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 | 17:52 | SE 9 | 16.09 | A Few Clouds | FEW150 FEW250 | 8.9 | -2.8 | 44% | 8 | 76.23 | 1016.3 | ||||||
| 21 | 16:52 | SE 7 | 16.09 | Partly Cloudy | FEW150 SCT250 | 11.1 | -2.8 | 38% | 76.2 | 1015.8 | |||||||
| 21 | 15:52 | Calm | 16.09 | Partly Cloudy | FEW150 SCT250 | 11.7 | -3.9 | 34% | 76.17 | 1015.6 | |||||||
| 21 | 14:52 | Calm | 16.09 | Mostly Cloudy | BKN150 BKN250 | 11.7 | -3.3 | 35% | 76.17 | 1015.6 | |||||||
| 21 | 13:52 | N 7 | 16.09 | Mostly Cloudy | BKN170 BKN250 | 10.6 | -3.3 | 38% | 76.17 | 1015.4 | |||||||
| 21 | 12:52 | NE 13 | 16.09 | Mostly Cloudy | BKN170 BKN250 | 9.4 | -2.8 | 11.1 | 5 | 43% | 8 | 76.2 | 1015.8 | ||||
| 21 | 11:52 | NE 11 | 16.09 | Mostly Cloudy | BKN180 BKN250 | 10 | -2.2 | 43% | 9 | 76.17 | 1015.7 | ||||||
| 21 | 10:52 | N 13 | 16.09 | Mostly Cloudy | FEW050 SCT180 BKN250 | 8.9 | -3.3 | 42% | 7 | 76.17 | 1015.5 | ||||||
| 21 | 09:52 | N 15 | 16.09 | Mostly Cloudy | SCT190 BKN250 | 8.3 | -3.3 | 44% | 6 | 76.2 | 1015.9 | ||||||
| 21 | 08:52 | N 13 | 16.09 | Mostly Cloudy | SCT180 BKN250 | 7.2 | -3.9 | 46% | 5 | 76.2 | 1016.1 | ||||||
| 21 | 07:52 | N 19 | 16.09 | Mostly Cloudy | SCT180 BKN250 | 6.7 | -3.9 | 47% | 4 | 76.1 | 1014.6 | ||||||
| 21 | 06:52 | N 15 | 16.09 | A Few Clouds | FEW120 FEW250 | 5.6 | -3.3 | 10.6 | 3.3 | 53% | 3 | 76.02 | 1013.5 | ||||
| 21 | 05:52 | N 15 | 16.09 | Partly Cloudy | SCT250 | 6.1 | -3.9 | 49% | 3 | 75.95 | 1012.3 | ||||||
| 21 | 04:52 | W 6 | 16.09 | Partly Cloudy | SCT250 | 6.1 | -3.3 | 51% | 75.87 | 1011.5 | |||||||
| 21 | 03:52 | NW 11 | 16.09 | A Few Clouds | FEW250 | 6.1 | -2.8 | 53% | 4 | 75.77 | 1010.2 | ||||||
| 21 | 02:52 | NW 9 | 16.09 | Fair | CLR | 7.2 | -3.3 | 48% | 6 | 75.72 | 1009.5 | ||||||
| 21 | 01:52 | W 13 | 16.09 | Fair | CLR | 8.9 | -3.3 | 42% | 7 | 75.74 | 1009.6 | ||||||
| 21 | 00:52 | W 13 | 16.09 | Fair | CLR | 10.6 | -3.9 | 13.3 | 6.7 | 36% | 75.72 | 1009.3 | |||||
| 20 | 23:52 | W 15 | 16.09 | Fair | CLR | 12.2 | -3.9 | 33% | 75.64 | 1008.3 | |||||||
| 20 | 22:52 | W 22 G 33 | 16.09 | Fair | CLR | 13.3 | -4.4 | 29% | 75.57 | 1007.4 | |||||||
| 20 | 21:52 | E 7 | 16.09 | Fair | CLR | 8.9 | 3.9 | 71% | 8 | 75.49 | 1006.5 | ||||||
| 20 | 20:52 | NE 11 | 16.09 | Fair | CLR | 8.3 | 6.7 | 90% | 7 | 75.41 | 1005.3 | ||||||
| 20 | 19:52 | Calm | 16.09 | Fair | CLR | 9.4 | 7.8 | 90% | 75.29 | 1003.9 | |||||||
| 20 | 18:52 | SW 11 | 16.09 | Fair | CLR | 12.2 | 8.9 | 15.6 | 7.8 | 80% | 75.18 | 1002.4 | |||||
