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.
27 12:52 NW 6 11.27 Light Rain SCT020 BKN045 BKN120 23.3 20.6 85% 76.07 1013.8 0.03
27 11:52 N 7 11.27 Overcast SCT014 BKN028 OVC120 25 19.4 71% 26 76.12 1014.7
27 10:52 NW 11 11.27 Mostly Cloudy BKN012 BKN015 BKN055 23.9 20.6 82% 24 76.12 1014.7
27 09:52 NW 9 8.05 Fog/Mist BKN006 BKN012 OVC050 22.8 21.1 90% 76.12 1014.7
27 08:52 S 6 3.22 Fog/Mist BKN003 OVC008 21.7 20.6 94% 76.1 1014.3
27 07:52 S 6 2.41 Fog/Mist OVC003 21.1 20.6 21.1 20 97% 76.12 1014.5 0.03
27 06:52 Calm 2.41 Fog/Mist OVC003 21.1 20.6 97% 76.12 1014.5
27 05:52 S 6 9.66 Fog/Mist OVC004 20.6 20 96% 76.12 1014.5
27 04:52 S 6 12.87 Overcast OVC007 21.1 20 93% 76.12 1014.6 0.03
27 03:52 S 7 11.27 Light Rain OVC010 20.6 20 96% 76.15 1014.8 0.03
27 02:52 SE 7 12.87 Overcast OVC011 20.6 20 96% 76.15 1014.9
27 01:52 Calm 12.87 Overcast OVC012 20 19.4 22.8 20 96% 76.2 1015.7
27 00:52 S 6 14.48 Overcast BKN015 OVC120 20.6 19.4 93% 76.25 1016.2
26 23:52 Calm 16.09 Overcast OVC100 20.6 20 96% 76.28 1016.8
26 22:52 SW 7 16.09 Overcast OVC120 21.1 19.4 90% 76.35 1017.6
26 21:52 S 6 16.09 Mostly Cloudy BKN100 21.7 20 90% 76.35 1017.5
26 20:52 S 6 16.09 Overcast BKN110 OVC140 21.7 19.4 87% 76.33 1017.5
26 19:52 S 7 16.09 Light Rain FEW025 SCT036 BKN140 OVC200 22.8 19.4 24.4 22.2 81% 76.35 1017.6
26 18:52 S 7 16.09 Overcast FEW028 BKN032 BKN055 OVC180 23.3 18.9 76% 76.35 1017.6
26 17:52 SE 6 16.09 Overcast FEW028 OVC033 23.9 18.3 71% 25 76.38 1017.9
26 16:52 SE 6 16.09 Mostly Cloudy SCT032 BKN040 BKN180 23.9 18.3 71% 25 76.38 1018.1
26 15:52 Calm 16.09 Overcast FEW020 OVC045 23.3 18.3 74% 76.43 1018.7
26 14:52 E 6 16.09 Light Rain FEW015 SCT030 OVC050 22.2 18.9 82% 76.48 1019.4
26 13:52 E 6 11.27 Overcast SCT011 OVC055 22.2 18.9 22.2 19.4 82% 76.53 1020.2 0.15
26 12:52 E 11 11.27 Overcast FEW011 OVC055 21.7 18.9 84% 76.58 1020.8
26 11:52 E 9 9.66 Light Rain Fog/Mist SCT009 OVC055 21.1 19.4 90% 76.61 1021.1 0.03
26 10:52 E 11 9.66 Rain Fog/Mist SCT008 BKN075 OVC100 21.1 19.4 90% 76.61 1021.1 0.03 0.13
26 09:52 Calm 8.05 Fog/Mist SCT018 OVC055 21.1 20 93% 76.61 1021.1 0.05
26 08:52 NE 6 4.83 Light Rain Fog/Mist BKN010 BKN016 OVC065 20 19.4 96% 76.58 1020.8 0.05
26 07:52 Calm 4.83 Light Rain Fog/Mist SCT009 OVC070 19.4 19.4 19.4 16.7 100% 76.58 1020.6 0.05 0.05
