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. | ||||||||||||||||
| 09 | 02:52 | NW 9 | 16.09 | Fair | CLR | -8.9 | -17.8 | 49% | -13 | 77.14 | 1028.8 | ||||||
| 09 | 01:52 | NW 13 | 16.09 | Fair | CLR | -8.9 | -17.8 | 49% | -14 | 77.14 | 1028.7 | ||||||
| 09 | 00:52 | NW 19 | 16.09 | Fair | CLR | -8.3 | -17.8 | -6.1 | -8.3 | 47% | -15 | 77.14 | 1028.7 | ||||
| 08 | 23:52 | N 17 | 16.09 | Fair | CLR | -7.8 | -17.8 | 45% | -14 | 77.17 | 1029.1 | ||||||
| 08 | 22:52 | NW 15 | 16.09 | Fair | CLR | -7.8 | -17.8 | 45% | -13 | 77.19 | 1029.5 | ||||||
| 08 | 21:52 | NW 15 | 16.09 | Fair | CLR | -7.2 | -17.8 | 43% | -13 | 77.19 | 1029.4 | ||||||
| 08 | 20:52 | NW 11 | 16.09 | Fair | CLR | -7.2 | -17.8 | 43% | -12 | 77.17 | 1029.4 | ||||||
| 08 | 19:52 | N 13 | 16.09 | Fair | CLR | -6.7 | -17.8 | 41% | -12 | 77.14 | 1028.8 | ||||||
| 08 | 18:52 | N 13 | 16.09 | Fair | CLR | -6.1 | -17.8 | -3.9 | -6.1 | 39% | -11 | 77.11 | 1028.6 | ||||
| 08 | 17:52 | N 22 G 37 | 16.09 | A Few Clouds | FEW050 | -5.6 | -17.8 | 38% | -12 | 77.04 | 1027.7 | ||||||
| 08 | 16:52 | N 26 G 46 | 16.09 | Fair | CLR | -4.4 | -17.8 | 35% | -11 | 76.99 | 1027.0 | ||||||
| 08 | 15:52 | N 30 G 43 | 16.09 | A Few Clouds | FEW045 | -4.4 | -16.7 | 38% | -12 | 76.99 | 1026.8 | ||||||
| 08 | 14:52 | NW 28 G 48 | 16.09 | A Few Clouds | FEW045 | -3.9 | -17.2 | 35% | -11 | 76.96 | 1026.4 | ||||||
| 08 | 13:52 | NW 26 G 46 | 16.09 | A Few Clouds | FEW045 FEW250 | -4.4 | -17.2 | 36% | -11 | 76.94 | 1026.2 | ||||||
| 08 | 12:52 | NW 30 G 46 | 16.09 | A Few Clouds | FEW040 FEW250 | -5.6 | -17.2 | -5 | -11.7 | 40% | -13 | 76.96 | 1026.6 | ||||
| 08 | 11:52 | NW 24 G 48 | 16.09 | A Few Clouds | FEW040 FEW250 | -6.1 | -17.2 | 41% | -13 | 77.04 | 1027.4 | ||||||
| 08 | 10:52 | NW 33 G 43 | 16.09 | A Few Clouds and Breezy | FEW040 FEW250 | -7.2 | -18.3 | 41% | -16 | 77.06 | 1027.7 | ||||||
| 08 | 09:52 | NW 26 G 39 | 16.09 | A Few Clouds | FEW040 FEW250 | -8.3 | -18.3 | 45% | -16 | 77.09 | 1028.1 | ||||||
| 08 | 08:52 | NW 19 | 16.09 | A Few Clouds | FEW040 FEW250 | -9.4 | -18.9 | 46% | -16 | 77.09 | 1028.4 | ||||||
| 08 | 06:52 | W 13 | 16.09 | A Few Clouds | FEW040 | -11.7 | -19.4 | -9.4 | -11.7 | 53% | -18 | 77.04 | 1027.5 | ||||
| 08 | 05:52 | NW 17 | 16.09 | Fair | CLR | -11.1 | -19.4 | 51% | -18 | 76.99 | 1026.9 | ||||||
| 08 | 04:52 | NW 20 | 16.09 | Fair | CLR | -11.1 | -19.4 | 51% | -19 | 76.91 | 1026.0 | ||||||
| 08 | 03:52 | NW 19 G 31 | 16.09 | Fair | CLR | -10.6 | -19.4 | 49% | -18 | 76.86 | 1025.2 | ||||||
| 08 | 02:52 | NW 22 G 41 | 16.09 | Fair | CLR | -10.6 | -19.4 | 49% | -18 | 76.84 | 1024.9 | ||||||