| 20 | 17:52 | SW 9 | 16.09 | A Few Clouds | FEW150 | 13.9 | 9.4 | 74% | 75.11 | 1001.4 | |||||||
| 20 | 16:52 | Vrbl 7 | 16.09 | A Few Clouds | FEW150 | 15 | 9.4 | 69% | 75.03 | 1000.4 | |||||||
| 20 | 15:52 | S 13 | 16.09 | A Few Clouds | FEW015 FEW150 | 13.3 | 8.9 | 75% | 75.06 | 1000.6 | |||||||
| 20 | 14:52 | S 13 | 16.09 | Mostly Cloudy | SCT013 BKN200 | 11.1 | 7.2 | 77% | 75.08 | 1001.0 | |||||||
| 20 | 13:52 | S 17 | 16.09 | Mostly Cloudy | BKN011 BKN220 | 9.4 | 6.7 | 83% | 7 | 75.13 | 1001.6 | ||||||
| 20 | 12:52 | S 9 | 11.27 | Overcast | BKN008 OVC012 | 7.8 | 6.1 | 8.3 | 3.9 | 89% | 6 | 75.26 | 1003.3 | 1.19 | |||
| 20 | 11:52 | Calm | 11.27 | Overcast | OVC004 | 6.7 | 5.6 | 93% | 75.36 | 1004.7 | |||||||
| 20 | 10:52 | W 9 | 11.27 | Overcast | OVC004 | 5.6 | 5 | 96% | 4 | 75.41 | 1005.4 | ||||||
| 20 | 09:52 | SE 7 | 11.27 | Overcast | OVC006 | 5 | 3.9 | 93% | 4 | 75.39 | 1004.9 | 0.03 | 1.19 | ||||
| 20 | 08:52 | Calm | 11.27 | Overcast | BKN005 OVC110 | 4.4 | 3.3 | 93% | 75.49 | 1006.4 | 0.23 | ||||||
| 20 | 07:52 | N 6 | 4.83 | Rain Fog/Mist | SCT005 BKN025 OVC038 | 3.9 | 3.3 | 96% | 75.67 | 1008.9 | 0.94 | ||||||
| 20 | 06:52 | N 11 | 4.02 | Heavy Rain Fog/Mist | SCT005 BKN015 OVC021 | 3.3 | 3.3 | 5 | 3.3 | 100% | 1 | 75.64 | 1008.5 | 0.56 | 0.99 | ||
| 20 | 05:52 | E 9 | 8.05 | Light Rain Fog/Mist | SCT004 OVC015 | 3.3 | 2.8 | 97% | 1 | 75.64 | 1008.5 | 0.15 | |||||
| 20 | 04:52 | E 6 | 11.27 | Light Rain | OVC004 | 3.3 | 2.8 | 97% | 75.64 | 1008.5 | 0.03 | ||||||
| 20 | 03:52 | E 13 | 11.27 | Light Drizzle | BKN005 BKN012 OVC028 | 3.3 | 2.8 | 97% | 0 | 75.67 | 1009.0 | 0.18 | 0.25 | ||||
| 20 | 02:52 | E 11 | 0.80 | Light Rain Fog/Mist | OVC003 | 3.9 | 3.3 | 96% | 1 | 75.77 | 1010.3 | 0.08 | |||||
| 20 | 01:52 | E 9 | 0.80 | Light Drizzle Fog | OVC002 | 4.4 | 3.9 | 97% | 2 | 75.84 | 1011.4 | ||||||
| 20 | 00:52 | Calm | 0.80 | Fog | OVC002 | 5 | 4.4 | 5 | 5 | 96% | 75.97 | 1012.9 | 0.48 | ||||
| 19 | 23:52 | Calm | 8.05 | Light Rain Fog/Mist | OVC003 | 5 | 4.4 | 96% | 75.95 | 1012.7 | |||||||
| 19 | 22:52 | NE 6 | 9.66 | Light Rain Fog/Mist | OVC005 | 5 | 4.4 | 96% | 76 | 1013.1 | |||||||
| 19 | 21:52 | E 9 | 9.66 | Fog/Mist | OVC006 | 5 | 4.4 | 96% | 3 | 76.02 | 1013.5 | 0.03 | 0.48 | ||||
| 19 | 20:52 | NE 6 | 9.66 | Light Rain Fog/Mist | OVC007 | 5 | 4.4 | 96% | 76.02 | 1013.7 | 0.2 | ||||||
| 19 | 19:52 | NE 11 | 8.05 | Rain Fog/Mist | OVC006 | 5 | 4.4 | 96% | 3 | 76.05 | 1014.0 | 0.25 | |||||
| 19 | 18:52 | E 13 | 6.44 | Rain Fog/Mist | OVC008 | 5 | 3.9 | 5 | 3.9 | 93% | 2 | 76.02 | 1013.7 | 0.2 | 0.58 | ||
