Weather observations for the past three days for
Washington/Dulles International Airport, DC
| Date | Time (est) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Temperature (ºC) | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | Pressure | Precipitation (cm) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 10 | 15:52 | N 9 | 3.22 | Rain Fog/Mist | BKN004 OVC011 | 8.3 | 7.8 | 97% | 7 | 76.05 | 1013.9 | 0.64 | 1.7 | ||||
| 10 | 14:52 | NE 13 | 3.22 | Heavy Rain Fog/Mist | OVC004 | 8.3 | 7.8 | 97% | 6 | 76.1 | 1014.7 | 0.66 | |||||
| 10 | 13:52 | NE 9 | 4.83 | Light Rain Fog/Mist | BKN006 OVC020 | 8.3 | 7.8 | 97% | 7 | 76.15 | 1015.3 | 0.41 | |||||
| 10 | 12:52 | N 9 | 3.22 | Rain Fog/Mist | OVC006 | 8.3 | 7.8 | 10 | 8.3 | 97% | 7 | 76.3 | 1017.1 | 0.28 | 1.24 | ||
| 10 | 11:52 | E 7 | 4.83 | Light Rain Fog/Mist | BKN009 OVC018 | 8.3 | 7.2 | 93% | 7 | 76.4 | 1018.5 | 0.33 | |||||
| 10 | 10:52 | NE 9 | 3.22 | Rain Fog/Mist | SCT017 BKN023 OVC060 | 8.3 | 7.2 | 93% | 7 | 76.53 | 1020.2 | 0.36 | |||||
| 10 | 09:52 | NE 11 | 4.83 | Rain Fog/Mist | FEW010 BKN027 OVC075 | 8.9 | 7.8 | 93% | 7 | 76.58 | 1021.1 | 0.23 | 0.28 | ||||
| 10 | 08:52 | N 9 | 12.87 | Light Rain | SCT070 OVC100 | 8.9 | 7.2 | 89% | 8 | 76.61 | 1021.4 | 0.05 | |||||
| 10 | 07:52 | Calm | 16.09 | Light Rain | BKN070 OVC100 | 8.9 | 7.2 | 89% | 76.63 | 1021.5 | |||||||
| 10 | 06:52 | NE 11 | 16.09 | Overcast | BKN075 OVC150 | 9.4 | 7.2 | 10.6 | 7.8 | 86% | 8 | 76.63 | 1021.7 | ||||
| 10 | 05:52 | N 9 | 16.09 | Mostly Cloudy | SCT080 BKN110 BKN180 | 10 | 7.2 | 83% | 9 | 76.61 | 1021.5 | ||||||
| 10 | 04:52 | NE 9 | 16.09 | Overcast | SCT075 OVC180 | 10.6 | 9.4 | 92% | 76.61 | 1021.2 | |||||||
| 10 | 03:52 | N 7 | 14.48 | Overcast | FEW120 OVC180 | 10 | 9.4 | 96% | 9 | 76.58 | 1021.0 | ||||||
| 10 | 02:52 | N 6 | 8.05 | Fog/Mist | FEW012 SCT120 OVC200 | 9.4 | 8.9 | 97% | 76.63 | 1021.5 | |||||||
| 10 | 01:52 | SW 6 | 8.05 | Fog/Mist | FEW013 OVC200 | 8.9 | 8.9 | 100% | 76.61 | 1021.3 | |||||||
| 10 | 00:52 | Calm | 9.66 | Fog/Mist | OVC200 | 9.4 | 9.4 | 12.2 | 9.4 | 100% | 76.53 | 1020.4 | |||||
| 09 | 23:52 | Calm | 12.87 | Overcast | FEW120 OVC200 | 11.1 | 10.6 | 97% | 76.5 | 1020.0 | |||||||
| 09 | 22:52 | S 6 | 12.87 | Overcast | FEW120 OVC200 | 11.7 | 10.6 | 93% | 76.5 | 1020.0 | |||||||
| 09 | 21:52 | SW 13 | 12.87 | Overcast | SCT080 OVC120 | 12.2 | 10.6 | 90% | 76.5 | 1019.8 | |||||||
| 09 | 20:52 | S 17 | 12.87 | Overcast | BKN080 OVC120 | 11.7 | 10.6 | 93% | 76.48 | 1019.6 | |||||||
| 09 | 19:52 | S 19 | 16.09 | Overcast | BKN080 OVC110 | 11.7 | 10 | 89% | 76.45 | 1019.3 | |||||||
