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. | ||||||||||||||||
| 12 | 19:52 | S 6 | 10.00 | Mostly Cloudy | FEW040 SCT090 BKN120 BKN250 | 75 | 64.9 | 84.9 | 73.9 | 71% | 77 | 30.17 | 1021.3 | 0.23 | |||
| 12 | 18:52 | S 7 | 10.00 | Mostly Cloudy | FEW040 SCT070 BKN100 BKN250 | 75 | 64.9 | 71% | 77 | 30.17 | 1021.3 | ||||||
| 12 | 17:52 | S 9 | 10.00 | Mostly Cloudy | FEW040 SCT065 BKN100 BKN250 | 75.9 | 66.9 | 74% | 77 | 30.15 | 1020.8 | ||||||
| 12 | 16:52 | S 12 | 10.00 | Mostly Cloudy | FEW031 BKN038 BKN065 BKN250 | 73.9 | 68 | 82% | 30.14 | 1020.4 | 0.23 | 0.23 | |||||
| 12 | 15:52 | E 13 G 22 | 10.00 | Mostly Cloudy | SCT035CB BKN044 BKN250 | 78.1 | 68 | 71% | 80 | 30.13 | 1020.1 | ||||||
| 12 | 14:52 | E 10 | 10.00 | Mostly Cloudy | FEW030TCU SCT044 BKN110 BKN250 | 84 | 70 | 63% | 88 | 30.13 | 1019.8 | ||||||
| 12 | 13:52 | NE 9 | 10.00 | Mostly Cloudy | SCT030TCU SCT044 BKN110 BKN250 | 81 | 70 | 82 | 73.9 | 69% | 84 | 30.14 | 1020.3 | ||||
| 12 | 12:52 | Vrbl 6 | 10.00 | Mostly Cloudy | SCT028 SCT040 BKN110 BKN250 | 81 | 70 | 69% | 84 | 30.15 | 1020.8 | ||||||
| 12 | 11:52 | NE 8 | 10.00 | Mostly Cloudy | FEW023 SCT035 BKN110 BKN250 | 81 | 70 | 69% | 84 | 30.16 | 1021.0 | ||||||
| 12 | 10:52 | NE 8 | 10.00 | Overcast | FEW020 BKN033 OVC100 | 78.1 | 70 | 76% | 80 | 30.15 | 1020.8 | ||||||
| 12 | 09:52 | NE 7 | 10.00 | Overcast | FEW015 BKN032 OVC039 | 77 | 70 | 79% | 79 | 30.15 | 1020.6 | ||||||
| 12 | 08:52 | NE 8 | 10.00 | Overcast | FEW013 SCT019 OVC029 | 75 | 70 | 84% | 75 | 30.13 | 1019.9 | ||||||
| 12 | 07:52 | NE 6 | 10.00 | Overcast | FEW016 OVC031 | 73.9 | 71.1 | 73.9 | 72 | 91% | 30.11 | 1019.2 | |||||
| 12 | 06:52 | N 7 | 10.00 | Overcast | FEW016 BKN027 OVC031 | 73 | 70 | 90% | 30.09 | 1018.6 | |||||||
| 12 | 05:52 | N 7 | 10.00 | Overcast | OVC021 | 73 | 70 | 90% | 30.07 | 1018.0 | |||||||
| 12 | 04:52 | N 7 | 10.00 | Overcast | OVC018 | 73.9 | 71.1 | 91% | 30.06 | 1017.5 | |||||||
| 12 | 03:52 | N 5 | 10.00 | Overcast | SCT015 BKN140 OVC250 | 73 | 71.1 | 94% | 30.04 | 1016.9 | |||||||
| 12 | 02:52 | N 7 | 10.00 | Overcast | BKN019 OVC250 | 73 | 71.1 | 94% | 30.03 | 1016.5 | |||||||
| 12 | 01:52 | NE 8 | 10.00 | Overcast | SCT017 OVC023 | 73.9 | 71.1 | 82.9 | 70 | 91% | 30.03 | 1016.5 | 0.7 | ||||
| 12 | 00:52 | N 3 | 10.00 | Mostly Cloudy | BKN021 | 73.9 | 71.1 | 91% | 30.03 | 1016.4 | |||||||
| 11 | 23:52 | NW 5 | 10.00 | Mostly Cloudy | FEW100 BKN220 | 73.9 | 71.1 | 91% | 30.02 | 1016.2 | |||||||
| 11 | 22:52 | SE 6 | 10.00 | Light Rain | SCT060CB BKN085 OVC100 | 72 | 70 | 94% | 29.99 | 1015.4 | 0.53 | 0.7 | |||||
| 11 | 21:52 | NE 23 G 32 | 3.00 | Thunderstorm Heavy Rain Fog/Mist and Breezy | FEW016 BKN037CB OVC060 | 75 | 72 | 90% | 74 | 29.98 | 1015.0 | 0.17 | |||||
