Weather observations for the past three days for
Washington/Dulles International Airport, DC
Metric (Imperial)
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.
16 05:52 SE 20 G 33 16.09 Overcast BKN007 OVC012 16.1 15.6 97% 75.31 1003.9 0.03
16 04:52 SE 22 G 35 16.09 Overcast BKN008 OVC013 16.1 15.6 97% 75.39 1005.0
16 03:52 S 22 G 37 14.48 Light Rain OVC007 15.6 15 96% 75.49 1006.2
16 02:52 SE 20 G 35 16.09 Overcast OVC006 15.6 14.4 93% 75.57 1007.3
16 01:52 SE 22 G 48 14.48 Light Rain OVC006 15 13.9 15 11.7 93% 75.67 1008.7 0.03 0.2
16 00:52 SE 17 G 31 6.44 Light Rain Fog/Mist BKN007 OVC010 13.3 12.8 97% 75.79 1010.4 0.13
15 23:52 SE 15 G 30 11.27 Light Rain OVC014 13.3 11.7 90% 75.95 1012.5 0.05
15 22:52 SE 15 16.09 Mostly Cloudy BKN025 BKN038 13.3 10.6 84% 76.07 1014.2
15 21:52 SE 17 16.09 Mostly Cloudy BKN025 BKN090 13.3 9.4 77% 76.2 1015.9
15 20:52 E 11 16.09 Overcast BKN023 OVC037 11.7 5 64% 76.3 1017.2
15 19:52 E 13 16.09 Overcast SCT025 OVC037 12.8 6.7 13.9 12.8 67% 76.35 1018.1
15 18:52 E 22 G 37 16.09 Overcast BKN030 BKN050 OVC100 13.3 6.1 62% 76.4 1018.6
15 17:52 E 13 16.09 Overcast BKN033 OVC100 12.8 3.3 53% 76.48 1019.6
15 16:52 E 20 G 33 16.09 Overcast BKN034 OVC100 12.8 2.2 49% 76.56 1020.5
15 15:52 SE 19 G 35 16.09 Overcast OVC037 13.9 1.7 44% 76.61 1021.2
15 14:52 SE 20 G 39 16.09 Mostly Cloudy BKN040 BKN150 13.9 2.2 45% 76.66 1022.0
15 13:52 SE 20 G 37 16.09 Overcast OVC042 12.8 1.1 12.8 5.6 45% 76.78 1023.6
15 12:52 SE 22 G 35 16.09 Overcast BKN039 OVC070 11.1 0 47% 76.89 1025.1
15 11:52 SE 19 16.09 Overcast OVC038 10 -2.8 41% 8 76.94 1025.9
15 10:52 SE 17 G 31 16.09 Overcast OVC040 9.4 -3.3 41% 7 77.01 1026.8
15 09:52 E 19 G 30 16.09 Mostly Cloudy BKN045 8.9 -4.4 39% 6 77.01 1026.8
15 08:52 E 13 G 30 16.09 Mostly Cloudy BKN050 BKN170 7.8 -3.9 44% 6 77.01 1026.8
15 07:52 E 6 16.09 Mostly Cloudy SCT055 SCT170 BKN250 5.6 -4.4 6.7 2.8 49% 76.99 1026.6
15 06:52 Calm 16.09 Mostly Cloudy BKN055 BKN170 6.7 -5 43% 76.99 1026.4
15 05:52 E 6 16.09 Mostly Cloudy BKN048 6.1 -5 45% 76.94 1025.8
15 04:52 E 7 16.09 Mostly Cloudy FEW050 BKN200 6.7 -6.1 40% 6 76.94 1025.8
15 03:52 E 11 16.09 Mostly Cloudy FEW170 BKN200 6.7 -6.7 38% 5 76.96 1026.0
15 02:52 E 6 16.09 Mostly Cloudy SCT150 BKN180 3.9 -5 53% 76.96 1026.2
15 01:52 E 6 16.09 Partly Cloudy FEW140 SCT250 4.4 -6.1 12.2 3.9 47% 76.96 1026.2
15 00:52 E 6 16.09 Mostly Cloudy BKN140 BKN250 6.7 -8.3 34% 76.96 1026.2
14 23:52 E 7 16.09 Partly Cloudy FEW130 SCT250 5.6 -8.3 36% 4 76.96 1026.1
14 22:52 Calm 16.09 Partly Cloudy SCT250 7.2 -8.3 33% 76.94 1025.8
14 21:52 E 7 16.09 A Few Clouds FEW200 6.7 -8.3 34% 6 76.89 1025.2
14 20:52 N 11 16.09 Fair CLR 10 -10 24% 9 76.78 1023.8
14 19:52 N 11 16.09 Mostly Cloudy FEW140 BKN200 11.1 -9.4 15.6 10.6 23% 76.71 1022.6
