Weather observations for the past three days for
Washington/Dulles International Airport, DC
| Date | Time (edt) | 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. | ||||||||||||||||
| 18 | 12:52 | Vrbl 9 | 16.09 | Mostly Cloudy | SCT038 BKN047 BKN070 BKN250 | 28.9 | 19.4 | 57% | 30 | 76.45 | 1018.9 | ||||||
| 18 | 11:52 | N 15 | 16.09 | Mostly Cloudy | BKN034 BKN047 BKN250 | 28.3 | 20.6 | 63% | 30 | 76.48 | 1019.5 | ||||||
| 18 | 10:52 | N 17 | 16.09 | Mostly Cloudy | SCT028 BKN036 BKN047 BKN250 | 27.2 | 20.6 | 67% | 29 | 76.5 | 1019.8 | ||||||
| 18 | 08:52 | NW 11 | 16.09 | Partly Cloudy | FEW020 FEW100 SCT250 | 25.6 | 22.2 | 82% | 27 | 76.48 | 1019.3 | ||||||
| 18 | 07:52 | Vrbl 9 | 14.48 | Mostly Cloudy | FEW050 FEW100 BKN250 | 22.8 | 21.1 | 90% | 76.48 | 1019.2 | |||||||
| 18 | 06:52 | Calm | 14.48 | Mostly Cloudy | SCT050 SCT120 BKN250 | 22.2 | 21.1 | 94% | 76.45 | 1019.0 | |||||||
| 18 | 05:52 | S 6 | 11.27 | A Few Clouds | FEW100 | 22.8 | 22.2 | 96% | 76.4 | 1018.3 | |||||||
| 18 | 04:52 | S 6 | 11.27 | A Few Clouds | FEW100 | 22.8 | 22.2 | 96% | 76.4 | 1018.3 | |||||||
| 18 | 03:52 | S 7 | 11.27 | Mostly Cloudy | BKN100 | 22.8 | 22.2 | 96% | 76.4 | 1018.2 | |||||||
| 18 | 02:52 | S 6 | 11.27 | Mostly Cloudy | BKN100 | 22.8 | 22.2 | 96% | 76.4 | 1018.3 | |||||||
| 18 | 01:52 | S 7 | 11.27 | Mostly Cloudy | BKN100 BKN200 | 22.8 | 22.2 | 22.8 | 22.2 | 96% | 76.4 | 1018.5 | |||||
| 18 | 00:52 | S 7 | 11.27 | Mostly Cloudy | BKN200 | 22.8 | 22.2 | 96% | 76.43 | 1018.7 | |||||||
| 17 | 23:52 | S 7 | 12.87 | Mostly Cloudy | BKN100 | 22.8 | 22.2 | 96% | 76.48 | 1019.3 | |||||||
| 17 | 22:52 | SW 9 | 16.09 | Overcast | FEW065 BKN075 BKN100 OVC250 | 22.8 | 22.2 | 96% | 76.53 | 1019.9 | |||||||
| 17 | 21:52 | Calm | 14.48 | Mostly Cloudy | SCT065 BKN250 | 23 | 22 | 94% | 76.53 | 0.0 | |||||||
| 17 | 20:52 | Calm | 16.09 | Mostly Cloudy | FEW065 SCT140 BKN190 BKN240 | 22.2 | 21.7 | 97% | 76.53 | 1019.9 | |||||||
| 17 | 19:52 | S 9 | 16.09 | Mostly Cloudy | FEW046 SCT060 BKN210 BKN250 | 22.8 | 21.7 | 28.3 | 22.8 | 94% | 76.5 | 1019.7 | 0.36 | ||||
| 17 | 18:52 | S 11 | 16.09 | Mostly Cloudy | FEW044 SCT075 BKN140 BKN210 | 23.3 | 22.2 | 94% | 76.53 | 1020.2 | |||||||
| 17 | 17:52 | S 11 | 16.09 | Mostly Cloudy | FEW020 SCT044TCU BKN075 BKN190 BKN250 | 23.9 | 22.2 | 90% | 23 | 76.56 | 1020.3 | ||||||
| 17 | 16:52 | SW 7 | 16.09 | Light Rain | FEW020 SCT044 BKN070 BKN160 BKN250 | 24.4 | 23.3 | 94% | 24 | 76.56 | 1020.3 | 0.03 | 0.36 | ||||