| 08 | 01:52 | NW 22 G 52 | 16.09 | Fair | CLR | -10 | -18.9 | 49% | -18 | 76.84 | 1024.8 | ||||||
| 08 | 00:52 | NW 35 G 57 | 16.09 | Fair and Breezy | CLR | -9.4 | -18.9 | -7.8 | -9.4 | 46% | -19 | 76.78 | 1024.2 | ||||
| 07 | 23:52 | NW 31 G 56 | 16.09 | Fair | CLR | -9.4 | -18.3 | 49% | -18 | 76.78 | 1024.0 | ||||||
| 07 | 22:52 | NW 39 G 56 | 16.09 | A Few Clouds and Breezy | FEW050 | -8.9 | -18.9 | 45% | -19 | 76.71 | 1023.3 | ||||||
| 07 | 21:52 | NW 31 G 48 | 16.09 | A Few Clouds | FEW050 | -8.3 | -19.4 | 41% | -17 | 76.73 | 1023.5 | ||||||
| 07 | 20:52 | NW 26 G 43 | 16.09 | Fair | CLR | -8.3 | -19.4 | 41% | -16 | 76.68 | 1022.9 | ||||||
| 07 | 19:52 | NW 30 G 54 | 16.09 | Fair | CLR | -8.3 | -18.9 | 43% | -17 | 76.63 | 1022.2 | ||||||
| 07 | 18:52 | NW 33 G 61 | 16.09 | A Few Clouds and Breezy | FEW055 | -7.8 | -18.9 | -6.1 | -7.8 | 41% | -16 | 76.56 | 1021.1 | ||||
| 07 | 17:52 | NW 44 G 67 | 16.09 | A Few Clouds and Windy | FEW060 | -7.8 | -19.4 | 39% | -18 | 76.48 | 1020.1 | ||||||
| 07 | 16:52 | NW 43 G 65 | 16.09 | A Few Clouds and Windy | FEW050 | -6.7 | -18.9 | 38% | -16 | 76.43 | 1019.3 | ||||||
| 07 | 15:52 | NW 31 G 63 | 16.09 | A Few Clouds | FEW050 | -6.7 | -19.4 | 36% | -15 | 76.35 | 1018.4 | ||||||
| 07 | 14:52 | NW 35 G 67 | 16.09 | Fair and Breezy | CLR | -6.7 | -18.3 | 40% | -15 | 76.28 | 1017.4 | ||||||
| 07 | 13:52 | NW 48 G 72 | 16.09 | A Few Clouds and Windy | FEW055 | -7.2 | -18.3 | 41% | -17 | 76.23 | 1016.5 | ||||||
| 07 | 12:52 | NW 52 G 80 | 16.09 | A Few Clouds and Windy | FEW055 | -7.2 | -19.4 | -7.2 | -8.3 | 37% | -17 | 76.2 | 1016.4 | ||||
| 07 | 11:52 | NW 48 G 67 | 16.09 | A Few Clouds and Windy | FEW055 | -7.8 | -18.3 | 43% | -18 | 76.25 | 1017.1 | ||||||
| 07 | 10:52 | NW 39 G 63 | 16.09 | A Few Clouds and Breezy | FEW055 | -7.8 | -19.4 | 39% | -17 | 76.25 | 1016.9 | ||||||
| 07 | 09:52 | NW 41 G 67 | 16.09 | A Few Clouds and Breezy | FEW050 | -7.8 | -18.3 | 43% | -17 | 76.2 | 1016.3 | ||||||
| 07 | 08:52 | NW 44 G 74 | 16.09 | A Few Clouds and Windy | FEW050 | -7.8 | -18.9 | 41% | -18 | 76.07 | 1014.7 | ||||||
| 07 | 07:52 | NW 39 G 65 | 16.09 | A Few Clouds and Breezy | FEW055 | -8.3 | -17.8 | 47% | -18 | 76 | 1013.4 | ||||||
| 07 | 06:52 | NW 46 G 67 | 16.09 | A Few Clouds and Windy | FEW055 | -7.2 | -16.7 | 0.6 | -7.2 | 47% | -17 | 75.87 | 1011.8 | ||||
| 07 | 05:52 | NW 31 G 54 | 16.09 | A Few Clouds | FEW049 | -6.1 | -16.7 | 43% | -14 | 75.77 | 1010.5 | ||||||
| 07 | 04:52 | NW 43 G 63 | 16.09 | Partly Cloudy and Windy | SCT049 | -4.4 | -14.4 | 46% | -13 | 75.67 | 1009.2 | ||||||
| 07 | 03:52 | NW 44 G 69 | 16.09 | Mostly Cloudy and Windy | FEW038 BKN049 | -2.2 | -11.1 | 51% | -10 | 75.57 | 1007.6 | ||||||
