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 April 5, Sunday | 08 | 21.1 70 | 749.8 29.52 999.65 999.65 | 757.9 29.84 1010.45 1010.45 | -0.6 -0.02 -0.8 -0.8 | 71 | Wind blowing from the south-southwest | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 14 m/s 50 km/h 31 mile/hour 27 knots 7 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 20.6 69 | 30.6 87 | 600-1000 1968-3281 | 16.0 9.9 | 15.6 60 | ||||||||||||||
05 | 22.2 72 | 750.4 29.54 1000.45 1000.45 | 758.3 29.85 1010.98 1010.98 | -0.9 -0.04 -1.2 -1.2 | 61 | Wind blowing from the south-southwest | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 14 m/s 50 km/h 31 mile/hour 27 knots 7 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 | 14.4 58 | |||||||||||||||||
02 | 23.3 74 | 751.3 29.58 1001.65 1001.65 | 759.5 29.9 1012.58 1012.58 | -1.5 -0.06 -2 -2 | 57 | Wind blowing from the south | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 19.4 67 | 26.7 80 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 14.4 58 | |||||||||||||||
| April 4, Saturday | 23 | 24.4 76 | 752.8 29.64 1003.65 1003.65 | 761.0 29.96 1014.58 1014.58 | 0.0 0 0 0 | 54 | Wind blowing from the south | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 13 m/s 47 km/h 29 miles/hour 25 knots 6 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 | 14.4 58 | ||||||||||||||||
20 | 26.7 80 | 752.8 29.64 1003.65 1003.65 | 761.0 29.96 1014.58 1014.58 | -0.6 -0.02 -0.8 -0.8 | 42 | Wind blowing from the south | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 20–30%. 2/10–3/10. 2 oktas | 19.4 67 | 30.6 87 | 2000-2500 6562-8202 | 16.0 9.9 | 12.8 55 | ||||||||||||||||
17 | 30.6 87 | 753.4 29.66 1004.45 1004.45 | 761.6 29.98 1015.38 1015.38 | -2.2 -0.09 -2.93 -2.93 | 35 | Wind blowing from the south | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 50%. 5/10. 4 oktas | 2000-2500 6562-8202 | 16.0 9.9 | 13.3 56 | |||||||||||||||||
14 | 29.4 85 | 755.6 29.75 1007.38 1007.38 | 763.8 30.07 1018.32 1018.32 | -1.8 -0.07 -2.4 -2.4 | 42 | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 50%. 5/10. 4 oktas | 20.0 68 | 29.4 85 | 2000-2500 6562-8202 | 16.0 9.9 | 15.0 59 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||||
11 | 25.0 77 | 757.4 29.82 1009.78 1009.78 | 765.4 30.13 1020.45 1020.45 | -0.2 -0.01 -0.27 -0.27 | 56 | Wind blowing from the south | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 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 | 15.6 60 | Trace of precipitation Trace of precipitation | 3 | ||||||||||||||||
08 | 20.0 68 | 757.6 29.83 1010.05 1010.05 | 765.7 30.15 1020.85 1020.85 | 0.5 0.02 0.67 0.67 | 76 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 19.4 67 | 28.9 84 | 2000-2500 6562-8202 | 16.0 9.9 | 15.6 60 | Trace of precipitation Trace of precipitation | 6 | ||||||||||||||