Oak Ridge, TN: December

31 December 2025: December 2025 averaged 43.3°F in Oak Ridge, TN, the warmest December since 2023, 19th warmest of 79.

December 2025

Mean temperature: 43.3°F; Warmest since 2023; 19th warmest of 79
Precipitation: 2.12 in; Driest since 1999; 5th driest of 79

A normal December in Oak Ridge, TN (1991 to 2020): a mean temperature of 42.2°F, between 37.6°F and 45.4°F in eight years of ten and 5.25 in of precipitation, between 2.77 in and 8.31 in in eight years of ten.

The mean temperature of every December in Oak Ridge, TN since 1947: 43.3°F in 2025; the highest is 52.8°F, in 2015.

Normal range, 37.6 to 45.4°F

Every year, ranked, as a table

Every December in Oak Ridge, TN from 1947 to 2025, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2025	43.3	19	52.9	17	33.8	19	2.12	75	0
2024	42.8	23	51.4	30	34.1	18	5.41	35	0
2023	44.8	12	54.1	13	35.5	14	5.81	30	0
2022	41.3	35	50.4	38	32.2	34	7.20	21	0
2021	50.7	3	60.5	2	41	3	4.80	45	0
2020	40.1	41	49.4	43	30.8	44	3.71	58	0
2019	46.3	5	56.5	5	36.5	7	5.18	40	2
2018	44.3	14	51.7	28	36.8	6	7.68	17	0
2017	40.9	38	48.9	47	32.8	30	3.54	60	0
2016	42.3	28	51.2	32	33.4	23	7.46	18	0
2015	52.8	1	61.4	1	44.2	1	8.56	8	0
2014	43.8	17	51.4	30	36.2	9	5.87	29	0
2013	42.4	27	51.1	33	33.7	21	8.04	14	0
2012	46.1	6	54.3	10	38	5	6.58	27	0
2011	44.9	10	54.5	9	35.3	15	5.02	41	0
2010	33.1	76	40.5	77	25.6	70	2.19	74	0
2009	38.7	55	46.4	62	31	42	8.14	12	0
2008	41.5	34	50.5	36	32.5	31	8.07	13	0
2007	45.3	8	54.6	8	35.9	11	3.50	61	0
2006	43.7	18	55.3	7	32.1	36	2.50	71	0
2005	37.5	64	45.9	66	29.1	54	2.90	68	0
2004	39.5	46	49.3	44	29.7	49	5.36	37	0
2003	39	52	48.5	50	29.5	51	3.72	56	0
2002	40.1	41	48.7	48	31.4	39	6.29	28	0
2001	45.1	9	54.3	10	35.9	11	4.97	42	0
2000	33.5	75	41.5	75	25.5	71	3.50	61	0
1999	42.8	23	53.4	15	32.3	32	1.57	78	0
1998	44.9	10	53.8	14	36	10	8.47	10	0
1997	39.2	51	47.3	58	31.1	41	3.88	53	0
1996	42.2	29	52.5	21	31.9	38	5.32	39	0
1995	37.6	63	47.7	56	27.5	62	3.67	59	0
1994	44.4	13	54.2	12	34.5	17	2.80	69	0
1993	39.6	44	48.1	54	31	42	8.29	11	0
1992	38.9	53	45.5	67	32.3	32	5.79	31	0
1991	42.1	31	52.1	24	32.1	36	10.92	2	0
1990	43	20	53.2	16	33	27	12.64	1	2
1989	30.5	78	39.7	78	21.2	78	3.03	65	0
1988	38.8	54	50.5	36	27.2	65	5.53	33	0
1987	42.8	23	52.6	19	32.9	28	3.43	63	0
1986	37.7	61	46	64	29.4	53	5.34	38	0
1985	30.9	77	41.5	75	20.3	79	2.11	76	0
1984	45.8	7	56.7	4	34.8	16	2.59	70	0
1983	34.3	73	43.5	72	25.2	73	6.95	22	0
1982	43	20	52.6	19	33.4	23	7.22	20	0
1981	34.3	73	42.4	74	26.2	68	4.12	52	0
1980	38.2	56	49.3	44	27.2	65	2.02	77	0
1979	39.4	48	49.8	40	29.1	54	2.24	73	0
1978	39.6	44	51.1	33	28.2	60	6.65	26	0
1977	36.1	68	46.2	63	25.9	69	4.82	44	0
1976	34.6	69	46	64	23.2	76	4.68	46	0
1975	39.4	48	49.8	40	28.9	56	4.36	50	0
1974	39.5	46	48.6	49	30.5	46	4.96	43	0
1973	39.3	50	48.4	52	30.1	48	8.90	7	0
1972	44.1	16	51.8	27	36.5	7	9.20	6	0
1971	47.7	4	56.1	6	39.4	4	6.90	23	0
1970	42.5	26	51.5	29	33.5	22	4.47	49	0
1969	36.5	65	43.4	73	29.5	51	8.54	9	0
1968	36.4	67	45.4	68	27.4	63	4.28	51	0
1967	44.2	15	52.7	18	35.6	13	7.94	16	0
1966	38.2	56	46.9	59	29.6	50	3.72	56	0
1965	41.3	35	52.4	22	30.3	47	0.67	79	0
1964	41.7	32	50.1	39	33.3	25	5.62	32	0
1963	30.4	79	38.8	79	22.1	77	2.99	67	0
1962	34.4	72	44	70	24.7	75	3.31	64	0
1961	40.3	40	48.5	50	32.2	34	9.86	4	0
1960	34.5	70	44.1	69	25	74	4.56	47	0
1959	41.3	35	49.7	42	32.9	28	5.37	36	0
1958	36.5	65	46.5	60	26.6	67	2.43	72	0
1957	43	20	52.3	23	33.8	19	7.40	19	0
1956	51	2	59.4	3	42.6	2	10.31	3	0
1955	37.8	59	47.4	57	28.1	61	5.49	34	1
1954	37.7	61	46.5	60	28.8	57	9.39	5	0
1953	37.8	59	48.3	53	27.3	64	6.66	25	0
1952	40	43	49.2	46	30.8	44	3.77	55	1
1951	41.6	33	51.9	26	31.4	39	8.01	15	0
1950	34.5	70	43.8	71	25.3	72	3.83	54	0
1949	38.1	58	48	55	28.3	59	4.49	48	0
1948	42.2	29	51.1	33	33.2	26	6.89	24	1
1947	40.4	39	52	25	28.7	58	3.00	66	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2015	52.8
1956	51
2021	50.7
1971	47.7
2019	46.3
2012	46.1
1984	45.8
2007	45.3
2001	45.1
2011	44.9
More years share the last value

