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. | ||||||||||||||||
| 04 | 03:52 | S 9 | 4.83 | Fog/Mist | OVC070 | 6.7 | 6.1 | 96% | 5 | 76.73 | 1023.1 | ||||||
| 04 | 02:52 | Calm | 4.83 | Fog/Mist | OVC060 | 6.7 | 6.1 | 96% | 76.76 | 1023.3 | |||||||
| 04 | 01:52 | SW 7 | 4.83 | Fog/Mist | OVC009 | 6.7 | 6.1 | 96% | 6 | 76.78 | 1023.8 | ||||||
| 04 | 00:52 | S 9 | 4.83 | Fog/Mist | OVC007 | 6.7 | 5.6 | 6.7 | 3.9 | 93% | 5 | 76.76 | 1023.5 | 0.33 | |||
| 03 | 23:52 | S 17 | 4.83 | Light Rain | OVC005 | 6.1 | 5.6 | 97% | 3 | 76.76 | 1023.6 | 0.03 | |||||
| 03 | 22:52 | S 15 | 4.83 | Overcast | OVC004 | 5.6 | 5 | 96% | 3 | 76.78 | 1024.0 | ||||||
| 03 | 21:52 | S 13 | 2.41 | Fog/Mist | OVC003 | 5 | 4.4 | 96% | 2 | 76.78 | 1023.7 | 0.03 | 0.3 | ||||
| 03 | 20:52 | S 15 | 2.41 | Light Rain Fog/Mist | OVC003 | 4.4 | 3.9 | 97% | 1 | 76.84 | 1024.5 | 0.08 | |||||
| 03 | 19:52 | S 9 | 2.41 | Light Rain Fog/Mist | BKN004 OVC041 | 3.9 | 3.9 | 100% | 2 | 76.86 | 1024.9 | 0.2 | |||||
| 03 | 18:52 | S 11 | 2.41 | Light Rain Fog/Mist | OVC004 | 3.9 | 3.3 | 3.9 | 1.7 | 96% | 1 | 76.94 | 1025.9 | 0.2 | 0.41 | ||
| 03 | 17:52 | Calm | 2.41 | Light Rain Fog/Mist | OVC004 | 3.9 | 3.3 | 96% | 76.96 | 1026.2 | 0.15 | ||||||
| 03 | 16:52 | S 11 | 2.41 | Light Rain Fog/Mist | OVC004 | 3.9 | 3.3 | 96% | 1 | 76.96 | 1026.1 | 0.05 | |||||
| 03 | 15:52 | S 11 | 2.41 | Overcast | OVC005 | 3.9 | 2.8 | 93% | 1 | 77.01 | 1026.8 | ||||||
| 03 | 14:52 | S 9 | 2.41 | Fog/Mist | OVC004 | 2.8 | 2.2 | 96% | 1 | 77.04 | 1027.2 | ||||||
| 03 | 13:52 | S 9 | 2.41 | Fog/Mist | BKN004 OVC013 | 2.2 | 1.7 | 97% | -0 | 77.11 | 1028.3 | ||||||
| 03 | 12:52 | S 7 | 2.41 | Fog/Mist | BKN004 OVC012 | 1.7 | 1.1 | 1.7 | 0 | 96% | -0 | 77.24 | 1030.0 | 0.03 | |||
| 03 | 11:52 | SE 6 | 0.80 | Fog/Mist | BKN004 OVC010 | 1.1 | 0.6 | 97% | 77.34 | 1031.4 | 0.03 | ||||||
| 03 | 10:52 | Calm | 0.40 | Light Rain Fog/Mist | OVC004 | 0.6 | 0 | 96% | 77.39 | 1032.0 | |||||||
| 03 | 09:52 | Calm | 0.40 | Light Rain Fog/Mist | OVC003 | 0 | 0 | 100% | 77.44 | 1032.9 | |||||||
| 03 | 08:52 | SW 6 | 0.80 | Fog/Mist | OVC003 | 0 | -0.6 | 96% | 77.5 | 1033.4 | |||||||
| 03 | 06:52 | Calm | 8.05 | Light Freezing Drizzle Fog/Mist | OVC005 | 0 | -0.6 | 0 | -0.6 | 96% | 77.47 | 1033.1 | 0.05 | 0.23 | |||
| 03 | 05:52 | Calm | 8.05 | Light Rain Fog/Mist | OVC008 | 0 | -1.1 | 92% | 77.47 | 1033.1 | 0.03 | ||||||
| 03 | 04:52 | SE 6 | 11.27 | Light Rain Fog/Mist | FEW008 OVC011 | 0 | -1.1 | 92% | 77.5 | 1033.4 | 0.05 | ||||||
| 03 | 03:52 | Calm | 11.27 | Light Rain | FEW008 OVC015 | 0 | -1.1 | 92% | 77.55 | 1034.2 | 0.03 | 0.1 | |||||
