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 December 10, Wednesday | 04 | -1.1 30 | 749.6 29.51 999.38 999.38 | 758.1 29.85 1010.72 1010.72 | -1.5 -0.06 -2 -2 | 82 | Wind blowing from the south | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 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 | -3.9 25 | |||||||||||||||||
01 | -0.6 31 | 751.1 29.57 1001.38 1001.38 | 759.6 29.91 1012.72 1012.72 | -1.2 -0.05 -1.6 -1.6 | 82 | Wind blowing from the south-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | -0.6 31 | 300-600 984-1968 | 16.0 9.9 | -3.3 26 | |||||||||||||||||
| December 9, Tuesday | 22 | -1.1 30 | 752.3 29.62 1002.98 1002.98 | 761.0 29.96 1014.58 1014.58 | -2.6 -0.1 -3.47 -3.47 | 79 | Wind blowing from the south-southwest | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 10 m/s 36 km/h 22 mph 19 knots 5 Bft | 100%. 10/10. 8 oktas | 300-600 984-1968 | 16.0 9.9 | -4.4 24 | ||||||||||||||||
19 | -1.7 29 | 754.9 29.72 1006.45 1006.45 | 763.5 30.06 1017.92 1017.92 | -0.5 -0.02 -0.67 -0.67 | 66 | Wind blowing from the south | 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 | 100%. 10/10. 8 oktas | -10.0 14 | 0.6 33 | 600-1000 1968-3281 | 16.0 9.9 | -7.2 19 | |||||||||||||||
16 | 0.0 32 | 755.4 29.74 1007.12 1007.12 | 764.2 30.09 1018.85 1018.85 | -2.0 -0.08 -2.67 -2.67 | 43 | Wind blowing from the south | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 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 | -11.1 12 | ||||||||||||||||||
13 | -1.7 29 | 757.4 29.82 1009.78 1009.78 | 766.1 30.16 1021.38 1021.38 | -3.2 -0.13 -4.27 -4.27 | 39 | 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 | -10.6 13 | -1.7 29 | 1000-1500 3281-4921 | 16.0 9.9 | -13.9 7 | ||||||||||||||||
10 | -5.0 23 | 760.6 29.94 1014.05 1014.05 | 769.5 30.3 1025.92 1025.92 | -0.3 -0.01 -0.4 -0.4 | 44 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 1000-1500 3281-4921 | 16.0 9.9 | -15.6 4 | ||||||||||||||||||
07 | -10.0 14 | 760.9 29.96 1014.45 1014.45 | 769.7 30.3 1026.18 1026.18 | 0.3 0.01 0.4 0.4 | 67 | Calm, no wind | Calm | 50%. 5/10. 4 oktas | -10.0 14 | 2.8 37 | 1500-2000 4921-6562 | 16.0 9.9 | -15.0 5 | ||||||||||||||||
04 | -8.9 16 | 760.6 29.94 1014.05 1014.05 | 769.3 30.29 1025.65 1025.65 | -0.3 -0.01 -0.4 -0.4 | 65 | Wind blowing from the north-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | -14.4 6 | |||||||||||||||||||