Weather observations for the past three days for
Washington/Dulles International Airport, DC
| Date | Time (est) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Temperature (ºC) | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | Pressure | Precipitation (cm) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 21 | 18:52 | S 13 | 16.09 | Partly Cloudy | FEW090 SCT200 | 3.9 | -13.3 | 5.6 | 3.3 | 28% | 1 | 76.71 | 1023.0 | ||||
| 21 | 17:52 | S 11 | 16.09 | Partly Cloudy | FEW090 SCT200 | 3.9 | -13.9 | 26% | 1 | 76.73 | 1023.5 | ||||||
| 21 | 16:52 | S 17 | 16.09 | Partly Cloudy | FEW090 SCT200 | 5 | -15 | 22% | 2 | 76.78 | 1023.9 | ||||||
| 21 | 15:52 | S 33 G 48 | 16.09 | Partly Cloudy and Breezy | SCT090 SCT200 | 5.6 | -15.6 | 20% | 1 | 76.78 | 1024.1 | ||||||
| 21 | 14:52 | S 28 G 43 | 16.09 | Partly Cloudy | FEW080 SCT200 | 5.6 | -16.1 | 19% | 1 | 76.86 | 1025.1 | ||||||
| 21 | 13:52 | S 26 G 50 | 16.09 | A Few Clouds | FEW250 | 4.4 | -16.7 | 20% | 0 | 76.91 | 1025.8 | ||||||
| 21 | 12:52 | S 26 G 56 | 16.09 | A Few Clouds | FEW250 | 3.3 | -17.2 | 3.3 | -13.3 | 21% | -1 | 76.99 | 1026.7 | ||||
| 21 | 11:52 | S 19 G 37 | 16.09 | Fair | CLR | 1.1 | -17.2 | 24% | -3 | 77.29 | 1030.9 | ||||||
| 21 | 10:52 | S 15 | 16.09 | Fair | CLR | -1.1 | -15 | 34% | -5 | 77.39 | 1032.2 | ||||||
| 21 | 09:52 | S 11 | 16.09 | Fair | CLR | -3.9 | -13.9 | 46% | -8 | 77.52 | 1033.8 | ||||||
| 21 | 08:52 | Calm | 16.09 | Fair | CLR | -6.7 | -12.8 | 62% | 77.52 | 1033.8 | |||||||
| 21 | 07:52 | Calm | 16.09 | Fair | CLR | -11.7 | -15.6 | 73% | 77.5 | 1033.8 | |||||||
| 21 | 06:52 | Calm | 16.09 | Fair | CLR | -12.8 | -16.1 | -11.1 | -14.4 | 77% | 77.5 | 1033.7 | |||||
| 21 | 05:52 | NW 7 | 16.09 | Fair | CLR | -12.8 | -16.1 | 77% | -17 | 77.55 | 1034.3 | ||||||
| 21 | 04:52 | SE 6 | 16.09 | Fair | CLR | -12.8 | -16.1 | 77% | 77.5 | 1033.6 | |||||||
| 21 | 03:52 | Calm | 16.09 | Fair | CLR | -12.8 | -16.1 | 77% | 77.52 | 1034.0 | |||||||
| 21 | 02:52 | Calm | 16.09 | Fair | CLR | -12.2 | -17.2 | 67% | 77.55 | 1034.1 | |||||||
| 21 | 01:52 | S 6 | 16.09 | Fair | CLR | -11.7 | -16.7 | 67% | 77.52 | 1033.8 | |||||||
| 21 | 00:52 | Calm | 16.09 | Fair | CLR | -11.7 | -17.2 | -4.4 | -12.2 | 64% | 77.5 | 1033.7 | |||||
| 20 | 23:52 | Calm | 16.09 | Fair | CLR | -10.6 | -17.8 | 56% | 77.52 | 1033.7 | |||||||
| 20 | 22:52 | Calm | 16.09 | Fair | CLR | -9.4 | -17.8 | 51% | 77.52 | 1033.8 | |||||||
| 20 | 21:52 | N 6 | 16.09 | Fair | CLR | -6.7 | -18.9 | 38% | 77.47 | 1033.1 | |||||||
