Weather on December 15
Knoxville, TN
55 Years of Data
Avg High
52°F
Avg Low
31°F
Warmest
1971
60°F avg
Coldest
2025
17°F avg
About This Date
December 15th in Knoxville, TN typically brings cool winter weather, with average highs around 52°F and lows near 31°F. Over 55 years of records, the warmest December 15th was in 1971 (60°F average), while the coldest was 2025 (17°F) — a 43°F range across recorded history. Rain or other precipitation has occurred on about 33% of December 15th dates historically, with the wettest December 15th recording 4.22" of rain. The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
Planning for December 15th in Knoxville, TN? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025coldest | 25° | 9° | 17° | 0.1" | — |
| 2024 | 50° | 33° | 42° | 1.12" | — |
| 2023 | 59° | 30° | 45° | — | — |
| 2022 | 50° | 34° | 42° | 3.12" | — |
| 2021 | 60° | 27° | 43° | — | — |
| 2020 | 50° | 34° | 42° | 4.22" | — |
| 2019 | 56° | 39° | 47° | — | — |
| 2018 | 56° | 40° | 48° | — | — |
| 2017 | 46° | 20° | 33° | — | — |
| 2016 | 49° | 32° | 40° | — | — |
| 2015 | 65° | 46° | 55° | — | — |
| 2014 | 50° | 19° | 35° | — | — |
| 2013 | 48° | 24° | 36° | — | — |
| 2012 | 55° | 31° | 43° | — | — |
| 2011 | 66° | 39° | 53° | — | — |
| 2010 | 27° | 10° | 18° | — | — |
| 2009 | 62° | 45° | 53° | 0.08" | — |
| 2008 | 48° | 32° | 40° | — | — |
| 2007 | 56° | 33° | 44° | — | — |
| 2006 | 62° | 34° | 48° | — | — |
| 2005 | 41° | 32° | 37° | 1.57" | — |
| 2004 | 27° | 13° | 20° | — | — |
| 2003 | 42° | 28° | 35° | 0.15" | — |
| 2002 | 39° | 28° | 34° | 0.05" | — |
| 2001 | 70° | 38° | 54° | 0.05" | — |
| 2000 | 48° | 37° | 43° | — | — |
| 1999 | 52° | 29° | 40° | — | — |
| 1998 | 52° | 23° | 37° | — | — |
| 1997 | 41° | 19° | 30° | — | — |
| 1996 | 55° | 29° | 42° | — | — |
| 1995 | 63° | 41° | 52° | — | — |
| 1994 | 55° | 28° | 42° | — | — |
| 1993 | 46° | 38° | 42° | 0.76" | — |
| 1992 | 54° | 26° | 40° | — | — |
| 1991 | 56° | 23° | 39° | — | — |
| 1990 | 53° | 42° | 48° | 0.25" | — |
| 1989 | 39° | 23° | 31° | — | — |
| 1988 | 60° | 24° | 42° | — | — |
| 1987 | 65° | 35° | 50° | 0.64" | — |
| 1986 | 42° | 25° | 33° | — | — |
| 1985 | 40° | 13° | 26° | — | — |
| 1984 | 72° | 39° | 55° | — | — |
| 1983 | 54° | 34° | 44° | 0.15" | — |
| 1982 | 52° | 35° | 43° | 2.29" | — |
| 1981 | 43° | 38° | 40° | 0.43" | — |
| 1980 | 51° | 28° | 40° | — | — |
| 1979 | 46° | 31° | 38° | — | — |
| 1978 | 43° | 21° | 32° | — | — |
| 1977 | 65° | 47° | 56° | 0.15" | — |
| 1976 | 50° | 37° | 44° | 0.71" | — |
| 1975 | 68° | 48° | 58° | — | — |
| 1974 | 55° | 35° | 45° | — | — |
| 1973 | 42° | 36° | 39° | — | — |
| 1972 | 53° | 47° | 50° | 2.57" | — |
| 1971warmest | 70° | 50° | 60° | — | — |
55 years of data from KNOXVILLE UNIV OF TENN