Weather observations for the past three days for
Washington/Dulles International Airport, DC
| Date | Time (edt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Temperature (ºF) | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | Pressure | Precipitation (in) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 13 | 09:52 | Calm | 10.00 | Mostly Cloudy | FEW006 BKN011 BKN015 BKN250 | 75.9 | 72 | 88% | 76 | 29.95 | 1013.9 | ||||||
| 13 | 08:52 | S 3 | 10.00 | Mostly Cloudy | BKN007 BKN011 BKN250 | 73.9 | 72 | 94% | 29.95 | 1013.8 | |||||||
| 13 | 07:52 | Calm | 10.00 | Mostly Cloudy | BKN009 BKN019 BKN090 BKN250 | 73 | 72 | 73.9 | 72 | 96% | 29.94 | 1013.5 | 0.03 | ||||
| 13 | 06:52 | Calm | 10.00 | Mostly Cloudy | BKN007 BKN025 BKN100 BKN250 | 72 | 72 | 100% | 29.92 | 1012.7 | 0.01 | ||||||
| 13 | 05:52 | SE 6 | 10.00 | Light Rain | FEW006 BKN010 OVC050 | 72 | 71.1 | 97% | 29.9 | 1012.2 | 0.01 | ||||||
| 13 | 04:52 | W 3 | 8.00 | Light Rain | BKN008 OVC012 | 73 | 72 | 96% | 29.92 | 1012.9 | 0.01 | ||||||
| 13 | 03:52 | Calm | 10.00 | Overcast | OVC010 | 73 | 72 | 96% | 29.94 | 1013.6 | |||||||
| 13 | 02:52 | E 5 | 8.00 | Light Rain | OVC011 | 73.9 | 71.1 | 91% | 29.95 | 1014.0 | 0.01 | ||||||
| 13 | 01:52 | E 3 | 10.00 | Overcast | BKN011 OVC018 | 73.9 | 71.1 | 77 | 73.9 | 91% | 29.98 | 1014.8 | |||||
| 13 | 00:52 | Calm | 10.00 | Overcast | BKN012 OVC030 | 73.9 | 71.1 | 91% | 29.98 | 1015.0 | |||||||
| 12 | 23:52 | SE 5 | 10.00 | Overcast | BKN015 BKN032 OVC120 | 73.9 | 72 | 94% | 29.98 | 1014.9 | |||||||
| 12 | 22:52 | S 5 | 10.00 | Overcast | BKN015 OVC025 | 75 | 72 | 90% | 74 | 30 | 1015.7 | ||||||
| 12 | 21:52 | SE 8 | 10.00 | Mostly Cloudy | FEW015 BKN025 BKN044 BKN180 | 75.9 | 72 | 88% | 76 | 30.01 | 1016.0 | ||||||
| 12 | 20:52 | SE 7 | 10.00 | Mostly Cloudy | BKN020 BKN060 BKN120 BKN250 | 77 | 72 | 85% | 78 | 30.01 | 1016.1 | ||||||
| 12 | 19:52 | E 7 | 10.00 | Mostly Cloudy | SCT020 BKN032 BKN110 BKN250 | 77 | 72 | 80.1 | 77 | 85% | 78 | 30.01 | 1015.8 | ||||
| 12 | 18:52 | E 6 | 10.00 | Mostly Cloudy | SCT020 BKN030 BKN060 BKN150 BKN250 | 78.1 | 72 | 82% | 80 | 30.01 | 1016.0 | ||||||
| 12 | 17:52 | SE 8 | 10.00 | Mostly Cloudy | SCT020 SCT041 BKN060 BKN250 | 79 | 72 | 79% | 82 | 30 | 1015.5 | ||||||
| 12 | 16:52 | SE 7 | 10.00 | Mostly Cloudy | BKN020 BKN035 BKN055 BKN250 | 79 | 72 | 79% | 82 | 29.99 | 1015.2 | ||||||
| 12 | 15:52 | SE 10 | 10.00 | Mostly Cloudy | BKN021 BKN035 BKN055 | 79 | 72 | 79% | 82 | 30.01 | 1016.1 | ||||||
| 12 | 14:52 | SE 10 | 10.00 | Overcast | BKN023 OVC036 | 79 | 70 | 74% | 82 | 30.05 | 1017.2 | ||||||
| 12 | 13:52 | SE 8 | 10.00 | Overcast | BKN025 OVC035 | 78.1 | 70 | 80.1 | 71.1 | 76% | 80 | 30.06 | 1017.5 | ||||
| 12 | 12:52 | S 10 | 10.00 | Overcast | BKN025 OVC038 | 78.1 | 69.1 | 74% | 80 | 30.07 | 1018.0 | ||||||