| 11 | 20:52 | Calm | 10.00 | Overcast | SCT040 SCT130 BKN180 OVC220 | 82 | 71.1 | 69% | 86 | 29.95 | 1013.9 | ||||||
| 11 | 19:52 | NW 6 | 10.00 | Overcast | FEW040 FEW065 SCT130 BKN180 OVC220 | 82.9 | 70 | 88 | 82.9 | 65% | 87 | 29.95 | 1013.7 | ||||
| 11 | 18:52 | NW 7 | 10.00 | Mostly Cloudy | FEW043 FEW140 BKN180 | 84 | 69.1 | 61% | 88 | 29.93 | 1013.1 | ||||||
| 11 | 17:52 | NW 12 | 10.00 | Mostly Cloudy | FEW043 SCT150 BKN210 | 86 | 69.1 | 57% | 90 | 29.92 | 1012.8 | ||||||
| 11 | 16:52 | NW 9 G 17 | 10.00 | Mostly Cloudy | FEW043 SCT150 BKN210 | 87.1 | 69.1 | 55% | 91 | 29.92 | 1012.7 | ||||||
| 11 | 15:52 | NW 8 | 10.00 | Mostly Cloudy | FEW040 SCT150 BKN200 | 87.1 | 68 | 53% | 91 | 29.92 | 1012.8 | ||||||
| 11 | 14:52 | NW 13 | 10.00 | Mostly Cloudy | FEW039TCU SCT150 BKN210 | 87.1 | 69.1 | 55% | 91 | 29.94 | 1013.4 | ||||||
| 11 | 13:52 | NW 7 | 10.00 | Mostly Cloudy | FEW033 SCT046 BKN180 BKN250 | 84.9 | 69.1 | 87.1 | 75 | 59% | 89 | 29.95 | 1013.9 | ||||
| 11 | 12:52 | W 7 | 10.00 | Mostly Cloudy | FEW031 FEW070 SCT110 SCT180 BKN250 | 84 | 69.1 | 61% | 88 | 29.97 | 1014.5 | ||||||
| 11 | 11:52 | W 8 | 10.00 | Mostly Cloudy | FEW031 FEW070 SCT180 BKN250 | 82.9 | 70 | 65% | 87 | 29.97 | 1014.6 | ||||||
| 11 | 10:52 | NW 8 | 10.00 | Mostly Cloudy | FEW040 FEW130 SCT180 BKN250 | 82 | 69.1 | 65% | 85 | 29.96 | 1014.3 | ||||||
| 11 | 09:52 | Vrbl 5 | 10.00 | Mostly Cloudy | FEW120 SCT190 BKN250 | 81 | 70 | 69% | 84 | 29.96 | 1014.2 | ||||||
| 11 | 08:52 | NW 6 | 10.00 | Mostly Cloudy | FEW120 SCT160 BKN250 | 78.1 | 68 | 71% | 80 | 29.97 | 1014.4 | ||||||
| 11 | 07:52 | N 6 | 10.00 | Mostly Cloudy | FEW070 BKN100 BKN150 BKN240 | 75 | 68 | 75 | 70 | 79% | 76 | 29.95 | 1013.9 | ||||
| 11 | 06:52 | N 6 | 10.00 | Mostly Cloudy | FEW075 BKN100 BKN120 BKN150 BKN250 | 73 | 68 | 84% | 29.95 | 1013.8 | |||||||
| 11 | 05:52 | N 7 | 10.00 | Mostly Cloudy | FEW075 BKN100 BKN120 BKN150 | 72 | 68 | 87% | 29.93 | 1013.1 | |||||||
| 11 | 04:52 | NW 5 | 10.00 | Mostly Cloudy | FEW100 BKN150 BKN250 | 72 | 68 | 87% | 29.91 | 1012.3 | |||||||
| 11 | 03:52 | NW 5 | 10.00 | Mostly Cloudy | FEW110 BKN250 | 72 | 69.1 | 91% | 29.91 | 1012.5 | |||||||
| 11 | 02:52 | NW 3 | 10.00 | Mostly Cloudy | SCT110 BKN250 | 71.1 | 70 | 96% | 29.91 | 1012.5 | |||||||
| 11 | 01:52 | SW 3 | 10.00 | Mostly Cloudy | SCT110 BKN250 | 71.1 | 70 | 73.9 | 70 | 96% | 29.92 | 1013.0 | |||||
| 11 | 00:52 | E 3 | 10.00 | Mostly Cloudy | FEW032 FEW110 BKN250 | 70 | 69.1 | 97% | 29.93 | 1013.2 | |||||||
| 10 | 23:52 | Calm | 10.00 | Partly Cloudy | FEW080 SCT250 | 70 | 70 | 100% | 29.93 | 1013.3 | |||||||
| 10 | 22:52 | E 3 | 10.00 | Partly Cloudy | FEW080 SCT250 | 71.1 | 70 | 96% | 29.93 | 1013.1 | |||||||
| 10 | 21:52 | Calm | 10.00 | Mostly Cloudy | FEW120 SCT170 BKN250 | 72 | 71.1 | 97% | 29.9 | 1012.3 | |||||||
