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 | 14:52 | NW 11 | 16.09 | Mostly Cloudy | FEW038 BKN250 | 1.1 | -10 | 44% | -2 | 76.68 | 1022.5 | ||||||
| 04 | 13:52 | N 11 | 16.09 | Mostly Cloudy | FEW038 BKN250 | 1.7 | -10 | 42% | -1 | 76.71 | 1023.0 | ||||||
| 04 | 12:52 | N 13 G 28 | 16.09 | Mostly Cloudy | FEW038 BKN250 | 1.1 | -9.4 | 1.7 | -1.1 | 46% | -2 | 76.76 | 1023.7 | ||||
| 04 | 11:52 | N 15 | 16.09 | Mostly Cloudy | FEW038 BKN250 | 1.1 | -8.3 | 50% | -3 | 76.84 | 1024.6 | ||||||
| 04 | 10:52 | NW 13 | 16.09 | A Few Clouds | FEW038 | 0.6 | -8.9 | 49% | -3 | 76.89 | 1025.2 | ||||||
| 04 | 09:52 | N 19 | 16.09 | Mostly Cloudy | BKN039 | 0 | -8.3 | 54% | -5 | 76.86 | 1025.1 | ||||||
| 04 | 08:52 | N 15 | 16.09 | A Few Clouds | FEW150 | 0 | -7.8 | 56% | -4 | 76.86 | 1024.9 | ||||||
| 04 | 07:52 | N 17 | 16.09 | Mostly Cloudy | SCT045 BKN180 | -0.6 | -6.7 | 64% | -5 | 76.76 | 1023.7 | ||||||
| 04 | 06:52 | N 11 | 16.09 | Mostly Cloudy | SCT027 BKN034 | 0 | -5.6 | 0 | 0 | 66% | -3 | 76.76 | 1023.4 | ||||
| 04 | 05:52 | N 7 | 16.09 | Overcast | BKN027 OVC034 | 0 | -5.6 | 66% | -2 | 76.71 | 1022.8 | ||||||
| 04 | 04:52 | N 15 | 16.09 | Overcast | OVC030 | 0 | -6.1 | 64% | -4 | 76.66 | 1022.3 | ||||||
| 04 | 03:52 | N 15 | 16.09 | Overcast | OVC039 | 0 | -6.1 | 64% | -4 | 76.63 | 1021.8 | ||||||
| 04 | 02:52 | N 13 | 16.09 | Overcast | OVC041 | 0 | -6.1 | 64% | -4 | 76.61 | 1021.5 | ||||||
| 04 | 01:52 | N 11 | 16.09 | Overcast | OVC044 | 0 | -5.6 | 66% | -3 | 76.58 | 1021.1 | ||||||
| 04 | 00:52 | N 11 | 16.09 | Overcast | OVC055 | 0 | -5.6 | 1.7 | -1.1 | 66% | -3 | 76.58 | 1021.2 | ||||
| 03 | 23:52 | NE 7 | 16.09 | Overcast | OVC050 | 0.6 | -5 | 66% | -1 | 76.58 | 1021.2 | ||||||
| 03 | 22:52 | NE 6 | 16.09 | Overcast | OVC055 | 1.1 | -5.6 | 61% | 76.58 | 1021.1 | |||||||
| 03 | 21:52 | E 6 | 16.09 | Overcast | OVC050 | 0.6 | -5.6 | 64% | 76.58 | 1021.3 | |||||||
| 03 | 20:52 | Calm | 16.09 | Overcast | OVC055 | -0.6 | -5 | 72% | 76.58 | 1021.1 | |||||||
| 03 | 19:52 | Calm | 16.09 | Mostly Cloudy | BKN050 BKN140 | 0 | -6.1 | 64% | 76.56 | 1021.0 | |||||||
| 03 | 18:52 | Calm | 16.09 | A Few Clouds | FEW100 FEW250 | 1.7 | -6.7 | 4.4 | 1.7 | 54% | 76.56 | 1020.9 | |||||
| 03 | 17:52 | SE 7 | 16.09 | Partly Cloudy | FEW100 SCT250 | 2.8 | -6.7 | 50% | 1 | 76.56 | 1021.0 | ||||||
| 03 | 16:52 | Calm | 16.09 | Mostly Cloudy | SCT100 BKN250 | 4.4 | -7.2 | 43% | 76.56 | 1020.9 | |||||||
| 03 | 15:52 | S 15 | 16.09 | Overcast | BKN100 OVC200 | 4.4 | -6.7 | 45% | 1 | 76.56 | 1021.0 | ||||||
