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 | |
| 2026 May 17, Sunday | 17 | 30.6 87 | 755.6 29.75 1007.38 1007.38 | 763.7 30.07 1018.18 1018.18 | -1.3 -0.05 -1.73 -1.73 | 40 | Wind blowing from the south-west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 50%. 5/10. 4 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 15.6 60 | |||||||||||||||||
14 | 28.3 83 | 756.9 29.8 1009.12 1009.12 | 765.0 30.12 1019.92 1019.92 | -0.2 -0.01 -0.27 -0.27 | 46 | 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 | 18.3 65 | 28.3 83 | 1500-2000 4921-6562 | 16.0 9.9 | 15.6 60 | 0.3 0.01 | 6 | ||||||||||||||
11 | 21.7 71 | 757.1 29.81 1009.38 1009.38 | 765.4 30.13 1020.45 1020.45 | 0.7 0.03 0.93 0.93 | 79 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 17.8 64 | 0.3 0.01 | 3 | ||||||||||||||||
08 | 18.3 65 | 756.4 29.78 1008.45 1008.45 | 764.7 30.11 1019.52 1019.52 | 1.5 0.06 2 2 | 84 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 13.9 57 | 29.4 85 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 15.6 60 | ||||||||||||||||
05 | 15.6 60 | 754.9 29.72 1006.45 1006.45 | 762.9 30.04 1017.12 1017.12 | 0.8 0.03 1.07 1.07 | 90 | Wind blowing from the east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 13.9 57 | ||||||||||||||||||
02 | 18.3 65 | 754.1 29.69 1005.38 1005.38 | 762.1 30 1016.05 1016.05 | 0.5 0.02 0.67 0.67 | 81 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | 23.9 75 | 1500-2000 4921-6562 | 16.0 9.9 | 15.0 59 | |||||||||||||||||
| May 16, Saturday | 23 | 17.8 64 | 753.6 29.67 1004.72 1004.72 | 761.8 29.99 1015.65 1015.65 | 0.8 0.03 1.07 1.07 | 84 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 15.0 59 | |||||||||||||||||
20 | 23.3 74 | 752.8 29.64 1003.65 1003.65 | 761.2 29.97 1014.85 1014.85 | -0.6 -0.02 -0.8 -0.8 | 60 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 29.4 85 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 15.0 59 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||||
17 | 28.9 84 | 753.4 29.66 1004.45 1004.45 | 761.5 29.98 1015.25 1015.25 | -0.9 -0.04 -1.2 -1.2 | 34 | Wind blowing from the south-southwest | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 11.7 53 | ||||||||||||||||||