| 03 | 02:52 | SE 7 | 11.27 | Light Rain | BKN010 OVC023 | 0 | -1.1 | 92% | -2 | 77.55 | 1034.3 | 0.03 | |||||
| 03 | 01:52 | SE 6 | 8.05 | Light Rain Fog/Mist | OVC007 | -0.6 | -1.7 | 92% | 77.62 | 1035.1 | 0.05 | ||||||
| 03 | 00:52 | SE 6 | 8.05 | Light Rain Fog/Mist | SCT007 OVC028 | -0.6 | -1.1 | -0.6 | -1.1 | 96% | 77.65 | 1035.4 | |||||
| 02 | 23:52 | Calm | 8.05 | Fog/Mist | OVC007 | -0.6 | -1.7 | 92% | 77.65 | 1035.6 | |||||||
| 02 | 22:52 | S 7 | 9.66 | Light Drizzle Fog/Mist | OVC010 | -0.6 | -1.7 | 92% | -3 | 77.67 | 1035.9 | ||||||
| 02 | 21:52 | SE 7 | 11.27 | Overcast | OVC009 | -0.6 | -2.2 | 89% | -3 | 77.7 | 1036.2 | ||||||
| 02 | 20:52 | SE 6 | 11.27 | Overcast | FEW007 BKN012 OVC031 | -1.1 | -2.2 | 92% | 77.72 | 1036.5 | |||||||
| 02 | 19:52 | SE 6 | 11.27 | Overcast | BKN010 OVC035 | -1.1 | -2.2 | 92% | 77.72 | 1036.4 | |||||||
| 02 | 18:52 | Calm | 4.02 | Light Snow Fog/Mist | BKN009 BKN015 OVC046 | -1.1 | -2.2 | 0.6 | -1.1 | 92% | 77.72 | 1036.4 | 0.03 | 0.13 | |||
| 02 | 17:52 | E 9 | 4.83 | Light Snow Fog/Mist | FEW009 BKN017 OVC037 | -1.1 | -2.8 | 88% | -4 | 77.67 | 1036.0 | 0.03 | |||||
| 02 | 16:52 | SE 7 | 3.22 | Light Snow Fog/Mist | BKN018 OVC037 | -1.1 | -2.8 | 88% | -3 | 77.67 | 1035.8 | 0.05 | |||||
| 02 | 15:52 | SE 7 | 2.41 | Light Snow Fog/Mist | BKN023 OVC037 | -1.1 | -2.8 | 88% | -3 | 77.67 | 1035.9 | 0.03 | 0.03 | ||||
| 02 | 14:52 | E 11 | 14.48 | Light Snow | BKN050 OVC065 | 0 | -5.6 | 66% | -3 | 77.7 | 1036.1 | ||||||
| 02 | 13:52 | NE 17 | 6.44 | Light Snow | FEW008 SCT029 OVC036 | -0.6 | -3.3 | 82% | -5 | 77.7 | 1036.1 | ||||||
| 02 | 12:52 | NE 13 | 14.48 | Light Snow | BKN045 BKN055 OVC100 | -1.1 | -4.4 | 0.6 | -1.7 | 79% | -5 | 77.72 | 1036.5 | ||||
| 02 | 11:52 | NE 9 | 16.09 | Light Snow | BKN045 BKN055 OVC090 | 0.6 | -8.9 | 49% | -2 | 77.77 | 1037.2 | ||||||
| 02 | 10:52 | E 7 | 16.09 | Overcast | SCT060 BKN080 OVC095 | 0 | -9.4 | 50% | -2 | 77.77 | 1037.3 | ||||||
| 02 | 09:52 | E 9 | 16.09 | Overcast | SCT060 OVC110 | 0 | -10 | 47% | -3 | 77.8 | 1037.3 | ||||||
| 02 | 08:52 | NE 11 | 16.09 | Mostly Cloudy | BKN110 BKN160 | -0.6 | -10 | 49% | -4 | 77.72 | 1036.5 | ||||||
| 02 | 07:52 | NE 11 | 16.09 | Mostly Cloudy | FEW055 FEW100 BKN150 | -0.6 | -10 | 49% | -4 | 77.72 | 1036.3 | ||||||
| 02 | 06:52 | NE 9 | 16.09 | Partly Cloudy | FEW055 SCT110 SCT250 | -1.7 | -10 | 1.7 | -2.2 | 54% | -5 | 77.62 | 1035.2 | ||||
| 02 | 05:52 | NE 9 | 16.09 | Partly Cloudy | SCT055 | -1.7 | -10 | 54% | -5 | 77.57 | 1034.4 | ||||||
