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. | ||||||||||||||||
| 07 | 17:52 | NW 19 | 16.09 | Fair | CLR | 11.7 | 3.3 | 57% | 76.07 | 1014.2 | |||||||
| 07 | 16:52 | NW 17 | 16.09 | A Few Clouds | FEW065 | 12.8 | 2.8 | 51% | 76 | 1013.1 | |||||||
| 07 | 15:52 | NW 15 G 31 | 16.09 | A Few Clouds | FEW065 | 15 | 3.3 | 46% | 75.95 | 1012.5 | |||||||
| 07 | 14:52 | NW 26 G 43 | 16.09 | Mostly Cloudy | BKN060 | 15.6 | 3.3 | 44% | 75.92 | 1012.0 | |||||||
| 07 | 13:52 | NW 20 G 37 | 16.09 | Partly Cloudy | SCT060 SCT250 | 16.1 | 3.9 | 44% | 75.84 | 1011.3 | |||||||
| 07 | 12:52 | NW 26 G 37 | 16.09 | Mostly Cloudy | BKN060 | 16.1 | 3.9 | 16.7 | 2.8 | 44% | 75.77 | 1010.1 | |||||
| 07 | 11:52 | N 17 | 16.09 | Overcast | OVC060 | 15 | 4.4 | 49% | 75.77 | 1010.3 | |||||||
| 07 | 10:52 | Calm | 16.09 | Mostly Cloudy | BKN055 BKN110 | 13.9 | 5.6 | 58% | 75.74 | 1010.0 | |||||||
| 07 | 09:52 | Calm | 16.09 | Mostly Cloudy | SCT060 SCT110 BKN250 | 13.3 | 7.2 | 67% | 75.72 | 1009.4 | |||||||
| 07 | 08:52 | Calm | 14.48 | Mostly Cloudy | SCT060 BKN250 | 6.7 | 5.6 | 93% | 75.67 | 1008.8 | |||||||
| 07 | 07:52 | S 7 | 9.66 | Fog/Mist | FEW050 | 2.8 | 2.2 | 96% | 1 | 75.57 | 1007.7 | ||||||
| 07 | 06:52 | S 6 | 16.09 | A Few Clouds | FEW040 | 3.9 | 3.3 | 6.1 | 0.6 | 96% | 75.49 | 1006.5 | |||||
| 07 | 05:52 | Calm | 11.27 | Fair | CLR | 3.9 | 3.9 | 100% | 75.44 | 1006.0 | |||||||
| 07 | 04:52 | S 11 | 14.48 | Fair | CLR | 4.4 | 3.9 | 97% | 2 | 75.39 | 1005.2 | ||||||
| 07 | 03:52 | S 13 | 11.27 | Fair | CLR | 3.9 | 3.9 | 100% | 1 | 75.36 | 1004.9 | ||||||
| 07 | 02:52 | Calm | 11.27 | Fair | CLR | 2.2 | 2.2 | 100% | 75.41 | 1005.4 | |||||||
| 07 | 01:52 | N 6 | 11.27 | Mostly Cloudy | SCT065 BKN080 | 2.8 | 2.2 | 96% | 75.36 | 1004.8 | |||||||
| 07 | 00:52 | Calm | 9.66 | Fog/Mist | OVC090 | 2.8 | 2.2 | 6.1 | 0 | 96% | 75.34 | 1004.6 | |||||
| 06 | 23:52 | Calm | 9.66 | Fog/Mist | FEW006 | 0.6 | 0.6 | 100% | 75.39 | 1005.3 | |||||||
| 06 | 22:52 | Calm | 9.66 | Fog/Mist | FEW090 | 2.8 | 2.8 | 100% | 75.41 | 1005.5 | |||||||
| 06 | 21:52 | Calm | 12.87 | Mostly Cloudy | BKN090 | 3.9 | 2.8 | 93% | 75.44 | 1005.8 | |||||||
| 06 | 20:52 | Calm | 12.87 | Mostly Cloudy | BKN085 | 5 | 3.9 | 93% | 75.44 | 1006.0 | |||||||
| 06 | 19:52 | Calm | 12.87 | Mostly Cloudy | BKN080 BKN250 | 5.6 | 3.9 | 89% | 75.49 | 1006.7 | |||||||
| 06 | 18:52 | Calm | 12.87 | Mostly Cloudy | BKN070 BKN250 | 5.6 | 3.9 | 9.4 | 3.9 | 89% | 75.54 | 1007.1 | |||||
