Weather observations for the past three days for
Washington/Dulles International Airport, DC
Metric (Imperial)
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.
06 23:52 SE 7 16.09 Overcast OVC011 7.8 5.6 86% 7 77.04 1027.0
06 22:52 SE 9 14.48 Overcast OVC009 7.8 6.1 89% 6 77.04 1027.1
06 21:52 E 11 11.27 Overcast OVC007 7.8 6.7 93% 6 77.11 1028.3
06 20:52 E 9 8.05 Fog/Mist OVC005 7.8 6.7 93% 6 77.09 1027.9
06 19:52 E 13 9.66 Fog/Mist OVC006 8.3 7.2 93% 6 77.06 1027.3
06 18:52 E 13 11.27 Overcast OVC007 8.3 7.2 11.7 8.3 93% 6 77.01 1026.8 0.03
06 17:52 E 11 11.27 Overcast BKN010 OVC015 9.4 7.8 90% 8 76.99 1026.3 0.03
06 16:52 E 9 8.05 Light Rain Fog/Mist OVC012 10 7.8 86% 9 76.96 1025.9
06 15:52 E 9 11.27 Overcast OVC013 10.6 7.8 83% 76.94 1025.7
06 14:52 E 13 11.27 Overcast OVC012 11.1 8.3 83% 76.91 1025.3
06 13:52 NE 13 11.27 Overcast OVC012 11.1 8.3 83% 76.91 1025.5
06 12:52 E 9 11.27 Overcast OVC010 11.1 8.3 11.1 8.9 83% 76.94 1025.8
06 11:52 Vrbl 7 9.66 Fog/Mist OVC008 10 7.8 86% 9 76.99 1026.2
06 10:52 E 7 4.83 Fog/Mist OVC004 9.4 8.3 93% 9 76.94 1025.9
06 09:52 E 11 3.22 Fog/Mist OVC004 8.9 8.3 96% 7 76.94 1025.6
06 08:52 E 9 0.80 Fog OVC002 8.9 8.3 96% 8 76.91 1025.4
06 07:52 E 7 0.80 Fog VV002 8.9 8.3 96% 8 76.86 1024.5
06 06:52 E 9 1.61 Fog/Mist OVC002 8.9 8.9 10.6 8.9 100% 8 76.78 1023.6 0.03
06 05:52 E 9 4.83 Fog/Mist OVC003 9.4 8.9 97% 8 76.76 1023.5
06 04:52 E 9 4.83 Fog/Mist OVC004 10 9.4 96% 9 76.71 1022.7
06 03:52 NE 7 8.05 Fog/Mist BKN004 BKN009 OVC100 10 9.4 96% 9 76.68 1022.1 0.03
06 02:52 Calm 8.05 Light Rain Fog/Mist OVC100 10 10 100% 76.66 1021.9
06 01:52 E 7 8.05 Light Rain Fog/Mist BKN070 OVC100 10.6 10 96% 76.63 1021.7 0.03
06 00:52 Calm 8.05 Fog/Mist BKN008 OVC110 10.6 10 12.8 10 96% 76.66 1022.0 0.05 0.58
05 23:52 Calm 8.05 Light Rain Fog/Mist OVC100 10.6 10 96% 76.58 1021.1
05 22:52 E 11 8.05 Light Rain Fog/Mist BKN100 OVC130 10.6 10 96% 76.56 1020.6 0.48
05 21:52 E 13 12.87 Light Rain FEW017CB BKN023 OVC030 11.7 10.6 93% 76.66 1022.0 0.05 0.05
05 20:52 Calm 11.27 Overcast OVC100 11.1 9.4 89% 76.5 1020.1
05 19:52 E 9 14.48 Overcast BKN110 OVC180 12.2 9.4 83% 76.48 1019.6
05 18:52 NE 11 12.87 Mostly Cloudy FEW060 SCT180 BKN220 12.8 9.4 16.1 12.2 80% 76.48 1019.5
05 17:52 E 9 12.87 Mostly Cloudy FEW060 SCT120 BKN180 BKN250 13.9 10 78% 76.45 1019.2
05 16:52 E 11 14.48 Mostly Cloudy FEW080 BKN250 15.6 11.1 75% 76.45 1019.3
05 15:52 NW 6 14.48 Mostly Cloudy FEW080 BKN250 15.6 11.1 75% 76.48 1019.6
05 14:52 NW 6 11.27 Mostly Cloudy FEW015 BKN250 15 10.6 75% 76.5 1019.9
