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 June 12, Friday	20	22.2 72	749.3 29.5 998.98 998.98	757.3 29.81 1009.65 1009.65	1.3 0.05 1.73 1.73	94	Wind blowing from the south-southeast	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	34.4 94			300-600 984-1968			16.0 9.9	21.1 70	7.0 0.28	6
	17	28.3 83	748.0 29.45 997.25 997.25	756.1 29.77 1008.05 1008.05	-0.8 -0.03 -1.07 -1.07	74	Wind blowing from the east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								1500-2000 4921-6562			11.0 6.8	23.3 74	0.5 0.02	3
	14	33.3 92	748.8 29.48 998.32 998.32	756.7 29.79 1008.85 1008.85	0.0 0 0 0	46	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				23.3 74	34.4 94			1500-2000 4921-6562			16.0 9.9	20.0 68
	11	31.1 88	748.8 29.48 998.32 998.32	756.9 29.8 1009.12 1009.12	-0.5 -0.02 -0.67 -0.67	59	Wind blowing from the south-southwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 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	22.2 72
	08	23.3 74	749.3 29.5 998.98 998.98	757.4 29.82 1009.78 1009.78	0.0 0 0 0	85	Wind blowing from the south-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas				20.6 69	34.4 94			2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	20.6 69
	05	21.1 70	749.3 29.5 998.98 998.98	757.3 29.81 1009.65 1009.65	-0.3 -0.01 -0.4 -0.4	93	Wind blowing from the south	Light breeze (2 m/s) (7 km/h) (4 mph) (4 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	20.0 68
	02	21.1 70	749.6 29.51 999.38 999.38	757.6 29.83 1010.05 1010.05	-0.2 -0.01 -0.27 -0.27	97	Calm, no wind	Calm			50%. 5/10. 4 oktas				20.6 69	27.8 82			2000-2500 6562-8202			16.0 9.9	20.6 69	5.0 0.2	6
June 11, Thursday	23	22.2 72	749.8 29.52 999.65 999.65	757.9 29.84 1010.45 1010.45	0.2 0.01 0.27 0.27	94	Wind blowing from the south	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	21.1 70	5.0 0.2	3
June 11, Thursday	20	28.3 83	749.6 29.51 999.38 999.38	757.7 29.83 1010.18 1010.18	1.0 0.04 1.33 1.33	55	Wind blowing from the west	Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft)	23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft		100%. 10/10. 8 oktas	Squalls at or within sight of the station during the preceding hour or at the time of observation.			22.2 72	34.4 94			1000-1500 3281-4921			9.0 5.6	18.3 65	Trace of precipitation Trace of precipitation	6