| 06 | 17:52 | SE 6 | 12.87 | Mostly Cloudy | BKN070 BKN250 | 4.4 | 2.8 | 89% | 75.57 | 1007.6 | |||||||
| 06 | 16:52 | SE 6 | 14.48 | Mostly Cloudy | BKN075 BKN250 | 7.2 | 4.4 | 83% | 75.59 | 1007.8 | |||||||
| 06 | 15:52 | S 9 | 16.09 | Overcast | SCT090 OVC250 | 7.8 | 4.4 | 79% | 6 | 75.57 | 1007.5 | ||||||
| 06 | 14:52 | Vrbl 9 | 16.09 | Overcast | FEW120 OVC230 | 8.9 | 3.9 | 71% | 8 | 75.54 | 1007.3 | ||||||
| 06 | 13:52 | SE 7 | 14.48 | Overcast | OVC230 | 7.8 | 3.3 | 73% | 7 | 75.64 | 1008.4 | ||||||
| 06 | 12:52 | E 6 | 14.48 | Overcast | FEW011 OVC220 | 6.7 | 2.8 | 6.7 | -1.7 | 76% | 75.74 | 1009.9 | |||||
| 06 | 11:52 | NW 6 | 12.87 | Overcast | BKN170 OVC240 | 5 | 1.1 | 76% | 75.84 | 1011.2 | |||||||
| 06 | 10:52 | NW 6 | 12.87 | Overcast | OVC240 | 3.9 | 0.6 | 79% | 75.95 | 1012.8 | |||||||
| 06 | 09:52 | Calm | 12.87 | Overcast | OVC240 | 2.8 | 0.6 | 86% | 76.02 | 1013.6 | |||||||
| 06 | 08:52 | Calm | 14.48 | Mostly Cloudy | BKN230 | 1.1 | -0.6 | 89% | 76.05 | 1014.1 | |||||||
| 06 | 07:52 | Calm | 14.48 | Mostly Cloudy | BKN230 | -0.6 | -2.2 | 89% | 76.02 | 1013.7 | |||||||
| 06 | 06:52 | Calm | 16.09 | Mostly Cloudy | BKN220 | -1.7 | -2.2 | 2.2 | -1.7 | 96% | 76.05 | 1014.0 | |||||
| 06 | 05:52 | Calm | 16.09 | Overcast | OVC230 | -1.1 | -1.7 | 96% | 76.07 | 1014.3 | |||||||
| 06 | 04:52 | SE 6 | 16.09 | Overcast | OVC230 | -0.6 | -1.7 | 92% | 76.05 | 1014.1 | |||||||
| 06 | 03:52 | Calm | 16.09 | Overcast | OVC240 | -0.6 | -1.7 | 92% | 76.07 | 1014.4 | |||||||
| 06 | 02:52 | NW 6 | 16.09 | Overcast | OVC220 | 0.6 | -1.1 | 89% | 76.1 | 1014.6 | |||||||
| 06 | 01:52 | Calm | 16.09 | Overcast | OVC250 | 1.7 | -0.6 | 85% | 76.07 | 1014.4 | |||||||
| 06 | 00:52 | S 7 | 16.09 | Overcast | OVC250 | 2.2 | -0.6 | 3.9 | 1.7 | 82% | 0 | 76.1 | 1014.7 | ||||
| 05 | 23:52 | S 6 | 16.09 | Fair | CLR | 1.7 | -1.1 | 82% | 76.12 | 1014.9 | |||||||
| 05 | 22:52 | S 7 | 16.09 | Mostly Cloudy | BKN250 | 1.7 | -1.1 | 82% | -0 | 76.17 | 1015.6 | ||||||
| 05 | 21:52 | S 9 | 16.09 | Mostly Cloudy | BKN200 | 2.2 | -1.1 | 79% | -0 | 76.2 | 1016.1 | ||||||
| 05 | 20:52 | SW 9 | 16.09 | Mostly Cloudy | BKN200 | 2.2 | -1.7 | 76% | -0 | 76.23 | 1016.5 | ||||||
| 05 | 19:52 | S 15 | 16.09 | Partly Cloudy | SCT200 | 3.9 | -1.1 | 70% | 1 | 76.23 | 1016.4 | ||||||
| 05 | 18:52 | S 15 | 16.09 | Mostly Cloudy | FEW023 SCT100 BKN200 | 3.9 | -1.7 | 5.6 | 3.9 | 67% | 1 | 76.25 | 1016.8 | ||||
| 05 | 17:52 | S 19 | 16.09 | Mostly Cloudy | BKN024 BKN100 BKN200 | 5 | -2.2 | 60% | 2 | 76.23 | 1016.6 | ||||||
