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. | ||||||||||||||||
| 23 | 12:52 | NW 15 | 16.09 | Mostly Cloudy | BKN190 BKN230 | 5 | -12.8 | 5 | -3.9 | 27% | 2 | 76.68 | 1022.7 | ||||
| 23 | 11:52 | N 9 | 16.09 | Mostly Cloudy | BKN190 BKN220 | 5 | -13.3 | 25% | 3 | 76.78 | 1023.7 | ||||||
| 23 | 10:52 | NW 11 | 16.09 | Mostly Cloudy | BKN190 BKN230 | 4.4 | -12.8 | 28% | 2 | 76.84 | 1024.4 | ||||||
| 23 | 09:52 | NW 17 | 16.09 | Mostly Cloudy | BKN190 BKN230 | 5 | -12.2 | 28% | 2 | 76.81 | 1024.3 | ||||||
| 23 | 08:52 | S 6 | 16.09 | Mostly Cloudy | BKN230 | 2.8 | -9.4 | 41% | 76.76 | 1023.7 | |||||||
| 23 | 07:52 | W 6 | 16.09 | Mostly Cloudy | BKN230 | -1.7 | -11.1 | 49% | 76.73 | 1023.4 | |||||||
| 23 | 06:52 | Calm | 16.09 | Mostly Cloudy | BKN230 | -3.9 | -10.6 | 0.6 | -5 | 60% | 76.71 | 1022.8 | |||||
| 23 | 05:52 | Calm | 16.09 | Mostly Cloudy | BKN230 | -2.8 | -10.6 | 55% | 76.68 | 1022.4 | |||||||
| 23 | 04:52 | Calm | 16.09 | Fair | CLR | -3.3 | -11.1 | 55% | 76.66 | 1022.0 | |||||||
| 23 | 03:52 | W 9 | 16.09 | Fair | CLR | -1.7 | -11.7 | 47% | -5 | 76.63 | 1021.8 | ||||||
| 23 | 02:52 | W 6 | 16.09 | Fair | CLR | -2.2 | -10.6 | 53% | 76.63 | 1021.7 | |||||||
| 23 | 01:52 | Calm | 16.09 | Fair | CLR | -2.2 | -11.1 | 51% | 76.58 | 1021.2 | |||||||
| 23 | 00:52 | W 7 | 16.09 | Fair | CLR | 0.6 | -11.1 | 6.7 | -2.2 | 42% | -1 | 76.58 | 1021.1 | ||||
| 22 | 23:52 | Calm | 16.09 | Fair | CLR | 1.1 | -10.6 | 42% | 76.61 | 1021.3 | |||||||
| 22 | 22:52 | NW 7 | 16.09 | A Few Clouds | FEW100 | 3.3 | -10 | 37% | 2 | 76.58 | 1021.2 | ||||||
| 22 | 21:52 | W 13 | 16.09 | Overcast | OVC200 | 3.3 | -9.4 | 39% | 0 | 76.58 | 1021.0 | ||||||
| 22 | 20:52 | NW 13 | 16.09 | Overcast | BKN150 OVC250 | 5 | -8.9 | 36% | 2 | 76.53 | 1020.4 | ||||||
| 22 | 19:52 | NW 11 | 16.09 | Overcast | BKN150 OVC250 | 5.6 | -8.9 | 35% | 3 | 76.5 | 1020.1 | ||||||
| 22 | 18:52 | NW 13 | 16.09 | Overcast | BKN150 OVC250 | 6.7 | -9.4 | 13.3 | 6.7 | 31% | 4 | 76.48 | 1019.9 | ||||
| 22 | 17:52 | W 19 | 16.09 | Mostly Cloudy | SCT150 BKN250 | 7.8 | -10 | 27% | 5 | 76.5 | 1020.0 | ||||||
| 22 | 16:52 | W 15 | 16.09 | Mostly Cloudy | SCT150 BKN250 | 9.4 | -8.9 | 27% | 7 | 76.43 | 1019.1 | ||||||
