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. | ||||||||||||||||
| 18 | 11:52 | N 20 | 16.09 | Overcast | FEW020 BKN041 OVC050 | 2.2 | -3.9 | 64% | -2 | 76.17 | 1015.7 | ||||||
| 18 | 10:52 | N 22 G 35 | 16.09 | Overcast | FEW018 OVC040 | 2.8 | -0.6 | 79% | -2 | 76.25 | 1016.6 | ||||||
| 18 | 09:52 | N 11 | 16.09 | Overcast | OVC038 | 2.2 | 0 | 86% | -1 | 76.25 | 1016.8 | 0.03 | |||||
| 18 | 08:52 | N 15 | 12.87 | Overcast | OVC035 | 2.2 | 0.6 | 89% | -1 | 76.25 | 1016.6 | ||||||
| 18 | 07:52 | N 7 | 12.87 | Overcast | OVC027 | 1.7 | 0.6 | 93% | -0 | 76.28 | 1017.2 | 0.03 | |||||
| 18 | 06:52 | NW 9 | 8.05 | Light Rain Fog/Mist | OVC015 | 1.1 | 0.6 | 1.7 | 0 | 97% | -1 | 76.3 | 1017.4 | 0.03 | 0.15 | ||
| 18 | 05:52 | W 7 | 8.05 | Light Rain Fog/Mist | BKN017 OVC022 | 1.1 | 0.6 | 97% | -1 | 76.28 | 1017.2 | 0.13 | |||||
| 18 | 04:52 | NW 7 | 11.27 | Light Rain | OVC039 | 1.1 | 0 | 92% | -1 | 76.28 | 1017.0 | ||||||
| 18 | 03:52 | Calm | 16.09 | Overcast | FEW040 OVC055 | 1.1 | -0.6 | 89% | 76.28 | 1016.9 | |||||||
| 18 | 02:52 | N 9 | 16.09 | Overcast | BKN060 OVC095 | 1.1 | -1.1 | 85% | -1 | 76.17 | 1015.6 | ||||||
| 18 | 01:52 | Calm | 16.09 | Overcast | FEW048 OVC060 | 0.6 | -1.7 | 85% | 76.28 | 1017.2 | |||||||
| 18 | 00:52 | Calm | 16.09 | Overcast | OVC140 | 0 | -1.7 | 3.9 | -0.6 | 88% | 76.33 | 1017.7 | |||||
| 17 | 23:52 | Calm | 16.09 | Overcast | OVC130 | 0.6 | -1.7 | 85% | 76.35 | 1018.2 | |||||||
| 17 | 22:52 | W 6 | 16.09 | Overcast | FEW120 BKN130 OVC160 | 0 | -1.7 | 88% | 76.4 | 1018.8 | |||||||
| 17 | 21:52 | Calm | 16.09 | Overcast | FEW070 OVC120 | 0.6 | -1.7 | 85% | 76.4 | 1018.8 | |||||||
| 17 | 20:52 | E 9 | 16.09 | Partly Cloudy | SCT070 | 2.8 | -1.7 | 73% | 1 | 76.38 | 1018.4 | ||||||
| 17 | 19:52 | SE 9 | 16.09 | A Few Clouds | FEW070 | 2.8 | -1.7 | 73% | 1 | 76.43 | 1019.0 | ||||||
| 17 | 18:52 | SE 13 | 16.09 | A Few Clouds | FEW070 | 3.3 | -1.7 | 6.7 | 2.2 | 70% | 0 | 76.43 | 1019.1 | ||||
| 17 | 17:52 | SE 9 | 16.09 | Fair | CLR | 3.3 | -2.2 | 68% | 1 | 76.38 | 1018.4 | ||||||
| 17 | 16:52 | SE 6 | 16.09 | A Few Clouds | FEW055 | 5 | -1.7 | 62% | 76.35 | 1018.0 | |||||||
| 17 | 15:52 | SE 9 | 16.09 | Partly Cloudy | SCT055 | 6.7 | -1.1 | 58% | 5 | 76.3 | 1017.4 | ||||||
| 17 | 14:52 | Vrbl 11 | 16.09 | A Few Clouds | FEW055 FEW100 | 6.1 | -1.1 | 60% | 4 | 76.28 | 1017.0 | ||||||
| 17 | 13:52 | S 13 | 16.09 | Mostly Cloudy | FEW050 SCT090 BKN250 | 5 | -1.7 | 62% | 2 | 76.25 | 1016.8 | ||||||
| 17 | 11:52 | SW 15 | 16.09 | Mostly Cloudy | BKN065 | 2.2 | -2.8 | 70% | -1 | 76.28 | 1017.1 | ||||||
