Weather observations for the past three days for
Washington/Dulles International Airport, DC
| Date | Time (edt) | 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. | ||||||||||||||||
| 19 | 04:52 | S 7 | 16.09 | Overcast | BKN060 OVC095 | 1.7 | -3.3 | 70% | -0 | 76.84 | 1024.5 | ||||||
| 19 | 03:52 | SE 7 | 16.09 | Overcast | OVC065 | 1.7 | -3.9 | 67% | -0 | 76.86 | 1024.8 | ||||||
| 19 | 02:52 | S 7 | 16.09 | Overcast | OVC100 | 2.2 | -4.4 | 62% | 0 | 76.91 | 1025.5 | ||||||
| 19 | 01:52 | S 9 | 16.09 | Overcast | FEW060 OVC100 | 2.2 | -5 | 2.8 | 1.7 | 59% | -0 | 76.96 | 1026.2 | ||||
| 19 | 00:52 | S 11 | 16.09 | Overcast | OVC070 | 2.2 | -5.6 | 57% | -1 | 76.99 | 1026.6 | ||||||
| 18 | 23:52 | SE 9 | 16.09 | Overcast | OVC070 | 2.2 | -6.7 | 52% | -0 | 76.99 | 1026.7 | ||||||
| 18 | 22:52 | SE 15 | 16.09 | Overcast | OVC075 | 2.8 | -7.2 | 48% | -1 | 77.01 | 1026.8 | ||||||
| 18 | 21:52 | SE 13 | 16.09 | Mostly Cloudy | SCT085 BKN120 | 2.8 | -8.3 | 44% | -0 | 77.01 | 1026.9 | ||||||
| 18 | 20:52 | SE 13 | 16.09 | Partly Cloudy | FEW080 SCT100 | 2.2 | -8.9 | 44% | -1 | 77.01 | 1026.9 | ||||||
| 18 | 19:52 | SE 11 | 16.09 | Partly Cloudy | SCT100 SCT250 | 2.8 | -10 | 5 | 2.8 | 39% | 0 | 76.96 | 1026.3 | ||||
| 18 | 18:52 | SW 13 | 16.09 | A Few Clouds | FEW100 FEW250 | 3.9 | -11.7 | 31% | 1 | 76.99 | 1026.6 | ||||||
| 18 | 17:52 | SW 17 | 16.09 | A Few Clouds | FEW070 FEW250 | 5 | -11.1 | 30% | 2 | 76.99 | 1026.7 | ||||||
| 18 | 16:52 | S 11 | 16.09 | A Few Clouds | FEW070 FEW250 | 5 | -11.1 | 30% | 3 | 77.01 | 1027.1 | ||||||
| 18 | 15:52 | Vrbl 9 | 16.09 | A Few Clouds | FEW080 FEW250 | 4.4 | -11.7 | 30% | 2 | 77.06 | 1027.6 | ||||||
| 18 | 14:52 | S 17 G 33 | 16.09 | A Few Clouds | FEW075 FEW250 | 3.3 | -12.2 | 31% | -0 | 77.11 | 1028.3 | ||||||
| 18 | 13:52 | SE 19 G 33 | 16.09 | A Few Clouds | FEW075 FEW250 | 2.8 | -12.8 | 3.3 | -3.3 | 31% | -1 | 77.19 | 1029.4 | ||||
| 18 | 12:52 | E 15 | 16.09 | A Few Clouds | FEW140 FEW250 | 2.2 | -12.8 | 32% | -1 | 77.27 | 1030.3 | ||||||
| 18 | 11:52 | Calm | 16.09 | A Few Clouds | FEW250 | 0.6 | -12.8 | 36% | 77.29 | 1030.8 | |||||||
| 18 | 10:52 | Vrbl 6 | 16.09 | Mostly Cloudy | BKN140 BKN250 | -0.6 | -12.2 | 42% | 77.27 | 1030.5 | |||||||
| 18 | 09:52 | N 9 | 16.09 | Mostly Cloudy | SCT120 BKN150 BKN220 | -2.2 | -12.2 | 47% | -5 | 77.24 | 1030.1 | ||||||
| 18 | 08:52 | N 13 | 16.09 | Mostly Cloudy | BKN170 BKN220 | -2.8 | -12.2 | 49% | -7 | 77.19 | 1029.4 | ||||||
| 18 | 07:52 | N 9 | 16.09 | Mostly Cloudy | BKN250 | -3.3 | -11.7 | -3.3 | -5 | 53% | -7 | 77.22 | 1029.6 | ||||
| 18 | 06:52 | NW 17 | 16.09 | Mostly Cloudy | BKN250 | -3.9 | -11.7 | 55% | -9 | 77.22 | 1029.6 | ||||||
