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. | ||||||||||||||||
| 16 | 13:52 | N 7 | 16.09 | Overcast | OVC019 | 6.7 | 1.7 | 71% | 6 | 76.56 | 1020.6 | ||||||
| 16 | 12:52 | NW 15 | 16.09 | Overcast | OVC019 | 6.1 | 2.2 | 6.7 | 1.7 | 76% | 3 | 76.56 | 1020.7 | ||||
| 16 | 11:52 | Vrbl 7 | 16.09 | Overcast | OVC018 | 6.7 | 2.2 | 73% | 6 | 76.58 | 1021.1 | ||||||
| 16 | 10:52 | N 9 | 14.48 | Overcast | OVC015 | 5.6 | 1.7 | 76% | 4 | 76.56 | 1020.7 | ||||||
| 16 | 09:52 | N 9 | 11.27 | Overcast | BKN012 OVC017 | 3.3 | 1.1 | 86% | 1 | 76.56 | 1020.7 | ||||||
| 16 | 08:52 | N 13 | 9.66 | Fog/Mist | BKN011 OVC026 | 2.8 | 0.6 | 86% | -0 | 76.5 | 1020.2 | ||||||
| 16 | 07:52 | N 15 | 8.05 | Fog/Mist | SCT009 OVC018 | 2.2 | 0.6 | 89% | -1 | 76.45 | 1019.5 | ||||||
| 16 | 06:52 | N 20 | 9.66 | Fog/Mist | OVC008 | 1.7 | 0.6 | 2.8 | 1.7 | 93% | -3 | 76.38 | 1018.6 | ||||
| 16 | 05:52 | N 22 | 8.05 | Fog/Mist | OVC007 | 1.7 | 0.6 | 93% | -3 | 76.25 | 1016.9 | ||||||
| 16 | 04:52 | N 20 | 6.44 | Fog/Mist | OVC005 | 1.7 | 1.1 | 96% | -3 | 76.23 | 1016.3 | ||||||
| 16 | 03:52 | N 19 | 8.05 | Fog/Mist | OVC006 | 2.8 | 1.7 | 93% | -1 | 76.15 | 1015.5 | ||||||
| 16 | 02:52 | N 13 | 9.66 | Fog/Mist | OVC006 | 2.8 | 1.7 | 93% | -0 | 76.1 | 1014.8 | ||||||
| 16 | 01:52 | N 13 | 8.05 | Fog/Mist | OVC006 | 2.8 | 1.7 | 93% | -0 | 76.07 | 1014.3 | ||||||
| 16 | 00:52 | N 17 | 11.27 | Overcast | OVC006 | 2.8 | 1.7 | 5 | 2.8 | 93% | -1 | 76.02 | 1013.5 | 0.61 | |||
| 15 | 23:52 | NE 15 | 8.05 | Light Rain Fog/Mist | OVC005 | 3.3 | 2.2 | 93% | 0 | 76.05 | 1013.8 | 0.1 | |||||
| 15 | 22:52 | N 13 | 8.05 | Light Rain Fog/Mist | OVC005 | 3.9 | 2.8 | 93% | 1 | 76.07 | 1014.4 | 0.08 | |||||
| 15 | 21:52 | N 11 | 9.66 | Light Rain Fog/Mist | OVC004 | 3.9 | 3.3 | 96% | 1 | 76.05 | 1013.9 | 0.13 | 0.43 | ||||
| 15 | 20:52 | N 11 | 8.05 | Light Rain Fog/Mist | OVC005 | 4.4 | 3.9 | 97% | 2 | 76.05 | 1014.0 | 0.13 | |||||
| 15 | 19:52 | NE 7 | 4.02 | Light Rain Fog/Mist | OVC004 | 4.4 | 3.9 | 97% | 3 | 76.05 | 1013.9 | 0.18 | |||||
| 15 | 18:52 | NE 6 | 4.83 | Light Rain Fog/Mist | OVC004 | 5 | 4.4 | 6.7 | 4.4 | 96% | 76.05 | 1014.0 | 0.18 | 0.86 | |||
| 15 | 17:52 | Calm | 4.02 | Light Rain Fog/Mist | BKN005 OVC011 | 4.4 | 3.9 | 97% | 76.02 | 1013.8 | 0.18 | ||||||
| 15 | 16:52 | E 7 | 4.02 | Light Rain Fog/Mist | BKN006 OVC010 | 4.4 | 3.9 | 97% | 3 | 76.05 | 1014.0 | 0.2 | |||||
| 15 | 15:52 | Calm | 6.44 | Light Rain Fog/Mist | FEW009 BKN012 OVC030 | 5.6 | 5 | 96% | 76.07 | 1014.4 | 0.13 | 0.3 | |||||