| 07 | 02:52 | NW 31 G 52 | 14.48 | Light Snow | SCT028 BKN043 OVC055 | -0.6 | -4.4 | 76% | -7 | 75.41 | 1005.7 | ||||||
| 07 | 01:52 | W 11 | 16.09 | Overcast | BKN060 OVC080 | 0 | -6.1 | 64% | -3 | 75.36 | 1005.0 | ||||||
| 07 | 00:52 | NW 13 G 28 | 16.09 | Mostly Cloudy | SCT044 BKN070 BKN120 | 0.6 | -6.1 | 0.6 | -2.8 | 61% | -3 | 75.39 | 1005.4 | ||||
| 06 | 23:52 | W 20 | 16.09 | Mostly Cloudy | FEW043 BKN065 BKN120 | 0 | -5.6 | 66% | -5 | 75.41 | 1005.6 | ||||||
| 06 | 22:52 | W 24 | 16.09 | Overcast | FEW040 OVC065 | 0 | -5 | 69% | -5 | 75.39 | 1005.2 | ||||||
| 06 | 21:52 | W 6 | 16.09 | Overcast | OVC041 | -1.7 | -4.4 | 82% | 75.39 | 1005.3 | |||||||
| 06 | 20:52 | Calm | 16.09 | Overcast | FEW026 BKN043 OVC065 | -2.2 | -4.4 | 85% | 75.36 | 1005.2 | |||||||
| 06 | 19:52 | SW 6 | 16.09 | Overcast | BKN026 OVC047 | -2.2 | -4.4 | 85% | 75.41 | 1005.6 | |||||||
| 06 | 18:52 | S 6 | 16.09 | Overcast | FEW012 BKN026 OVC041 | -2.2 | -3.9 | 0 | -2.8 | 88% | 75.36 | 1005.1 | 0.03 | ||||
| 06 | 17:52 | S 6 | 9.66 | Fog/Mist | FEW008 OVC012 | -2.2 | -4.4 | 85% | 75.34 | 1005.0 | |||||||
| 06 | 16:52 | Calm | 4.02 | Light Snow Fog/Mist | FEW008 SCT012 OVC021 | -2.2 | -3.9 | 88% | 75.29 | 1004.3 | 0.03 | ||||||
| 06 | 15:52 | S 7 | 2.41 | Light Snow Fog/Mist | BKN012 OVC022 | -2.8 | -4.4 | 89% | -5 | 75.26 | 1003.9 | ||||||
| 06 | 14:52 | SW 15 | 8.05 | Light Snow | BKN035 OVC045 | -1.7 | -7.8 | 63% | -6 | 75.31 | 1004.3 | ||||||
| 06 | 13:52 | SW 15 | 16.09 | Light Snow | BKN044 BKN060 OVC110 | 0 | -11.7 | 41% | -4 | 75.34 | 1004.6 | ||||||
| 06 | 12:52 | S 9 | 16.09 | Overcast | SCT060 OVC080 | -0.6 | -11.7 | -0.6 | -10.6 | 43% | -3 | 75.39 | 1005.4 | ||||
| 06 | 11:52 | SW 9 | 16.09 | Overcast | BKN060 OVC110 | -1.7 | -11.7 | 47% | -5 | 75.49 | 1006.9 | ||||||
| 06 | 10:52 | S 7 | 16.09 | Overcast | FEW030 BKN070 OVC110 | -2.2 | -11.7 | 49% | -5 | 75.57 | 1007.9 | ||||||
| 06 | 09:52 | Calm | 16.09 | Overcast | FEW030 BKN085 OVC110 | -3.9 | -11.1 | 58% | 75.59 | 1008.1 | |||||||
| 06 | 08:52 | W 6 | 16.09 | Mostly Cloudy | BKN110 BKN250 | -6.7 | -11.1 | 71% | 75.64 | 1008.9 | |||||||
| 06 | 07:52 | S 6 | 16.09 | Mostly Cloudy | BKN110 | -8.9 | -11.7 | 80% | 75.69 | 1009.3 | |||||||
| 06 | 06:52 | Calm | 16.09 | Mostly Cloudy | BKN110 | -10 | -12.8 | -8.9 | -12.8 | 80% | 75.72 | 1009.9 | |||||
| 06 | 05:52 | Calm | 16.09 | Mostly Cloudy | BKN110 | -12.2 | -13.9 | 87% | 75.79 | 1010.7 | |||||||
| 06 | 04:52 | Calm | 16.09 | Fair | CLR | -12.8 | -13.9 | 92% | 75.82 | 1011.3 | |||||||
| 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) | |||||||||||||||