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 31, Friday | 07 | 6.7 44 | 752.3 29.62 1002.98 1002.98 | 760.7 29.95 1014.18 1014.18 | -1.8 -0.07 -2.4 -2.4 | 79 | Wind blowing from the south | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | 5.0 41 | 12.2 54 | 1000-1500 3281-4921 | 16.0 9.9 | 3.3 38 | 1.0 0.04 | 6 | |||||||||||||
04 | 5.0 41 | 754.1 29.69 1005.38 1005.38 | 762.5 30.02 1016.58 1016.58 | -2.0 -0.08 -2.67 -2.67 | 86 | Wind blowing from the south | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | Rain, not freezing, continuous, slight at time of observation. | 1500-2000 4921-6562 | 16.0 9.9 | 2.8 37 | 1.0 0.04 | 3 | |||||||||||||||
01 | 6.1 43 | 756.1 29.77 1008.05 1008.05 | 764.5 30.1 1019.25 1019.25 | -1.3 -0.05 -1.73 -1.73 | 76 | Wind blowing from the south | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | -2.1 28 | 8.3 47 | 2000-2500 6562-8202 | 16.0 9.9 | 2.2 36 | 0.8 0.03 | 6 | |||||||||||||
| January 30, Thursday | 22 | 7.2 45 | 757.4 29.82 1009.78 1009.78 | 765.9 30.15 1021.12 1021.12 | -0.8 -0.03 -1.07 -1.07 | 48 | 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 | -3.3 26 | |||||||||||||||||
19 | 7.8 46 | 758.2 29.85 1010.85 1010.85 | 766.6 30.18 1022.05 1022.05 | 0.6 0.02 0.8 0.8 | 38 | Wind blowing from the south-southeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | -2.1 28 | 12.2 54 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -5.6 22 | ||||||||||||||||
16 | 11.7 53 | 757.6 29.83 1010.05 1010.05 | 766.1 30.16 1021.38 1021.38 | -1.0 -0.04 -1.33 -1.33 | 27 | Wind blowing from the south-southwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 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 | -6.7 20 | ||||||||||||||||||
13 | 10.6 51 | 758.6 29.87 1011.38 1011.38 | 767.2 30.2 1022.85 1022.85 | -1.1 -0.04 -1.47 -1.47 | 31 | Wind blowing from the south-west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | -1.1 30 | 10.6 51 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -6.1 21 | ||||||||||||||||
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 | ||||||||||||||||