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. | ||||||||||||||||
| 20 | 12:52 | Calm | 16.09 | Overcast | BKN022 OVC055 | 8.9 | 4.4 | 8.9 | 5 | 74% | 76.61 | 1021.4 | |||||
| 20 | 11:52 | Vrbl 6 | 16.09 | Overcast | OVC021 | 7.8 | 3.9 | 77% | 76.71 | 1022.8 | |||||||
| 20 | 10:52 | Calm | 11.27 | Overcast | OVC021 | 7.8 | 3.9 | 77% | 76.78 | 1023.7 | |||||||
| 20 | 09:52 | S 6 | 11.27 | Overcast | BKN017 OVC034 | 6.7 | 3.3 | 79% | 76.81 | 1024.0 | |||||||
| 20 | 08:52 | E 6 | 11.27 | Overcast | OVC015 | 6.1 | 2.8 | 80% | 76.84 | 1024.4 | |||||||
| 20 | 07:52 | Calm | 16.09 | Overcast | OVC014 | 5.6 | 2.8 | 82% | 76.84 | 1024.5 | |||||||
| 20 | 06:52 | Calm | 16.09 | Overcast | OVC015 | 5 | 2.8 | 5.6 | 5 | 86% | 76.81 | 1023.9 | |||||
| 20 | 05:52 | E 6 | 16.09 | Overcast | BKN016 OVC035 | 5 | 2.8 | 86% | 76.78 | 1023.9 | |||||||
| 20 | 04:52 | W 6 | 16.09 | Overcast | OVC018 | 5.6 | 2.8 | 82% | 76.81 | 1024.2 | |||||||
| 20 | 03:52 | Calm | 16.09 | Overcast | OVC024 | 5.6 | 2.8 | 82% | 76.78 | 1023.9 | |||||||
| 20 | 02:52 | Calm | 16.09 | Overcast | FEW015 OVC024 | 5.6 | 2.8 | 82% | 76.81 | 1024.0 | |||||||
| 20 | 01:52 | N 7 | 16.09 | Overcast | OVC025 | 5.6 | 2.8 | 82% | 4 | 76.78 | 1023.8 | ||||||
| 20 | 00:52 | Calm | 16.09 | Overcast | FEW015 OVC025 | 5.6 | 2.8 | 6.7 | 5.6 | 82% | 76.81 | 1024.1 | |||||
| 19 | 23:52 | N 6 | 16.09 | Overcast | FEW015 OVC024 | 6.1 | 2.8 | 80% | 76.81 | 1024.3 | |||||||
| 19 | 22:52 | NE 7 | 16.09 | Overcast | OVC025 | 6.1 | 2.8 | 80% | 5 | 76.86 | 1024.7 | ||||||
| 19 | 21:52 | NE 7 | 16.09 | Overcast | FEW018 OVC028 | 6.1 | 2.8 | 80% | 5 | 76.89 | 1025.1 | ||||||
| 19 | 20:52 | NW 6 | 16.09 | Overcast | SCT018 OVC029 | 6.1 | 2.8 | 80% | 76.86 | 1024.9 | |||||||
| 19 | 19:52 | NW 7 | 16.09 | Mostly Cloudy | BKN018 BKN250 | 5.6 | 2.8 | 82% | 4 | 76.86 | 1024.7 | ||||||
| 19 | 18:52 | N 11 | 16.09 | Overcast | OVC018 | 6.7 | 2.8 | 7.2 | 6.7 | 76% | 5 | 76.81 | 1024.0 | ||||
| 19 | 17:52 | NW 15 | 16.09 | Overcast | OVC018 | 6.7 | 2.8 | 76% | 4 | 76.78 | 1023.7 | ||||||
| 19 | 16:52 | N 15 | 16.09 | Mostly Cloudy | BKN017 BKN250 | 6.7 | 3.3 | 79% | 4 | 76.76 | 1023.3 | ||||||
| 19 | 15:52 | N 11 | 16.09 | Mostly Cloudy | BKN017 BKN250 | 7.2 | 3.3 | 77% | 5 | 76.71 | 1022.8 | ||||||
| 19 | 14:52 | N 17 | 16.09 | Mostly Cloudy | BKN017 BKN250 | 7.2 | 3.3 | 77% | 5 | 76.68 | 1022.3 | ||||||
| 19 | 13:52 | N 13 | 16.09 | Overcast | OVC018 | 7.2 | 3.3 | 77% | 5 | 76.66 | 1022.1 | ||||||
