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. | ||||||||||||||||
| 28 | 02:52 | N 19 | 16.09 | A Few Clouds | FEW055 | -7.8 | -17.2 | 47% | -14 | 76.76 | 1023.7 | ||||||
| 28 | 01:52 | NW 30 G 46 | 16.09 | Partly Cloudy | SCT055 | -6.7 | -17.2 | 43% | -15 | 76.68 | 1022.8 | ||||||
| 28 | 00:52 | NW 15 | 16.09 | Partly Cloudy | SCT060 | -6.1 | -15.6 | -2.8 | -6.1 | 47% | -11 | 76.66 | 1022.4 | ||||
| 27 | 23:52 | NW 17 G 33 | 16.09 | Mostly Cloudy | BKN055 | -5.6 | -14.4 | 50% | -11 | 76.63 | 1022.1 | ||||||
| 27 | 22:52 | NW 13 | 16.09 | Overcast | SCT050 OVC065 | -5.6 | -12.8 | 57% | -10 | 76.61 | 1021.6 | ||||||
| 27 | 21:52 | NW 17 | 16.09 | Overcast | OVC060 | -4.4 | -13.9 | 48% | -10 | 76.53 | 1020.7 | ||||||
| 27 | 20:52 | NW 17 | 16.09 | Mostly Cloudy | BKN060 | -4.4 | -14.4 | 46% | -10 | 76.5 | 1020.5 | ||||||
| 27 | 19:52 | NW 24 G 41 | 16.09 | Fair | CLR | -3.9 | -14.4 | 44% | -10 | 76.4 | 1019.2 | ||||||
| 27 | 18:52 | NW 17 | 16.09 | A Few Clouds | FEW065 | -2.8 | -14.4 | -1.7 | -5 | 41% | -8 | 76.33 | 1017.9 | ||||
| 27 | 17:52 | SW 7 | 16.09 | A Few Clouds | FEW065 | -2.2 | -16.1 | 34% | -5 | 76.2 | 1016.4 | ||||||
| 27 | 16:52 | SW 17 | 16.09 | Mostly Cloudy | BKN070 | -1.7 | -15.6 | 34% | -6 | 76.15 | 1015.8 | ||||||
| 27 | 15:52 | S 15 G 33 | 16.09 | Overcast | BKN080 OVC120 | -2.2 | -16.1 | 34% | -7 | 76.15 | 1015.7 | ||||||
| 27 | 14:52 | S 19 G 39 | 16.09 | A Few Clouds | FEW200 | -2.8 | -17.8 | 31% | -8 | 76.17 | 1016.0 | ||||||
| 27 | 13:52 | SW 20 | 16.09 | Mostly Cloudy | BKN220 | -3.9 | -18.3 | 32% | -10 | 76.25 | 1016.9 | ||||||
| 27 | 12:52 | S 24 | 16.09 | Mostly Cloudy | SCT130 BKN220 | -5 | -18.9 | -5 | -16.1 | 33% | -12 | 76.33 | 1018.0 | ||||
| 27 | 11:52 | SW 20 | 16.09 | Mostly Cloudy | BKN200 | -6.1 | -18.9 | 36% | -12 | 76.5 | 1020.2 | ||||||
| 27 | 10:52 | S 15 | 16.09 | Partly Cloudy | SCT200 | -7.8 | -18.3 | 43% | -13 | 76.58 | 1021.5 | ||||||
| 27 | 09:52 | SW 13 | 16.09 | Fair | CLR | -8.9 | -18.3 | 47% | -14 | 76.66 | 1022.4 | ||||||
| 27 | 08:52 | S 7 | 16.09 | Fair | CLR | -11.1 | -18.3 | 56% | -15 | 76.71 | 1023.2 | ||||||
| 27 | 07:52 | SE 7 | 16.09 | Fair | CLR | -15.6 | -18.9 | 76% | -20 | 76.76 | 1023.9 | ||||||
| 27 | 06:52 | Calm | 16.09 | Fair | CLR | -14.4 | -18.9 | -8.3 | -15.6 | 69% | 76.76 | 1023.8 | |||||
| 27 | 05:52 | Calm | 16.09 | Fair | CLR | -14.4 | -18.9 | 69% | 76.78 | 1024.1 | |||||||
| 27 | 04:52 | S 6 | 16.09 | Fair | CLR | -13.3 | -18.9 | 63% | 76.78 | 1024.1 | |||||||
| 27 | 03:52 | Calm | 16.09 | Fair | CLR | -11.1 | -17.8 | 58% | 76.76 | 1023.9 | |||||||
| 27 | 02:52 | W 22 | 16.09 | Fair | CLR | -9.4 | -17.8 | 51% | -17 | 76.73 | 1023.2 | ||||||