| 18 | 05:52 | W 7 | 16.09 | Mostly Cloudy | BKN250 | -4.4 | -11.1 | 60% | -7 | 77.22 | 1029.6 | ||||||
| 18 | 04:52 | W 11 | 16.09 | Fair | CLR | -4.4 | -11.7 | 57% | -8 | 77.09 | 1028.2 | ||||||
| 18 | 03:52 | W 6 | 16.09 | Fair | CLR | -4.4 | -11.7 | 57% | 77.06 | 1027.8 | |||||||
| 18 | 02:52 | NW 17 | 16.09 | Fair | CLR | -3.3 | -11.7 | 53% | -8 | 77.01 | 1027.0 | ||||||
| 18 | 01:52 | NW 13 | 16.09 | Fair | CLR | -3.3 | -12.8 | 0.6 | -3.3 | 48% | -8 | 77.01 | 1027.0 | ||||
| 18 | 00:52 | NW 13 | 16.09 | Fair | CLR | -2.8 | -12.8 | 46% | -7 | 76.96 | 1026.5 | ||||||
| 17 | 23:52 | NW 17 | 16.09 | Fair | CLR | -2.2 | -12.2 | 47% | -7 | 76.89 | 1025.3 | ||||||
| 17 | 22:52 | NW 26 G 37 | 16.09 | Fair | CLR | -1.1 | -12.8 | 41% | -7 | 76.81 | 1024.2 | ||||||
| 17 | 21:52 | NW 24 G 39 | 16.09 | Fair | CLR | -1.1 | -12.8 | 41% | -7 | 76.78 | 1024.0 | ||||||
| 17 | 20:52 | NW 28 G 46 | 16.09 | A Few Clouds | FEW100 | -0.6 | -12.2 | 42% | -7 | 76.71 | 1022.9 | ||||||
| 17 | 19:52 | NW 26 G 41 | 16.09 | A Few Clouds | FEW060 FEW090 | 0.6 | -10.6 | 4.4 | 0.6 | 43% | -5 | 76.58 | 1021.1 | ||||
| 17 | 18:52 | NW 28 G 39 | 16.09 | Mostly Cloudy | BKN065 BKN090 | 1.7 | -10 | 42% | -4 | 76.45 | 1019.5 | ||||||
| 17 | 17:52 | NW 22 G 44 | 16.09 | Mostly Cloudy | SCT055 BKN070 | 2.8 | -9.4 | 41% | -2 | 76.33 | 1017.9 | ||||||
| 17 | 16:52 | NW 31 G 39 | 16.09 | Mostly Cloudy | BKN060 BKN080 | 3.9 | -10 | 36% | -1 | 76.23 | 1016.3 | ||||||
| 17 | 15:52 | NW 24 G 39 | 16.09 | Mostly Cloudy | BKN060 BKN080 | 2.8 | -8.9 | 42% | -2 | 76.23 | 1016.3 | ||||||
| 17 | 14:52 | W 22 G 46 | 16.09 | Mostly Cloudy | BKN065 BKN080 | 2.8 | -9.4 | 41% | -2 | 76.17 | 1015.7 | ||||||
| 17 | 13:52 | NW 26 G 39 | 16.09 | Mostly Cloudy | BKN055 BKN075 | 2.8 | -8.9 | 3.9 | -1.1 | 42% | -2 | 76.2 | 1015.9 | ||||
| 17 | 12:52 | NW 30 G 41 | 16.09 | Mostly Cloudy | BKN065 | 3.3 | -8.9 | 41% | -2 | 76.2 | 1016.0 | ||||||
| 17 | 11:52 | W 28 G 43 | 16.09 | Mostly Cloudy | BKN055 | 2.8 | -8.9 | 42% | -2 | 76.2 | 1016.2 | ||||||
| 17 | 10:52 | W 28 G 57 | 16.09 | Partly Cloudy | SCT055 | 2.2 | -10.6 | 39% | -3 | 76.23 | 1016.3 | ||||||
| 17 | 09:52 | W 26 G 43 | 16.09 | Partly Cloudy | SCT055 SCT250 | 1.7 | -10 | 42% | -3 | 76.17 | 1015.8 | ||||||
| 17 | 08:52 | W 15 | 16.09 | Partly Cloudy | SCT055 SCT250 | 0 | -9.4 | 50% | -4 | 76.15 | 1015.4 | ||||||
| 17 | 07:52 | NW 19 | 16.09 | Partly Cloudy | FEW050 SCT250 | -1.1 | -10 | 1.7 | -1.1 | 51% | -6 | 76.02 | 1013.5 | ||||
| 17 | 06:52 | W 19 G 39 | 16.09 | A Few Clouds | FEW050 | -1.1 | -10 | 51% | -6 | 75.95 | 1012.4 | ||||||
| 17 | 05:52 | W 26 G 50 | 16.09 | Mostly Cloudy | BKN050 | -0.6 | -10 | 49% | -6 | 75.82 | 1011.0 | ||||||
| 17 | 04:52 | W 24 G 52 | 16.09 | Mostly Cloudy | BKN055 | 0 | -10 | 47% | -5 | 75.72 | 1009.4 | ||||||