| 20 | 20:52 | NW 6 | 16.09 | Fair | CLR | -6.1 | -19.4 | 34% | 77.44 | 1032.7 | |||||||
| 20 | 19:52 | NW 9 | 16.09 | Fair | CLR | -5.6 | -20 | 31% | -9 | 77.44 | 1032.7 | ||||||
| 20 | 18:52 | N 9 | 16.09 | Fair | CLR | -4.4 | -20 | -0.6 | -4.4 | 29% | -8 | 77.37 | 1031.8 | ||||
| 20 | 17:52 | NW 17 | 16.09 | A Few Clouds | FEW200 | -3.3 | -20.6 | 25% | -8 | 77.29 | 1030.7 | ||||||
| 20 | 16:52 | W 15 | 16.09 | Fair | CLR | -1.7 | -21.1 | 21% | -6 | 77.22 | 1030.0 | ||||||
| 20 | 15:52 | W 13 | 16.09 | Fair | CLR | -0.6 | -21.7 | 19% | -4 | 77.19 | 1029.5 | ||||||
| 20 | 14:52 | W 17 | 16.09 | Fair | CLR | -0.6 | -21.1 | 20% | -5 | 77.17 | 1029.0 | ||||||
| 20 | 13:52 | W 19 G 30 | 16.09 | Fair | CLR | -1.1 | -21.1 | 20% | -6 | 77.14 | 1028.6 | ||||||
| 20 | 12:52 | W 17 G 33 | 16.09 | Fair | CLR | -1.7 | -20.6 | -1.7 | -8.9 | 22% | -6 | 77.14 | 1028.8 | ||||
| 20 | 11:52 | W 15 G 30 | 16.09 | Fair | CLR | -2.8 | -20.6 | 24% | -7 | 77.22 | 1029.7 | ||||||
| 20 | 10:52 | W 20 G 31 | 16.09 | Fair | CLR | -3.9 | -20 | 28% | -10 | 77.27 | 1030.5 | ||||||
| 20 | 09:52 | NW 13 | 16.09 | Fair | CLR | -5.6 | -19.4 | 33% | -10 | 77.27 | 1030.3 | ||||||
| 20 | 08:52 | N 11 | 16.09 | Fair | CLR | -6.7 | -18.9 | 38% | -11 | 77.19 | 1029.5 | ||||||
| 20 | 07:52 | NW 11 | 16.09 | Fair | CLR | -8.3 | -19.4 | 41% | -13 | 77.14 | 1028.9 | ||||||
| 20 | 06:52 | NW 7 | 16.09 | Fair | CLR | -8.3 | -19.4 | -3.9 | -8.9 | 41% | -12 | 77.11 | 1028.4 | ||||
| 20 | 05:52 | NW 11 | 16.09 | Fair | CLR | -8.3 | -18.9 | 43% | -13 | 77.01 | 1027.1 | ||||||
| 20 | 04:52 | NW 11 | 16.09 | Fair | CLR | -7.8 | -18.9 | 41% | -12 | 76.94 | 1026.0 | ||||||
| 20 | 03:52 | NW 17 | 16.09 | Fair | CLR | -7.2 | -18.3 | 41% | -13 | 76.91 | 1025.6 | ||||||
| 20 | 02:52 | NW 19 | 16.09 | Fair | CLR | -6.1 | -17.8 | 39% | -12 | 76.89 | 1025.3 | ||||||
| 20 | 01:52 | NW 20 G 35 | 16.09 | A Few Clouds | FEW200 | -5 | -16.7 | 40% | -11 | 76.81 | 1024.3 | ||||||
| 20 | 00:52 | NW 17 | 16.09 | A Few Clouds | FEW200 | -3.9 | -15 | 1.1 | -3.9 | 42% | -9 | 76.73 | 1023.4 | ||||
| 19 | 23:52 | NW 26 G 41 | 16.09 | A Few Clouds | FEW200 | -2.2 | -13.9 | 41% | -8 | 76.68 | 1022.6 | ||||||
| 19 | 22:52 | NW 19 G 35 | 16.09 | Fair | CLR | -1.1 | -12.8 | 41% | -6 | 76.58 | 1021.2 | ||||||
| 19 | 21:52 | NW 7 | 16.09 | Partly Cloudy | SCT200 | -0.6 | -13.3 | 38% | -3 | 76.5 | 1020.1 | ||||||
| 19 | 20:52 | NW 17 | 16.09 | A Few Clouds | FEW060 FEW180 | 0 | -12.8 | 38% | -4 | 76.43 | 1019.1 | ||||||
| 19 | 19:52 | Calm | 16.09 | Fair | CLR | -0.6 | -13.3 | 38% | 76.4 | 1018.9 | |||||||
