Weather observations for the past three days for
Washington/Dulles International Airport, DC
| Date | Time (est) | 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. | ||||||||||||||||
| 20 | 23:52 | Calm | 10.00 | Overcast | OVC018 | 45 | 41 | 86% | 30.14 | 1020.6 | |||||||
| 20 | 22:52 | Calm | 10.00 | Overcast | OVC018 | 45 | 39.9 | 83% | 30.15 | 1020.9 | |||||||
| 20 | 21:52 | S 3 | 10.00 | Overcast | OVC019 | 46.9 | 39.9 | 77% | 30.16 | 1021.4 | |||||||
| 20 | 20:52 | S 3 | 10.00 | Overcast | OVC019 | 46 | 41 | 83% | 30.16 | 1021.4 | |||||||
| 20 | 19:52 | Calm | 10.00 | Overcast | OVC020 | 46 | 39.9 | 79% | 30.16 | 1021.4 | |||||||
| 20 | 18:52 | S 3 | 10.00 | Overcast | OVC022 | 46 | 39.9 | 48 | 46 | 79% | 30.17 | 1021.6 | |||||
| 20 | 17:52 | S 5 | 10.00 | Overcast | OVC023 | 46 | 39.9 | 79% | 44 | 30.17 | 1021.7 | ||||||
| 20 | 16:52 | S 6 | 10.00 | Overcast | OVC020 | 46.9 | 39.9 | 77% | 45 | 30.16 | 1021.2 | ||||||
| 20 | 15:52 | S 3 | 8.00 | Overcast | BKN020 BKN030 OVC055 | 48 | 39.9 | 74% | 30.15 | 1021.2 | |||||||
| 20 | 14:52 | Calm | 10.00 | Overcast | FEW019 SCT032 OVC046 | 48 | 39.9 | 74% | 30.15 | 1021.2 | |||||||
| 20 | 13:52 | S 5 | 10.00 | Overcast | BKN022 OVC047 | 48 | 39.9 | 74% | 47 | 30.16 | 1021.3 | ||||||
| 20 | 12:52 | Calm | 10.00 | Overcast | BKN022 OVC055 | 48 | 39.9 | 48 | 41 | 74% | 30.16 | 1021.4 | |||||
| 20 | 11:52 | Vrbl 3 | 10.00 | Overcast | OVC021 | 46 | 39 | 77% | 30.2 | 1022.8 | |||||||
| 20 | 10:52 | Calm | 7.00 | Overcast | OVC021 | 46 | 39 | 77% | 30.23 | 1023.7 | |||||||
| 20 | 09:52 | S 3 | 7.00 | Overcast | BKN017 OVC034 | 44.1 | 37.9 | 79% | 30.24 | 1024.0 | |||||||
| 20 | 08:52 | E 3 | 7.00 | Overcast | OVC015 | 43 | 37 | 80% | 30.25 | 1024.4 | |||||||
| 20 | 07:52 | Calm | 10.00 | Overcast | OVC014 | 42.1 | 37 | 82% | 30.25 | 1024.5 | |||||||
| 20 | 06:52 | Calm | 10.00 | Overcast | OVC015 | 41 | 37 | 42.1 | 41 | 86% | 30.24 | 1023.9 | |||||
| 20 | 05:52 | E 3 | 10.00 | Overcast | BKN016 OVC035 | 41 | 37 | 86% | 30.23 | 1023.9 | |||||||
| 20 | 04:52 | W 3 | 10.00 | Overcast | OVC018 | 42.1 | 37 | 82% | 30.24 | 1024.2 | |||||||
| 20 | 03:52 | Calm | 10.00 | Overcast | OVC024 | 42.1 | 37 | 82% | 30.23 | 1023.9 | |||||||
| 20 | 02:52 | Calm | 10.00 | Overcast | FEW015 OVC024 | 42.1 | 37 | 82% | 30.24 | 1024.0 | |||||||
| 20 | 01:52 | N 5 | 10.00 | Overcast | OVC025 | 42.1 | 37 | 82% | 40 | 30.23 | 1023.8 | ||||||
| 20 | 00:52 | Calm | 10.00 | Overcast | FEW015 OVC025 | 42.1 | 37 | 44.1 | 42.1 | 82% | 30.24 | 1024.1 | |||||
