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. | ||||||||||||||||
| 23 | 07:52 | S 6 | 3.00 | Fog/Mist | BKN002 | 66.9 | 66 | 66.9 | 64 | 97% | 29.88 | 1011.5 | |||||
| 23 | 06:52 | Calm | 8.00 | Patches Fog | FEW010 FEW110 SCT250 | 64.9 | 64.9 | 100% | 29.85 | 1010.6 | |||||||
| 23 | 05:52 | Calm | 10.00 | Partly Cloudy | FEW012 SCT130 SCT250 | 64.9 | 64 | 97% | 29.83 | 1009.9 | |||||||
| 23 | 04:52 | Calm | 10.00 | Mostly Cloudy | FEW012 BKN130 BKN250 | 66 | 64.9 | 96% | 29.82 | 1009.5 | |||||||
| 23 | 03:52 | S 3 | 10.00 | Mostly Cloudy | FEW012 BKN110 BKN250 | 66 | 64.9 | 96% | 29.83 | 1009.8 | |||||||
| 23 | 02:52 | NW 5 | 10.00 | Mostly Cloudy | FEW006 SCT120 BKN250 | 66.9 | 66 | 97% | 29.83 | 1009.8 | |||||||
| 23 | 01:52 | S 5 | 10.00 | Overcast | SCT130 OVC250 | 66.9 | 66 | 75 | 66.9 | 97% | 29.84 | 1010.2 | 0.12 | ||||
| 23 | 00:52 | Calm | 10.00 | Overcast | FEW015 SCT075 OVC200 | 68 | 66 | 93% | 29.88 | 1011.6 | 0.01 | ||||||
| 22 | 23:52 | S 3 | 10.00 | Light Rain | SCT017 BKN028 OVC080 | 68 | 66 | 93% | 29.89 | 1011.7 | 0.01 | ||||||
| 22 | 22:52 | S 5 | 8.00 | Thunderstorm Light Rain | SCT008 BKN012CB OVC034 | 72 | 70 | 94% | 29.87 | 1011.3 | 0.1 | 0.1 | |||||
| 22 | 21:52 | S 5 | 10.00 | Light Rain | FEW036 SCT050 BKN100 OVC150 | 73 | 69.1 | 87% | 29.91 | 1012.4 | |||||||
| 22 | 20:52 | SE 10 G 22 | 10.00 | Overcast | FEW030 FEW050 SCT100 BKN150 OVC180 | 73.9 | 68 | 82% | 29.89 | 1011.8 | |||||||
| 22 | 19:52 | SE 10 | 10.00 | Mostly Cloudy | FEW030 FEW050 SCT100 BKN180 BKN250 | 75 | 68 | 80.1 | 75 | 79% | 76 | 29.88 | 1011.4 | ||||
| 22 | 18:52 | E 9 | 10.00 | Partly Cloudy | FEW024 FEW035 FEW050 SCT180 SCT250 | 75.9 | 68 | 77% | 77 | 29.88 | 1011.5 | ||||||
| 22 | 17:52 | E 9 | 10.00 | Mostly Cloudy | SCT026 BKN034 BKN043 BKN250 | 78.1 | 69.1 | 74% | 80 | 29.89 | 1012.0 | ||||||
| 22 | 16:52 | E 7 | 10.00 | Mostly Cloudy | FEW023 SCT028 BKN043 | 78.1 | 68 | 71% | 80 | 29.9 | 1012.2 | ||||||
| 22 | 15:52 | E 7 | 10.00 | Mostly Cloudy | FEW028 BKN045 BKN055 | 79 | 69.1 | 72% | 82 | 29.92 | 1013.0 | ||||||
| 22 | 14:52 | Vrbl 7 | 10.00 | Mostly Cloudy | SCT023 BKN030 BKN047 BKN250 | 78.1 | 68 | 71% | 80 | 29.95 | 1013.9 | ||||||
| 22 | 13:52 | E 6 | 10.00 | Mostly Cloudy | BKN019 BKN031 BKN055 | 77 | 68 | 78.1 | 70 | 74% | 79 | 29.98 | 1014.8 | ||||
| 22 | 12:52 | E 9 | 10.00 | Overcast | BKN019 BKN027 OVC033 | 73.9 | 68 | 82% | 29.99 | 1015.2 | |||||||
| 22 | 11:52 | E 7 | 10.00 | Mostly Cloudy | FEW015 BKN024 BKN033 | 73 | 68 | 84% | 30.01 | 1015.9 | |||||||
| 22 | 10:52 | E 7 | 10.00 | Mostly Cloudy | BKN017 | 73 | 68 | 84% | 30.01 | 1016.1 | |||||||
| 22 | 09:52 | E 6 | 10.00 | Mostly Cloudy | SCT013 BKN020 BKN130 | 73 | 66.9 | 81% | 30.02 | 1016.3 | |||||||
