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 January 30, Thursday | 10 | 6.7 44 | 759.7 29.91 1012.85 1012.85 | 768.1 30.24 1024.05 1024.05 | 1.3 0.05 1.73 1.73 | 41 | Calm, no wind | Calm | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -5.6 22 | |||||||||||||||||
07 | -1.7 29 | 758.4 29.86 1011.12 1011.12 | 766.9 30.19 1022.45 1022.45 | 2.6 0.1 3.47 3.47 | 69 | Calm, no wind | Calm | 20–30%. 2/10–3/10. 2 oktas | -2.2 28 | 15.0 59 | 1000-1500 3281-4921 | 16.0 9.9 | -6.7 20 | ||||||||||||||||
04 | 4.4 40 | 755.8 29.76 1007.65 1007.65 | 764.2 30.09 1018.85 1018.85 | 1.7 0.07 2.27 2.27 | 51 | Wind blowing from the west-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | no clouds no clouds no clouds | 16.0 9.9 | -5.0 23 | |||||||||||||||||||
01 | 5.6 42 | 754.1 29.69 1005.38 1005.38 | 762.5 30.02 1016.58 1016.58 | 2.0 0.08 2.67 2.67 | 45 | Wind blowing from the west-northwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | no clouds no clouds no clouds | 1.7 35 | 8.3 47 | 16.0 9.9 | -5.6 22 | |||||||||||||||||
| January 29, Wednesday | 22 | 6.7 44 | 752.1 29.61 1002.72 1002.72 | 760.5 29.94 1013.92 1013.92 | 2.5 0.1 3.33 3.33 | 40 | Wind blowing from the west-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 10 m/s 36 km/h 22 mph 19 knots 5 Bft | no clouds no clouds no clouds | 16.0 9.9 | -6.1 21 | |||||||||||||||||
19 | 7.8 46 | 749.6 29.51 999.38 999.38 | 757.9 29.84 1010.45 1010.45 | 3.5 0.14 4.67 4.67 | 35 | Wind blowing from the west-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | no clouds no clouds no clouds | 1.7 35 | 15.0 59 | 16.0 9.9 | -6.7 20 | ||||||||||||||||
16 | 11.7 53 | 746.1 29.37 994.72 994.72 | 754.4 29.7 1005.78 1005.78 | 3.1 0.12 4.13 4.13 | 31 | Wind blowing from the north-west | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 14 m/s 50 km/h 31 mile/hour 27 knots 7 Bft | 20–30%. 2/10–3/10. 2 oktas | 1500-2000 4921-6562 | 16.0 9.9 | -5.0 23 | |||||||||||||||||
13 | 14.4 58 | 743.0 29.25 990.59 990.59 | 751.4 29.58 1001.78 1001.78 | -0.5 -0.02 -0.67 -0.67 | 23 | Wind blowing from the west-northwest | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 20–30%. 2/10–3/10. 2 oktas | 0.6 33 | 15.0 59 | 1500-2000 4921-6562 | 16.0 9.9 | -6.7 20 | |||||||||||||||
10 | 9.4 49 | 743.5 29.27 991.25 991.25 | 751.8 29.6 1002.32 1002.32 | 0.7 0.03 0.93 0.93 | 41 | Wind blowing from the south-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | no clouds no clouds no clouds | 16.0 9.9 | -3.3 26 | |||||||||||||||||||