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. | ||||||||||||||||
| 02 | 10:52 | SE 6 | 10.00 | Partly Cloudy | FEW120 SCT250 | 63 | 35.1 | 35% | 30.29 | 1025.8 | |||||||
| 02 | 09:52 | Vrbl 5 | 10.00 | A Few Clouds | FEW120 FEW250 | 60.1 | 39 | 46% | 30.3 | 1026.0 | |||||||
| 02 | 08:52 | Calm | 10.00 | A Few Clouds | FEW120 FEW250 | 54 | 39 | 57% | 30.29 | 1025.9 | |||||||
| 02 | 07:52 | Calm | 10.00 | A Few Clouds | FEW120 FEW250 | 46.9 | 41 | 80% | 30.28 | 1025.4 | |||||||
| 02 | 06:52 | Calm | 10.00 | Partly Cloudy | SCT120 SCT250 | 37.9 | 36 | 45 | 37.9 | 93% | 30.27 | 1025.1 | |||||
| 02 | 05:52 | Calm | 10.00 | Mostly Cloudy | BKN130 BKN250 | 39.9 | 37 | 89% | 30.24 | 1024.0 | |||||||
| 02 | 04:52 | Calm | 10.00 | Mostly Cloudy | BKN130 BKN250 | 41 | 37 | 86% | 30.23 | 1023.5 | |||||||
| 02 | 03:52 | Calm | 10.00 | Mostly Cloudy | FEW110 SCT140 SCT180 BKN250 | 42.1 | 37.9 | 85% | 30.21 | 1022.9 | |||||||
| 02 | 02:52 | Calm | 10.00 | Overcast | BKN140 OVC180 | 45 | 37.9 | 77% | 30.2 | 1022.6 | |||||||
| 02 | 01:52 | SW 5 | 10.00 | Overcast | BKN150 OVC250 | 43 | 37.9 | 82% | 41 | 30.19 | 1022.3 | ||||||
| 02 | 01:52 | Calm | 10.00 | Overcast | SCT160 OVC250 | 43 | 37.9 | 55 | 41 | 82% | 30.19 | 1022.2 | |||||
| 02 | 00:52 | Calm | 10.00 | Overcast | OVC180 | 45 | 36 | 71% | 30.17 | 1021.8 | |||||||
| 01 | 23:52 | Calm | 10.00 | Mostly Cloudy | FEW170 SCT200 BKN250 | 44.1 | 36 | 73% | 30.16 | 1021.4 | |||||||
| 01 | 22:52 | Calm | 10.00 | Mostly Cloudy | BKN250 | 45 | 35.1 | 68% | 30.16 | 1021.1 | |||||||
| 01 | 21:52 | Calm | 10.00 | Mostly Cloudy | BKN250 | 48 | 34 | 58% | 30.13 | 1020.3 | |||||||
| 01 | 20:52 | NW 5 | 10.00 | Mostly Cloudy | BKN250 | 53.1 | 33.1 | 47% | 30.11 | 1019.6 | |||||||
| 01 | 19:52 | NW 6 | 10.00 | Mostly Cloudy | FEW120 BKN200 | 55.9 | 34 | 64 | 54 | 44% | 30.1 | 1019.2 | |||||
| 01 | 18:52 | W 5 | 10.00 | Mostly Cloudy | FEW070 BKN250 | 55.9 | 34 | 44% | 30.07 | 1018.4 | |||||||
| 01 | 17:52 | W 6 | 10.00 | Mostly Cloudy | FEW070 BKN250 | 59 | 34 | 39% | 30.05 | 1017.7 | |||||||
| 01 | 16:52 | NW 8 | 10.00 | Mostly Cloudy | SCT070 BKN250 | 63 | 34 | 34% | 30.04 | 1017.0 | |||||||
| 01 | 15:52 | NW 9 | 10.00 | Mostly Cloudy | SCT065 BKN250 | 64 | 34 | 33% | 30.03 | 1016.9 | |||||||
| 01 | 14:52 | NW 14 | 10.00 | Mostly Cloudy | BKN060 BKN250 | 62.1 | 35.1 | 37% | 30.03 | 1016.8 | |||||||