| 19 | 17:52 | NE 15 | 4.02 | Light Rain Fog/Mist | OVC005 | 4.4 | 3.9 | 97% | 1 | 76.02 | 1013.8 | 0.1 | |||||
| 19 | 16:52 | N 15 | 9.66 | Light Rain Fog/Mist | OVC006 | 4.4 | 3.9 | 97% | 1 | 76.02 | 1013.7 | 0.13 | |||||
| 19 | 15:52 | NE 13 | 0.80 | Light Rain Fog/Mist | OVC004 | 4.4 | 3.9 | 97% | 2 | 75.97 | 1013.1 | 0.15 | 0.15 | ||||
| 19 | 14:52 | NE 15 | 0.80 | Light Rain Fog/Mist | OVC003 | 3.9 | 3.3 | 96% | 1 | 76.02 | 1013.8 | ||||||
| 19 | 13:52 | E 11 | 4.02 | Light Rain Fog/Mist | OVC004 | 3.9 | 3.3 | 96% | 1 | 76.05 | 1014.2 | ||||||
| 19 | 12:52 | E 17 | 4.02 | Fog/Mist | OVC004 | 3.9 | 3.3 | 5 | 3.3 | 96% | 0 | 76.17 | 1015.6 | ||||
| 19 | 11:52 | E 19 | 4.02 | Fog/Mist | OVC005 | 4.4 | 3.3 | 93% | 1 | 76.15 | 1015.4 | ||||||
| 19 | 10:52 | NE 11 | 4.02 | Fog/Mist | OVC005 | 4.4 | 3.3 | 93% | 2 | 76.23 | 1016.2 | ||||||
| 19 | 09:52 | NE 13 | 2.01 | Fog/Mist | OVC003 | 4.4 | 3.9 | 97% | 2 | 76.15 | 1015.4 | ||||||
| 19 | 08:52 | E 13 | 1.61 | Fog/Mist | OVC003 | 4.4 | 3.9 | 97% | 2 | 76.17 | 1015.7 | ||||||
| 19 | 07:52 | NE 7 | 2.82 | Fog/Mist | OVC005 | 4.4 | 3.3 | 93% | 3 | 76.12 | 1014.8 | ||||||
| 19 | 06:52 | NE 9 | 6.44 | Fog/Mist | SCT007 | 3.3 | 2.8 | 3.9 | 0.6 | 97% | 1 | 76.05 | 1013.8 | ||||
| 19 | 05:52 | Calm | 9.66 | Fog/Mist | CLR | 1.7 | 1.1 | 96% | 75.95 | 1012.6 | |||||||
| 19 | 04:52 | N 6 | 9.66 | Fog/Mist | CLR | 2.2 | 1.7 | 97% | 75.9 | 1012.0 | |||||||
| 19 | 03:52 | Calm | 9.66 | Fog/Mist | CLR | 2.2 | 2.2 | 100% | 75.84 | 1011.3 | |||||||
| 19 | 02:52 | Calm | 8.05 | Fog/Mist | CLR | 2.8 | 2.8 | 100% | 75.82 | 1010.8 | |||||||
| 19 | 01:52 | Calm | 9.66 | Fog/Mist | CLR | 3.3 | 2.8 | 97% | 75.79 | 1010.7 | |||||||
| 19 | 00:52 | Calm | 9.66 | Fog/Mist | CLR | 3.9 | 3.3 | 12.8 | 3.3 | 96% | 75.79 | 1010.4 | |||||
| 18 | 23:52 | N 6 | 12.87 | A Few Clouds | FEW250 | 5.6 | 5 | 96% | 75.74 | 1010.0 | |||||||
| 18 | 22:52 | Calm | 16.09 | Partly Cloudy | SCT050 | 8.3 | 7.2 | 93% | 75.72 | 1009.5 | |||||||
| 18 | 21:52 | Calm | 16.09 | Mostly Cloudy | BKN055 | 8.9 | 7.2 | 89% | 75.67 | 1008.9 | |||||||
| 18 | 20:52 | S 7 | 16.09 | Mostly Cloudy | SCT050 BKN150 | 11.1 | 8.3 | 83% | 75.62 | 1008.3 | |||||||
| 18 | 19:52 | S 11 | 16.09 | Overcast | BKN055 OVC150 | 12.2 | 8.3 | 77% | 75.59 | 1007.8 | |||||||
| 18 | 18:52 | S 15 | 16.09 | Overcast | OVC060 | 12.8 | 7.8 | 13.3 | 9.4 | 72% | 75.59 | 1007.7 | |||||
| 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) | |||||||||||||||