| 19 | 23:52 | N 3 | 10.00 | Overcast | FEW015 OVC024 | 43 | 37 | 80% | 30.24 | 1024.3 | |||||||
| 19 | 22:52 | NE 5 | 10.00 | Overcast | OVC025 | 43 | 37 | 80% | 41 | 30.26 | 1024.7 | ||||||
| 19 | 21:52 | NE 5 | 10.00 | Overcast | FEW018 OVC028 | 43 | 37 | 80% | 41 | 30.27 | 1025.1 | ||||||
| 19 | 20:52 | NW 3 | 10.00 | Overcast | SCT018 OVC029 | 43 | 37 | 80% | 30.26 | 1024.9 | |||||||
| 19 | 19:52 | NW 5 | 10.00 | Mostly Cloudy | BKN018 BKN250 | 42.1 | 37 | 82% | 40 | 30.26 | 1024.7 | ||||||
| 19 | 18:52 | N 7 | 10.00 | Overcast | OVC018 | 44.1 | 37 | 45 | 44.1 | 76% | 41 | 30.24 | 1024.0 | ||||
| 19 | 17:52 | NW 9 | 10.00 | Overcast | OVC018 | 44.1 | 37 | 76% | 40 | 30.23 | 1023.7 | ||||||
| 19 | 16:52 | N 9 | 10.00 | Mostly Cloudy | BKN017 BKN250 | 44.1 | 37.9 | 79% | 40 | 30.22 | 1023.3 | ||||||
| 19 | 15:52 | N 7 | 10.00 | Mostly Cloudy | BKN017 BKN250 | 45 | 37.9 | 77% | 42 | 30.2 | 1022.8 | ||||||
| 19 | 14:52 | N 10 | 10.00 | Mostly Cloudy | BKN017 BKN250 | 45 | 37.9 | 77% | 40 | 30.19 | 1022.3 | ||||||
| 19 | 13:52 | N 8 | 10.00 | Overcast | OVC018 | 45 | 37.9 | 77% | 41 | 30.18 | 1022.1 | ||||||
| 19 | 12:52 | N 10 | 10.00 | Overcast | OVC015 | 44.1 | 37.9 | 45 | 42.1 | 79% | 39 | 30.18 | 1022.2 | ||||
| 19 | 11:52 | N 10 | 10.00 | Overcast | OVC015 | 44.1 | 39 | 83% | 39 | 30.17 | 1021.8 | ||||||
| 19 | 10:52 | N 9 | 10.00 | Mostly Cloudy | SCT010 BKN015 | 44.1 | 37.9 | 79% | 40 | 30.18 | 1022.1 | ||||||
| 19 | 09:52 | N 8 | 10.00 | Overcast | SCT008 BKN014 OVC017 | 43 | 39.9 | 89% | 39 | 30.17 | 1021.6 | ||||||
| 19 | 08:52 | N 10 | 6.00 | Fog/Mist | BKN008 OVC015 | 43 | 41 | 93% | 38 | 30.13 | 1020.5 | ||||||
| 19 | 07:52 | NW 7 | 6.00 | Fog/Mist | OVC006 | 42.1 | 41 | 96% | 38 | 30.12 | 1020.0 | ||||||
| 19 | 06:52 | NW 8 | 3.00 | Fog/Mist | OVC003 | 42.1 | 41 | 43 | 41 | 96% | 38 | 30.09 | 1019.1 | 0.07 | |||
| 19 | 05:52 | NW 7 | 3.00 | Fog/Mist | OVC003 | 42.1 | 41 | 96% | 38 | 30.06 | 1017.9 | ||||||
| 19 | 04:52 | NW 9 | 4.00 | Fog/Mist | OVC004 | 42.1 | 41 | 96% | 37 | 30.04 | 1017.4 | ||||||
| 19 | 03:52 | NW 3 | 4.00 | Fog/Mist | OVC005 | 42.1 | 42.1 | 100% | 30.02 | 1016.6 | 0.07 | ||||||
| 19 | 02:52 | Calm | 6.00 | Light Rain Fog/Mist | OVC006 | 43 | 42.1 | 97% | 30.03 | 1017.1 | 0.02 | ||||||
| 19 | 01:52 | E 7 | 6.00 | Light Rain Fog/Mist | BKN006 OVC060 | 42.1 | 41 | 96% | 38 | 30.02 | 1016.6 | 0.05 | |||||
| 19 | 00:52 | SE 5 | 8.00 | Light Rain | OVC060 | 41 | 39.9 | 42.1 | 39.9 | 96% | 38 | 30.07 | 1018.3 | 0.02 | 0.12 | ||