| 03 | 14:52 | Vrbl 6 | 16.09 | Mostly Cloudy | FEW033 BKN120 BKN200 | 3.9 | -6.7 | 46% | 76.56 | 1021.0 | |||||||
| 03 | 13:52 | Vrbl 6 | 16.09 | Partly Cloudy | FEW050 SCT250 | 3.9 | -6.7 | 46% | 76.58 | 1021.3 | |||||||
| 03 | 12:52 | Calm | 16.09 | Partly Cloudy | FEW050 SCT250 | 3.3 | -6.7 | 3.3 | -4.4 | 48% | 76.63 | 1021.8 | |||||
| 03 | 11:52 | Vrbl 6 | 16.09 | A Few Clouds | FEW250 | 2.8 | -6.7 | 50% | 76.71 | 1023.0 | |||||||
| 03 | 10:52 | Calm | 16.09 | Mostly Cloudy | BKN050 BKN250 | 1.7 | -6.1 | 57% | 76.78 | 1024.0 | |||||||
| 03 | 09:52 | Calm | 16.09 | Mostly Cloudy | BKN050 BKN250 | 1.1 | -7.2 | 54% | 76.81 | 1024.2 | |||||||
| 03 | 08:52 | Calm | 16.09 | Mostly Cloudy | BKN050 BKN250 | -2.2 | -8.3 | 63% | 76.78 | 1023.9 | |||||||
| 03 | 07:52 | Calm | 16.09 | Mostly Cloudy | BKN055 | -4.4 | -8.9 | 71% | 76.73 | 1023.5 | |||||||
| 03 | 06:52 | Calm | 16.09 | Overcast | OVC055 | -3.9 | -9.4 | -2.2 | -5 | 66% | 76.71 | 1022.9 | |||||
| 03 | 05:52 | Calm | 16.09 | Overcast | OVC050 | -3.9 | -10 | 63% | 76.68 | 1022.6 | |||||||
| 03 | 04:52 | NW 7 | 16.09 | Overcast | OVC050 | -4.4 | -9.4 | 68% | -7 | 76.68 | 1022.6 | ||||||
| 03 | 03:52 | NW 11 | 16.09 | Mostly Cloudy | BKN055 | -3.9 | -10 | 63% | -8 | 76.66 | 1022.3 | ||||||
| 03 | 02:52 | SE 7 | 16.09 | Overcast | OVC050 | -3.9 | -9.4 | 66% | -7 | 76.63 | 1022.0 | ||||||
| 03 | 01:52 | Calm | 16.09 | Overcast | OVC050 | -3.9 | -10 | 63% | 76.66 | 1022.1 | |||||||
| 03 | 00:52 | SE 6 | 16.09 | Overcast | OVC050 | -5 | -10 | -3.3 | -6.1 | 68% | 76.63 | 1022.0 | |||||
| 02 | 23:52 | Calm | 16.09 | Overcast | OVC055 | -3.9 | -10.6 | 60% | 76.66 | 1022.3 | |||||||
| 02 | 22:52 | Calm | 16.09 | Overcast | OVC060 | -3.9 | -11.1 | 58% | 76.63 | 1022.1 | |||||||
| 02 | 21:52 | Calm | 16.09 | Mostly Cloudy | BKN070 BKN090 | -4.4 | -11.1 | 60% | 76.63 | 1022.1 | |||||||
| 02 | 20:52 | Calm | 16.09 | Mostly Cloudy | BKN090 BKN120 | -4.4 | -11.1 | 60% | 76.63 | 1022.0 | |||||||
| 02 | 19:52 | Calm | 16.09 | Partly Cloudy | FEW080 SCT100 | -5 | -12.8 | 55% | 76.63 | 1022.0 | |||||||
| 02 | 18:52 | Calm | 16.09 | A Few Clouds | FEW120 | -3.3 | -12.8 | 1.1 | -3.3 | 48% | 76.63 | 1021.9 | |||||
| 02 | 17:52 | NW 9 | 16.09 | A Few Clouds | FEW120 | 0 | -12.8 | 38% | -3 | 76.61 | 1021.9 | ||||||
| 02 | 16:52 | NW 7 | 16.09 | A Few Clouds | FEW120 FEW250 | 1.1 | -12.8 | 35% | -1 | 76.58 | 1021.1 | ||||||
| 02 | 15:52 | NW 13 | 16.09 | A Few Clouds | FEW250 | 1.1 | -12.8 | 35% | -2 | 76.56 | 1021.0 | ||||||
