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 | 00:52 | Calm | 10.00 | Mostly Cloudy | FEW085 BKN140 BKN250 | 73 | 71.1 | 94% | 29.9 | 1012.0 | |||||||
| 12 | 23:52 | SW 5 | 10.00 | Overcast | FEW070 SCT085 BKN110 OVC180 | 73.9 | 72 | 94% | 29.92 | 1012.7 | |||||||
| 12 | 22:52 | S 8 | 10.00 | Overcast | FEW040 BKN090 BKN180 OVC250 | 73.9 | 72 | 94% | 29.9 | 1012.1 | |||||||
| 12 | 21:52 | S 3 | 10.00 | Overcast | FEW044CB BKN100 OVC200 | 72 | 71.1 | 97% | 29.88 | 1011.5 | |||||||
| 12 | 20:52 | SW 8 | 10.00 | Mostly Cloudy | FEW027CB BKN055 BKN120 | 72 | 70 | 94% | 29.85 | 1010.6 | |||||||
| 12 | 19:52 | SE 7 | 10.00 | Mostly Cloudy | FEW019CB SCT055 BKN090 BKN150 | 72 | 70 | 93.9 | 72 | 94% | 29.83 | 1009.7 | 0.26 | 0.29 | |||
| 12 | 18:52 | W 28 G 52 | 2.00 | Thunderstorm Rain and Windy | SCT023 BKN046CB OVC090 | 82.9 | 75 | 77% | 90 | 29.81 | 1009.0 | ||||||
| 12 | 17:52 | S 5 | 10.00 | Mostly Cloudy | FEW019 SCT055CB BKN120 | 82.9 | 75 | 77% | 90 | 29.78 | 1008.0 | 0.01 | |||||
| 12 | 16:52 | E 5 | 7.00 | Mostly Cloudy | SCT055CB BKN120 | 82.9 | 73.9 | 74% | 89 | 29.78 | 1008.1 | 0.02 | 0.02 | ||||
| 12 | 15:52 | SW 6 | 10.00 | Mostly Cloudy | BKN055CB BKN120 | 91.9 | 71.1 | 51% | 99 | 29.79 | 1008.3 | ||||||
| 12 | 14:52 | SW 7 | 10.00 | Mostly Cloudy | SCT065 BKN080 | 93 | 70 | 47% | 99 | 29.79 | 1008.5 | ||||||
| 12 | 13:52 | NW 10 | 10.00 | Mostly Cloudy | SCT060 BKN120 | 91.9 | 68 | 93.9 | 73.9 | 46% | 96 | 29.81 | 1008.9 | ||||
| 12 | 12:52 | Vrbl 7 | 10.00 | Partly Cloudy | FEW050 SCT080 SCT250 | 91.9 | 69.1 | 47% | 97 | 29.81 | 1009.1 | ||||||
| 12 | 11:52 | Vrbl 7 | 10.00 | Mostly Cloudy | FEW050 BKN080 BKN250 | 91.9 | 70 | 49% | 98 | 29.81 | 1009.1 | ||||||
| 12 | 10:52 | S 9 | 10.00 | A Few Clouds | FEW090 FEW250 | 88 | 72 | 59% | 95 | 29.81 | 1009.1 | ||||||
| 12 | 09:52 | S 9 | 10.00 | A Few Clouds | FEW090 FEW250 | 84.9 | 72 | 65% | 91 | 29.82 | 1009.3 | ||||||
| 12 | 08:52 | SW 12 | 10.00 | A Few Clouds | FEW090 FEW250 | 81 | 71.1 | 72% | 85 | 29.82 | 1009.5 | ||||||
| 12 | 07:52 | S 7 | 10.00 | A Few Clouds | FEW140 FEW250 | 73.9 | 69.1 | 73.9 | 69.1 | 85% | 29.83 | 1009.8 | |||||
| 12 | 06:52 | S 5 | 10.00 | A Few Clouds | FEW170 FEW250 | 73 | 68 | 84% | 29.83 | 1009.8 | |||||||
| 12 | 05:52 | S 5 | 10.00 | Fair | CLR | 70 | 66.9 | 90% | 29.83 | 1009.7 | |||||||
| 12 | 04:52 | S 3 | 10.00 | A Few Clouds | FEW120 | 70 | 68 | 93% | 29.83 | 1009.7 | |||||||
| 12 | 03:52 | Calm | 10.00 | Partly Cloudy | SCT110 | 70 | 68 | 93% | 29.84 | 1009.9 | |||||||
| 12 | 02:52 | S 3 | 10.00 | Partly Cloudy | FEW080 SCT230 | 70 | 68 | 93% | 29.83 | 1009.9 | |||||||
| 12 | 01:52 | Calm | 10.00 | Partly Cloudy | FEW080 SCT230 | 70 | 69.1 | 82 | 69.1 | 97% | 29.84 | 1010.1 | 0.19 | ||||