| 01 | 13:52 | NW 12 G 18 | 9.00 | Mostly Cloudy | SCT060 BKN250 | 63 | 36 | 64 | 39.9 | 37% | 30.04 | 1017.1 | |||||
| 01 | 11:52 | NW 18 G 26 | 10.00 | Partly Cloudy | FEW050 FEW080 SCT250 | 60.1 | 33.1 | 36% | 30.06 | 1017.8 | |||||||
| 01 | 10:52 | W 17 G 24 | 10.00 | Partly Cloudy | FEW080 SCT250 | 57.9 | 34 | 41% | 30.06 | 1017.8 | |||||||
| 01 | 09:52 | S 6 | 10.00 | Mostly Cloudy | BKN250 | 52 | 36 | 55% | 30.06 | 1017.8 | |||||||
| 01 | 08:52 | S 6 | 10.00 | A Few Clouds | FEW080 FEW250 | 44.1 | 35.1 | 71% | 41 | 30.03 | 1017.0 | ||||||
| 01 | 07:52 | S 5 | 10.00 | A Few Clouds | FEW080 FEW250 | 39.9 | 33.1 | 51.1 | 39.9 | 77% | 37 | 30.01 | 1016.2 | ||||
| 01 | 06:52 | S 5 | 10.00 | A Few Clouds | FEW250 | 41 | 33.1 | 73% | 38 | 29.98 | 1015.1 | ||||||
| 01 | 05:52 | SW 7 | 10.00 | A Few Clouds | FEW250 | 43 | 32 | 65% | 39 | 29.95 | 1014.3 | ||||||
| 01 | 04:52 | W 6 | 10.00 | Fair | CLR | 48 | 32 | 54% | 46 | 29.94 | 1013.8 | ||||||
| 01 | 03:52 | S 5 | 10.00 | Fair | CLR | 46.9 | 32 | 56% | 45 | 29.93 | 1013.4 | ||||||
| 01 | 02:52 | W 12 | 10.00 | A Few Clouds | FEW060 | 50 | 33.1 | 52% | 46 | 29.91 | 1012.8 | ||||||
| 01 | 01:52 | W 9 | 10.00 | A Few Clouds | FEW060 | 51.1 | 34 | 55 | 50 | 52% | 29.89 | 1012.1 | |||||
| 31 | 23:52 | W 8 | 10.00 | Partly Cloudy | SCT060 | 50 | 35.1 | 57% | 47 | 29.87 | 1011.4 | ||||||
| 31 | 22:52 | W 8 | 10.00 | Partly Cloudy | SCT060 | 54 | 33.1 | 45% | 29.86 | 1011.1 | |||||||
| 31 | 21:52 | W 17 G 23 | 10.00 | Mostly Cloudy | BKN060 | 54 | 32 | 43% | 29.83 | 1010.2 | |||||||
| 31 | 20:52 | W 9 | 10.00 | Mostly Cloudy | BKN065 | 55 | 32 | 42% | 29.82 | 1009.9 | |||||||
| 31 | 19:52 | W 8 | 10.00 | Mostly Cloudy | BKN070 | 55 | 32 | 61 | 54 | 42% | 29.81 | 1009.3 | |||||
| 31 | 18:52 | W 10 G 21 | 10.00 | Overcast | OVC070 | 55.9 | 30 | 37% | 29.78 | 1008.5 | |||||||
| 31 | 17:52 | W 15 G 24 | 10.00 | Partly Cloudy | SCT070 | 55.9 | 30 | 37% | 29.76 | 1007.8 | |||||||
| 31 | 16:52 | W 28 G 41 | 10.00 | A Few Clouds and Windy | FEW070 | 57.9 | 30.9 | 36% | 29.72 | 1006.4 | |||||||
| 31 | 15:52 | W 21 G 33 | 10.00 | A Few Clouds and Breezy | FEW065 | 60.1 | 30 | 32% | 29.69 | 1005.1 | |||||||
| 31 | 14:52 | W 24 G 36 | 10.00 | A Few Clouds and Breezy | FEW065 | 60.1 | 30.9 | 33% | 29.66 | 1004.4 | |||||||
| 31 | 13:52 | W 24 G 37 | 10.00 | Partly Cloudy and Breezy | FEW065 SCT200 | 61 | 30.9 | 61 | 50 | 32% | 29.65 | 1003.8 | |||||