| 15 | 14:52 | E 6 | 6.44 | Light Rain Fog/Mist | BKN016 BKN030 OVC040 | 5.6 | 4.4 | 92% | 76.12 | 1014.9 | 0.13 | ||||||
| 15 | 13:52 | SE 7 | 8.05 | Light Rain Fog/Mist | OVC040 | 5.6 | 3.9 | 89% | 4 | 76.17 | 1015.8 | 0.05 | |||||
| 15 | 12:52 | NW 7 | 11.27 | Light Rain | OVC045 | 6.7 | 0.6 | 7.8 | 0.6 | 65% | 6 | 76.23 | 1016.6 | 0.03 | 0.03 | ||
| 15 | 11:52 | Calm | 16.09 | Overcast | OVC055 | 7.8 | -2.2 | 50% | 76.28 | 1017.1 | |||||||
| 15 | 10:52 | Calm | 16.09 | Overcast | BKN075 OVC090 | 6.7 | -2.2 | 53% | 76.3 | 1017.3 | |||||||
| 15 | 09:52 | Calm | 16.09 | Overcast | OVC085 | 5.6 | -2.2 | 58% | 76.3 | 1017.4 | |||||||
| 15 | 08:52 | Calm | 16.09 | Overcast | BKN100 OVC140 | 3.9 | -2.2 | 65% | 76.3 | 1017.5 | |||||||
| 15 | 07:52 | Calm | 16.09 | Overcast | SCT120 OVC150 | 1.7 | -2.8 | 72% | 76.3 | 1017.3 | |||||||
| 15 | 06:52 | Calm | 16.09 | Overcast | OVC150 | 1.7 | -2.8 | 2.8 | -1.1 | 72% | 76.28 | 1017.1 | |||||
| 15 | 05:52 | NW 6 | 16.09 | Overcast | OVC150 | 1.7 | -2.8 | 72% | 76.3 | 1017.2 | |||||||
| 15 | 04:52 | Calm | 16.09 | Overcast | OVC160 | 1.7 | -3.3 | 70% | 76.28 | 1017.1 | |||||||
| 15 | 03:52 | SW 6 | 16.09 | Overcast | OVC150 | 1.1 | -3.3 | 73% | 76.3 | 1017.5 | |||||||
| 15 | 02:52 | Calm | 16.09 | Mostly Cloudy | SCT140 BKN160 | -1.1 | -3.9 | 82% | 76.33 | 1017.7 | |||||||
| 15 | 01:52 | Calm | 16.09 | Mostly Cloudy | FEW140 BKN160 | 0 | -3.9 | 75% | 76.38 | 1018.2 | |||||||
| 15 | 00:52 | Calm | 16.09 | Mostly Cloudy | BKN160 | 0.6 | -2.8 | 5.6 | 0.6 | 78% | 76.4 | 1018.7 | |||||
| 14 | 23:52 | Calm | 16.09 | Mostly Cloudy | BKN180 | 1.1 | -3.9 | 70% | 76.43 | 1018.9 | |||||||
| 14 | 22:52 | S 6 | 16.09 | Partly Cloudy | SCT250 | 1.1 | -3.9 | 70% | 76.43 | 1019.0 | |||||||
| 14 | 21:52 | Calm | 16.09 | Partly Cloudy | SCT250 | 2.2 | -3.3 | 67% | 76.4 | 1018.9 | |||||||
| 14 | 20:52 | S 6 | 16.09 | Partly Cloudy | SCT250 | 2.8 | -3.3 | 65% | 76.43 | 1019.2 | |||||||
| 14 | 19:52 | Calm | 16.09 | Fair | CLR | 3.9 | -3.9 | 57% | 76.45 | 1019.4 | |||||||
| 14 | 18:52 | S 6 | 16.09 | Partly Cloudy | FEW120 SCT250 | 4.4 | -3.9 | 13.9 | 4.4 | 55% | 76.45 | 1019.5 | |||||
| 14 | 17:52 | S 6 | 16.09 | Overcast | BKN120 OVC200 | 8.9 | -3.9 | 41% | 76.4 | 1018.8 | |||||||
| 14 | 16:52 | S 9 | 16.09 | Mostly Cloudy | FEW120 BKN250 | 11.1 | -2.8 | 38% | 76.38 | 1018.6 | |||||||
| 14 | 15:52 | W 9 | 16.09 | Partly Cloudy | FEW150 SCT250 | 13.3 | -2.8 | 33% | 76.38 | 1018.3 | |||||||