| 12 | 11:52 | SE 10 | 10.00 | Mostly Cloudy | SCT023 BKN045 BKN250 | 80.1 | 69.1 | 69% | 83 | 30.08 | 1018.1 | ||||||
| 12 | 10:52 | SE 8 | 10.00 | Mostly Cloudy | FEW016 BKN034 BKN250 | 75.9 | 66.9 | 74% | 77 | 30.09 | 1018.5 | ||||||
| 12 | 09:52 | SE 9 | 10.00 | Overcast | FEW016 OVC033 | 73 | 66 | 79% | 30.08 | 1018.5 | |||||||
| 12 | 08:52 | SE 6 | 10.00 | Overcast | OVC036 | 72 | 66 | 82% | 30.09 | 1018.6 | |||||||
| 12 | 07:52 | E 5 | 10.00 | Overcast | BKN039 OVC050 | 71.1 | 66.9 | 71.1 | 66.9 | 87% | 30.08 | 1018.2 | |||||
| 12 | 06:52 | E 3 | 10.00 | Overcast | FEW025 SCT038 OVC047 | 70 | 66 | 87% | 30.07 | 1017.8 | |||||||
| 12 | 05:52 | E 3 | 10.00 | Overcast | FEW025 OVC041 | 70 | 66.9 | 90% | 30.05 | 1017.3 | |||||||
| 12 | 04:52 | E 3 | 10.00 | Overcast | OVC044 | 70 | 66.9 | 90% | 30.05 | 1017.2 | |||||||
| 12 | 03:52 | Calm | 10.00 | Mostly Cloudy | FEW040 BKN055 BKN160 BKN250 | 68 | 66 | 93% | 30.05 | 1017.3 | |||||||
| 12 | 02:52 | Calm | 10.00 | Mostly Cloudy | BKN160 BKN250 | 68 | 66 | 93% | 30.04 | 1017.1 | |||||||
| 12 | 01:52 | Calm | 10.00 | Mostly Cloudy | BKN160 BKN250 | 66.9 | 64.9 | 73.9 | 66 | 93% | 30.04 | 1017.1 | |||||
| 12 | 00:52 | Calm | 10.00 | Partly Cloudy | SCT090 SCT250 | 66.9 | 64.9 | 93% | 30.05 | 1017.3 | |||||||
| 11 | 23:52 | Calm | 10.00 | Partly Cloudy | FEW090 SCT250 | 66.9 | 64.9 | 93% | 30.05 | 1017.4 | |||||||
| 11 | 22:52 | Calm | 10.00 | Partly Cloudy | SCT250 | 71.1 | 66 | 84% | 30.05 | 1017.4 | |||||||
| 11 | 21:52 | SE 6 | 10.00 | Partly Cloudy | SCT250 | 72 | 66 | 82% | 30.05 | 1017.2 | |||||||
| 11 | 20:52 | S 5 | 10.00 | Partly Cloudy | FEW032 SCT250 | 73 | 66.9 | 81% | 30.03 | 1016.5 | |||||||
| 11 | 19:52 | SE 3 | 10.00 | Mostly Cloudy | FEW032 FEW080 BKN250 | 73.9 | 66.9 | 79 | 73 | 79% | 30 | 1015.4 | |||||
| 11 | 18:52 | E 3 | 10.00 | Mostly Cloudy | FEW037 FEW085 BKN250 | 77 | 66 | 69% | 79 | 29.98 | 1015.1 | ||||||
| 11 | 17:52 | Calm | 10.00 | Mostly Cloudy | FEW039 FEW085 BKN250 | 79 | 66.9 | 67% | 81 | 29.99 | 1015.3 | ||||||
| 11 | 16:52 | E 5 | 10.00 | Mostly Cloudy | FEW027 FEW035 SCT085 BKN240 | 79 | 66.9 | 67% | 81 | 29.98 | 1014.9 | ||||||
| 11 | 15:52 | NE 5 | 10.00 | Mostly Cloudy | SCT030 BKN075 BKN230 | 78.1 | 66.9 | 69% | 80 | 30 | 1015.6 | ||||||
| 11 | 14:52 | E 3 | 10.00 | Mostly Cloudy | FEW025 SCT035 BKN075 BKN230 | 78.1 | 66.9 | 69% | 80 | 30.02 | 1016.2 | ||||||
| 11 | 13:52 | NE 7 | 10.00 | Mostly Cloudy | FEW020 SCT033 BKN070 BKN200 | 77 | 68 | 77 | 70 | 74% | 79 | 30.02 | 1016.2 | ||||
| 11 | 12:52 | NE 6 | 10.00 | Mostly Cloudy | FEW020 BKN033 BKN075 | 77 | 69.1 | 77% | 79 | 30.03 | 1016.5 | ||||||
| 11 | 11:52 | NE 6 | 10.00 | Overcast | FEW016 BKN031 OVC070 | 75.9 | 69.1 | 79% | 77 | 30.03 | 1016.6 | ||||||
| 11 | 10:52 | N 8 | 10.00 | Overcast | FEW015 BKN027 OVC070 | 75.9 | 69.1 | 79% | 77 | 30.03 | 1016.5 | ||||||
