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. | ||||||||||||||||
| 29 | 12:52 | W 19 G 39 | 16.09 | A Few Clouds | FEW060 | -6.1 | -17.2 | -5.6 | -10.6 | 41% | -12 | 76.76 | 1023.9 | ||||
| 29 | 11:52 | W 19 G 33 | 16.09 | A Few Clouds | FEW060 | -6.7 | -18.3 | 40% | -13 | 76.81 | 1024.7 | ||||||
| 29 | 10:52 | W 20 G 30 | 16.09 | A Few Clouds | FEW060 | -7.2 | -18.9 | 39% | -14 | 76.86 | 1025.2 | ||||||
| 29 | 09:52 | NW 11 | 16.09 | A Few Clouds | FEW060 | -8.3 | -19.4 | 41% | -13 | 76.86 | 1025.2 | ||||||
| 29 | 08:52 | NW 6 | 16.09 | Mostly Cloudy | FEW050 BKN120 | -9.4 | -20 | 42% | 76.86 | 1025.1 | |||||||
| 29 | 07:52 | NW 17 | 16.09 | A Few Clouds | FEW050 | -10.6 | -20.6 | 44% | -17 | 76.78 | 1024.2 | ||||||
| 29 | 06:52 | NW 28 G 37 | 16.09 | Fair | CLR | -10.6 | -20.6 | -8.3 | -10.6 | 44% | -19 | 76.73 | 1023.6 | ||||
| 29 | 05:52 | N 19 | 16.09 | Fair | CLR | -10 | -20 | 44% | -17 | 76.71 | 1023.0 | ||||||
| 29 | 04:52 | NW 19 G 35 | 16.09 | Fair | CLR | -10 | -19.4 | 47% | -17 | 76.66 | 1022.4 | ||||||
| 29 | 03:52 | NW 19 | 16.09 | Fair | CLR | -9.4 | -18.9 | 46% | -16 | 76.63 | 1021.9 | ||||||
| 29 | 02:52 | NW 20 | 16.09 | Fair | CLR | -8.9 | -17.8 | 49% | -16 | 76.61 | 1021.8 | ||||||
| 29 | 01:52 | NW 17 | 16.09 | A Few Clouds | FEW050 | -8.3 | -17.2 | 49% | -15 | 76.56 | 1021.0 | ||||||
| 29 | 00:52 | NW 15 | 16.09 | Fair | CLR | -8.3 | -16.7 | -5.6 | -8.9 | 51% | -14 | 76.5 | 1020.2 | ||||
| 28 | 23:52 | NW 11 | 16.09 | Fair | CLR | -8.3 | -16.7 | 51% | -13 | 76.5 | 1020.4 | ||||||
| 28 | 22:52 | NW 15 | 16.09 | A Few Clouds | FEW060 | -7.8 | -16.7 | 49% | -13 | 76.5 | 1020.5 | ||||||
| 28 | 21:52 | NW 22 | 16.09 | A Few Clouds | FEW060 | -7.2 | -16.7 | 47% | -14 | 76.5 | 1020.3 | ||||||
| 28 | 20:52 | NW 17 | 16.09 | A Few Clouds | FEW060 | -6.7 | -16.7 | 45% | -13 | 76.45 | 1019.6 | ||||||
| 28 | 19:52 | NW 15 | 16.09 | A Few Clouds | FEW055 | -6.7 | -14.4 | 55% | -12 | 76.43 | 1019.5 | ||||||
| 28 | 18:52 | NW 7 | 16.09 | A Few Clouds | FEW055 | -5.6 | -15 | -4.4 | -6.1 | 48% | -9 | 76.43 | 1019.4 | ||||
| 28 | 17:52 | NW 7 | 16.09 | Mostly Cloudy | BKN060 | -5.6 | -14.4 | 50% | -9 | 76.38 | 1018.7 | ||||||
| 28 | 16:52 | SW 6 | 16.09 | Mostly Cloudy | BKN250 | -5 | -14.4 | 48% | 76.33 | 1018.1 | |||||||
| 28 | 15:52 | Vrbl 6 | 16.09 | Partly Cloudy | FEW150 SCT250 | -4.4 | -15 | 44% | 76.35 | 1018.4 | |||||||
| 28 | 14:52 | SW 13 | 16.09 | Mostly Cloudy | SCT150 BKN250 | -5 | -15.6 | 44% | -10 | 76.4 | 1019.0 | ||||||
| 28 | 13:52 | Calm | 16.09 | Mostly Cloudy | BKN250 | -5 | -16.1 | 42% | 76.45 | 1019.7 | |||||||