05 13:52 Calm 8.05 Mostly Cloudy with Haze BKN013 BKN250 14.4 10.6 78% 76.5 1020.1
05 12:52 Calm 6.44 Fog/Mist OVC005 12.2 10 12.2 7.8 87% 76.58 1021.0
05 11:52 N 6 4.83 Fog/Mist OVC005 10 9.4 96% 76.66 1021.9
05 10:52 Calm 3.22 Fog/Mist OVC004 9.4 9.4 100% 76.68 1022.2
05 09:52 Calm 1.21 Fog VV004 8.9 8.9 100% 76.68 1022.2
05 08:52 Calm 0.40 Fog VV001 8.9 8.3 96% 76.66 1022.0
05 07:52 E 6 0.21 Fog VV001 7.8 7.8 100% 76.63 1021.7
05 06:52 Calm 0.21 Fog VV001 7.8 7.8 8.3 7.8 100% 76.61 1021.3
05 05:52 SE 6 0.21 Fog VV001 7.8 7.8 100% 76.58 1021.1
05 04:52 E 7 0.21 Fog VV001 7.8 7.8 100% 7 76.61 1021.2
05 03:52 E 6 0.21 Fog VV001 7.8 7.8 100% 76.61 1021.4
05 02:52 E 6 0.40 Fog VV002 8.3 7.8 97% 76.63 1021.6
05 01:52 E 7 1.21 Fog/Mist OVC004 8.3 7.8 97% 7 76.68 1022.5
05 00:52 Calm 1.21 Fog/Mist OVC003 8.3 8.3 9.4 8.3 100% 76.73 1023.0 0.03
04 23:52 Calm 0.80 Fog BKN002 OVC050 8.9 8.3 96% 76.73 1023.1
04 22:52 Calm 0.80 Fog OVC002 8.9 8.3 96% 76.73 1023.2 0.03
04 21:52 Calm 0.21 Light Rain Fog VV001 8.9 8.9 100% 76.78 1023.6
04 20:52 Calm 0.40 Fog VV003 8.9 8.9 100% 76.81 1023.9
04 19:52 NE 7 1.61 Fog/Mist OVC003 9.4 8.9 97% 9 76.81 1024.0
04 18:52 N 6 3.22 Fog/Mist OVC002 9.4 8.9 10.6 8.3 97% 76.84 1024.5 0.05
04 17:52 Vrbl 7 3.22 Fog/Mist OVC003 9.4 8.9 97% 9 76.76 1023.4
04 16:52 NE 11 8.05 Fog/Mist OVC004 10 8.9 93% 9 76.73 1023.0
04 15:52 N 9 8.05 Fog/Mist BKN006 OVC011 10 8.9 93% 9 76.76 1023.3 0.05 0.05
04 14:52 N 9 2.41 Fog/Mist OVC005 8.9 8.3 96% 8 76.76 1023.6
04 13:52 W 7 1.61 Light Rain Fog/Mist OVC004 8.3 7.8 97% 7 76.78 1023.8
04 12:52 N 11 11.27 Overcast FEW010 BKN050 OVC070 9.4 8.3 11.7 6.1 93% 8 76.81 1024.0
04 11:52 N 11 8.05 Light Rain Fog/Mist FEW050 BKN060 OVC075 9.4 8.3 93% 8 76.81 1024.1
04 10:52 Calm 16.09 Overcast OVC090 11.1 7.8 80% 76.84 1024.4
04 09:52 N 6 16.09 Mostly Cloudy BKN095 10.6 8.3 86% 76.81 1024.3
04 08:52 Calm 12.87 Mostly Cloudy BKN080 BKN150 9.4 7.2 86% 76.81 1024.0
04 07:52 Calm 8.05 Fog/Mist BKN080 OVC110 7.2 6.7 97% 76.78 1023.8
04 06:52 SW 6 9.66 Fog/Mist BKN110 BKN180 6.7 6.1 7.2 6.1 96% 76.78 1023.6
04 05:52 Calm 4.83 Fog/Mist OVC085 6.7 6.1 96% 76.73 1023.0
04 04:52 Calm 4.83 Fog/Mist OVC090 6.7 6.1 96% 76.73 1023.1
04 03:52 S 9 4.83 Fog/Mist OVC070 6.7 6.1 96% 5 76.73 1023.1
04 02:52 Calm 4.83 Fog/Mist OVC060 6.7 6.1 96% 76.76 1023.3
04 01:52 SW 7 4.83 Fog/Mist OVC009 6.7 6.1 96% 6 76.78 1023.8
04 00:52 S 9 4.83 Fog/Mist OVC007 6.7 5.6 6.7 3.9 93% 5 76.76 1023.5 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)