| 19 | 18:52 | N 6 | 16.09 | Fair | CLR | 1.1 | -12.8 | 5.6 | 1.1 | 35% | 76.33 | 1018.0 | |||||
| 19 | 17:52 | NW 13 | 16.09 | A Few Clouds | FEW060 | 2.2 | -12.8 | 32% | -1 | 76.25 | 1016.7 | ||||||
| 19 | 16:52 | NW 17 | 16.09 | A Few Clouds | FEW060 | 4.4 | -12.2 | 29% | 1 | 76.17 | 1015.9 | ||||||
| 19 | 15:52 | SW 13 | 16.09 | A Few Clouds | FEW060 | 5.6 | -10 | 32% | 3 | 76.12 | 1015.1 | ||||||
| 19 | 14:52 | SW 11 | 16.09 | A Few Clouds | FEW060 | 5 | -10 | 33% | 3 | 76.1 | 1014.8 | ||||||
| 19 | 13:52 | SW 15 | 16.09 | A Few Clouds | FEW055 | 4.4 | -10 | 35% | 1 | 76.07 | 1014.4 | ||||||
| 19 | 12:52 | SW 19 | 16.09 | A Few Clouds | FEW055 | 3.9 | -10 | 3.9 | -7.2 | 36% | 0 | 76.07 | 1014.6 | ||||
| 19 | 11:52 | W 17 | 16.09 | A Few Clouds | FEW050 FEW100 | 3.3 | -10 | 37% | -0 | 76.15 | 1015.3 | ||||||
| 19 | 10:52 | SW 17 | 16.09 | A Few Clouds | FEW050 FEW100 | 2.2 | -10 | 40% | -2 | 76.2 | 1016.2 | ||||||
| 19 | 09:52 | SW 19 | 16.09 | A Few Clouds | FEW080 | -0.6 | -8.9 | 54% | -5 | 76.2 | 1016.2 | ||||||
| 19 | 08:52 | S 11 | 16.09 | A Few Clouds | FEW050 | -3.9 | -8.9 | 69% | -8 | 76.17 | 1015.8 | ||||||
| 19 | 07:52 | S 13 | 16.09 | Fair | CLR | -5.6 | -9.4 | 75% | -10 | 76.17 | 1015.9 | ||||||
| 19 | 06:52 | S 11 | 16.09 | Partly Cloudy | SCT090 | -7.2 | -11.1 | -6.1 | -8.9 | 74% | -12 | 76.15 | 1015.7 | ||||
| 19 | 05:52 | S 6 | 16.09 | A Few Clouds | FEW110 | -7.8 | -11.1 | 77% | 76.12 | 1015.4 | |||||||
| 19 | 04:52 | S 7 | 16.09 | Fair | CLR | -6.7 | -11.7 | 68% | -10 | 76.1 | 1014.9 | ||||||
| 19 | 03:52 | SW 9 | 16.09 | Mostly Cloudy | BKN120 | -6.1 | -10.6 | 71% | -10 | 76.17 | 1015.6 | ||||||
| 19 | 02:52 | Calm | 16.09 | Mostly Cloudy | BKN120 | -8.3 | -11.7 | 77% | 76.15 | 1015.7 | |||||||
| 19 | 01:52 | Calm | 16.09 | Fair | CLR | -8.3 | -11.7 | 77% | 76.12 | 1015.3 | |||||||
| 19 | 00:52 | Calm | 16.09 | Fair | CLR | -7.2 | -11.7 | -1.1 | -7.8 | 71% | 76.05 | 1014.3 | |||||
| 18 | 23:52 | W 6 | 16.09 | Fair | CLR | -5.6 | -12.8 | 57% | 76.12 | 1015.2 | |||||||
| 18 | 22:52 | NW 9 | 16.09 | Fair | CLR | -3.9 | -12.2 | 53% | -7 | 76.12 | 1015.0 | ||||||
| 18 | 21:52 | NW 11 | 16.09 | Fair | CLR | -3.3 | -11.1 | 55% | -7 | 76.12 | 1015.0 | ||||||
| 18 | 20:52 | NW 11 | 16.09 | A Few Clouds | FEW075 | -4.4 | -10 | 65% | -8 | 76.12 | 1015.0 | ||||||
| 18 | 19:52 | N 11 | 16.09 | A Few Clouds | FEW075 | -2.2 | -10.6 | 53% | -6 | 76.07 | 1014.3 | ||||||
| Date | Time (est) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºC) | Pressure | Precipitation (cm) | |||||||||||||||