| 22 | 15:52 | W 24 G 37 | 16.09 | Mostly Cloudy | SCT150 BKN250 | 11.1 | -9.4 | 23% | 76.35 | 1018.0 | |||||||
| 22 | 14:52 | W 26 | 16.09 | Mostly Cloudy | SCT150 BKN250 | 11.1 | -9.4 | 23% | 76.33 | 1017.5 | |||||||
| 22 | 13:52 | W 26 G 44 | 16.09 | Mostly Cloudy | BKN250 | 13.3 | -9.4 | 20% | 76.33 | 1017.6 | |||||||
| 22 | 12:52 | W 19 G 37 | 16.09 | Mostly Cloudy | FEW090 BKN250 | 12.8 | -9.4 | 12.8 | 0.6 | 21% | 76.33 | 1017.7 | |||||
| 22 | 11:52 | NW 9 | 16.09 | A Few Clouds | FEW250 | 11.1 | -5.6 | 31% | 76.4 | 1018.7 | |||||||
| 22 | 10:52 | S 9 | 16.09 | Fair | CLR | 10 | -4.4 | 36% | 9 | 76.45 | 1019.5 | ||||||
| 22 | 09:52 | S 11 | 16.09 | Partly Cloudy | SCT060 | 7.8 | -5 | 40% | 6 | 76.45 | 1019.4 | ||||||
| 22 | 08:52 | S 7 | 16.09 | Partly Cloudy | SCT060 | 5.6 | -6.1 | 43% | 4 | 76.45 | 1019.4 | ||||||
| 22 | 07:52 | Calm | 16.09 | Mostly Cloudy | BKN055 BKN070 BKN250 | 1.1 | -6.7 | 56% | 76.43 | 1019.3 | |||||||
| 22 | 06:52 | Calm | 16.09 | Partly Cloudy | SCT060 | 2.2 | -7.8 | 3.9 | 0.6 | 48% | 76.43 | 1019.1 | |||||
| 22 | 05:52 | S 15 | 16.09 | Fair | CLR | 1.1 | -8.3 | 50% | -3 | 76.3 | 1017.4 | ||||||
| 22 | 04:52 | S 19 | 16.09 | Partly Cloudy | SCT060 | 2.2 | -8.3 | 46% | -2 | 76.28 | 1017.1 | ||||||
| 22 | 03:52 | S 15 | 16.09 | Fair | CLR | 2.2 | -8.3 | 46% | -1 | 76.3 | 1017.5 | ||||||
| 22 | 02:52 | S 17 | 16.09 | A Few Clouds | FEW120 | 2.8 | -8.3 | 44% | -1 | 76.33 | 1017.7 | ||||||
| 22 | 01:52 | S 20 | 16.09 | Fair | CLR | 3.3 | -8.9 | 41% | -1 | 76.35 | 1018.0 | ||||||
| 22 | 00:52 | S 17 | 16.09 | A Few Clouds | FEW095 | 3.9 | -8.9 | 4.4 | 3.3 | 39% | 0 | 76.38 | 1018.4 | ||||
| 21 | 23:52 | S 22 G 35 | 16.09 | Mostly Cloudy | SCT080 BKN095 | 3.9 | -9.4 | 38% | -0 | 76.45 | 1019.5 | ||||||
| 21 | 22:52 | S 22 | 16.09 | Mostly Cloudy | BKN100 | 3.3 | -10.6 | 36% | -1 | 76.48 | 1019.9 | ||||||
| 21 | 21:52 | S 20 | 16.09 | Overcast | SCT080 OVC160 | 3.3 | -11.1 | 34% | -1 | 76.5 | 1020.4 | ||||||
| 21 | 20:52 | S 17 G 31 | 16.09 | Mostly Cloudy | BKN080 | 3.9 | -12.2 | 30% | 0 | 76.61 | 1021.5 | ||||||
| 21 | 19:52 | S 19 G 35 | 16.09 | Mostly Cloudy | BKN080 | 3.9 | -12.8 | 29% | 0 | 76.66 | 1022.4 | ||||||
| 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 | ||||||
| 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) | |||||||||||||||