| 28 | 12:52 | Vrbl 7 | 16.09 | Mostly Cloudy | BKN250 | -5.6 | -16.1 | -5.6 | -10 | 44% | -9 | 76.56 | 1020.9 | ||||
| 28 | 11:52 | Calm | 16.09 | A Few Clouds | FEW250 | -6.1 | -16.7 | 43% | 76.66 | 1022.5 | |||||||
| 28 | 10:52 | N 9 | 16.09 | A Few Clouds | FEW250 | -7.2 | -17.2 | 45% | -11 | 76.78 | 1023.9 | ||||||
| 28 | 09:52 | NW 15 | 16.09 | A Few Clouds | FEW250 | -8.3 | -17.8 | 47% | -14 | 76.84 | 1024.7 | ||||||
| 28 | 08:52 | N 7 | 16.09 | A Few Clouds | FEW250 | -8.9 | -18.3 | 47% | -12 | 76.86 | 1025.2 | ||||||
| 28 | 07:52 | N 11 | 16.09 | A Few Clouds | FEW200 | -9.4 | -18.9 | 46% | -14 | 76.86 | 1025.0 | ||||||
| 28 | 06:52 | N 15 | 16.09 | A Few Clouds | FEW050 | -9.4 | -18.3 | -6.1 | -9.4 | 49% | -15 | 76.84 | 1024.6 | ||||
| 28 | 05:52 | N 15 | 16.09 | A Few Clouds | FEW050 | -9.4 | -17.8 | 51% | -15 | 76.81 | 1024.6 | ||||||
| 28 | 04:52 | N 20 | 16.09 | Fair | CLR | -8.3 | -17.8 | 47% | -15 | 76.78 | 1024.1 | ||||||
| 28 | 03:52 | N 15 | 16.09 | Mostly Cloudy | BKN050 | -8.3 | -16.7 | 51% | -14 | 76.78 | 1024.2 | ||||||
| 28 | 02:52 | N 19 | 16.09 | A Few Clouds | FEW055 | -7.8 | -17.2 | 47% | -14 | 76.76 | 1023.7 | ||||||
| 28 | 01:52 | NW 30 G 46 | 16.09 | Partly Cloudy | SCT055 | -6.7 | -17.2 | 43% | -15 | 76.68 | 1022.8 | ||||||
| 28 | 00:52 | NW 15 | 16.09 | Partly Cloudy | SCT060 | -6.1 | -15.6 | -2.8 | -6.1 | 47% | -11 | 76.66 | 1022.4 | ||||
| 27 | 23:52 | NW 17 G 33 | 16.09 | Mostly Cloudy | BKN055 | -5.6 | -14.4 | 50% | -11 | 76.63 | 1022.1 | ||||||
| 27 | 22:52 | NW 13 | 16.09 | Overcast | SCT050 OVC065 | -5.6 | -12.8 | 57% | -10 | 76.61 | 1021.6 | ||||||
| 27 | 21:52 | NW 17 | 16.09 | Overcast | OVC060 | -4.4 | -13.9 | 48% | -10 | 76.53 | 1020.7 | ||||||
| 27 | 20:52 | NW 17 | 16.09 | Mostly Cloudy | BKN060 | -4.4 | -14.4 | 46% | -10 | 76.5 | 1020.5 | ||||||
| 27 | 19:52 | NW 24 G 41 | 16.09 | Fair | CLR | -3.9 | -14.4 | 44% | -10 | 76.4 | 1019.2 | ||||||
| 27 | 18:52 | NW 17 | 16.09 | A Few Clouds | FEW065 | -2.8 | -14.4 | -1.7 | -5 | 41% | -8 | 76.33 | 1017.9 | ||||
| 27 | 17:52 | SW 7 | 16.09 | A Few Clouds | FEW065 | -2.2 | -16.1 | 34% | -5 | 76.2 | 1016.4 | ||||||
| 27 | 16:52 | SW 17 | 16.09 | Mostly Cloudy | BKN070 | -1.7 | -15.6 | 34% | -6 | 76.15 | 1015.8 | ||||||
| 27 | 15:52 | S 15 G 33 | 16.09 | Overcast | BKN080 OVC120 | -2.2 | -16.1 | 34% | -7 | 76.15 | 1015.7 | ||||||
| 27 | 14:52 | S 19 G 39 | 16.09 | A Few Clouds | FEW200 | -2.8 | -17.8 | 31% | -8 | 76.17 | 1016.0 | ||||||
| 27 | 13:52 | SW 20 | 16.09 | Mostly Cloudy | BKN220 | -3.9 | -18.3 | 32% | -10 | 76.25 | 1016.9 | ||||||
