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. | ||||||||||||||||
| 03 | 23:52 | Calm | 16.09 | Partly Cloudy | SCT200 | -3.3 | -4.4 | 92% | 76.45 | 1019.6 | |||||||
| 03 | 22:52 | Calm | 16.09 | Partly Cloudy | SCT200 | -1.1 | -3.3 | 85% | 76.48 | 1019.6 | |||||||
| 03 | 21:52 | Calm | 16.09 | Partly Cloudy | SCT200 | -2.8 | -4.4 | 89% | 76.48 | 1019.9 | |||||||
| 03 | 20:52 | Calm | 16.09 | Fair | CLR | -1.7 | -3.9 | 85% | 76.48 | 1019.8 | |||||||
| 03 | 19:52 | SE 6 | 16.09 | Fair | CLR | -1.7 | -3.9 | 85% | 76.48 | 1019.8 | |||||||
| 03 | 18:52 | Calm | 16.09 | Fair | CLR | -0.6 | -3.9 | 6.7 | -1.1 | 79% | 76.45 | 1019.7 | |||||
| 03 | 17:52 | Calm | 16.09 | Fair | CLR | 2.2 | -3.3 | 67% | 76.43 | 1019.2 | |||||||
| 03 | 16:52 | Calm | 16.09 | A Few Clouds | FEW250 | 2.2 | -3.3 | 67% | 76.4 | 1018.7 | |||||||
| 03 | 15:52 | NW 7 | 16.09 | Fair | CLR | 6.1 | -3.9 | 49% | 5 | 76.38 | 1018.5 | ||||||
| 03 | 14:52 | Calm | 16.09 | A Few Clouds | FEW060 | 6.1 | -4.4 | 47% | 76.4 | 1018.7 | |||||||
| 03 | 13:52 | W 15 | 16.09 | A Few Clouds | FEW039 FEW250 | 5.6 | -4.4 | 49% | 3 | 76.38 | 1018.5 | ||||||
| 03 | 12:52 | N 7 | 16.09 | A Few Clouds | FEW035 FEW250 | 5.6 | -3.9 | 6.1 | -1.1 | 51% | 4 | 76.43 | 1019.1 | ||||
| 03 | 11:52 | NW 11 | 16.09 | A Few Clouds | FEW035 FEW250 | 5.6 | -3.9 | 51% | 3 | 76.48 | 1019.8 | ||||||
| 03 | 10:52 | NW 17 | 16.09 | A Few Clouds | FEW035 FEW250 | 5 | -4.4 | 51% | 2 | 76.56 | 1020.8 | ||||||
| 03 | 09:52 | NW 17 | 16.09 | A Few Clouds | FEW032 FEW250 | 3.9 | -4.4 | 55% | 0 | 76.53 | 1020.3 | ||||||
| 03 | 08:52 | NW 15 | 16.09 | Partly Cloudy | FEW032 SCT250 | 2.2 | -5.6 | 57% | -1 | 76.5 | 1020.1 | ||||||
| 03 | 07:52 | NW 6 | 16.09 | Mostly Cloudy | FEW032 BKN250 | 0 | -5.6 | 66% | 76.45 | 1019.6 | |||||||
| 03 | 06:52 | NW 11 | 16.09 | A Few Clouds | FEW032 FEW250 | 0 | -6.1 | 1.7 | -0.6 | 64% | -3 | 76.38 | 1018.4 | ||||
| 03 | 05:52 | N 9 G 28 | 16.09 | Fair | CLR | 0 | -6.7 | 61% | -3 | 76.3 | 1017.3 | ||||||
| 03 | 04:52 | NW 17 | 16.09 | Fair | CLR | 0.6 | -6.1 | 61% | -4 | 76.23 | 1016.2 | ||||||
| 03 | 03:52 | NW 15 | 16.09 | A Few Clouds | FEW040 | 0.6 | -6.1 | 61% | -3 | 76.25 | 1016.9 | ||||||
| 03 | 02:52 | NW 13 | 16.09 | Fair | CLR | 0.6 | -5.6 | 64% | -3 | 76.23 | 1016.5 | ||||||
| 03 | 01:52 | NW 13 | 16.09 | Fair | CLR | 0.6 | -5 | 66% | -3 | 76.2 | 1015.9 | ||||||
| 03 | 00:52 | N 11 | 16.09 | Overcast | OVC034 | 1.7 | -3.9 | 4.4 | 1.7 | 67% | -1 | 76.12 | 1015.1 | ||||
| 02 | 23:52 | NW 24 | 16.09 | Overcast | OVC034 | 2.2 | -3.3 | 67% | -3 | 76.05 | 1013.9 | ||||||