| 02 | 04:52 | NE 11 | 16.09 | Mostly Cloudy | BKN055 | -1.1 | -10.6 | 49% | -5 | 77.57 | 1034.2 | ||||||
| 02 | 03:52 | N 11 | 16.09 | A Few Clouds | FEW150 | -0.6 | -10.6 | 47% | -4 | 77.5 | 1033.2 | ||||||
| 02 | 02:52 | N 15 | 16.09 | Fair | CLR | 0.6 | -10.6 | 43% | -3 | 77.44 | 1032.4 | ||||||
| 02 | 01:52 | N 13 | 16.09 | Partly Cloudy | SCT250 | 1.1 | -10 | 44% | -2 | 77.44 | 1032.4 | ||||||
| 02 | 00:52 | NE 15 | 16.09 | Mostly Cloudy | BKN250 | 1.7 | -9.4 | 6.7 | 0 | 44% | -2 | 77.37 | 1031.5 | ||||
| 01 | 23:52 | N 9 | 16.09 | A Few Clouds | FEW250 | 2.8 | -7.2 | 48% | 1 | 77.32 | 1030.8 | ||||||
| 01 | 22:52 | NE 9 | 16.09 | A Few Clouds | FEW250 | 3.3 | -7.8 | 44% | 1 | 77.27 | 1030.2 | ||||||
| 01 | 21:52 | NE 7 | 16.09 | A Few Clouds | FEW250 | 3.3 | -6.7 | 48% | 2 | 77.24 | 1029.8 | ||||||
| 01 | 20:52 | NE 11 | 16.09 | A Few Clouds | FEW250 | 3.9 | -5 | 53% | 1 | 77.19 | 1029.1 | ||||||
| 01 | 19:52 | NE 13 | 16.09 | Mostly Cloudy | BKN250 | 5 | -4.4 | 51% | 2 | 77.09 | 1028.0 | ||||||
| 01 | 18:52 | NE 19 | 16.09 | Mostly Cloudy | FEW060 BKN250 | 6.7 | -3.9 | 12.2 | 6.7 | 47% | 4 | 77.04 | 1027.1 | ||||
| 01 | 17:52 | NE 20 | 16.09 | Mostly Cloudy | FEW060 BKN250 | 7.8 | -2.8 | 47% | 5 | 76.91 | 1025.5 | ||||||
| 01 | 16:52 | NE 15 | 16.09 | A Few Clouds | FEW080 FEW250 | 10 | -2.2 | 43% | 8 | 76.84 | 1024.3 | ||||||
| 01 | 15:52 | NE 24 G 35 | 16.09 | A Few Clouds | FEW080 | 10.6 | -1.7 | 43% | 76.76 | 1023.4 | |||||||
| 01 | 14:52 | N 24 G 39 | 16.09 | A Few Clouds | FEW080 | 11.7 | -0.6 | 43% | 76.71 | 1022.6 | |||||||
| 01 | 13:52 | N 17 | 16.09 | A Few Clouds | FEW060 FEW080 | 12.2 | 0 | 43% | 76.68 | 1022.3 | |||||||
| 01 | 12:52 | N 19 G 33 | 16.09 | A Few Clouds | FEW050 FEW070 | 11.7 | 0 | 12.2 | 6.7 | 45% | 76.68 | 1022.2 | |||||
| 01 | 11:52 | N 20 | 16.09 | A Few Clouds | FEW050 | 10.6 | 0 | 48% | 76.71 | 1022.6 | |||||||
| 01 | 10:52 | N 17 | 16.09 | A Few Clouds | FEW050 FEW070 | 10 | 0.6 | 52% | 8 | 76.71 | 1022.7 | ||||||
| 01 | 09:52 | N 28 G 39 | 16.09 | A Few Clouds | FEW040 FEW070 | 8.3 | -0.6 | 54% | 5 | 76.66 | 1022.1 | ||||||
| 01 | 08:52 | N 19 | 16.09 | A Few Clouds | FEW030 FEW160 | 7.8 | 0 | 58% | 5 | 76.56 | 1020.8 | ||||||
| 01 | 07:52 | N 19 | 16.09 | Partly Cloudy | SCT160 SCT250 | 6.7 | 0.6 | 65% | 4 | 76.45 | 1019.3 | ||||||
| 01 | 06:52 | N 20 | 16.09 | Mostly Cloudy | FEW070 BKN150 BKN250 | 7.2 | 2.2 | 8.3 | 2.8 | 71% | 4 | 76.35 | 1017.8 | ||||
| 01 | 05:52 | NW 6 | 16.09 | Overcast | FEW080 BKN100 OVC110 | 6.1 | 3.3 | 82% | 76.3 | 1017.3 | |||||||
| 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) | |||||||||||||||