| 12 | 00:52 | Calm | 10.00 | Mostly Cloudy | BKN230 | 71.1 | 70 | 96% | 29.85 | 1010.3 | |||||||
| 11 | 23:52 | Calm | 10.00 | Overcast | OVC150 | 72 | 71.1 | 97% | 29.84 | 1010.1 | |||||||
| 11 | 22:52 | S 3 | 10.00 | Overcast | OVC200 | 72 | 70 | 94% | 29.85 | 1010.5 | 0.19 | ||||||
| 11 | 21:52 | Calm | 10.00 | Light Rain | SCT045CB OVC100 | 73 | 70 | 90% | 29.85 | 1010.5 | 0.04 | ||||||
| 11 | 20:52 | S 6 | 10.00 | Light Rain | FEW028 BKN040CB OVC080 | 72 | 71.1 | 97% | 29.86 | 1010.7 | 0.15 | ||||||
| 11 | 19:52 | W 28 G 51 | 6.00 | Thunderstorm Light Rain Squalls and Windy | BKN040CB BKN080 OVC250 | 82.9 | 64.9 | 93.9 | 82.9 | 55% | 85 | 29.84 | 1010.2 | ||||
| 11 | 18:52 | SW 7 | 10.00 | Mostly Cloudy | FEW050 BKN250 | 91.9 | 71.1 | 51% | 99 | 29.78 | 1008.1 | ||||||
| 11 | 17:52 | SW 8 | 10.00 | Mostly Cloudy | FEW050 BKN250 | 93.9 | 72 | 49% | 102 | 29.79 | 1008.3 | ||||||
| 11 | 16:52 | SW 10 | 10.00 | Overcast | FEW050 OVC250 | 93 | 72 | 50% | 101 | 29.8 | 1008.7 | ||||||
| 11 | 15:52 | W 10 | 10.00 | Overcast | FEW048 OVC250 | 93 | 71.1 | 49% | 100 | 29.81 | 1009.1 | ||||||
| 11 | 14:52 | SW 9 | 10.00 | Mostly Cloudy | SCT048 BKN250 | 93.9 | 72 | 49% | 102 | 29.83 | 1009.7 | ||||||
| 11 | 13:52 | W 9 G 20 | 10.00 | Mostly Cloudy | SCT048 BKN250 | 93 | 72 | 93 | 79 | 50% | 101 | 29.84 | 1010.2 | ||||
| 11 | 12:52 | W 9 | 10.00 | Mostly Cloudy | SCT048 BKN250 | 91 | 72 | 54% | 99 | 29.85 | 1010.5 | ||||||
| 11 | 11:52 | W 7 G 17 | 10.00 | Mostly Cloudy | SCT044 BKN250 | 90 | 72 | 56% | 97 | 29.87 | 1010.9 | ||||||
| 11 | 10:52 | W 6 | 10.00 | Mostly Cloudy | FEW038 FEW130 BKN250 | 89.1 | 73 | 59% | 97 | 29.87 | 1011.0 | ||||||
| 11 | 09:52 | Vrbl 6 | 10.00 | Mostly Cloudy | FEW050 FEW160 BKN250 | 86 | 72 | 63% | 92 | 29.88 | 1011.4 | ||||||
| 11 | 08:52 | Calm | 10.00 | Mostly Cloudy | FEW140 BKN230 | 84.9 | 72 | 65% | 91 | 29.89 | 1011.6 | ||||||
| 11 | 07:52 | SW 3 | 10.00 | Partly Cloudy | FEW140 SCT230 | 79 | 72 | 79 | 72 | 79% | 82 | 29.89 | 1011.6 | ||||
| 11 | 06:52 | Vrbl 6 | 10.00 | Mostly Cloudy | SCT140 BKN230 | 73.9 | 71.1 | 91% | 29.86 | 1011.0 | |||||||
| 11 | 05:52 | S 7 | 10.00 | Mostly Cloudy | SCT140 BKN250 | 73 | 71.1 | 94% | 29.83 | 1009.9 | |||||||
| 11 | 04:52 | S 3 | 10.00 | Mostly Cloudy | SCT140 BKN250 | 72 | 71.1 | 97% | 29.83 | 1009.9 | |||||||
| 11 | 03:52 | Calm | 10.00 | Fair | CLR | 73 | 71.1 | 94% | 29.84 | 1010.0 | |||||||
| 11 | 02:52 | S 3 | 10.00 | Fair | CLR | 73 | 71.1 | 94% | 29.84 | 1010.1 | |||||||
| 11 | 01:52 | S 3 | 10.00 | Partly Cloudy | SCT080 | 73.9 | 72 | 81 | 73 | 94% | 29.85 | 1010.3 | |||||
