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 August 12, Wednesday	23	23.9 75	750.6 29.55 1000.72 1000.72	758.6 29.87 1011.38 1011.38	0.8 0.03 1.07 1.07	82	Wind blowing from the south-southwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								1000-1500 3281-4921			16.0 9.9	20.6 69
	20	26.1 79	749.8 29.52 999.65 999.65	757.9 29.84 1010.45 1010.45	-0.3 -0.01 -0.4 -0.4	72	Calm, no wind	Calm			no clouds no clouds no clouds				22.2 72	30.0 86						16.0 9.9	20.6 69
	17	28.9 84	750.1 29.53 1000.05 1000.05	758.0 29.84 1010.58 1010.58	-0.7 -0.03 -0.93 -0.93	59		Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								1000-1500 3281-4921			16.0 9.9	20.0 68
	14	28.3 83	750.8 29.56 1000.98 1000.98	758.8 29.87 1011.65 1011.65	-0.8 -0.03 -1.07 -1.07	63	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas				22.8 73	28.3 83			1000-1500 3281-4921			16.0 9.9	20.6 69
	11	26.7 80	751.6 29.59 1002.05 1002.05	759.8 29.91 1012.98 1012.98	0.5 0.02 0.67 0.67	64	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								1500-2000 4921-6562			16.0 9.9	19.4 67
	08	22.8 73	751.1 29.57 1001.38 1001.38	759.2 29.89 1012.18 1012.18	0.7 0.03 0.93 0.93	76	Wind blowing from the north-west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				22.2 72	30.6 87			2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	18.3 65
	05	23.3 74	750.4 29.54 1000.45 1000.45	758.3 29.85 1010.98 1010.98	-0.2 -0.01 -0.27 -0.27	71	Wind blowing from the north-northwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	17.8 64
	02	23.3 74	750.6 29.55 1000.72 1000.72	758.5 29.86 1011.25 1011.25	-1.0 -0.04 -1.33 -1.33	71	Wind blowing from the north-northwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				20.6 69	26.7 80			2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	17.8 64
August 11, Tuesday	23	24.4 76	751.6 29.59 1002.05 1002.05	759.7 29.91 1012.85 1012.85	0.8 0.03 1.07 1.07	69		Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	18.3 65