| 02 | 22:52 | NW 24 G 43 | 16.09 | Overcast | OVC033 | 2.8 | -2.8 | 67% | -2 | 76.02 | 1013.8 | ||||||
| 02 | 21:52 | NW 35 G 52 | 16.09 | Overcast and Breezy | OVC032 | 2.8 | -2.8 | 67% | -3 | 75.95 | 1012.8 | ||||||
| 02 | 20:52 | NW 20 G 35 | 16.09 | Mostly Cloudy | BKN031 | 3.3 | -2.8 | 65% | -1 | 75.9 | 1012.0 | ||||||
| 02 | 19:52 | NW 31 G 43 | 16.09 | Overcast | OVC027 | 4.4 | -1.1 | 68% | -0 | 75.79 | 1010.6 | ||||||
| 02 | 18:52 | NW 17 | 16.09 | Overcast | FEW024 OVC035 | 3.9 | 0.6 | 4.4 | 2.8 | 79% | 0 | 75.72 | 1009.5 | ||||
| 02 | 17:52 | N 17 | 16.09 | Mostly Cloudy | BKN033 BKN090 | 3.9 | 0.6 | 79% | 0 | 75.67 | 1008.8 | ||||||
| 02 | 16:52 | NW 22 | 16.09 | Mostly Cloudy | FEW012 BKN090 | 3.3 | 0.6 | 83% | -1 | 75.59 | 1007.9 | ||||||
| 02 | 15:52 | NW 22 G 31 | 16.09 | Mostly Cloudy | FEW012 BKN045 BKN110 | 4.4 | 1.7 | 83% | 0 | 75.54 | 1007.1 | ||||||
| 02 | 14:52 | NW 15 | 16.09 | Overcast | SCT010 BKN042 OVC120 | 4.4 | 2.8 | 89% | 1 | 75.49 | 1006.6 | ||||||
| 02 | 13:52 | N 17 | 16.09 | Mostly Cloudy | BKN007 BKN042 BKN095 BKN130 BKN250 | 3.9 | 2.2 | 89% | 0 | 75.51 | 1006.7 | ||||||
| 02 | 12:52 | NW 9 | 11.27 | Light Rain | BKN005 OVC060 | 2.8 | 2.2 | 2.8 | 0.6 | 96% | 1 | 75.57 | 1007.5 | 0.1 | 1.37 | ||
| 02 | 11:52 | NE 6 | 6.44 | Light Rain Fog/Mist | FEW006 BKN024 OVC041 | 2.8 | 1.7 | 93% | 75.64 | 1008.6 | 0.23 | ||||||
| 02 | 10:52 | N 11 | 4.02 | Light Rain Fog/Mist | SCT005 BKN027 OVC033 | 1.7 | 1.1 | 96% | -1 | 75.84 | 1011.2 | 0.23 | |||||
| 02 | 09:52 | N 11 | 3.22 | Rain Fog/Mist | BKN005 BKN013 OVC020 | 1.1 | 0.6 | 97% | -2 | 75.97 | 1013.3 | 0.38 | 0.81 | ||||
| 02 | 08:52 | Calm | 4.02 | Rain Fog/Mist | FEW005 BKN007 OVC013 | 1.1 | 0.6 | 97% | 75.97 | 1013.3 | 0.25 | ||||||
| 02 | 07:52 | SW 7 | 6.44 | Light Rain Fog/Mist | SCT010 BKN017 OVC050 | 1.1 | 0.6 | 97% | -1 | 76.05 | 1014.1 | 0.18 | |||||
| 02 | 06:52 | S 7 | 9.66 | Light Rain Fog/Mist | BKN015 BKN020 OVC060 | 0.6 | -0.6 | 2.8 | 0.6 | 92% | -1 | 76.1 | 1014.7 | 0.2 | 0.48 | ||
| 02 | 05:52 | SW 7 | 11.27 | Rain | OVC021 | 0.6 | -0.6 | 92% | -1 | 76.2 | 1016.3 | 0.25 | |||||
| 02 | 04:52 | S 6 | 11.27 | Rain | OVC027 | 2.2 | -2.2 | 73% | 76.25 | 1016.8 | 0.03 | ||||||
| 02 | 03:52 | S 11 | 16.09 | Overcast | BKN033 OVC110 | 2.2 | -3.9 | 64% | -1 | 76.35 | 1018.3 | ||||||
| 02 | 02:52 | S 7 | 16.09 | Overcast | OVC140 | 2.2 | -3.9 | 64% | 0 | 76.43 | 1019.0 | ||||||
| 02 | 01:52 | S 11 | 16.09 | Overcast | OVC140 | 2.2 | -4.4 | 62% | -1 | 76.5 | 1020.2 | ||||||
| 02 | 00:52 | S 9 | 16.09 | Overcast | OVC140 | 2.2 | -3.9 | 2.8 | -3.9 | 64% | -0 | 76.63 | 1021.9 | ||||