| 11 | 09:52 | NW 5 | 10.00 | Overcast | FEW012 BKN044 OVC080 | 73 | 69.1 | 87% | 30.01 | 1016.0 | |||||||
| 11 | 08:52 | NW 3 | 10.00 | Overcast | FEW011 BKN044 OVC080 | 72 | 69.1 | 91% | 30 | 1015.6 | |||||||
| 11 | 07:52 | W 5 | 7.00 | Overcast | FEW010 BKN034 OVC060 | 70 | 68 | 78.1 | 68 | 93% | 29.99 | 1015.4 | 0.56 | ||||
| 11 | 06:52 | Calm | 2.50 | Light Rain Fog/Mist | FEW004 BKN037 OVC055 | 68 | 66.9 | 96% | 29.98 | 1015.0 | 0.33 | ||||||
| 11 | 05:52 | N 6 | 2.00 | Heavy Rain Fog/Mist | BKN032 OVC060 | 69.1 | 68 | 96% | 29.97 | 1014.6 | 0.21 | ||||||
| 11 | 04:52 | NW 7 | 10.00 | Overcast | OVC060 | 72 | 69.1 | 91% | 29.97 | 1014.3 | 0.02 | ||||||
| 11 | 03:52 | NW 8 | 10.00 | Overcast | FEW049 OVC065 | 73 | 70 | 90% | 29.95 | 1013.9 | 0.02 | ||||||
| 11 | 02:52 | W 3 | 10.00 | Light Rain | OVC075 | 75 | 69.1 | 82% | 75 | 29.94 | 1013.5 | ||||||
| 11 | 01:52 | NW 3 | 10.00 | Overcast | FEW070 OVC090 | 78.1 | 66.9 | 81 | 78.1 | 69% | 80 | 29.94 | 1013.5 | ||||
| 11 | 00:52 | NW 5 | 10.00 | Mostly Cloudy | BKN110 | 78.1 | 66.9 | 69% | 80 | 29.94 | 1013.4 | ||||||
| 10 | 23:52 | NW 7 | 10.00 | Overcast | OVC110 | 79 | 66.9 | 67% | 81 | 29.94 | 1013.4 | ||||||
| 10 | 22:52 | NW 7 | 10.00 | Mostly Cloudy | BKN120 | 80.1 | 66.9 | 64% | 82 | 29.93 | 1013.2 | ||||||
| 10 | 21:52 | NW 6 | 10.00 | Mostly Cloudy | BKN170 BKN250 | 80.1 | 68 | 67% | 83 | 29.93 | 1013.0 | ||||||
| 10 | 20:52 | NW 6 | 10.00 | Mostly Cloudy | FEW100 BKN170 BKN250 | 79 | 68 | 69% | 81 | 29.92 | 1013.0 | ||||||
| 10 | 19:52 | NW 6 | 10.00 | Partly Cloudy | FEW080 SCT160 SCT250 | 81 | 66.9 | 88 | 81 | 62% | 83 | 29.91 | 1012.5 | ||||
| 10 | 18:52 | NW 9 | 10.00 | Mostly Cloudy | FEW040 FEW080 BKN160 BKN250 | 84.9 | 66.9 | 55% | 88 | 29.91 | 1012.3 | ||||||
| 10 | 17:52 | W 10 | 10.00 | Mostly Cloudy | FEW040 SCT080 BKN160 BKN250 | 84.9 | 68 | 57% | 88 | 29.91 | 1012.4 | ||||||
| 10 | 16:52 | NW 10 | 10.00 | Mostly Cloudy | SCT070 BKN140 BKN250 | 86 | 68 | 55% | 89 | 29.91 | 1012.5 | ||||||
| 10 | 15:52 | W 9 | 10.00 | Mostly Cloudy | SCT045 BKN065 BKN110 BKN250 | 86 | 68 | 55% | 89 | 29.92 | 1012.9 | ||||||
| 10 | 14:52 | W 13 G 18 | 10.00 | Mostly Cloudy | BKN050 BKN110 BKN250 | 88 | 69.1 | 54% | 92 | 29.92 | 1012.8 | ||||||
| 10 | 13:52 | W 12 G 18 | 10.00 | Mostly Cloudy | BKN050 BKN110 BKN220 | 87.1 | 69.1 | 87.1 | 73 | 55% | 91 | 29.94 | 1013.5 | ||||
| 10 | 12:52 | W 8 | 10.00 | Mostly Cloudy | SCT040 BKN140 BKN240 | 84.9 | 70 | 61% | 89 | 29.96 | 1014.2 | ||||||
| 10 | 11:52 | W 10 | 10.00 | Mostly Cloudy | SCT050 BKN160 BKN220 | 82.9 | 69.1 | 63% | 87 | 29.97 | 1014.5 | ||||||
| 10 | 10:52 | W 3 | 10.00 | Mostly Cloudy | SCT050 BKN130 BKN250 | 81 | 69.1 | 67% | 84 | 29.98 | 1014.7 | ||||||
| Date | Time (edt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºF) | Pressure | Precipitation (in) | |||||||||||||||