Weather archive in Washington / Dulles (airport)

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Date / Local time		T	Po	P	Pa	U	DD	Ff	ff10	ff3	N	WW	W1	W2	Tn	Tx	Cl	Nh	H	Cm	Ch	VV	Td	RRR	tR	E	Tg	E'	sss
2026 July 17, Friday	02	28.9 84	753.9 29.68 1005.12 1005.12	761.8 29.99 1015.65 1015.65	1.3 0.05 1.73 1.73	43	Wind blowing from the north	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas	Haze.			27.2 81	32.8 91			600-1000 1968-3281			6.0 3.7	15.0 59
July 16, Thursday	23	31.7 89	752.6 29.63 1003.38 1003.38	760.7 29.95 1014.18 1014.18	1.3 0.05 1.73 1.73	55	Wind blowing from the north-west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			50%. 5/10. 4 oktas								1500-2000 4921-6562			11.0 6.8	21.7 71
	20	32.8 91	751.3 29.58 1001.65 1001.65	759.3 29.89 1012.32 1012.32	0.0 0 0 0	52	Wind blowing from the west-southwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas				27.2 81	35.6 96			1000-1500 3281-4921			16.0 9.9	21.7 71
	17	35.0 95	751.3 29.58 1001.65 1001.65	759.4 29.9 1012.45 1012.45	-0.8 -0.03 -1.07 -1.07	49	Wind blowing from the west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								1000-1500 3281-4921			16.0 9.9	22.8 73
	14	33.9 93	752.1 29.61 1002.72 1002.72	760.2 29.93 1013.52 1013.52	-0.7 -0.03 -0.93 -0.93	56	Wind blowing from the west-northwest	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Haze.			28.3 83	33.9 93			600-1000 1968-3281			9.0 5.6	23.9 75
	11	31.1 88	752.8 29.64 1003.65 1003.65	761.0 29.96 1014.58 1014.58	0.0 0 0 0	61	Wind blowing from the north-west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Haze.							2000-2500 6562-8202			9.0 5.6	22.8 73
	08	28.3 83	752.8 29.64 1003.65 1003.65	761.0 29.96 1014.58 1014.58	0.0 0 0 0	67	Wind blowing from the north-west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				26.1 79				2500 or more, or no clouds. 8202 or more, or no clouds.			11.0 6.8	21.7 71
	05	27.8 82	752.8 29.64 1003.65 1003.65	760.8 29.95 1014.32 1014.32	0.2 0.01 0.27 0.27	69	Wind blowing from the north-northwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds											16.0 9.9	21.7 71
	02	28.3 83	752.6 29.63 1003.38 1003.38	760.7 29.95 1014.18 1014.18	0.3 0.01 0.4 0.4	67	Wind blowing from the north-west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			no clouds no clouds no clouds				20.0 68	31.1 88						16.0 9.9	21.7 71