| 05 | 16:52 | S 15 | 16.09 | Mostly Cloudy | BKN026 BKN180 BKN250 | 5 | -3.3 | 55% | 2 | 76.25 | 1016.9 | ||||||
| 05 | 15:52 | S 15 | 16.09 | Mostly Cloudy | SCT026 BKN180 BKN250 | 5.6 | -3.9 | 51% | 3 | 76.28 | 1017.1 | ||||||
| 05 | 14:52 | S 15 | 16.09 | Mostly Cloudy | BKN027 BKN180 BKN250 | 5.6 | -4.4 | 49% | 3 | 76.3 | 1017.4 | ||||||
| 05 | 13:52 | S 15 G 33 | 16.09 | Mostly Cloudy | BKN027 BKN160 BKN250 | 5.6 | -4.4 | 49% | 3 | 76.38 | 1018.5 | ||||||
| 05 | 12:52 | S 19 | 16.09 | Overcast | OVC028 | 3.9 | -5 | 3.9 | -2.8 | 53% | 0 | 76.48 | 1019.9 | ||||
| 05 | 11:52 | S 19 | 16.09 | Overcast | OVC034 | 2.8 | -5 | 57% | -1 | 76.56 | 1021.0 | ||||||
| 05 | 10:52 | S 15 | 16.09 | Mostly Cloudy | BKN170 BKN250 | 2.2 | -4.4 | 62% | -1 | 76.68 | 1022.6 | ||||||
| 05 | 09:52 | S 15 | 16.09 | Mostly Cloudy | BKN170 BKN250 | 0 | -5 | 69% | -4 | 76.73 | 1023.3 | ||||||
| 05 | 08:52 | S 11 | 16.09 | Mostly Cloudy | BKN170 BKN250 | -1.1 | -5 | 75% | -5 | 76.76 | 1023.8 | ||||||
| 05 | 07:52 | S 7 | 16.09 | Mostly Cloudy | BKN150 BKN220 | -2.2 | -5.6 | 78% | -5 | 76.78 | 1023.9 | ||||||
| 05 | 06:52 | S 6 | 16.09 | Mostly Cloudy | BKN150 | -2.8 | -6.7 | -2.2 | -6.1 | 75% | 76.76 | 1023.7 | |||||
| 05 | 05:52 | S 6 | 16.09 | Partly Cloudy | SCT190 | -4.4 | -7.8 | 77% | 76.78 | 1023.9 | |||||||
| 05 | 04:52 | Calm | 16.09 | Partly Cloudy | SCT190 | -5 | -7.8 | 81% | 76.78 | 1023.9 | |||||||
| 05 | 03:52 | S 6 | 16.09 | Overcast | OVC190 | -3.3 | -7.2 | 75% | 76.81 | 1024.1 | |||||||
| 05 | 02:52 | S 6 | 16.09 | Overcast | OVC250 | -3.3 | -7.2 | 75% | 76.78 | 1023.7 | |||||||
| 05 | 01:52 | Calm | 16.09 | Mostly Cloudy | BKN210 | -2.8 | -7.2 | 72% | 76.76 | 1023.5 | |||||||
| 05 | 00:52 | S 6 | 16.09 | Mostly Cloudy | BKN220 | -3.3 | -7.2 | 2.2 | -3.3 | 75% | 76.76 | 1023.8 | |||||
| 04 | 23:52 | Calm | 16.09 | Mostly Cloudy | BKN220 | -1.7 | -7.2 | 66% | 76.78 | 1023.9 | |||||||
| 04 | 22:52 | Calm | 16.09 | Mostly Cloudy | BKN250 | -2.2 | -7.8 | 66% | 76.81 | 1024.3 | |||||||
| 04 | 21:52 | N 9 | 16.09 | Mostly Cloudy | BKN250 | -0.6 | -7.2 | 61% | -3 | 76.84 | 1024.5 | ||||||
| 04 | 20:52 | N 11 | 16.09 | Mostly Cloudy | BKN250 | 0 | -7.2 | 59% | -3 | 76.81 | 1024.2 | ||||||
| 04 | 19:52 | N 22 G 33 | 16.09 | Mostly Cloudy | BKN250 | 0.6 | -7.2 | 56% | -4 | 76.73 | 1023.2 | ||||||
| 04 | 18:52 | N 13 | 16.09 | A Few Clouds | FEW250 | 1.7 | -7.2 | 5.6 | 1.7 | 52% | -2 | 76.68 | 1022.5 | ||||
| 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) | |||||||||||||||