| 27 | 01:52 | W 17 | 16.09 | Fair | CLR | -9.4 | -17.2 | 53% | -16 | 76.73 | 1023.3 | ||||||
| 27 | 00:52 | NW 15 | 16.09 | Fair | CLR | -8.3 | -16.7 | -6.1 | -8.3 | 51% | -14 | 76.71 | 1023.1 | ||||
| 26 | 23:52 | NW 28 G 44 | 16.09 | A Few Clouds | FEW050 | -7.8 | -16.1 | 52% | -16 | 76.68 | 1022.8 | ||||||
| 26 | 22:52 | NW 24 G 44 | 16.09 | A Few Clouds | FEW055 | -7.8 | -16.7 | 49% | -15 | 76.66 | 1022.2 | ||||||
| 26 | 21:52 | W 31 G 48 | 16.09 | A Few Clouds | FEW055 | -7.8 | -16.1 | 52% | -16 | 76.58 | 1021.2 | ||||||
| 26 | 20:52 | NW 33 G 48 | 16.09 | A Few Clouds and Breezy | FEW045 | -7.2 | -16.1 | 49% | -16 | 76.53 | 1020.7 | ||||||
| 26 | 19:52 | NW 30 G 46 | 16.09 | A Few Clouds | FEW045 | -6.1 | -15 | 50% | -14 | 76.48 | 1019.9 | ||||||
| 26 | 18:52 | NW 28 G 44 | 16.09 | A Few Clouds | FEW048 | -6.1 | -15.6 | -3.3 | -6.1 | 47% | -14 | 76.4 | 1019.1 | ||||
| 26 | 17:52 | NW 28 G 52 | 16.09 | Partly Cloudy | SCT050 | -5.6 | -15.6 | 46% | -13 | 76.33 | 1017.9 | ||||||
| 26 | 16:52 | NW 43 G 61 | 16.09 | Partly Cloudy and Windy | SCT050 | -5 | -15.6 | 44% | -14 | 76.25 | 1016.8 | ||||||
| 26 | 15:52 | W 39 G 56 | 16.09 | Partly Cloudy and Breezy | SCT050 | -3.9 | -13.9 | 46% | -12 | 76.15 | 1015.7 | ||||||
| 26 | 14:52 | W 41 G 63 | 16.09 | A Few Clouds and Breezy | FEW049 | -3.9 | -13.9 | 46% | -12 | 76.1 | 1015.0 | ||||||
| 26 | 13:52 | NW 33 G 50 | 16.09 | Partly Cloudy and Breezy | SCT047 SCT120 | -3.9 | -13.3 | 48% | -11 | 76.05 | 1014.4 | ||||||
| 26 | 12:52 | NW 28 G 39 | 16.09 | Mostly Cloudy | SCT038 BKN120 BKN160 | -3.9 | -11.7 | -3.9 | -6.7 | 55% | -11 | 76.07 | 1014.4 | ||||
| 26 | 11:52 | NW 28 G 37 | 16.09 | Mostly Cloudy | FEW035 SCT055 BKN120 | -3.9 | -11.7 | 55% | -11 | 76.07 | 1014.5 | ||||||
| 26 | 10:52 | NW 28 | 16.09 | Mostly Cloudy | FEW035 SCT055 BKN110 | -4.4 | -11.1 | 60% | -11 | 76.07 | 1014.5 | ||||||
| 26 | 09:52 | NW 24 G 41 | 16.09 | Mostly Cloudy | BKN050 BKN120 | -3.9 | -11.1 | 58% | -10 | 76.02 | 1013.9 | ||||||
| 26 | 08:52 | NW 17 | 16.09 | Mostly Cloudy | BKN120 | -5 | -10 | 68% | -10 | 75.97 | 1013.4 | ||||||
| 26 | 07:52 | N 11 | 16.09 | Mostly Cloudy | BKN095 | -6.1 | -10 | 74% | -10 | 75.92 | 1012.6 | ||||||
| 26 | 06:52 | N 13 | 16.09 | Overcast | FEW045 OVC090 | -6.7 | -10.6 | -6.7 | -9.4 | 74% | -12 | 75.9 | 1012.1 | ||||
| 26 | 05:52 | N 11 | 16.09 | Mostly Cloudy | FEW050 BKN090 | -7.8 | -11.1 | 77% | -12 | 75.79 | 1011.1 | ||||||
| 26 | 04:52 | NW 9 | 16.09 | Mostly Cloudy | BKN090 | -8.3 | -11.1 | 80% | -12 | 75.77 | 1010.5 | ||||||
| 26 | 03:52 | N 7 | 16.09 | Mostly Cloudy | BKN090 | -8.3 | -11.1 | 80% | -12 | 75.72 | 1009.8 | ||||||
| 26 | 02:52 | NW 7 | 16.09 | Partly Cloudy | FEW008 SCT015 | -8.9 | -11.1 | 84% | -12 | 75.69 | 1009.6 | ||||||