| 17 | 10:52 | S 15 | 16.09 | Mostly Cloudy | SCT022 BKN065 BKN150 | 1.1 | -2.2 | 79% | -3 | 76.33 | 1017.7 | 0.03 | |||||
| 17 | 09:52 | S 15 | 12.87 | Light Snow | SCT041 OVC060 | 0.6 | -2.2 | 82% | -3 | 76.3 | 1017.4 | 0.05 | 0.05 | ||||
| 17 | 08:52 | SW 6 | 11.27 | Light Snow | BKN030 OVC060 | 2.8 | -8.9 | 42% | 76.28 | 1017.2 | |||||||
| 17 | 07:52 | SE 11 | 16.09 | Mostly Cloudy | BKN055 BKN070 | 2.8 | -10.6 | 37% | 0 | 76.2 | 1016.2 | ||||||
| 17 | 06:52 | S 13 | 16.09 | Mostly Cloudy | SCT060 BKN075 | 3.3 | -11.1 | 3.3 | 2.2 | 34% | 0 | 76.2 | 1016.2 | ||||
| 17 | 05:52 | S 13 | 16.09 | Overcast | OVC080 | 3.3 | -11.7 | 33% | 0 | 76.17 | 1015.8 | ||||||
| 17 | 04:52 | S 17 | 16.09 | Overcast | OVC095 | 2.8 | -12.2 | 33% | -1 | 76.12 | 1015.1 | ||||||
| 17 | 03:52 | S 17 G 30 | 16.09 | Overcast | OVC100 | 2.8 | -12.8 | 31% | -1 | 76.2 | 1015.9 | ||||||
| 17 | 02:52 | S 13 | 16.09 | Overcast | OVC110 | 2.8 | -13.3 | 30% | -0 | 76.25 | 1016.6 | ||||||
| 17 | 01:52 | S 11 | 16.09 | Overcast | BKN110 OVC160 | 2.8 | -13.3 | 30% | 0 | 76.2 | 1016.2 | ||||||
| 17 | 00:52 | Calm | 16.09 | Overcast | BKN080 OVC160 | 2.2 | -13.3 | 2.8 | 0.6 | 31% | 76.23 | 1016.6 | |||||
| 16 | 23:52 | S 7 | 16.09 | Overcast | SCT080 OVC160 | 2.2 | -13.3 | 31% | 0 | 76.2 | 1016.3 | ||||||
| 16 | 22:52 | S 13 | 16.09 | Overcast | SCT110 OVC160 | 2.8 | -13.9 | 28% | -0 | 76.2 | 1016.1 | ||||||
| 16 | 21:52 | S 15 | 16.09 | Overcast | BKN075 OVC120 | 2.2 | -13.9 | 30% | -1 | 76.17 | 1015.7 | ||||||
| 16 | 20:52 | S 15 | 16.09 | Overcast | OVC070 | 1.7 | -13.3 | 32% | -2 | 76.23 | 1016.3 | ||||||
| 16 | 18:52 | S 13 | 16.09 | Overcast | OVC070 | 0.6 | -13.9 | 0.6 | -1.1 | 33% | -3 | 76.23 | 1016.3 | ||||
| 16 | 17:52 | S 11 | 16.09 | Overcast | OVC080 | 0.6 | -13.9 | 33% | -2 | 76.2 | 1016.3 | ||||||
| 16 | 16:52 | S 19 | 16.09 | Overcast | OVC085 | 0 | -14.4 | 33% | -5 | 76.2 | 1016.2 | ||||||
| 16 | 15:52 | S 11 | 16.09 | Overcast | OVC080 | 0 | -14.4 | 33% | -3 | 76.23 | 1016.4 | ||||||
| 16 | 14:52 | S 9 | 16.09 | Overcast | OVC085 | -0.6 | -14.4 | 35% | -3 | 76.23 | 1016.4 | ||||||
| 16 | 13:52 | S 20 | 16.09 | Mostly Cloudy | BKN095 BKN130 | 0 | -13.9 | 35% | -5 | 76.2 | 1016.3 | ||||||
| 16 | 12:52 | S 17 | 16.09 | Mostly Cloudy | BKN100 BKN130 | -1.1 | -14.4 | -0.6 | -7.8 | 36% | -6 | 76.23 | 1016.5 | ||||
| 16 | 11:52 | SW 13 | 16.09 | Mostly Cloudy | BKN100 BKN130 | -1.7 | -15 | 36% | -6 | 76.28 | 1017.4 | ||||||