| 22 | 08:52 | E 8 | 10.00 | Mostly Cloudy | FEW015 SCT021 BKN040 BKN130 | 70 | 66 | 87% | 30.02 | 1016.4 | |||||||
| 22 | 07:52 | SE 5 | 10.00 | Mostly Cloudy | FEW008 FEW025 BKN041 BKN130 | 70 | 66 | 70 | 66 | 87% | 30.03 | 1016.8 | |||||
| 22 | 06:52 | Calm | 10.00 | Mostly Cloudy | FEW027 BKN041 BKN070 BKN130 | 69.1 | 66 | 90% | 30.02 | 1016.3 | |||||||
| 22 | 05:52 | S 5 | 10.00 | Overcast | FEW020 BKN042 OVC120 | 69.1 | 66 | 90% | 30.01 | 1015.9 | |||||||
| 22 | 04:52 | SE 3 | 10.00 | Overcast | FEW037 BKN044 OVC120 | 68 | 64 | 87% | 30 | 1015.7 | |||||||
| 22 | 03:52 | Calm | 10.00 | Overcast | OVC046 | 66.9 | 64 | 91% | 30.01 | 1016.0 | |||||||
| 22 | 02:52 | Calm | 10.00 | Mostly Cloudy | FEW048 BKN080 BKN250 | 66 | 62.1 | 87% | 30.01 | 1015.9 | |||||||
| 22 | 01:52 | Calm | 10.00 | Mostly Cloudy | SCT050 BKN250 | 66 | 62.1 | 75.9 | 66 | 87% | 30.02 | 1016.4 | |||||
| 22 | 00:52 | Calm | 10.00 | Mostly Cloudy | FEW100 BKN250 | 69.1 | 62.1 | 78% | 30.03 | 1016.7 | |||||||
| 21 | 23:52 | Calm | 10.00 | Mostly Cloudy | BKN065 BKN250 | 66.9 | 62.1 | 84% | 30.05 | 1017.2 | |||||||
| 21 | 22:52 | Calm | 10.00 | Mostly Cloudy | FEW100 FEW150 BKN250 | 66.9 | 59 | 76% | 30.06 | 1017.7 | |||||||
| 21 | 21:52 | Calm | 10.00 | Mostly Cloudy | SCT150 BKN250 | 66.9 | 60.1 | 79% | 30.06 | 1017.6 | |||||||
| 21 | 20:52 | Calm | 10.00 | Partly Cloudy | FEW120 SCT250 | 70 | 59 | 68% | 30.06 | 1017.8 | |||||||
| 21 | 19:52 | Calm | 10.00 | Mostly Cloudy | SCT120 BKN250 | 75 | 61 | 82 | 73.9 | 62% | 77 | 30.05 | 1017.2 | ||||
| 21 | 18:52 | Calm | 10.00 | Mostly Cloudy | SCT120 BKN250 | 75.9 | 55.9 | 50% | 78 | 30.05 | 1017.3 | ||||||
| 21 | 17:52 | NE 5 | 10.00 | Mostly Cloudy | SCT120 BKN250 | 77 | 52 | 42% | 78 | 30.04 | 1017.0 | ||||||
| 21 | 16:52 | NE 6 | 10.00 | Mostly Cloudy | BKN120 BKN250 | 80.1 | 54 | 41% | 80 | 30.02 | 1016.4 | ||||||
| 21 | 15:52 | Vrbl 6 | 10.00 | Mostly Cloudy | FEW120 BKN250 | 80.1 | 55 | 42% | 80 | 30.06 | 1017.5 | ||||||
| 21 | 14:52 | Vrbl 6 | 10.00 | Mostly Cloudy | FEW034 FEW120 BKN250 | 80.1 | 53.1 | 39% | 80 | 30.09 | 1018.6 | ||||||
| 21 | 13:52 | Vrbl 3 | 10.00 | Partly Cloudy | FEW044 FEW120 SCT250 | 78.1 | 54 | 79 | 66.9 | 43% | 79 | 30.1 | 1019.0 | ||||
| 21 | 12:52 | Vrbl 6 | 10.00 | Partly Cloudy | FEW030 FEW120 SCT250 | 77 | 55.9 | 48% | 79 | 30.11 | 1019.4 | ||||||
| 21 | 11:52 | W 5 | 10.00 | Mostly Cloudy | FEW025 FEW120 BKN250 | 75.9 | 57.9 | 54% | 78 | 30.13 | 1020.1 | ||||||
| 21 | 10:52 | N 7 | 10.00 | Mostly Cloudy | FEW025 FEW120 BKN250 | 73.9 | 57.9 | 57% | 30.14 | 1020.3 | |||||||
| 21 | 09:52 | N 7 | 10.00 | Mostly Cloudy | FEW028 SCT110 BKN250 | 71.1 | 60.1 | 68% | 30.13 | 1019.9 | |||||||