| 17 | 15:52 | S 6 | 16.09 | Light Rain | FEW020 FEW070 SCT110 BKN150 BKN200 BKN250 | 24.4 | 23.3 | 94% | 24 | 76.58 | 1020.8 | ||||||
| 17 | 14:52 | S 11 | 11.27 | Light Rain | FEW044 SCT070CB BKN120 BKN180 BKN250 | 24.4 | 23.3 | 94% | 24 | 76.66 | 1021.7 | 0.33 | |||||
| 17 | 13:52 | NE 13 | 16.09 | Thunderstorm | FEW040 BKN060CB BKN110 BKN150 BKN250 | 28.3 | 21.7 | 30.6 | 21.1 | 67% | 31 | 76.68 | 1022.2 | ||||
| 17 | 12:52 | Vrbl 9 | 16.09 | Mostly Cloudy | SCT060TCU SCT100 BKN150 BKN250 | 30 | 21.1 | 59% | 33 | 76.68 | 1022.0 | ||||||
| 17 | 11:52 | SE 9 | 16.09 | Mostly Cloudy | FEW080 FEW150 BKN250 | 28.3 | 21.1 | 65% | 31 | 76.78 | 1023.3 | ||||||
| 17 | 10:52 | SW 9 | 16.09 | Partly Cloudy | FEW080 FEW150 SCT250 | 26.7 | 20 | 67% | 28 | 76.81 | 1023.9 | ||||||
| 17 | 08:52 | S 9 | 16.09 | Mostly Cloudy | FEW070 FEW120 BKN250 | 22.8 | 18.9 | 79% | 76.81 | 1023.8 | |||||||
| 17 | 07:52 | SE 9 | 16.09 | Mostly Cloudy | FEW070 FEW120 BKN250 | 21.1 | 18.9 | 21.7 | 18.9 | 87% | 76.84 | 1024.0 | |||||
| 17 | 06:52 | Calm | 16.09 | Mostly Cloudy | FEW060 FEW120 BKN250 | 18.9 | 18.3 | 96% | 76.81 | 1023.8 | |||||||
| 17 | 05:52 | Calm | 16.09 | Partly Cloudy | SCT055 | 20.6 | 18.3 | 87% | 76.81 | 1023.7 | |||||||
| 17 | 04:52 | Calm | 16.09 | Partly Cloudy | SCT055 | 20.6 | 18.3 | 87% | 76.81 | 1023.9 | |||||||
| 17 | 03:52 | SE 7 | 16.09 | Mostly Cloudy | SCT055 BKN110 | 21.1 | 18.3 | 84% | 76.81 | 1023.9 | |||||||
| 17 | 02:52 | SE 9 | 16.09 | Mostly Cloudy | BKN055 | 21.1 | 18.9 | 87% | 76.86 | 1024.3 | |||||||
| 17 | 01:52 | SE 6 | 16.09 | A Few Clouds | FEW120 | 21.1 | 18.3 | 25.6 | 21.1 | 84% | 76.86 | 1024.5 | |||||
| 17 | 00:52 | S 6 | 16.09 | A Few Clouds | FEW060 FEW120 | 21.7 | 18.3 | 81% | 76.91 | 1025.0 | |||||||
| 16 | 23:52 | SE 7 | 16.09 | Partly Cloudy | SCT120 | 22.2 | 18.3 | 79% | 76.94 | 1025.3 | |||||||
| 16 | 22:52 | S 6 | 16.09 | Fair | CLR | 23.3 | 18.3 | 74% | 76.96 | 1025.6 | |||||||
| 16 | 21:52 | S 9 | 16.09 | Fair | CLR | 23.9 | 18.9 | 74% | 25 | 76.96 | 1025.6 | ||||||
| 16 | 20:52 | S 9 | 16.09 | A Few Clouds | FEW100 FEW250 | 25 | 18.3 | 66% | 26 | 76.96 | 1025.7 | ||||||
| 16 | 19:52 | S 9 | 16.09 | A Few Clouds | FEW100 FEW250 | 25.6 | 18.9 | 29.4 | 25.6 | 67% | 27 | 76.91 | 1025.0 | ||||
| 16 | 18:52 | S 11 | 16.09 | Fair | CLR | 26.7 | 18.9 | 62% | 28 | 76.91 | 1025.0 | ||||||
| 16 | 16:52 | S 9 | 16.09 | A Few Clouds | FEW250 | 28.9 | 18.9 | 55% | 30 | 76.94 | 1025.4 | ||||||