| 11 | 00:52 | S 5 | 10.00 | A Few Clouds | FEW060 | 73.9 | 72 | 94% | 29.86 | 1010.6 | |||||||
| 10 | 23:52 | S 6 | 10.00 | Fair | CLR | 75.9 | 73 | 91% | 76 | 29.86 | 1010.6 | ||||||
| 10 | 22:52 | S 8 | 10.00 | Fair | CLR | 75.9 | 73 | 91% | 76 | 29.87 | 1011.2 | ||||||
| 10 | 21:52 | S 7 | 10.00 | Fair | CLR | 78.1 | 73.9 | 87% | 81 | 29.85 | 1010.6 | ||||||
| 10 | 20:52 | S 6 | 10.00 | Partly Cloudy | FEW050 FEW100 SCT200 | 78.1 | 73.9 | 87% | 81 | 29.84 | 1010.1 | ||||||
| 10 | 19:52 | S 7 | 10.00 | Partly Cloudy | FEW050 SCT100 SCT200 | 81 | 73.9 | 88 | 71.1 | 79% | 86 | 29.83 | 1009.8 | 0.34 | |||
| 10 | 18:52 | S 7 | 10.00 | Partly Cloudy | FEW045 FEW100 SCT200 | 80.1 | 73.9 | 82% | 85 | 29.82 | 1009.5 | ||||||
| 10 | 17:52 | S 7 | 10.00 | Partly Cloudy | FEW045 SCT100 SCT200 | 81 | 73.9 | 79% | 86 | 29.83 | 1009.7 | ||||||
| 10 | 16:52 | NE 3 | 10.00 | Mostly Cloudy | FEW044 BKN100 BKN250 | 75.9 | 71.1 | 85% | 76 | 29.85 | 1010.5 | 0.19 | 0.34 | ||||
| 10 | 15:52 | W 7 G 21 | 0.75 | Heavy Rain Fog/Mist | BKN019 OVC030 | 71.1 | 70 | 96% | 29.89 | 1011.8 | 0.15 | ||||||
| 10 | 14:52 | SW 13 G 21 | 10.00 | Mostly Cloudy | SCT030 BKN080 BKN250 | 84 | 73 | 70% | 90 | 29.87 | 1011.2 | ||||||
| 10 | 13:52 | S 14 G 24 | 10.00 | Mostly Cloudy | FEW080 BKN140 BKN250 | 86 | 73 | 87.1 | 71.1 | 65% | 93 | 29.87 | 1011.0 | 0.01 | |||
| 10 | 12:52 | SW 14 | 10.00 | Mostly Cloudy | FEW020 BKN110 BKN250 | 84 | 73 | 70% | 90 | 29.91 | 1012.4 | ||||||
| 10 | 11:52 | S 13 G 23 | 10.00 | Mostly Cloudy | SCT015 BKN070 BKN250 | 81 | 72 | 74% | 85 | 29.92 | 1012.8 | ||||||
| 10 | 10:52 | SW 14 G 21 | 7.00 | Mostly Cloudy | BKN011 BKN075 | 78.1 | 72 | 82% | 80 | 29.94 | 1013.6 | 0.01 | |||||
| 10 | 09:52 | SW 10 | 6.00 | Fog/Mist | BKN009 BKN075 | 73.9 | 71.1 | 91% | 29.96 | 1014.2 | |||||||
| 10 | 08:52 | S 8 | 5.00 | Light Rain Fog/Mist | BKN007 OVC050 | 72 | 70 | 94% | 29.98 | 1014.7 | 0.01 | ||||||
| 10 | 07:52 | S 8 | 5.00 | Light Rain Fog/Mist | FEW006 SCT029 OVC050 | 71.1 | 70 | 73.9 | 69.1 | 96% | 29.97 | 1014.5 | 0.04 | 0.22 | |||
| 10 | 06:52 | S 9 | 4.00 | Fog/Mist | SCT029 OVC048 | 70 | 68 | 93% | 29.97 | 1014.7 | 0.18 | ||||||
| 10 | 05:52 | SW 8 | 10.00 | Overcast | BKN080 OVC130 | 72 | 64 | 76% | 29.97 | 1014.7 | |||||||
| 10 | 04:52 | S 7 | 10.00 | Overcast | BKN080 OVC130 | 72 | 63 | 73% | 29.96 | 1014.4 | |||||||
| 10 | 03:52 | S 7 | 10.00 | Overcast | SCT170 OVC190 | 72 | 63 | 73% | 29.98 | 1014.9 | |||||||
| 10 | 02:52 | S 7 | 10.00 | Overcast | FEW070 OVC210 | 73 | 63 | 71% | 30 | 1015.6 | |||||||
| 10 | 01:52 | S 8 | 10.00 | Overcast | OVC190 | 73.9 | 63 | 78.1 | 73.9 | 69% | 30.02 | 1016.2 | |||||
| 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) | |||||||||||||||