Sterling-Dulles Airport, VA: July

31 July 2026: July 2026 averaged 78.7°F in Sterling-Dulles Airport, VA, the warmest July since 2025, tied 14th warmest of 65 (with 1988).

July 2026

Mean temperature: 78.7°F; Warmest since 2025; 14th warmest of 65
Precipitation: 5.34 in; Wettest since 2018; 14th wettest of 65

A normal July in Sterling-Dulles Airport, VA (1991 to 2020): a mean temperature of 77.5°F, between 74.1°F and 79.8°F in eight years of ten and 3.37 in of precipitation, between 2.03 in and 7.33 in in eight years of ten.

The mean temperature of every July in Sterling-Dulles Airport, VA since 1962: 78.7°F in 2026; the highest is 81°F, in 2020 and 2011.

Normal range, 74.1 to 79.8°F

Every year, ranked, as a table

Every July in Sterling-Dulles Airport, VA from 1960 to 2026, 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
2026	78.7	14	88.4	27	69.1	8	5.34	14	0
2025	80.1	5	90.2	13	70.1	1	2.94	36	0
2024	80.8	3	91.6	5	70.1	1	2.66	39	0
2023	80.1	5	91.2	8	69	10	5.09	16	0
2022	78.1	21	88.3	28	67.9	14	5.23	15	0
2021	78.3	18	89.3	19	67.3	20	2.43	46	0
2020	81	1	91.8	4	70.1	1	4.85	20	0
2019	79.2	11	90.9	9	67.4	17	2.73	37	0
2018	76.5	32	86.6	42	66.5	27	11.21	1	0
2017	77.7	25	87.7	34	67.8	15	8.80	2	0
2016	79.5	8	89.7	15	69.2	7	3.02	35	0
2015	76	37	85.2	51	66.8	23	4.89	19	0
2014	74.2	56	84.5	57	63.8	49	2.09	56	0
2013	78.3	18	86.9	37	69.6	5	7.27	4	0
2012	80.6	4	91.4	7	69.8	4	2.43	46	0
2011	81	1	92.8	1	69.1	8	2.58	42	0
2010	79.5	8	90.8	11	68.1	13	4.17	26	0
2009	74.9	49	85.5	48	64.3	43	2.18	50	0
2008	76.8	30	87.6	35	66	30	2.18	50	0
2007	77.3	26	88.8	23	65.7	36	1.75	59	0
2006	78.6	16	88.5	25	68.7	12	2.45	45	0
2005	77.9	22	86.9	37	68.8	11	7.85	3	0
2004	75.8	42	85.1	53	66.6	25	3.72	30	0
2003	75.4	46	84.8	55	65.9	33	6.06	8	0
2002	77.2	28	87.8	32	66.7	24	2.64	40	0
2001	72.2	62	83.1	62	61.3	61	4.24	24	0
2000	71.8	65	81.7	65	61.9	58	4.28	23	0
1999	78.4	17	90.9	9	66	30	2.56	43	0
1998	75.3	47	86.9	37	63.7	50	1.31	62	0
1997	75.8	42	88.5	25	63.1	54	1.38	61	0
1996	72.9	60	82.4	64	63.4	53	5.89	11	0
1995	78.2	20	89.4	18	66.9	22	4.24	24	0
1994	79.5	8	89.6	17	69.4	6	5.75	12	0
1993	79.7	7	91.9	3	67.4	17	2.06	57	0
1992	75.9	38	86.1	45	65.7	36	7.23	5	0
1991	77.9	22	88.7	24	67.1	21	2.64	40	0
1990	76.8	30	87.8	32	65.9	33	5.42	13	0
1989	75.9	38	85.5	48	66.4	28	5.99	10	0
1988	78.7	14	92	2	65.3	38	7.12	6	0
1987	79.1	12	90.8	11	67.4	17	3.04	34	0
1986	79	13	91.6	5	66.4	28	1.86	58	0
1985	75.9	38	88.9	21	62.9	56	2.34	48	0
1984	71.9	64	82.8	63	61.1	62	2.46	44	0
1983	74.6	52	88.9	21	60.3	64	0.94	64	0
1982	77	29	88	30	66	30	2.11	55	0
1981	75	48	86.1	45	64	47	4.05	28	0
1980	77.3	26	90.1	14	64.5	42	4.41	22	0
1979	74.1	57	84.3	59	64	47	2.18	50	0
1978	74.4	53	85.2	51	63.5	52	4.52	21	0
1977	76.4	33	89.7	15	63.1	54	3.25	32	0
1976	72.2	62	84.2	60	60.2	65	2.33	49	0
1975	74.4	53	84.5	57	64.2	44	6.25	7	0
1974	73.5	59	85.6	47	61.4	60	2.69	38	0
1973	75.9	38	86.8	40	65	39	4.99	17	0
1972	75.8	42	85.1	53	66.6	25	1.53	60	0
1971	74.9	49	87.6	35	62.2	57	2.15	54	0
1970	74	58	86.4	43	61.6	59	6.00	9	0
1969	77.8	24	87.9	31	67.7	16	4.90	18	0
1968	75.5	45	86.2	44	64.9	40	4.08	27	0
1967	74.4	53	84.8	55	64.1	46	3.38	31	0
1966	76.4	33	89.2	20	63.7	50	2.17	53	0
1965	74.8	51	85.5	48	64.2	44	3.94	29	0
1964	76.3	36	86.8	40	65.8	35	3.09	33	0
1963	76.4	33	88.2	29	64.6	41	1.25	63	0
1962	72.6	61	84	61	61	63	0.86	65	1
1960									15

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2020	81
2011	81
2024	80.8
2012	80.6
2025	80.1
2023	80.1
1993	79.7
2016	79.5
2010	79.5
1994	79.5

Coldest
Year	Mean, °F
2000	71.8
1984	71.9
2001	72.2
1976	72.2
1962	72.6
1996	72.9
1974	73.5
1970	74
1979	74.1
2014	74.2

Wettest
Year	Precipitation, in
2018	11.21
2017	8.80
2005	7.85
2013	7.27
1992	7.23
1988	7.12
1975	6.25
2003	6.06
1970	6.00
1989	5.99

Driest
Year	Precipitation, in
1962	0.86
1983	0.94
1963	1.25
1998	1.31
1997	1.38
1972	1.53
2007	1.75
1986	1.86
1993	2.06
2014	2.09

The hottest, coldest and wettest days

Hottest day: 99°F; 4 July 2026
Coldest night: 57°F; 24 July 2026
Wettest day: 1.44 in; 9 July 2026

Every month, season and year

Months

Seasons

Years

Sterling-Dulles Airport, VA the day's answers

All-time records

Every answer in words

July 2026 brought 5.34 in of precipitation in Sterling-Dulles Airport, VA, the wettest July since 2018, 14th wettest of 65.
The hottest day of July 2026 in Sterling-Dulles Airport, VA: 99°F on Saturday 4 July 2026.
The coldest night of July 2026 in Sterling-Dulles Airport, VA: a low of 57°F on Friday 24 July 2026.
The wettest day of July 2026 in Sterling-Dulles Airport, VA: 1.44 in on Thursday 9 July 2026.