| 17 | 03:52 | W 20 G 41 | 16.09 | A Few Clouds | FEW055 | 0.6 | -8.3 | 52% | -4 | 75.62 | 1008.3 | ||||||
| 17 | 02:52 | W 33 G 54 | 16.09 | Overcast and Breezy | OVC055 | 1.1 | -6.7 | 56% | -5 | 75.59 | 1007.6 | ||||||
| 17 | 01:52 | NW 13 | 16.09 | Partly Cloudy | SCT055 | 1.7 | -3.9 | 17.8 | 1.7 | 67% | -2 | 75.41 | 1005.5 | 1.3 | |||
| 17 | 00:52 | W 35 G 57 | 16.09 | A Few Clouds and Breezy | FEW050 | 2.8 | -5 | 57% | -3 | 75.29 | 1003.5 | ||||||
| 16 | 23:52 | W 26 | 16.09 | Partly Cloudy | FEW050 SCT080 | 2.8 | -1.7 | 73% | -2 | 75.16 | 1002.0 | ||||||
| 16 | 22:52 | NW 35 G 50 | 11.27 | Light Rain and Breezy | SCT017 BKN024 OVC040 | 2.2 | 0.6 | 89% | -4 | 75.03 | 1000.1 | 0.18 | 1.3 | ||||
| 16 | 21:52 | NW 26 G 54 | 4.83 | Light Rain Fog/Mist | SCT013 OVC024 | 3.3 | 1.7 | 89% | -1 | 74.85 | 997.9 | 0.61 | |||||
| 16 | 20:52 | NW 44 G 69 | 1.21 | Heavy Rain Fog/Mist and Windy | VV009 | 5 | 3.9 | 93% | -1 | 74.65 | 995.3 | 0.51 | |||||
| 16 | 19:52 | Vrbl 11 G 43 | 16.09 | Overcast | FEW013 OVC035 | 18.3 | 13.9 | 18.3 | 16.1 | 76% | 74.3 | 990.4 | |||||
| 16 | 18:52 | S 20 G 44 | 16.09 | Overcast | FEW011 SCT033 OVC120 | 18.3 | 15 | 81% | 74.32 | 990.7 | |||||||
| 16 | 17:52 | SE 22 G 37 | 16.09 | Mostly Cloudy | SCT010 BKN090 BKN110 | 17.2 | 16.1 | 93% | 74.45 | 992.3 | |||||||
| 16 | 16:52 | S 20 G 39 | 16.09 | Overcast | SCT025 BKN065 OVC120 | 16.7 | 15 | 90% | 74.57 | 994.1 | |||||||
| 16 | 15:52 | S 17 G 39 | 16.09 | Overcast | FEW022 BKN070 OVC120 | 16.1 | 13.9 | 87% | 74.68 | 995.5 | |||||||
| 16 | 14:52 | S 19 G 39 | 16.09 | Light Rain | FEW018 BKN039 OVC080 | 16.7 | 14.4 | 86% | 74.78 | 996.7 | |||||||
| 16 | 13:52 | S 19 | 11.27 | Light Rain | BKN050 OVC080 | 16.7 | 15 | 20.6 | 16.7 | 90% | 74.85 | 997.7 | 0.2 | 0.94 | |||
| 16 | 12:52 | S 39 G 59 | 4.83 | Rain Fog/Mist and Breezy | BKN027 BKN055 OVC070 | 17.2 | 15 | 87% | 74.96 | 999.2 | 0.46 | ||||||
| 16 | 11:52 | S 20 G 39 | 3.22 | Light Rain Fog/Mist | BKN009 BKN019 OVC022 | 18.9 | 17.2 | 90% | 75.03 | 1000.1 | 0.28 | ||||||
| 16 | 10:52 | S 19 G 39 | 16.09 | Overcast | BKN019 OVC025 | 20 | 16.7 | 81% | 75.08 | 1000.7 | |||||||
| 16 | 09:52 | S 17 G 48 | 16.09 | Overcast | BKN020 OVC025 | 19.4 | 16.7 | 84% | 75.13 | 1001.6 | |||||||
| 16 | 08:52 | S 22 G 39 | 16.09 | Overcast | OVC018 | 18.3 | 16.7 | 90% | 75.16 | 1001.9 | |||||||
| 16 | 07:52 | S 20 G 31 | 16.09 | Overcast | BKN014 OVC024 | 17.2 | 16.1 | 17.2 | 15 | 93% | 75.23 | 1002.7 | 0.05 | ||||
| 16 | 06:52 | S 17 G 37 | 16.09 | Overcast | BKN008 OVC014 | 17.2 | 16.1 | 93% | 75.26 | 1003.1 | 0.03 | ||||||
| Date | Time (edt) | 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) | |||||||||||||||