| 09 | 18:52 | S 17 | 16.09 | Overcast | OVC110 | 11.7 | 10 | 12.2 | 8.9 | 89% | 76.43 | 1019.2 | 0.03 | ||||
| 09 | 17:52 | S 22 G 39 | 16.09 | Overcast | SCT016 OVC100 | 11.7 | 9.4 | 86% | 76.38 | 1018.2 | |||||||
| 09 | 16:52 | S 7 | 14.48 | Overcast | BKN017 OVC090 | 10.6 | 8.9 | 89% | 76.4 | 1018.7 | |||||||
| 09 | 15:52 | S 11 | 12.87 | Light Rain | SCT012 BKN045 OVC110 | 10.6 | 8.9 | 89% | 76.38 | 1018.5 | 0.03 | 0.03 | |||||
| 09 | 14:52 | S 17 | 12.87 | Overcast | BKN009 OVC075 | 10 | 8.9 | 93% | 8 | 76.38 | 1018.4 | ||||||
| 09 | 13:52 | S 15 | 11.27 | Overcast | OVC010 | 9.4 | 7.8 | 90% | 7 | 76.43 | 1018.9 | ||||||
| 09 | 12:52 | S 15 | 11.27 | Light Rain | OVC011 | 8.9 | 6.1 | 8.9 | 4.4 | 83% | 7 | 76.48 | 1019.8 | ||||
| 09 | 11:52 | S 13 | 16.09 | Overcast | OVC014 | 7.8 | 5 | 83% | 6 | 76.53 | 1020.4 | ||||||
| 09 | 10:52 | S 17 | 16.09 | Overcast | OVC019 | 7.8 | 4.4 | 79% | 5 | 76.66 | 1022.2 | ||||||
| 09 | 09:52 | S 11 | 12.87 | Overcast | FEW022 BKN027 OVC033 | 7.2 | 5 | 86% | 5 | 76.71 | 1022.8 | ||||||
| 09 | 08:52 | S 9 | 11.27 | Overcast | OVC034 | 6.7 | 4.4 | 85% | 5 | 76.76 | 1023.3 | ||||||
| 09 | 07:52 | S 13 | 8.05 | Fog/Mist | BKN037 OVC090 | 5.6 | 4.4 | 92% | 3 | 76.76 | 1023.5 | ||||||
| 09 | 06:52 | S 11 | 9.66 | Fog/Mist | BKN038 BKN140 | 4.4 | 3.3 | 7.2 | 3.9 | 93% | 2 | 76.84 | 1024.3 | ||||
| 09 | 05:52 | SE 13 | 12.87 | A Few Clouds | FEW150 | 5 | 3.3 | 89% | 2 | 76.78 | 1023.7 | ||||||
| 09 | 04:52 | S 9 | 16.09 | Fair | CLR | 5.6 | 3.9 | 89% | 4 | 76.84 | 1024.4 | ||||||
| 09 | 03:52 | S 13 | 16.09 | A Few Clouds | FEW150 | 5.6 | 3.3 | 85% | 3 | 76.84 | 1024.5 | ||||||
| 09 | 02:52 | SE 7 | 16.09 | Partly Cloudy | SCT150 | 5 | 2.2 | 82% | 4 | 76.84 | 1024.4 | ||||||
| 09 | 01:52 | S 9 | 16.09 | Mostly Cloudy | SCT150 BKN200 | 6.7 | 2.2 | 73% | 5 | 76.81 | 1024.1 | ||||||
| 09 | 00:52 | SW 13 | 16.09 | Mostly Cloudy | BKN150 | 7.2 | 2.2 | 8.9 | 6.1 | 71% | 5 | 76.84 | 1024.2 | ||||
| 08 | 23:52 | S 9 | 16.09 | Partly Cloudy | SCT150 | 7.2 | 2.2 | 71% | 6 | 76.81 | 1023.9 | ||||||
| 08 | 22:52 | S 9 | 16.09 | Partly Cloudy | SCT150 | 6.7 | 2.2 | 73% | 5 | 76.86 | 1024.7 | ||||||
| 08 | 21:52 | S 7 | 16.09 | A Few Clouds | FEW150 | 6.7 | 2.2 | 73% | 6 | 76.84 | 1024.6 | ||||||
| 08 | 20:52 | S 9 | 16.09 | A Few Clouds | FEW150 FEW250 | 7.8 | 2.8 | 71% | 6 | 76.84 | 1024.6 | ||||||
| 08 | 19:52 | SE 7 | 16.09 | Mostly Cloudy | FEW150 BKN250 | 7.8 | 2.8 | 71% | 7 | 76.84 | 1024.5 | ||||||
| 08 | 18:52 | S 7 | 16.09 | Mostly Cloudy | SCT150 BKN250 | 8.9 | 2.8 | 13.9 | 8.3 | 66% | 8 | 76.84 | 1024.6 | ||||