| 27 | 12:52 | S 24 | 16.09 | Mostly Cloudy | SCT130 BKN220 | -5 | -18.9 | -5 | -16.1 | 33% | -12 | 76.33 | 1018.0 | ||||
| 27 | 11:52 | SW 20 | 16.09 | Mostly Cloudy | BKN200 | -6.1 | -18.9 | 36% | -12 | 76.5 | 1020.2 | ||||||
| 27 | 10:52 | S 15 | 16.09 | Partly Cloudy | SCT200 | -7.8 | -18.3 | 43% | -13 | 76.58 | 1021.5 | ||||||
| 27 | 09:52 | SW 13 | 16.09 | Fair | CLR | -8.9 | -18.3 | 47% | -14 | 76.66 | 1022.4 | ||||||
| 27 | 08:52 | S 7 | 16.09 | Fair | CLR | -11.1 | -18.3 | 56% | -15 | 76.71 | 1023.2 | ||||||
| 27 | 07:52 | SE 7 | 16.09 | Fair | CLR | -15.6 | -18.9 | 76% | -20 | 76.76 | 1023.9 | ||||||
| 27 | 06:52 | Calm | 16.09 | Fair | CLR | -14.4 | -18.9 | -8.3 | -15.6 | 69% | 76.76 | 1023.8 | |||||
| 27 | 05:52 | Calm | 16.09 | Fair | CLR | -14.4 | -18.9 | 69% | 76.78 | 1024.1 | |||||||
| 27 | 04:52 | S 6 | 16.09 | Fair | CLR | -13.3 | -18.9 | 63% | 76.78 | 1024.1 | |||||||
| 27 | 03:52 | Calm | 16.09 | Fair | CLR | -11.1 | -17.8 | 58% | 76.76 | 1023.9 | |||||||
| 27 | 02:52 | W 22 | 16.09 | Fair | CLR | -9.4 | -17.8 | 51% | -17 | 76.73 | 1023.2 | ||||||
| 27 | 01:52 | W 17 | 16.09 | Fair | CLR | -9.4 | -17.2 | 53% | -16 | 76.73 | 1023.3 | ||||||
| 27 | 00:52 | NW 15 | 16.09 | Fair | CLR | -8.3 | -16.7 | -6.1 | -8.3 | 51% | -14 | 76.71 | 1023.1 | ||||
| 26 | 23:52 | NW 28 G 44 | 16.09 | A Few Clouds | FEW050 | -7.8 | -16.1 | 52% | -16 | 76.68 | 1022.8 | ||||||
| 26 | 22:52 | NW 24 G 44 | 16.09 | A Few Clouds | FEW055 | -7.8 | -16.7 | 49% | -15 | 76.66 | 1022.2 | ||||||
| 26 | 21:52 | W 31 G 48 | 16.09 | A Few Clouds | FEW055 | -7.8 | -16.1 | 52% | -16 | 76.58 | 1021.2 | ||||||
| 26 | 20:52 | NW 33 G 48 | 16.09 | A Few Clouds and Breezy | FEW045 | -7.2 | -16.1 | 49% | -16 | 76.53 | 1020.7 | ||||||
| 26 | 19:52 | NW 30 G 46 | 16.09 | A Few Clouds | FEW045 | -6.1 | -15 | 50% | -14 | 76.48 | 1019.9 | ||||||
| 26 | 18:52 | NW 28 G 44 | 16.09 | A Few Clouds | FEW048 | -6.1 | -15.6 | -3.3 | -6.1 | 47% | -14 | 76.4 | 1019.1 | ||||
| 26 | 17:52 | NW 28 G 52 | 16.09 | Partly Cloudy | SCT050 | -5.6 | -15.6 | 46% | -13 | 76.33 | 1017.9 | ||||||
| 26 | 16:52 | NW 43 G 61 | 16.09 | Partly Cloudy and Windy | SCT050 | -5 | -15.6 | 44% | -14 | 76.25 | 1016.8 | ||||||
| 26 | 15:52 | W 39 G 56 | 16.09 | Partly Cloudy and Breezy | SCT050 | -3.9 | -13.9 | 46% | -12 | 76.15 | 1015.7 | ||||||
| 26 | 14:52 | W 41 G 63 | 16.09 | A Few Clouds and Breezy | FEW049 | -3.9 | -13.9 | 46% | -12 | 76.1 | 1015.0 | ||||||
| 26 | 13:52 | NW 33 G 50 | 16.09 | Partly Cloudy and Breezy | SCT047 SCT120 | -3.9 | -13.3 | 48% | -11 | 76.05 | 1014.4 | ||||||
| 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) | |||||||||||||||