| 18 | 23:52 | E 5 | 6.00 | Light Rain Fog/Mist | OVC065 | 41 | 39 | 93% | 38 | 30.11 | 1019.7 | 0.06 | |||||
| 18 | 22:52 | NE 3 | 10.00 | Overcast | OVC070 | 41 | 39 | 93% | 30.13 | 1020.3 | |||||||
| 18 | 21:52 | E 5 | 10.00 | Light Rain | OVC050 | 41 | 37.9 | 89% | 38 | 30.13 | 1020.2 | 0.01 | 0.04 | ||||
| 18 | 20:52 | Calm | 10.00 | Light Rain | BKN042 OVC060 | 41 | 37.9 | 89% | 30.15 | 1021.2 | |||||||
| 18 | 19:52 | SE 5 | 10.00 | Overcast | SCT048 BKN070 OVC095 | 39.9 | 39 | 97% | 37 | 30.14 | 1020.9 | 0.03 | |||||
| 18 | 18:52 | S 3 | 8.00 | Rain | BKN042 OVC075 | 41 | 37.9 | 48.9 | 39.9 | 89% | 30.16 | 1021.4 | 0.07 | 0.1 | |||
| 18 | 17:52 | SW 5 | 10.00 | Light Rain | OVC045 | 42.1 | 36 | 79% | 40 | 30.17 | 1021.8 | 0.03 | |||||
| 18 | 16:52 | S 9 | 10.00 | Overcast | OVC050 | 46.9 | 25 | 42% | 43 | 30.15 | 1021.1 | ||||||
| 18 | 15:52 | S 5 | 10.00 | Overcast | OVC055 | 48 | 23 | 37% | 47 | 30.15 | 1021.0 | ||||||
| 18 | 14:52 | S 8 | 10.00 | Overcast | OVC060 | 48 | 23 | 37% | 45 | 30.16 | 1021.4 | ||||||
| 18 | 13:52 | S 6 | 10.00 | Overcast | BKN070 OVC110 | 48 | 24.1 | 39% | 46 | 30.18 | 1022.1 | ||||||
| 18 | 12:52 | S 7 | 10.00 | Overcast | FEW065 SCT085 OVC110 | 48 | 23 | 48.9 | 26.1 | 37% | 45 | 30.19 | 1022.4 | ||||
| 18 | 11:52 | SW 8 | 10.00 | Mostly Cloudy | FEW100 SCT140 SCT180 BKN250 | 48 | 21.9 | 36% | 45 | 30.21 | 1023.0 | ||||||
| 18 | 10:52 | Vrbl 5 | 10.00 | Mostly Cloudy | FEW065 FEW120 SCT180 BKN250 | 46 | 23 | 40% | 44 | 30.24 | 1024.4 | ||||||
| 18 | 09:52 | S 5 | 10.00 | Mostly Cloudy | FEW065 FEW110 SCT180 BKN250 | 42.1 | 21.9 | 45% | 40 | 30.25 | 1024.6 | ||||||
| 18 | 08:52 | Calm | 10.00 | Mostly Cloudy | FEW190 BKN250 | 35.1 | 25 | 67% | 30.25 | 1024.5 | |||||||
| 18 | 07:52 | Calm | 10.00 | Mostly Cloudy | FEW110 FEW190 BKN250 | 30 | 21.9 | 72% | 30.24 | 1024.3 | |||||||
| 18 | 06:52 | S 3 | 10.00 | Mostly Cloudy | BKN250 | 27 | 21 | 32 | 24.1 | 78% | 30.22 | 1023.7 | |||||
| 18 | 05:52 | Calm | 10.00 | Fair | CLR | 27 | 19.9 | 75% | 30.2 | 1023.0 | |||||||
| 18 | 04:52 | N 3 | 10.00 | Fair | CLR | 28 | 21 | 75% | 30.19 | 1022.5 | |||||||
| 18 | 03:52 | Calm | 10.00 | Fair | CLR | 27 | 19.9 | 75% | 30.18 | 1022.2 | |||||||
| 18 | 02:52 | NW 5 | 10.00 | Fair | CLR | 28 | 19.9 | 72% | 24 | 30.17 | 1021.8 | ||||||
| 18 | 01:52 | NW 3 | 10.00 | Fair | CLR | 30 | 19.9 | 66% | 30.16 | 1021.3 | |||||||
| 18 | 00:52 | Calm | 10.00 | Fair | CLR | 32 | 19.9 | 43 | 30 | 61% | 30.15 | 1020.9 | |||||
| Date | Time (est) | 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) | |||||||||||||||