14 18:52 NW 17 16.09 Mostly Cloudy FEW140 BKN200 13.3 -10 19% 76.66 1022.1
14 17:52 N 15 16.09 Mostly Cloudy BKN200 15 -10 17% 76.58 1021.0
14 16:52 NW 13 16.09 Mostly Cloudy BKN200 15.6 -9.4 17% 76.58 1020.8
14 15:52 NW 19 16.09 Mostly Cloudy BKN200 15 -8.3 19% 76.56 1020.8
14 14:52 W 26 G 37 16.09 Mostly Cloudy BKN200 14.4 -8.3 20% 76.53 1020.4
14 13:52 NW 31 G 44 16.09 Mostly Cloudy FEW180 BKN250 13.9 -8.3 13.9 7.8 21% 76.58 1021.0
14 12:52 W 28 G 39 16.09 Mostly Cloudy FEW200 BKN250 13.3 -7.8 22% 76.58 1020.9
14 11:52 NW 33 G 44 14.48 Mostly Cloudy and Breezy FEW200 BKN250 11.7 -7.2 26% 76.53 1020.3
14 10:52 NW 24 G 44 16.09 Mostly Cloudy FEW200 BKN250 10.6 -7.8 27% 76.5 1019.9
14 09:52 NW 26 G 41 16.09 Mostly Cloudy BKN250 10 -8.3 27% 7 76.43 1018.9
14 08:52 W 11 16.09 Mostly Cloudy BKN250 10.6 -8.3 26% 76.33 1017.5
14 07:52 W 9 16.09 Partly Cloudy SCT250 7.8 -10 11.1 6.7 27% 6 76.23 1016.3
14 06:52 W 9 16.09 A Few Clouds FEW250 8.3 -11.7 23% 7 76.1 1014.6
14 05:52 W 9 16.09 A Few Clouds FEW250 10 -12.8 19% 9 76 1013.2
14 04:52 W 17 G 33 16.09 A Few Clouds FEW250 9.4 -6.1 33% 7 75.9 1011.9
14 03:52 SW 9 16.09 A Few Clouds FEW250 7.8 -1.7 51% 6 75.84 1011.1
14 02:52 S 17 16.09 A Few Clouds FEW085 8.9 -1.7 48% 7 75.79 1010.6
14 01:52 SW 13 G 35 16.09 A Few Clouds FEW050 10 -1.1 12.2 10 46% 8 75.77 1010.1
14 00:52 SW 15 16.09 A Few Clouds FEW050 FEW200 10.6 -1.7 43% 75.74 1009.7
13 23:52 SW 15 16.09 A Few Clouds FEW200 11.1 -1.7 41% 75.69 1009.1
13 22:52 SW 22 16.09 A Few Clouds FEW200 11.7 -2.2 38% 75.64 1008.4
13 21:52 SW 24 G 43 16.09 A Few Clouds FEW200 11.7 -2.2 38% 75.59 1007.8
13 20:52 S 31 G 50 16.09 A Few Clouds FEW200 12.2 -2.8 35% 75.51 1006.7
13 19:52 S 30 G 50 16.09 Partly Cloudy FEW100 SCT200 12.2 -2.8 13.3 10 35% 75.49 1006.5
13 18:52 S 28 G 48 16.09 Partly Cloudy FEW100 SCT200 12.2 -2.2 37% 75.46 1006.3
13 17:52 SW 43 G 65 16.09 Mostly Cloudy and Windy FEW100 BKN200 12.8 -2.8 34% 75.51 1006.8
13 16:52 S 39 G 72 16.09 Mostly Cloudy and Breezy FEW100 BKN200 12.8 -3.9 31% 75.51 1006.8
13 15:52 S 46 G 76 16.09 Mostly Cloudy and Windy FEW110 BKN250 12.2 -4.4 31% 75.64 1008.4
13 14:52 S 35 G 59 16.09 Mostly Cloudy and Breezy FEW120 BKN200 10.6 -5.6 32% 75.84 1011.5
13 13:52 S 33 G 65 16.09 Mostly Cloudy and Breezy BKN110 BKN250 10.6 -5.6 11.1 -1.7 32% 76.05 1014.2
13 12:52 S 35 G 57 16.09 Mostly Cloudy and Breezy BKN110 BKN250 8.3 -6.1 36% 4 76.17 1015.6
13 11:52 S 31 G 43 16.09 Overcast BKN110 OVC250 7.2 -6.1 39% 3 76.43 1019.0
13 10:52 S 24 G 41 16.09 Mostly Cloudy SCT110 BKN250 7.2 -5.6 40% 4 76.5 1020.1
13 09:52 S 20 16.09 Mostly Cloudy FEW120 BKN250 4.4 -4.4 53% 1 76.58 1021.1
13 07:52 S 9 16.09 Mostly Cloudy BKN240 -1.7 -5.6 -1.1 -3.3 75% -5 76.63 1021.8
13 06:52 S 6 16.09 Fair CLR -1.7 -6.7 69% 76.58 1021.3
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)