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	17	32.0 90	754.3 29.7 1005.65 1005.65	762.4 30.02 1016.45 1016.45	-1.1 -0.04 -1.47 -1.47	41		Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.							600-1000 1968-3281			3.2 2.0	17.0 63
	14	31.1 88	755.4 29.74 1007.12 1007.12	763.5 30.06 1017.92 1017.92	-0.2 -0.01 -0.27 -0.27	40	Calm, no wind	Calm			100%. 10/10. 8 oktas	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.			24.4 76	31.1 88			600-1000 1968-3281			3.2 2.0	16.1 61
	11	28.3 83	755.6 29.75 1007.38 1007.38	763.7 30.07 1018.18 1018.18	0.0 0 0 0	46	Calm, no wind	Calm			100%. 10/10. 8 oktas	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.							600-1000 1968-3281			2.4 1.5	15.6 60
	08	24.4 76	755.6 29.75 1007.38 1007.38	763.6 30.06 1018.05 1018.05	1.0 0.04 1.33 1.33	60	Wind blowing from the north-west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.			20.0 68	35.6 96			600-1000 1968-3281			2.0 1.2	16.1 61
	05	23.3 74	754.6 29.71 1006.05 1006.05	762.6 30.02 1016.72 1016.72	0.7 0.03 0.93 0.93	64	Calm, no wind	Calm			100%. 10/10. 8 oktas	Haze.							600-1000 1968-3281			6.0 3.7	16.1 61
	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