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 September 19, Saturday | 05 | 20.0 68 | 756.6 29.79 1008.72 1008.72 | 764.7 30.11 1019.52 1019.52 | 0.2 0.01 0.27 0.27 | 65 | Wind blowing from the north-northeast | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 2000-2500 6562-8202 | 16.0 9.9 | 13.3 56 | |||||||||||||||||
02 | 21.1 70 | 756.4 29.78 1008.45 1008.45 | 764.6 30.1 1019.38 1019.38 | -0.2 -0.01 -0.27 -0.27 | 66 | Wind blowing from the north-east | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 2000-2500 6562-8202 | 16.0 9.9 | 14.4 58 | ||||||||||||||||||
| September 18, Friday | 23 | 23.3 74 | 756.6 29.79 1008.72 1008.72 | 764.8 30.11 1019.65 1019.65 | 1.0 0.04 1.33 1.33 | 69 | Wind blowing from the north-northeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 17.2 63 | |||||||||||||||||
20 | 25.6 78 | 755.6 29.75 1007.38 1007.38 | 763.9 30.07 1018.45 1018.45 | 0.2 0.01 0.27 0.27 | 62 | Wind blowing from the north-northeast | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | 16.0 9.9 | 17.8 64 | ||||||||||||||||||
17 | 27.2 81 | 755.4 29.74 1007.12 1007.12 | 763.6 30.06 1018.05 1018.05 | -0.7 -0.03 -0.93 -0.93 | 62 | Wind blowing from the north | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 19.4 67 | ||||||||||||||||||
14 | 27.8 82 | 756.1 29.77 1008.05 1008.05 | 764.3 30.09 1018.98 1018.98 | -0.5 -0.02 -0.67 -0.67 | 63 | Wind blowing from the north | 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 | 70 – 80%. 7/10 – 8/10. 6 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 20.0 68 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||||
11 | 27.2 81 | 756.6 29.79 1008.72 1008.72 | 764.9 30.11 1019.78 1019.78 | 0.2 0.01 0.27 0.27 | 67 | Wind blowing from the north | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 600-1000 1968-3281 | 16.0 9.9 | 20.6 69 | ||||||||||||||||||
08 | 22.8 73 | 756.4 29.78 1008.45 1008.45 | 764.5 30.1 1019.25 1019.25 | 0.8 0.03 1.07 1.07 | 90 | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 30.6 87 | 1500-2000 4921-6562 | 14.0 8.7 | 21.1 70 | ||||||||||||||||||
05 | 22.8 73 | 755.6 29.75 1007.38 1007.38 | 763.8 30.07 1018.32 1018.32 | 0.0 0 0 0 | 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 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 11.0 6.8 | 22.2 72 | ||||||||||||||||||