Coldest
Year	Mean, °F
1963	30.4
1989	30.5
1985	30.9
2010	33.1
2000	33.5
1983	34.3
1981	34.3
1962	34.4
1960	34.5
1950	34.5

Wettest
Year	Precipitation, in
1990	12.64
1991	10.92
1956	10.31
1961	9.86
1954	9.39
1972	9.20
1973	8.90
2015	8.56
1969	8.54
1998	8.47

Driest
Year	Precipitation, in
1965	0.67
1999	1.57
1980	2.02
1985	2.11
2025	2.12
2010	2.19
1979	2.24
1958	2.43
2006	2.50
1984	2.59

The hottest, coldest and wettest days

Hottest day: 74°F; 27 December 2025
Coldest night: 13°F; 15 December 2025
Wettest day: 0.58 in; 18 December 2025

Every month, season and year

Months

Seasons

Years

Oak Ridge, TN the day's answers

All-time records

Every answer in words

December 2025 brought 2.12 in of precipitation in Oak Ridge, TN, the driest December since 1999, 5th driest of 79.
The hottest day of December 2025 in Oak Ridge, TN: 74°F on Saturday 27 December 2025.
The coldest night of December 2025 in Oak Ridge, TN: a low of 13°F on Monday 15 December 2025.
The wettest day of December 2025 in Oak Ridge, TN: 0.58 in on Thursday 18 December 2025.