Sterling-Dulles Airport, VA: December

31 December 2025: December 2025 averaged 34.6°F in Sterling-Dulles Airport, VA, the coldest December since 2010, 20th coldest of 65.

December 2025

Mean temperature: 34.6°F; Coldest since 2010; 20th coldest of 65
Precipitation: 1.30 in; Driest since 2021; 10th driest of 63

A normal December in Sterling-Dulles Airport, VA (1991 to 2020): a mean temperature of 38.3°F, between 33.4°F and 41.5°F in eight years of ten and 2.97 in of precipitation, between 1.56 in and 5.60 in in eight years of ten.

The mean temperature of every December in Sterling-Dulles Airport, VA since 1961: 34.6°F in 2025; the lowest is 23.1°F, in 1989.

Normal range, 33.4 to 41.5°F

Every year, ranked, as a table

Every December in Sterling-Dulles Airport, VA from 1961 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
2025	34.6	46	43.8	44	25.4	45	1.30	54
2024	38	31	47.4	27	28.7	27	3.34	29
2023	43	4	52.7	6	33.3	5	5.75	6
2022	36.9	34	47.2	28	26.6	38	4.95	14
2021	45	2	55.2	2	34.7	2	0.46	62
2020	39	18	47.5	23	30.5	15	5.81	4
2019	39	18	47.7	21	30.2	18	2.97	32
2018	38.8	21	47.5	23	30.1	19	5.76	5
2017	35	44	44.4	43	25.6	43	0.77	60
2016	38.2	27	46.9	30	29.5	23	2.36	40
2015	48.7	1	57.7	1	39.6	1	3.76	25
2014	38.3	25	45.6	39	31	9	3.26	30
2013	39.2	17	48	19	30.4	16	5.58	10
2012	41.9	7	50.4	14	33.4	4	2.87	35
2011	41.4	9	51.5	10	31.4	7	4.46	20
2010	30.9	59	38.3	62	23.5	54	1.47	53
2009	35.2	42	42.9	48	27.5	34	5.98	3
2008	38.3	25	47.1	29	29.5	23	2.61	37
2007	38.4	24	45.7	38	31	9	2.97	32
2006	41.9	7	53	5	30.8	12	1.74	49
2005	33.4	49	41.8	53	25	47	2.92	34
2004	37.8	32	47.5	23	28	32	3.01	31
2003	36	40	45.2	40	26.8	37	4.57	18
2002	33.4	49	42.4	51	24.4	52	3.61	27
2001	41.3	10	51.9	7	30.7	13	1.56	51
2000	27.8	64	36.7	64	18.8	64	2.06	45
1999	38.2	27	48.2	18	28.2	31	2.67	36
1998	40.9	12	51.8	8	30	22	1.53	52
1997	37.1	33	46.3	33	28	32	1.92	47
1996	38.2	27	46.4	32	30.1	19	5.21	12
1995	33	53	41.1	57	24.8	49	2.05	46
1994	40.2	13	50.4	14	30.1	19	2.42	39
1993	34	47	42.9	48	25.1	46	3.78	24
1992	36.8	35	45	41	28.5	28	4.73	17
1991	38.5	23	48.7	17	28.3	29	4.54	19
1990	41.3	10	51.8	8	30.7	13	5.00	13
1989	23.1	65	33	65	13.2	65	1.72	50
1988	35.8	41	46	37	25.5	44	0.92	57
1987	38.6	22	47.8	20	29.4	25	2.35	41
1986	36.8	35	46.3	33	27.3	35	4.83	16
1985	33.2	51	43.6	45	22.8	57	0.92	57
1984	43.3	3	54.3	3	32.3	6	1.25	55
1983	30.4	60	38.5	61	22.2	59	5.66	9
1982	42.6	5	51.5	10	33.7	3	2.25	44
1981	34	47	43.1	47	25	47	2.46	38
1980	34.9	45	44.9	42	24.8	49	0.68	61
1979	40.1	14	51.2	12	28.9	26	0.88	59
1978	38.2	27	50.2	16	26.2	42	3.58	28
1977	33	53	42.5	50	23.4	55	4.87	15
1976	31.2	57	41.7	54	20.7	62	1.78	48
1975	33.2	51	42.3	52	24.1	53	4.01	22
1974	36.6	37	46.6	31	26.5	40	5.26	11
1973	35.2	42	43.5	46	26.9	36	5.72	7
1972	39.3	16	47.6	22	30.9	11	6.06	2
1971	42.2	6	53.1	4	31.3	8	1.00	56
1970	36.3	39	46.2	36	26.4	41	3.88	23
1969	31	58	38.9	60	23.1	56	6.74	1
1968	31.9	56	41.5	55	22.3	58	2.32	42
1967	36.5	38	46.3	33	26.6	38	5.69	8
1966	33	53	41.3	56	24.7	51	3.67	26
1965	39.4	15	50.5	13	28.3	29	0.42	63
1964	38.9	20	47.5	23	30.3	17	4.19	21
1963	29.4	63	38	63	20.7	62	2.26	43
1962	30.3	61	39.2	59	21.5	60
1961	30.3	61	39.4	58	21.2	61

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2015	48.7
2021	45
1984	43.3
2023	43
1982	42.6
1971	42.2
2012	41.9
2006	41.9
2011	41.4
2001	41.3
More years share the last value

Coldest
Year	Mean, °F
1989	23.1
2000	27.8
1963	29.4
1962	30.3
1961	30.3
1983	30.4
2010	30.9
1969	31
1976	31.2
1968	31.9

Wettest
Year	Precipitation, in
1969	6.74
1972	6.06
2009	5.98
2020	5.81
2018	5.76
2023	5.75
1973	5.72
1967	5.69
1983	5.66
2013	5.58

Driest
Year	Precipitation, in
1965	0.42
2021	0.46
1980	0.68
2017	0.77
1979	0.88
1988	0.92
1985	0.92
1971	1.00
1984	1.25
2025	1.30

The hottest, coldest and wettest days

Hottest day: 60°F; 29 December 2025
Coldest night: 13°F; 16 December 2025, 9 December 2025
Wettest day: 0.73 in; 2 December 2025

Every month, season and year

Months

Seasons

Years

Sterling-Dulles Airport, VA the day's answers

All-time records

Every answer in words

December 2025 brought 1.30 in of precipitation in Sterling-Dulles Airport, VA, the driest December since 2021, 10th driest of 63.
The hottest day of December 2025 in Sterling-Dulles Airport, VA: 60°F on Monday 29 December 2025.
The coldest night of December 2025 in Sterling-Dulles Airport, VA: a low of 13°F on Tuesday 16 December 2025 and Tuesday 9 December 2025.
The wettest day of December 2025 in Sterling-Dulles Airport, VA: 0.73 in on Tuesday 2 December 2025.