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 22, Wednesday | 07 | -11.7 11 | 766.7 30.19 1022.18 1022.18 | 775.5 30.53 1033.92 1033.92 | 1.0 0.04 1.33 1.33 | 53 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | -11.7 11 | -6.7 20 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -19.4 -3 | |||||||||||||||
04 | -9.4 15 | 765.7 30.15 1020.85 1020.85 | 774.7 30.5 1032.85 1032.85 | 0.0 0 0 0 | 53 | Wind blowing from the north | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -17.2 1 | ||||||||||||||||||
01 | -8.9 16 | 765.7 30.15 1020.85 1020.85 | 774.7 30.5 1032.85 1032.85 | 0.0 0 0 0 | 59 | Wind blowing from the north-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | -11.1 12 | -7.2 19 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -15.6 4 | ||||||||||||||||
| January 21, Tuesday | 22 | -7.8 18 | 765.7 30.15 1020.85 1020.85 | 774.4 30.49 1032.45 1032.45 | -0.3 -0.01 -0.4 -0.4 | 57 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 1500-2000 4921-6562 | 16.0 9.9 | -15.0 5 | |||||||||||||||||
19 | -7.2 19 | 766.0 30.16 1021.25 1021.25 | 774.7 30.5 1032.85 1032.85 | 0.6 0.02 0.8 0.8 | 45 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | -11.1 12 | -6.7 20 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -17.2 1 | ||||||||||||||||
16 | -7.2 19 | 765.4 30.13 1020.45 1020.45 | 774.2 30.48 1032.18 1032.18 | -1.0 -0.04 -1.33 -1.33 | 43 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -17.8 -0 | ||||||||||||||||||
13 | -7.2 19 | 766.4 30.17 1021.78 1021.78 | 775.3 30.52 1033.65 1033.65 | -3.1 -0.12 -4.13 -4.13 | 39 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | -12.2 10 | -7.2 19 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -18.9 -2 | ||||||||||||||||
10 | -8.3 17 | 769.5 30.3 1025.92 1025.92 | 778.3 30.64 1037.65 1037.65 | 1.1 0.04 1.47 1.47 | 47 | Wind blowing from the west-northwest | 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 | -17.8 -0 | ||||||||||||||||||
07 | -11.1 12 | 768.4 30.25 1024.45 1024.45 | 777.4 30.61 1036.45 1036.45 | 0.2 0.01 0.27 0.27 | 53 | Wind blowing from the north-east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | -11.1 12 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -18.9 -2 | |||||||||||||||||