| 16 | 15:52 | SW 17 | 16.09 | A Few Clouds | FEW250 | 28.9 | 18.3 | 53% | 30 | 76.96 | 1025.7 | ||||||
| 16 | 14:52 | S 9 | 16.09 | A Few Clouds | FEW250 | 28.9 | 18.3 | 53% | 30 | 77.01 | 1026.5 | ||||||
| 16 | 13:52 | Vrbl 6 | 16.09 | A Few Clouds | FEW250 | 27.8 | 17.8 | 27.8 | 17.8 | 55% | 29 | 77.06 | 1027.2 | ||||
| 16 | 12:52 | S 13 | 16.09 | A Few Clouds | FEW250 | 26.7 | 17.2 | 56% | 27 | 77.11 | 1027.7 | ||||||
| 16 | 11:52 | S 11 | 16.09 | A Few Clouds | FEW250 | 25 | 16.7 | 60% | 26 | 77.14 | 1028.1 | ||||||
| 16 | 10:52 | SW 13 | 16.09 | A Few Clouds | FEW110 FEW250 | 23.9 | 16.1 | 62% | 25 | 77.17 | 1028.7 | ||||||
| 16 | 09:52 | SW 13 | 16.09 | A Few Clouds | FEW120 FEW250 | 21.7 | 16.1 | 71% | 77.17 | 1028.6 | |||||||
| 16 | 08:52 | S 9 | 16.09 | A Few Clouds | FEW120 FEW250 | 19.4 | 15 | 76% | 77.14 | 1028.4 | |||||||
| 16 | 07:52 | SW 7 | 16.09 | A Few Clouds | FEW250 | 17.8 | 15 | 17.8 | 14.4 | 84% | 77.14 | 1028.2 | |||||
| 16 | 06:52 | S 9 | 16.09 | Fair | CLR | 16.7 | 13.9 | 84% | 77.09 | 1027.5 | |||||||
| 16 | 05:52 | SE 9 | 16.09 | Fair | CLR | 16.1 | 13.9 | 87% | 77.06 | 1027.2 | |||||||
| 16 | 04:52 | SE 6 | 16.09 | Fair | CLR | 15 | 13.9 | 93% | 77.04 | 1026.8 | |||||||
| 16 | 03:52 | Calm | 16.09 | Fair | CLR | 15 | 13.9 | 93% | 77.01 | 1026.6 | |||||||
| 16 | 02:52 | Calm | 16.09 | Fair | CLR | 15.6 | 13.9 | 90% | 77.01 | 1026.6 | |||||||
| 16 | 01:52 | S 6 | 16.09 | Fair | CLR | 16.1 | 13.9 | 20.6 | 15.6 | 87% | 77.01 | 1026.4 | |||||
| 16 | 00:52 | S 7 | 16.09 | Fair | CLR | 16.7 | 13.3 | 80% | 77.04 | 1026.8 | |||||||
| 15 | 23:52 | Calm | 16.09 | Fair | CLR | 17.8 | 13.3 | 75% | 77.06 | 1027.2 | |||||||
| 15 | 22:52 | S 7 | 16.09 | Fair | CLR | 18.3 | 13.3 | 73% | 77.06 | 1027.1 | |||||||
| 15 | 20:52 | S 9 | 16.09 | Fair | CLR | 20 | 12.2 | 61% | 77.06 | 1027.1 | |||||||
| 15 | 19:52 | SE 7 | 16.09 | A Few Clouds | FEW250 | 20.6 | 11.7 | 25 | 20.6 | 57% | 77.01 | 1026.5 | |||||
| 15 | 18:52 | S 7 | 16.09 | Fair | CLR | 22.2 | 11.7 | 52% | 77.01 | 1026.4 | |||||||
| 15 | 17:52 | Vrbl 6 | 16.09 | Fair | CLR | 23.9 | 11.7 | 46% | 25 | 77.01 | 1026.6 | ||||||
| 15 | 16:52 | SE 13 | 16.09 | A Few Clouds | FEW250 | 24.4 | 11.7 | 45% | 26 | 77.01 | 1026.5 | ||||||
| 15 | 15:52 | S 9 | 16.09 | A Few Clouds | FEW250 | 25 | 11.7 | 43% | 26 | 77.04 | 1026.8 | ||||||
| Date | Time (edt) | 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) | |||||||||||||||