| 14 | 14:52 | SW 13 | 16.09 | A Few Clouds | FEW250 | 13.9 | -3.3 | 30% | 76.35 | 1018.0 | |||||||
| 14 | 13:52 | W 11 | 16.09 | Mostly Cloudy | FEW080 BKN250 | 13.3 | -2.8 | 33% | 76.4 | 1018.7 | |||||||
| 14 | 12:52 | W 15 | 16.09 | A Few Clouds | FEW080 FEW250 | 12.2 | -1.7 | 12.2 | -5 | 38% | 76.45 | 1019.4 | |||||
| 14 | 11:52 | S 11 | 16.09 | A Few Clouds | FEW080 FEW250 | 10.6 | -3.9 | 36% | 76.53 | 1020.5 | |||||||
| 14 | 10:52 | S 9 | 16.09 | A Few Clouds | FEW250 | 7.8 | -5 | 40% | 6 | 76.61 | 1021.6 | ||||||
| 14 | 09:52 | S 11 | 16.09 | A Few Clouds | FEW090 FEW250 | 3.9 | -6.7 | 46% | 1 | 76.63 | 1022.1 | ||||||
| 14 | 08:52 | S 9 | 16.09 | Partly Cloudy | SCT090 | 0 | -7.2 | 59% | -3 | 76.66 | 1022.4 | ||||||
| 14 | 07:52 | S 7 | 16.09 | A Few Clouds | FEW090 | -3.3 | -8.3 | 69% | -6 | 76.63 | 1022.0 | ||||||
| 14 | 06:52 | Calm | 16.09 | A Few Clouds | FEW080 | -4.4 | -8.9 | -2.8 | -5.6 | 71% | 76.66 | 1022.1 | |||||
| 14 | 05:52 | Calm | 16.09 | A Few Clouds | FEW080 | -4.4 | -9.4 | 68% | 76.63 | 1021.9 | |||||||
| 14 | 04:52 | Calm | 16.09 | A Few Clouds | FEW100 | -4.4 | -10 | 65% | 76.63 | 1022.0 | |||||||
| 14 | 03:52 | S 7 | 16.09 | Fair | CLR | -3.9 | -9.4 | 66% | -7 | 76.63 | 1021.8 | ||||||
| 14 | 02:52 | S 11 | 16.09 | Fair | CLR | -4.4 | -9.4 | 68% | -8 | 76.66 | 1022.3 | ||||||
| 14 | 01:52 | S 9 | 16.09 | Fair | CLR | -3.3 | -10 | 60% | -7 | 76.68 | 1022.6 | ||||||
| 14 | 00:52 | S 11 | 16.09 | Fair | CLR | -3.9 | -9.4 | -1.1 | -5 | 66% | -8 | 76.68 | 1022.6 | ||||
| 13 | 23:52 | S 6 | 16.09 | Fair | CLR | -4.4 | -9.4 | 68% | 76.71 | 1023.0 | |||||||
| 13 | 22:52 | Calm | 16.09 | Fair | CLR | -4.4 | -9.4 | 68% | 76.71 | 1022.9 | |||||||
| 13 | 21:52 | S 6 | 16.09 | Fair | CLR | -4.4 | -9.4 | 68% | 76.71 | 1022.9 | |||||||
| 13 | 20:52 | SW 7 | 16.09 | Fair | CLR | -3.9 | -9.4 | 66% | -7 | 76.71 | 1022.9 | ||||||
| 13 | 19:52 | E 6 | 16.09 | Fair | CLR | -2.8 | -9.4 | 61% | 76.73 | 1023.1 | |||||||
| 13 | 18:52 | Calm | 16.09 | Fair | CLR | -0.6 | -10.6 | 3.9 | -1.7 | 47% | 76.71 | 1022.8 | |||||
| 13 | 17:52 | N 7 | 16.09 | A Few Clouds | FEW250 | 2.8 | -11.7 | 34% | 1 | 76.68 | 1022.6 | ||||||
| 13 | 16:52 | NW 9 | 16.09 | A Few Clouds | FEW250 | 3.9 | -11.1 | 33% | 2 | 76.68 | 1022.5 | ||||||
| 13 | 15:52 | N 9 | 16.09 | A Few Clouds | FEW200 | 3.9 | -10.6 | 34% | 2 | 76.68 | 1022.5 | ||||||
| 13 | 14:52 | N 11 | 16.09 | Fair | CLR | 3.3 | -10.6 | 36% | 1 | 76.68 | 1022.7 | ||||||
| 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) | |||||||||||||||