| 02 | 14:52 | W 7 | 16.09 | Fair | CLR | 0.6 | -13.3 | 35% | -1 | 76.58 | 1021.2 | ||||||
| 02 | 13:52 | NW 15 | 16.09 | Fair | CLR | 0 | -13.9 | 35% | -4 | 76.58 | 1021.2 | ||||||
| 02 | 12:52 | W 24 G 35 | 16.09 | Fair | CLR | -1.1 | -13.9 | -1.1 | -8.3 | 38% | -7 | 76.63 | 1022.2 | ||||
| 02 | 11:52 | NW 24 G 39 | 16.09 | Fair | CLR | -2.2 | -13.9 | 41% | -8 | 76.73 | 1023.2 | ||||||
| 02 | 10:52 | N 19 | 16.09 | Fair | CLR | -2.8 | -13.3 | 45% | -8 | 76.76 | 1023.8 | ||||||
| 02 | 09:52 | NW 17 G 39 | 16.09 | Fair | CLR | -4.4 | -13.9 | 48% | -10 | 76.76 | 1023.9 | ||||||
| 02 | 08:52 | NW 24 G 33 | 16.09 | Fair | CLR | -5.6 | -13.9 | 52% | -12 | 76.71 | 1022.9 | ||||||
| 02 | 07:52 | NW 17 | 16.09 | Fair | CLR | -7.2 | -13.9 | 59% | -13 | 76.68 | 1022.7 | ||||||
| 02 | 06:52 | NW 17 | 16.09 | Fair | CLR | -7.8 | -14.4 | -5.6 | -7.8 | 59% | -14 | 76.66 | 1022.3 | ||||
| 02 | 05:52 | NW 20 | 16.09 | Fair | CLR | -7.2 | -15 | 54% | -14 | 76.63 | 1021.9 | ||||||
| 02 | 04:52 | NW 11 | 16.09 | Fair | CLR | -7.2 | -15 | 54% | -12 | 76.61 | 1021.7 | ||||||
| 02 | 03:52 | NW 19 | 16.09 | Fair | CLR | -7.2 | -15 | 54% | -14 | 76.56 | 1020.9 | ||||||
| 02 | 02:52 | NW 28 G 41 | 16.09 | Fair | CLR | -6.7 | -16.1 | 48% | -14 | 76.5 | 1020.4 | ||||||
| 02 | 01:52 | NW 26 G 39 | 16.09 | Fair | CLR | -6.1 | -16.7 | 43% | -13 | 76.48 | 1020.1 | ||||||
| 02 | 00:52 | NW 19 G 41 | 16.09 | Fair | CLR | -5.6 | -17.8 | -4.4 | -6.1 | 38% | -12 | 76.43 | 1019.4 | ||||
| 01 | 23:52 | NW 15 | 16.09 | Fair | CLR | -5.6 | -17.8 | 38% | -11 | 76.4 | 1018.9 | ||||||
| 01 | 22:52 | NW 28 G 46 | 16.09 | Fair | CLR | -5 | -17.8 | 36% | -12 | 76.33 | 1018.1 | ||||||
| 01 | 21:52 | NW 24 G 43 | 16.09 | Fair | CLR | -5 | -17.2 | 38% | -12 | 76.3 | 1017.5 | ||||||
| 01 | 20:52 | NW 31 G 50 | 16.09 | Fair | CLR | -5 | -16.7 | 40% | -13 | 76.25 | 1017.1 | ||||||
| 01 | 19:52 | NW 31 G 48 | 16.09 | A Few Clouds | FEW250 | -5 | -16.1 | 42% | -13 | 76.23 | 1016.8 | ||||||
| 01 | 18:52 | NW 26 G 43 | 16.09 | A Few Clouds | FEW250 | -4.4 | -15.6 | -2.8 | -5.6 | 42% | -11 | 76.2 | 1016.5 | ||||
| 01 | 17:52 | NW 26 G 43 | 16.09 | A Few Clouds | FEW250 | -3.9 | -15 | 42% | -11 | 76.17 | 1016.1 | ||||||
| 01 | 16:52 | NW 30 G 52 | 16.09 | A Few Clouds | FEW250 | -3.3 | -15.6 | 38% | -10 | 76.12 | 1015.2 | ||||||
| 01 | 15:52 | NW 28 G 48 | 16.09 | A Few Clouds | FEW250 | -2.8 | -16.1 | 35% | -9 | 76.1 | 1014.8 | ||||||
| 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) | |||||||||||||||