| 16 | 10:52 | S 13 | 16.09 | Mostly Cloudy | BKN120 BKN220 | -2.2 | -15 | 37% | -6 | 76.25 | 1016.8 | ||||||
| 16 | 09:52 | SW 11 | 16.09 | Mostly Cloudy | BKN160 BKN220 | -2.8 | -15 | 39% | -7 | 76.25 | 1016.8 | ||||||
| 16 | 08:52 | SW 17 G 28 | 16.09 | Mostly Cloudy | BKN220 | -3.9 | -14.4 | 44% | -9 | 76.2 | 1016.3 | ||||||
| 16 | 07:52 | SW 11 | 16.09 | A Few Clouds | FEW050 | -6.1 | -14.4 | 52% | -10 | 76.15 | 1015.4 | ||||||
| 16 | 06:52 | SW 6 | 16.09 | Fair | CLR | -6.1 | -14.4 | -5.6 | -6.7 | 52% | 76.1 | 1014.9 | |||||
| 16 | 05:52 | W 11 | 16.09 | A Few Clouds | FEW050 | -6.1 | -15 | 50% | -10 | 76.05 | 1014.1 | ||||||
| 16 | 04:52 | W 22 | 16.09 | Fair | CLR | -6.1 | -15 | 50% | -13 | 75.95 | 1012.8 | ||||||
| 16 | 03:52 | W 20 | 16.09 | Fair | CLR | -6.1 | -15 | 50% | -12 | 75.9 | 1012.3 | ||||||
| 16 | 02:52 | W 26 G 39 | 16.09 | Fair | CLR | -5.6 | -16.1 | 44% | -13 | 75.9 | 1012.0 | ||||||
| 16 | 01:52 | NW 22 | 16.09 | Fair | CLR | -6.1 | -16.1 | 45% | -13 | 75.79 | 1010.9 | ||||||
| 16 | 00:52 | NW 37 G 56 | 16.09 | Fair and Breezy | CLR | -5.6 | -15.6 | -5 | -6.1 | 46% | -14 | 75.72 | 1009.7 | ||||
| 15 | 23:52 | NW 24 G 48 | 16.09 | A Few Clouds | FEW045 | -5.6 | -14.4 | 50% | -12 | 75.64 | 1008.8 | ||||||
| 15 | 22:52 | NW 24 G 46 | 16.09 | Mostly Cloudy | BKN045 | -5.6 | -15.6 | 46% | -12 | 75.64 | 1008.8 | ||||||
| 15 | 21:52 | NW 35 G 48 | 16.09 | Mostly Cloudy and Breezy | BKN048 | -5.6 | -16.1 | 44% | -14 | 75.62 | 1008.4 | ||||||
| 15 | 20:52 | NW 24 G 44 | 16.09 | A Few Clouds | FEW055 | -5.6 | -16.1 | 44% | -12 | 75.57 | 1007.9 | ||||||
| 15 | 19:52 | W 28 G 44 | 16.09 | A Few Clouds | FEW060 | -5.6 | -16.1 | 44% | -13 | 75.51 | 1007.1 | ||||||
| 15 | 18:52 | NW 30 G 50 | 16.09 | A Few Clouds | FEW060 | -5 | -16.1 | 0 | -5 | 42% | -12 | 75.46 | 1006.6 | ||||
| 15 | 17:52 | NW 28 G 41 | 16.09 | Mostly Cloudy | BKN060 | -3.9 | -15 | 42% | -11 | 75.44 | 1006.0 | ||||||
| 15 | 16:52 | NW 28 G 48 | 16.09 | A Few Clouds | FEW060 | -3.3 | -15 | 40% | -10 | 75.39 | 1005.3 | ||||||
| 15 | 15:52 | NW 30 G 44 | 16.09 | A Few Clouds | FEW060 | -1.7 | -15 | 36% | -8 | 75.34 | 1004.6 | ||||||
| 15 | 14:52 | W 31 G 52 | 16.09 | Partly Cloudy | SCT060 | -0.6 | -15.6 | 31% | -7 | 75.26 | 1003.7 | ||||||
| 15 | 13:52 | W 26 G 43 | 16.09 | Partly Cloudy | SCT060 | 0 | -15.6 | 30% | -6 | 75.23 | 1003.3 | ||||||
| 15 | 12:52 | W 39 G 52 | 16.09 | Mostly Cloudy and Breezy | BKN060 | -1.7 | -15.6 | 0 | -2.2 | 34% | -9 | 75.29 | 1003.7 | ||||
| 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) | |||||||||||||||