| 10 | 20:52 | S 3 | 10.00 | Mostly Cloudy | FEW040 FEW075 SCT095 SCT170 BKN250 | 72 | 71.1 | 97% | 29.89 | 1012.0 | |||||||
| 10 | 19:52 | SE 8 | 10.00 | Mostly Cloudy | FEW035 FEW070 SCT110 BKN250 | 73.9 | 71.1 | 86 | 73 | 91% | 29.91 | 1012.4 | 0.02 | ||||
| 10 | 18:52 | S 10 | 4.00 | Light Rain Fog/Mist | FEW006 SCT031CB BKN095 BKN220 | 73 | 71.1 | 94% | 29.9 | 1012.0 | 0.02 | ||||||
| 10 | 17:52 | NW 3 | 10.00 | Mostly Cloudy | FEW060 SCT110 BKN220 | 84 | 70 | 63% | 88 | 29.88 | 1011.4 | ||||||
| 10 | 16:52 | Calm | 10.00 | Mostly Cloudy | FEW060 SCT140 BKN180 BKN250 | 84.9 | 71.1 | 63% | 90 | 29.89 | 1011.9 | ||||||
| 10 | 15:52 | S 3 | 10.00 | Light Rain | FEW040 FEW070 BKN110 OVC140 | 82 | 73 | 74% | 87 | 29.89 | 1011.9 | ||||||
| 10 | 14:52 | SW 3 | 10.00 | Overcast | FEW040 OVC140 | 82.9 | 71.1 | 67% | 88 | 29.9 | 1012.3 | ||||||
| 10 | 13:52 | Vrbl 3 | 10.00 | Overcast | FEW110 BKN140 OVC250 | 84 | 70 | 84.9 | 75.9 | 63% | 88 | 29.91 | 1012.7 | ||||
| 10 | 12:52 | SW 7 | 7.00 | Mostly Cloudy | SCT110 BKN160 BKN250 | 84 | 70 | 63% | 88 | 29.92 | 1012.8 | ||||||
| 10 | 11:52 | W 7 | 10.00 | Mostly Cloudy | SCT110 BKN160 BKN220 | 84 | 71.1 | 65% | 89 | 29.92 | 1012.9 | ||||||
| 10 | 10:52 | W 5 | 10.00 | Mostly Cloudy | SCT110 BKN160 BKN250 | 82.9 | 69.1 | 63% | 87 | 29.92 | 1012.8 | ||||||
| 10 | 09:52 | W 5 | 10.00 | Mostly Cloudy | FEW130 SCT180 BKN250 | 82.9 | 69.1 | 63% | 87 | 29.92 | 1012.8 | ||||||
| 10 | 08:52 | NW 5 | 10.00 | Mostly Cloudy | FEW120 SCT180 BKN250 | 81 | 69.1 | 67% | 84 | 29.92 | 1012.8 | ||||||
| 10 | 07:52 | Calm | 10.00 | Mostly Cloudy | BKN200 | 75.9 | 69.1 | 77 | 68 | 79% | 77 | 29.91 | 1012.5 | ||||
| 10 | 06:52 | Calm | 10.00 | Fair | CLR | 70 | 69.1 | 97% | 29.88 | 1011.6 | |||||||
| 10 | 05:52 | Vrbl 3 | 10.00 | Fair | CLR | 69.1 | 68 | 96% | 29.89 | 1011.7 | |||||||
| 10 | 04:52 | Vrbl 3 | 10.00 | Fair | CLR | 69.1 | 68 | 96% | 29.87 | 1011.1 | |||||||
| 10 | 03:52 | W 3 | 10.00 | Fair | CLR | 71.1 | 69.1 | 94% | 29.86 | 1011.0 | |||||||
| 10 | 02:52 | SW 3 | 9.00 | Fair | CLR | 71.1 | 70 | 96% | 29.86 | 1010.8 | |||||||
| 10 | 01:52 | SE 3 | 7.00 | Mostly Cloudy | BKN170 | 71.1 | 71.1 | 75.9 | 71.1 | 100% | 29.86 | 1010.8 | |||||
| 10 | 00:52 | Calm | 6.00 | Fog/Mist | CLR | 73 | 72 | 96% | 29.87 | 1011.2 | |||||||
| 09 | 23:52 | S 3 | 7.00 | Partly Cloudy | SCT190 | 73 | 72 | 96% | 29.87 | 1011.3 | |||||||
| 09 | 22:52 | Calm | 8.00 | A Few Clouds | FEW180 | 73 | 73 | 100% | 29.89 | 1011.7 | |||||||
| 09 | 21:52 | Calm | 10.00 | A Few Clouds | FEW070 FEW100 | 73 | 73 | 100% | 29.88 | 1011.4 | |||||||
| 09 | 20:52 | Calm | 10.00 | Mostly Cloudy | FEW020 BKN070 BKN100 | 75 | 73 | 94% | 73 | 29.86 | 1011.0 | ||||||
| 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) | |||||||||||||||