| 26 | 01:52 | NW 7 | 16.09 | Mostly Cloudy | SCT008 BKN015 | -8.9 | -11.1 | 84% | -12 | 75.67 | 1009.3 | ||||||
| 26 | 00:52 | NW 11 | 16.09 | Overcast | OVC008 | -8.3 | -10.6 | -7.8 | -8.3 | 84% | -13 | 75.67 | 1009.3 | 0.03 | |||
| 25 | 23:52 | N 11 | 16.09 | Overcast | OVC010 | -8.3 | -11.1 | 80% | -13 | 75.72 | 1009.9 | ||||||
| 25 | 22:52 | NW 13 | 16.09 | Overcast | OVC012 | -8.3 | -11.1 | 80% | -14 | 75.69 | 1009.5 | ||||||
| 25 | 21:52 | NW 11 | 16.09 | Overcast | OVC013 | -7.8 | -10.6 | 81% | -12 | 75.74 | 1010.4 | 0.03 | |||||
| 25 | 20:52 | NW 13 | 16.09 | Overcast | OVC013 | -7.8 | -10.6 | 81% | -13 | 75.72 | 1009.9 | ||||||
| 25 | 19:52 | NW 15 G 30 | 14.48 | Overcast | FEW007 OVC012 | -7.8 | -10 | 84% | -13 | 75.67 | 1009.1 | 0.03 | |||||
| 25 | 18:52 | N 11 | 4.83 | Fog/Mist | OVC012 | -8.3 | -10 | -7.8 | -9.4 | 88% | -13 | 75.64 | 1009.0 | 0.13 | 1.98 | ||
| 25 | 17:52 | NW 17 | 3.22 | Fog/Mist | BKN011 OVC017 | -8.9 | -10.6 | 88% | -15 | 75.79 | 1011.0 | 0.25 | |||||
| 25 | 16:52 | N 17 | 1.21 | Fog/Mist | OVC014 | -8.9 | -10.6 | 88% | -15 | 75.87 | 1011.8 | 0.38 | |||||
| 25 | 15:52 | N 15 | 1.21 | Fog/Mist | OVC014 | -8.9 | -10.6 | 88% | -15 | 75.9 | 1012.4 | 0.46 | 1.22 | ||||
| 25 | 14:52 | N 15 | 0.80 | Freezing Fog | BKN017 OVC026 | -8.9 | -11.1 | 84% | -15 | 76.02 | 1014.1 | 0.36 | |||||
| 25 | 13:52 | N 17 | 1.21 | Fog/Mist | BKN014 OVC023 | -8.9 | -11.1 | 84% | -15 | 76.17 | 1016.0 | 0.41 | |||||
| 25 | 12:52 | N 13 | 0.80 | Heavy Snow Freezing Fog | VV009 | -8.3 | -10 | -8.3 | -10 | 88% | -14 | 76.38 | 1018.8 | 0.25 | 1.93 | ||
| 25 | 11:52 | N 11 | 0.80 | Freezing Fog | VV012 | -8.9 | -10.6 | 88% | -14 | 76.5 | 1020.5 | 0.25 | |||||
| 25 | 10:52 | N 17 | 1.21 | Fog/Mist | OVC015 | -8.9 | -11.1 | 84% | -15 | 76.73 | 1023.4 | 0.36 | |||||
| 25 | 09:52 | N 15 | 1.21 | Fog/Mist | VV015 | -9.4 | -11.1 | 88% | -15 | 76.86 | 1025.2 | 0.43 | 1.07 | ||||
| 25 | 08:52 | N 11 | 1.21 | Fog/Mist | VV011 | -10 | -11.7 | 88% | -15 | 77.01 | 1027.1 | 0.36 | |||||
| 25 | 07:52 | NE 19 | 2.01 | Light Snow Fog/Mist | OVC014 | -10 | -12.2 | 84% | -17 | 77.09 | 1028.1 | 0.28 | |||||
| 25 | 06:52 | NE 13 | 1.61 | Light Snow Fog/Mist | VV017 | -10 | -12.2 | -9.4 | -10 | 84% | -16 | 77.17 | 1029.4 | 0.3 | 1.22 | ||
| 25 | 05:52 | NE 15 | 0.40 | Snow Freezing Fog | VV006 | -10 | -11.7 | 88% | -16 | 77.32 | 1031.4 | 0.28 | |||||
| 25 | 04:52 | NE 9 | 1.21 | Light Snow Fog/Mist | VV011 | -10 | -12.2 | 84% | -14 | 77.39 | 1032.2 | 0.3 | |||||
| 25 | 03:52 | NE 13 | 0.80 | Snow Freezing Fog | VV009 | -10 | -11.7 | 88% | -16 | 77.42 | 1032.7 | 0.13 | 0.33 | ||||
| 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) | |||||||||||||||