (49°F) and nights -1°C (31°F).
Tennessee weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 7°C (45°F) | -2°C (28°F) | 102 mm | 65% | least pleasant |
| February | 9°C (49°F) | -1°C (30°F) | 129 mm | 69% | least pleasant |
| March | 15°C (59°F) | 4°C (39°F) | 115 mm | 63% | fair |
| April | 21°C (69°F) | 9°C (48°F) | 128 mm | 57% | best |
| May | 25°C (77°F) | 14°C (58°F) | 129 mm | 59% | best |
| June | 29°C (85°F) | 19°C (66°F) | 102 mm | 51% | best |
| July | 31°C (88°F) | 21°C (69°F) | 124 mm | 52% | best |
| August | 32°C (89°F) | 20°C (68°F) | 102 mm | 50% | best |
| September | 29°C (83°F) | 16°C (61°F) | 92 mm | 46% | best |
| October | 22°C (71°F) | 9°C (49°F) | 101 mm | 49% | best |
| November | 15°C (59°F) | 3°C (37°F) | 100 mm | 52% | fair |
| December | 9°C (49°F) | -1°C (31°F) | 126 mm | 65% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Tennessee in December
Weather can differ a lot within Tennessee: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Nashville | 9°C (49°F) | -1°C (31°F) | 126 mm | least pleasant |
| New South Memphis | 11°C (51°F) | 1°C (33°F) | 138 mm | least pleasant |
| Memphis | 11°C (51°F) | 1°C (33°F) | 138 mm | least pleasant |
| Knoxville | 10°C (49°F) | -1°C (31°F) | 124 mm | least pleasant |
| Chattanooga | 11°C (51°F) | 0°C (33°F) | 140 mm | least pleasant |
| Clarksville | 9°C (47°F) | -1°C (30°F) | 121 mm | least pleasant |
| Murfreesboro | 9°C (49°F) | 0°C (31°F) | 130 mm | least pleasant |
| East Chattanooga | 11°C (51°F) | 0°C (33°F) | 140 mm | least pleasant |
| Franklin | 9°C (49°F) | -1°C (31°F) | 126 mm | least pleasant |
| Cordova | 11°C (51°F) | 1°C (33°F) | 138 mm | least pleasant |
| Jackson | 10°C (50°F) | 0°C (32°F) | 137 mm | least pleasant |
| Johnson City | 8°C (47°F) | -2°C (29°F) | 98 mm | least pleasant |