| 19 | 12:52 | N 17 | 16.09 | Overcast | OVC015 | 6.7 | 3.3 | 7.2 | 5.6 | 79% | 4 | 76.66 | 1022.2 | ||||
| 19 | 11:52 | N 17 | 16.09 | Overcast | OVC015 | 6.7 | 3.9 | 83% | 4 | 76.63 | 1021.8 | ||||||
| 19 | 10:52 | N 15 | 16.09 | Mostly Cloudy | SCT010 BKN015 | 6.7 | 3.3 | 79% | 4 | 76.66 | 1022.1 | ||||||
| 19 | 09:52 | N 13 | 16.09 | Overcast | SCT008 BKN014 OVC017 | 6.1 | 4.4 | 89% | 4 | 76.63 | 1021.6 | ||||||
| 19 | 08:52 | N 17 | 9.66 | Fog/Mist | BKN008 OVC015 | 6.1 | 5 | 93% | 3 | 76.53 | 1020.5 | ||||||
| 19 | 07:52 | NW 11 | 9.66 | Fog/Mist | OVC006 | 5.6 | 5 | 96% | 3 | 76.5 | 1020.0 | ||||||
| 19 | 06:52 | NW 13 | 4.83 | Fog/Mist | OVC003 | 5.6 | 5 | 6.1 | 5 | 96% | 3 | 76.43 | 1019.1 | 0.18 | |||
| 19 | 05:52 | NW 11 | 4.83 | Fog/Mist | OVC003 | 5.6 | 5 | 96% | 3 | 76.35 | 1017.9 | ||||||
| 19 | 04:52 | NW 15 | 6.44 | Fog/Mist | OVC004 | 5.6 | 5 | 96% | 3 | 76.3 | 1017.4 | ||||||
| 19 | 03:52 | NW 6 | 6.44 | Fog/Mist | OVC005 | 5.6 | 5.6 | 100% | 76.25 | 1016.6 | 0.18 | ||||||
| 19 | 02:52 | Calm | 9.66 | Light Rain Fog/Mist | OVC006 | 6.1 | 5.6 | 97% | 76.28 | 1017.1 | 0.05 | ||||||
| 19 | 01:52 | E 11 | 9.66 | Light Rain Fog/Mist | BKN006 OVC060 | 5.6 | 5 | 96% | 3 | 76.25 | 1016.6 | 0.13 | |||||
| 19 | 00:52 | SE 7 | 12.87 | Light Rain | OVC060 | 5 | 4.4 | 5.6 | 4.4 | 96% | 4 | 76.38 | 1018.3 | 0.05 | 0.3 | ||
| 18 | 23:52 | E 7 | 9.66 | Light Rain Fog/Mist | OVC065 | 5 | 3.9 | 93% | 4 | 76.48 | 1019.7 | 0.15 | |||||
| 18 | 22:52 | NE 6 | 16.09 | Overcast | OVC070 | 5 | 3.9 | 93% | 76.53 | 1020.3 | |||||||
| 18 | 21:52 | E 7 | 16.09 | Light Rain | OVC050 | 5 | 3.3 | 89% | 4 | 76.53 | 1020.2 | 0.03 | 0.1 | ||||
| 18 | 20:52 | Calm | 16.09 | Light Rain | BKN042 OVC060 | 5 | 3.3 | 89% | 76.58 | 1021.2 | |||||||
| 18 | 19:52 | SE 7 | 16.09 | Overcast | SCT048 BKN070 OVC095 | 4.4 | 3.9 | 97% | 3 | 76.56 | 1020.9 | 0.08 | |||||
| 18 | 18:52 | S 6 | 12.87 | Rain | BKN042 OVC075 | 5 | 3.3 | 9.4 | 4.4 | 89% | 76.61 | 1021.4 | 0.18 | 0.25 | |||
| 18 | 17:52 | SW 7 | 16.09 | Light Rain | OVC045 | 5.6 | 2.2 | 79% | 4 | 76.63 | 1021.8 | 0.08 | |||||
| 18 | 16:52 | S 15 | 16.09 | Overcast | OVC050 | 8.3 | -3.9 | 42% | 6 | 76.58 | 1021.1 | ||||||
| 18 | 15:52 | S 7 | 16.09 | Overcast | OVC055 | 8.9 | -5 | 37% | 8 | 76.58 | 1021.0 | ||||||
| 18 | 14:52 | S 13 | 16.09 | Overcast | OVC060 | 8.9 | -5 | 37% | 7 | 76.61 | 1021.4 | ||||||
| 18 | 13:52 | S 9 | 16.09 | Overcast | BKN070 OVC110 | 8.9 | -4.4 | 39% | 8 | 76.66 | 1022.1 | ||||||
