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
2025 July 19, Saturday	08	24.4 76	755.1 29.73 1006.72 1006.72	763.3 30.05 1017.65 1017.65	0.2 0.01 0.27 0.27	91	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas				22.2 72	30.0 86			200-300 656-984			16.0 9.9	22.8 73
	05	22.8 73	754.9 29.72 1006.45 1006.45	763.0 30.04 1017.25 1017.25	-0.5 -0.02 -0.67 -0.67	100	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas								300-600 984-1968			16.0 9.9	22.8 73
	02	23.9 75	755.4 29.74 1007.12 1007.12	763.4 30.06 1017.78 1017.78	-0.7 -0.03 -0.93 -0.93	94	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas				23.3 74	27.2 81			300-600 984-1968			16.0 9.9	22.8 73	0.3 0.01	6
July 18, Friday	23	25.0 77	756.1 29.77 1008.05 1008.05	764.2 30.09 1018.85 1018.85	1.0 0.04 1.33 1.33	90	Calm, no wind	Calm			100%. 10/10. 8 oktas								300-600 984-1968			16.0 9.9	23.3 74	Trace of precipitation Trace of precipitation	3
	20	26.7 80	755.1 29.73 1006.72 1006.72	763.3 30.05 1017.65 1017.65	0.0 0 0 0	76	Wind blowing from the north-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Rain, not freezing, continuous, slight at time of observation.			23.3 74	30.0 86			1000-1500 3281-4921			12.0 7.5	22.2 72	Trace of precipitation Trace of precipitation	6
	17	28.3 83	755.1 29.73 1006.72 1006.72	763.3 30.05 1017.65 1017.65	-0.7 -0.03 -0.93 -0.93	67	Wind blowing from the north-east	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	21.7 71	Trace of precipitation Trace of precipitation	3
	14	29.4 85	755.8 29.76 1007.65 1007.65	764.1 30.08 1018.72 1018.72	-0.3 -0.01 -0.4 -0.4	59	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas				26.1 79	30.0 86			600-1000 1968-3281			16.0 9.9	20.6 69
	11	28.3 83	756.1 29.77 1008.05 1008.05	764.2 30.09 1018.85 1018.85	0.7 0.03 0.93 0.93	63	Wind blowing from the north-northeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas								1000-1500 3281-4921			16.0 9.9	20.6 69
	08	26.1 79	755.4 29.74 1007.12 1007.12	763.5 30.06 1017.92 1017.92	1.5 0.06 2 2	74	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				23.3 74	34.4 94			1500-2000 4921-6562			16.0 9.9	21.1 70