| 08 | 17:52 | SE 9 | 16.09 | Mostly Cloudy | SCT150 BKN250 | 9.4 | 2.8 | 64% | 8 | 76.78 | 1024.0 | ||||||
| 08 | 16:52 | S 7 | 16.09 | Mostly Cloudy | SCT150 BKN250 | 11.7 | 2.8 | 55% | 76.76 | 1023.3 | |||||||
| 08 | 15:52 | Vrbl 9 | 16.09 | Mostly Cloudy | FEW140 BKN250 | 13.9 | 3.3 | 49% | 76.73 | 1023.3 | |||||||
| 08 | 14:52 | Vrbl 9 | 16.09 | Mostly Cloudy | BKN140 BKN250 | 13.3 | 3.3 | 51% | 76.71 | 1022.8 | |||||||
| 08 | 13:52 | Vrbl 9 | 16.09 | Mostly Cloudy | BKN250 | 13.3 | 3.3 | 51% | 76.73 | 1023.0 | |||||||
| 08 | 12:52 | S 15 | 16.09 | Mostly Cloudy | BKN250 | 12.8 | 3.3 | 12.8 | -2.8 | 53% | 76.76 | 1023.4 | |||||
| 08 | 11:52 | Vrbl 9 | 16.09 | Mostly Cloudy | BKN250 | 12.2 | 3.3 | 55% | 76.78 | 1023.9 | |||||||
| 08 | 10:52 | Vrbl 7 | 16.09 | Mostly Cloudy | BKN250 | 10.6 | 3.3 | 61% | 76.84 | 1024.5 | |||||||
| 08 | 09:52 | Calm | 16.09 | Mostly Cloudy | BKN250 | 7.8 | 3.3 | 73% | 76.84 | 1024.4 | |||||||
| 08 | 08:52 | Calm | 14.48 | A Few Clouds | FEW250 | 2.8 | 1.7 | 93% | 76.76 | 1023.4 | |||||||
| 08 | 07:52 | Calm | 11.27 | Fair | CLR | -2.2 | -2.2 | 100% | 76.71 | 1022.8 | |||||||
| 08 | 06:52 | Calm | 16.09 | Fair | CLR | -1.7 | -2.2 | 2.8 | -2.2 | 96% | 76.63 | 1021.8 | |||||
| 08 | 05:52 | SE 6 | 11.27 | Fair | CLR | -1.7 | -1.7 | 100% | 76.58 | 1021.0 | |||||||
| 08 | 04:52 | S 9 | 16.09 | A Few Clouds | FEW250 | -1.1 | -1.7 | 96% | -4 | 76.56 | 1020.6 | ||||||
| 08 | 03:52 | Calm | 16.09 | A Few Clouds | FEW200 | -0.6 | -1.1 | 96% | 76.5 | 1020.1 | |||||||
| 08 | 02:52 | Calm | 16.09 | Fair | CLR | -0.6 | -0.6 | 100% | 76.43 | 1019.2 | |||||||
| 08 | 01:52 | Calm | 16.09 | Fair | CLR | 0.6 | 0 | 96% | 76.38 | 1018.4 | |||||||
| 08 | 00:52 | Calm | 16.09 | Fair | CLR | 2.2 | 1.1 | 10.6 | 1.7 | 93% | 76.33 | 1017.7 | |||||
| 07 | 23:52 | Calm | 16.09 | Fair | CLR | 3.3 | 1.7 | 89% | 76.33 | 1017.7 | |||||||
| 07 | 22:52 | N 9 | 16.09 | Fair | CLR | 6.7 | 2.2 | 73% | 5 | 76.3 | 1017.4 | ||||||
| 07 | 21:52 | N 9 | 16.09 | Fair | CLR | 8.9 | 3.3 | 68% | 8 | 76.28 | 1016.8 | ||||||
| 07 | 20:52 | Calm | 16.09 | Fair | CLR | 10 | 2.8 | 61% | 76.23 | 1016.5 | |||||||
| 07 | 19:52 | NW 7 | 16.09 | Fair | CLR | 9.4 | 2.8 | 64% | 9 | 76.23 | 1016.5 | ||||||
| 07 | 18:52 | NW 9 | 16.09 | Fair | CLR | 10 | 3.3 | 16.7 | 10 | 63% | 9 | 76.17 | 1015.5 | ||||
| 07 | 17:52 | NW 19 | 16.09 | Fair | CLR | 11.7 | 3.3 | 57% | 76.07 | 1014.2 | |||||||
| 07 | 16:52 | NW 17 | 16.09 | A Few Clouds | FEW065 | 12.8 | 2.8 | 51% | 76 | 1013.1 | |||||||
| Date | Time (est) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºC) | Pressure | Precipitation (cm) | |||||||||||||||