| 01 | 23:52 | SE 9 | 16.09 | Overcast | OVC120 | 1.7 | -3.9 | 67% | -1 | 76.71 | 1022.7 | ||||||
| 01 | 22:52 | SE 11 | 16.09 | Partly Cloudy | FEW100 SCT220 | 1.1 | -3.9 | 70% | -2 | 76.78 | 1023.9 | ||||||
| 01 | 21:52 | Calm | 16.09 | Mostly Cloudy | FEW100 BKN220 | -1.7 | -5.6 | 75% | 76.84 | 1024.6 | |||||||
| 01 | 20:52 | SE 9 | 16.09 | A Few Clouds | FEW250 | -0.6 | -6.1 | 67% | -3 | 76.86 | 1025.0 | ||||||
| 01 | 19:52 | Calm | 16.09 | A Few Clouds | FEW250 | -2.2 | -6.7 | 72% | 76.91 | 1025.7 | |||||||
| 01 | 18:52 | Calm | 16.09 | A Few Clouds | FEW250 | 0 | -6.7 | 6.7 | -1.7 | 61% | 76.91 | 1025.7 | |||||
| 01 | 17:52 | Calm | 16.09 | Partly Cloudy | SCT250 | 0 | -6.1 | 64% | 76.96 | 1026.3 | |||||||
| 01 | 16:52 | Calm | 16.09 | Mostly Cloudy | BKN250 | 3.3 | -6.7 | 48% | 76.99 | 1026.6 | |||||||
| 01 | 15:52 | Vrbl 9 | 16.09 | Mostly Cloudy | BKN250 | 5.6 | -7.2 | 40% | 4 | 76.96 | 1026.4 | ||||||
| 01 | 14:52 | N 9 | 16.09 | Mostly Cloudy | BKN250 | 6.7 | -6.7 | 38% | 5 | 77.01 | 1026.9 | ||||||
| 01 | 13:52 | N 13 | 16.09 | Mostly Cloudy | BKN250 | 6.7 | -6.7 | 38% | 4 | 77.01 | 1027.1 | ||||||
| 01 | 12:52 | N 17 G 30 | 16.09 | Mostly Cloudy | FEW045 BKN250 | 6.1 | -6.7 | 6.1 | 0.6 | 40% | 3 | 77.06 | 1027.7 | ||||
| 01 | 11:52 | NW 17 | 16.09 | A Few Clouds | FEW045 FEW250 | 5.6 | -6.7 | 41% | 3 | 77.17 | 1029.0 | ||||||
| 01 | 10:52 | NW 24 G 33 | 16.09 | A Few Clouds | FEW045 FEW250 | 5 | -6.1 | 45% | 1 | 77.27 | 1030.1 | ||||||
| 01 | 09:52 | N 24 G 37 | 16.09 | Partly Cloudy | FEW045 SCT250 | 4.4 | -6.1 | 47% | 0 | 77.29 | 1030.6 | ||||||
| 01 | 08:52 | NW 28 G 37 | 16.09 | Mostly Cloudy | FEW045 BKN250 | 3.3 | -6.1 | 51% | -2 | 77.27 | 1030.5 | ||||||
| 01 | 07:52 | NW 19 | 16.09 | Partly Cloudy | FEW044 SCT250 | 1.7 | -6.1 | 57% | -2 | 77.27 | 1030.2 | ||||||
| 01 | 06:52 | NW 9 | 16.09 | Partly Cloudy | SCT043 | 1.1 | -6.7 | 2.8 | 0 | 56% | -1 | 77.22 | 1029.7 | ||||
| 01 | 05:52 | N 9 | 16.09 | Partly Cloudy | SCT044 | 1.1 | -6.7 | 56% | -1 | 77.17 | 1029.0 | ||||||
| 01 | 04:52 | NW 11 | 16.09 | Mostly Cloudy | BKN047 | 0 | -6.7 | 61% | -3 | 77.11 | 1028.4 | ||||||
| 01 | 03:52 | NW 20 | 16.09 | Partly Cloudy | SCT046 | 1.1 | -6.7 | 56% | -3 | 77.09 | 1027.9 | ||||||
| 01 | 02:52 | NW 22 | 16.09 | Mostly Cloudy | BKN046 | 2.2 | -6.1 | 55% | -2 | 77.06 | 1027.5 | ||||||
| 01 | 01:52 | NW 15 | 16.09 | Mostly Cloudy | SCT050 BKN200 | 2.2 | -5.6 | 57% | -1 | 77.01 | 1026.8 | ||||||
| 01 | 00:52 | NW 15 | 16.09 | Overcast | FEW060 SCT120 OVC200 | 2.2 | -5.6 | 5 | 2.2 | 57% | -1 | 76.94 | 1026.0 | ||||
| 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) | |||||||||||||||