| 18 | 12:52 | S 11 | 16.09 | Overcast | FEW065 SCT085 OVC110 | 8.9 | -5 | 9.4 | -3.3 | 37% | 7 | 76.68 | 1022.4 | ||||
| 18 | 11:52 | SW 13 | 16.09 | Mostly Cloudy | FEW100 SCT140 SCT180 BKN250 | 8.9 | -5.6 | 36% | 7 | 76.73 | 1023.0 | ||||||
| 18 | 10:52 | Vrbl 7 | 16.09 | Mostly Cloudy | FEW065 FEW120 SCT180 BKN250 | 7.8 | -5 | 40% | 7 | 76.81 | 1024.4 | ||||||
| 18 | 09:52 | S 7 | 16.09 | Mostly Cloudy | FEW065 FEW110 SCT180 BKN250 | 5.6 | -5.6 | 45% | 4 | 76.84 | 1024.6 | ||||||
| 18 | 08:52 | Calm | 16.09 | Mostly Cloudy | FEW190 BKN250 | 1.7 | -3.9 | 67% | 76.84 | 1024.5 | |||||||
| 18 | 07:52 | Calm | 16.09 | Mostly Cloudy | FEW110 FEW190 BKN250 | -1.1 | -5.6 | 72% | 76.81 | 1024.3 | |||||||
| 18 | 06:52 | S 6 | 16.09 | Mostly Cloudy | BKN250 | -2.8 | -6.1 | 0 | -4.4 | 78% | 76.76 | 1023.7 | |||||
| 18 | 05:52 | Calm | 16.09 | Fair | CLR | -2.8 | -6.7 | 75% | 76.71 | 1023.0 | |||||||
| 18 | 04:52 | N 6 | 16.09 | Fair | CLR | -2.2 | -6.1 | 75% | 76.68 | 1022.5 | |||||||
| 18 | 03:52 | Calm | 16.09 | Fair | CLR | -2.8 | -6.7 | 75% | 76.66 | 1022.2 | |||||||
| 18 | 02:52 | NW 7 | 16.09 | Fair | CLR | -2.2 | -6.7 | 72% | -5 | 76.63 | 1021.8 | ||||||
| 18 | 01:52 | NW 6 | 16.09 | Fair | CLR | -1.1 | -6.7 | 66% | 76.61 | 1021.3 | |||||||
| 18 | 00:52 | Calm | 16.09 | Fair | CLR | 0 | -6.7 | 6.1 | -1.1 | 61% | 76.58 | 1020.9 | |||||
| 17 | 23:52 | NW 6 | 16.09 | Fair | CLR | 1.7 | -6.7 | 54% | 76.56 | 1020.6 | |||||||
| 17 | 22:52 | NW 9 | 16.09 | Fair | CLR | 0.6 | -6.7 | 58% | -2 | 76.5 | 1020.2 | ||||||
| 17 | 21:52 | SW 6 | 16.09 | Fair | CLR | -0.6 | -6.1 | 67% | 76.48 | 1019.8 | |||||||
| 17 | 20:52 | NW 7 | 16.09 | Fair | CLR | 4.4 | -6.7 | 45% | 3 | 76.43 | 1019.0 | ||||||
| 17 | 19:52 | NW 9 | 16.09 | Fair | CLR | 5 | -7.2 | 41% | 3 | 76.38 | 1018.4 | ||||||
| 17 | 18:52 | NW 9 | 16.09 | Fair | CLR | 6.1 | -7.2 | 10.6 | 5.6 | 38% | 4 | 76.3 | 1017.5 | ||||
| 17 | 17:52 | NW 11 | 16.09 | Fair | CLR | 6.1 | -7.2 | 38% | 4 | 76.25 | 1016.5 | ||||||
| 17 | 16:52 | NW 13 | 16.09 | A Few Clouds | FEW080 | 8.3 | -7.8 | 31% | 6 | 76.17 | 1015.7 | ||||||
| 17 | 15:52 | NW 19 G 39 | 16.09 | A Few Clouds | FEW080 | 9.4 | -8.3 | 28% | 7 | 76.12 | 1014.9 | ||||||
| 17 | 14:52 | NW 30 G 41 | 16.09 | A Few Clouds | FEW080 | 10 | -7.8 | 28% | 7 | 76.05 | 1014.0 | ||||||
| 17 | 13:52 | NW 30 G 46 | 16.09 | A Few Clouds | FEW060 | 10.6 | -7.8 | 27% | 76.02 | 1013.5 | |||||||
| 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) | |||||||||||||||