| 21 | 08:52 | N 8 | 10.00 | Mostly Cloudy | FEW030 SCT100 BKN250 | 69.1 | 59 | 70% | 30.12 | 1019.6 | |||||||
| 21 | 07:52 | N 8 | 10.00 | Partly Cloudy | FEW120 SCT250 | 66.9 | 59 | 69.1 | 64.9 | 76% | 30.12 | 1019.7 | |||||
| 21 | 06:52 | N 10 | 10.00 | A Few Clouds | FEW120 FEW250 | 64.9 | 57.9 | 78% | 30.11 | 1019.4 | |||||||
| 21 | 05:52 | N 9 | 10.00 | A Few Clouds | FEW120 | 66 | 59 | 78% | 30.09 | 1018.5 | |||||||
| 21 | 04:52 | N 8 | 10.00 | Fair | CLR | 66 | 60.1 | 81% | 30.07 | 1018.0 | |||||||
| 21 | 03:52 | N 6 | 10.00 | Fair | CLR | 66.9 | 61 | 81% | 30.07 | 1017.8 | |||||||
| 21 | 02:52 | N 7 | 10.00 | A Few Clouds | FEW085 | 68 | 62.1 | 81% | 30.05 | 1017.4 | |||||||
| 21 | 01:52 | N 8 | 10.00 | Overcast | OVC090 | 69.1 | 61 | 73 | 68 | 76% | 30.05 | 1017.4 | |||||
| 21 | 00:52 | N 13 | 10.00 | Overcast | OVC090 | 69.1 | 61 | 76% | 30.06 | 1017.6 | |||||||
| 20 | 23:52 | N 15 G 25 | 10.00 | Overcast | FEW070 OVC090 | 70 | 61 | 73% | 30.05 | 1017.3 | |||||||
| 20 | 22:52 | N 14 G 24 | 10.00 | Mostly Cloudy | FEW049 BKN100 | 70 | 61 | 73% | 30.05 | 1017.2 | |||||||
| 20 | 21:52 | N 14 | 10.00 | Mostly Cloudy | BKN150 | 72 | 61 | 68% | 30.04 | 1016.9 | |||||||
| 20 | 20:52 | N 10 | 10.00 | Mostly Cloudy | SCT120 BKN180 | 72 | 61 | 68% | 30.01 | 1016.0 | |||||||
| 20 | 18:52 | NW 14 G 23 | 10.00 | Mostly Cloudy | FEW090 BKN110 BKN250 | 79 | 68 | 69% | 81 | 29.94 | 1013.7 | ||||||
| 20 | 17:52 | NW 9 G 24 | 10.00 | Mostly Cloudy | FEW040 BKN110 BKN250 | 82 | 70 | 67% | 86 | 29.93 | 1013.0 | 0.16 | |||||
| 20 | 16:52 | SW 5 G 17 | 1.50 | Heavy Rain Fog/Mist | SCT018 BKN045 BKN120 BKN250 | 75 | 71.1 | 88% | 75 | 29.9 | 1012.1 | 0.48 | 0.48 | ||||
| 20 | 15:52 | NW 6 | 10.00 | Mostly Cloudy | SCT040 BKN050 BKN120 BKN250 | 81 | 69.1 | 67% | 84 | 29.88 | 1011.5 | ||||||
| 20 | 14:52 | SW 12 G 21 | 10.00 | Mostly Cloudy | FEW030 SCT075 BKN140 BKN250 | 87.1 | 73.9 | 65% | 95 | 29.89 | 1011.7 | ||||||
| 20 | 13:52 | SW 12 | 10.00 | Mostly Cloudy | FEW030 BKN140 BKN250 | 84 | 73 | 87.1 | 75 | 70% | 90 | 29.93 | 1013.3 | ||||
| 20 | 12:52 | S 10 | 10.00 | Mostly Cloudy | FEW018 SCT065 BKN110 BKN250 | 84.9 | 73 | 68% | 92 | 29.95 | 1013.9 | ||||||
| 20 | 11:52 | S 7 | 10.00 | Mostly Cloudy | FEW017 BKN060 BKN110 | 81 | 73.9 | 79% | 86 | 29.96 | 1014.2 | ||||||
| 20 | 10:52 | S 5 | 10.00 | Mostly Cloudy | FEW017 BKN060 BKN120 | 79 | 72 | 79% | 82 | 29.97 | 1014.4 | ||||||
| 20 | 09:52 | SE 3 | 10.00 | Overcast | OVC110 | 78.1 | 72 | 82% | 80 | 29.97 | 1014.5 | ||||||
| 20 | 08:52 | SE 5 | 10.00 | Overcast | OVC110 | 77 | 69.1 | 77% | 79 | 29.97 | 1014.4 | ||||||
| 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) | |||||||||||||||