| 31 | 12:52 | NW 28 G 44 | 10.00 | Partly Cloudy and Windy | FEW065 FEW080 SCT250 | 60.1 | 30.9 | 33% | 29.65 | 1003.8 | |||||||
| 31 | 11:52 | NW 23 G 37 | 10.00 | Mostly Cloudy and Breezy | FEW060 SCT080 BKN250 | 57.9 | 32 | 38% | 29.65 | 1004.0 | |||||||
| 31 | 10:52 | W 22 G 37 | 10.00 | Partly Cloudy and Breezy | FEW055 SCT250 | 55.9 | 33.1 | 42% | 29.64 | 1003.8 | |||||||
| 31 | 09:52 | W 22 G 38 | 10.00 | A Few Clouds and Breezy | FEW055 FEW250 | 55 | 33.1 | 44% | 29.64 | 1003.8 | |||||||
| 31 | 08:52 | W 10 G 25 | 10.00 | A Few Clouds | FEW050 | 52 | 35.1 | 53% | 29.63 | 1003.5 | |||||||
| 31 | 07:52 | W 16 G 26 | 10.00 | Partly Cloudy | SCT042 | 50 | 35.1 | 54 | 48.9 | 57% | 45 | 29.61 | 1002.6 | ||||
| 31 | 06:52 | W 17 G 36 | 10.00 | Mostly Cloudy | BKN042 | 51.1 | 37 | 59% | 29.58 | 1001.5 | |||||||
| 31 | 04:52 | W 24 G 38 | 10.00 | Mostly Cloudy and Breezy | BKN045 | 53.1 | 37.9 | 57% | 29.52 | 999.6 | |||||||
| 31 | 03:52 | W 13 G 26 | 10.00 | Mostly Cloudy | BKN048 | 54 | 39.9 | 59% | 29.52 | 999.4 | |||||||
| 31 | 02:52 | W 13 G 22 | 10.00 | Mostly Cloudy | BKN048 | 53.1 | 39.9 | 61% | 29.51 | 999.0 | |||||||
| 31 | 01:52 | SW 7 | 10.00 | Partly Cloudy | SCT048 | 48.9 | 41 | 55.9 | 48 | 74% | 46 | 29.5 | 998.6 | ||||
| 31 | 00:52 | SW 6 | 10.00 | A Few Clouds | FEW050 | 51.1 | 41 | 69% | 29.5 | 998.7 | |||||||
| 30 | 23:52 | SW 7 | 10.00 | A Few Clouds | FEW055 | 51.1 | 41 | 69% | 29.49 | 998.4 | |||||||
| 30 | 21:52 | W 5 | 10.00 | A Few Clouds | FEW070 | 53.1 | 42.1 | 66% | 29.51 | 999.3 | |||||||
| 30 | 20:52 | W 7 | 10.00 | A Few Clouds | FEW050 | 55 | 43 | 64% | 29.51 | 999.3 | |||||||
| 30 | 19:52 | NW 3 | 10.00 | Partly Cloudy | FEW046 SCT070 | 55.9 | 46 | 66 | 55 | 70% | 29.51 | 999.0 | |||||
| 30 | 18:52 | NW 8 | 10.00 | Mostly Cloudy | BKN044 | 59 | 46.9 | 64% | 29.5 | 999.0 | |||||||
| 30 | 17:52 | W 7 | 10.00 | Partly Cloudy | SCT037 | 61 | 46 | 58% | 29.49 | 998.4 | |||||||
| 30 | 15:52 | SW 12 | 10.00 | Mostly Cloudy | SCT025 BKN037 BKN120 | 64 | 48 | 56% | 29.47 | 997.9 | |||||||
| 30 | 14:52 | S 10 | 10.00 | Mostly Cloudy | SCT022 BKN035 | 64.9 | 51.1 | 61% | 29.48 | 998.2 | |||||||
| 30 | 13:52 | S 10 G 18 | 10.00 | Mostly Cloudy | BKN016 BKN042 | 63 | 55 | 63 | 53.1 | 76% | 29.5 | 998.9 | 0.04 | ||||
| 30 | 12:52 | S 9 | 10.00 | Overcast | BKN015 OVC021 | 59 | 55 | 87% | 29.52 | 999.4 | |||||||
| 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) | |||||||||||||||