Weather archive in Washington / Dulles (airport)

To receive explanations, hover over the appropriate heading

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 January 7, Wednesday	16	15.0 59	751.1 29.57 1001.38 1001.38	759.4 29.9 1012.45 1012.45	1.8 0.07 2.4 2.4	46	Wind blowing from the north-west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)	9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft		20–30%. 2/10–3/10. 2 oktas								1500-2000 4921-6562			16.0 9.9	3.3 38
	13	16.1 61	749.3 29.5 998.98 998.98	757.6 29.83 1010.05 1010.05	0.5 0.02 0.67 0.67	44	Wind blowing from the north-northwest	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)	10 m/s 36 km/h 22 mph 19 knots 5 Bft		70 – 80%. 7/10 – 8/10. 6 oktas				2.8 37	16.7 62			1500-2000 4921-6562			16.0 9.9	3.9 39
	10	13.3 56	748.8 29.48 998.32 998.32	757.1 29.81 1009.38 1009.38	2.3 0.09 3.07 3.07	67	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas								1500-2000 4921-6562			16.0 9.9	7.2 45
	07	3.9 39	746.5 29.39 995.25 995.25	754.9 29.72 1006.45 1006.45	1.2 0.05 1.6 1.6	96	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				0.0 32	9.4 49			1000-1500 3281-4921			16.0 9.9	3.3 38
	04	3.9 39	745.3 29.34 993.65 993.65	753.7 29.67 1004.85 1004.85	0.3 0.01 0.4 0.4	100	Wind blowing from the south-southeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			no clouds no clouds no clouds											11.0 6.8	3.9 39
	01	2.8 37	745.0 29.33 993.25 993.25	753.5 29.67 1004.58 1004.58	-1.1 -0.04 -1.47 -1.47	96	Calm, no wind	Calm			100%. 10/10. 8 oktas	Mist.			-1.6 29	6.1 43			2500 or more, or no clouds. 8202 or more, or no clouds.			9.0 5.6	2.2 36
January 6, Tuesday	22	3.9 39	746.1 29.37 994.72 994.72	754.4 29.7 1005.78 1005.78	-1.0 -0.04 -1.33 -1.33	93	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			12.0 7.5	2.8 37
	19	5.6 42	747.1 29.41 996.05 996.05	755.4 29.74 1007.12 1007.12	-0.2 -0.01 -0.27 -0.27	89	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas				-1.6 29	9.4 49			2000-2500 6562-8202			12.0 7.5	3.9 39
	16	7.8 46	747.3 29.42 996.32 996.32	755.7 29.75 1007.52 1007.52	-1.8 -0.07 -2.4 -2.4	79	Wind blowing from the south	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	4.4 40