26 06:52 Calm 4.83 Light Rain Fog/Mist SCT010 SCT055 OVC080 18.3 18.3 100% 76.5 1019.9
26 05:52 Calm 11.27 Mostly Cloudy BKN100 17.8 17.8 100% 76.43 1018.8
26 04:52 Calm 6.44 Fog/Mist BKN008 OVC012 17.2 17.2 100% 76.4 1018.2
26 03:52 Calm 8.05 Fog/Mist BKN006 BKN010 OVC100 17.8 17.8 100% 76.35 1017.9
26 02:52 Calm 8.05 Fog/Mist SCT005 OVC200 18.9 18.9 100% 76.38 1017.8
26 01:52 Calm 8.05 Fog/Mist FEW005 OVC200 18.9 18.3 22.8 18.3 96% 76.4 1018.3
26 00:52 Calm 9.66 Fog/Mist FEW035 OVC190 18.9 18.9 100% 76.43 1018.7
25 23:52 Calm 14.48 Overcast FEW035 BKN130 OVC200 19.4 19.4 100% 76.45 1019.0
25 22:52 Calm 12.87 Overcast FEW035 OVC130 20 19.4 96% 76.45 1019.0
25 21:52 Calm 16.09 Mostly Cloudy FEW035 BKN100 BKN200 21.1 20 93% 76.43 1018.9
25 20:52 E 7 16.09 Mostly Cloudy FEW035 BKN100 BKN200 21.7 20 90% 76.4 1018.5
25 19:52 E 6 16.09 Overcast FEW035 BKN100 OVC200 22.8 20 25 22.8 84% 76.38 1018.0
25 18:52 E 7 16.09 Mostly Cloudy FEW034 BKN080 BKN200 23.3 19.4 79% 76.35 1017.8
25 17:52 NE 9 16.09 Mostly Cloudy FEW028 BKN100 BKN200 23.9 18.9 74% 25 76.35 1017.7
25 16:52 NE 9 16.09 Mostly Cloudy FEW022 SCT060 BKN120 BKN200 24.4 18.9 72% 25 76.35 1017.7
25 15:52 N 13 16.09 Overcast SCT017 BKN055 OVC200 23.9 18.9 74% 25 76.38 1018.1
25 14:52 NW 9 16.09 Overcast BKN012 BKN070 OVC200 23.9 20 79% 24 76.4 1018.4
25 13:52 N 7 12.87 Overcast SCT009 SCT012 BKN070 OVC130 22.8 20 22.8 18.3 84% 76.45 1019.0 0.1
25 12:52 Vrbl 9 11.27 Overcast FEW003 BKN006 OVC012 21.7 20 90% 76.5 1019.6 0.08
25 11:52 W 7 11.27 Overcast OVC007 21.7 20 90% 76.5 1019.7
25 10:52 W 7 4.02 Fog/Mist OVC005 20.6 19.4 93% 76.5 1019.8 0.03
25 09:52 S 9 1.21 Light Rain Fog/Mist OVC003 19.4 18.9 97% 76.48 1019.4
25 08:52 S 7 0.80 Light Rain Fog/Mist OVC003 18.3 18.3 100% 76.45 1019.1 0.03
25 07:52 SW 7 0.80 Fog/Mist OVC003 18.3 17.8 18.3 16.7 97% 76.45 1019.2 0.08
25 06:52 Calm 0.80 Fog/Mist OVC003 17.8 17.2 96% 76.45 1019.2
25 05:52 Calm 0.80 Fog VV003 17.2 17.2 100% 76.43 1018.6
25 04:52 Calm 0.80 Light Rain Fog VV002 17.2 17.2 100% 76.43 1018.6 0.03 0.08
25 03:52 S 7 0.80 Light Rain Fog VV002 17.2 16.7 97% 76.43 1018.7 0.05
25 02:52 Calm 1.61 Light Rain Fog/Mist OVC002 16.7 16.7 100% 76.43 1018.8
25 01:52 S 6 11.27 Overcast BKN004 OVC016 16.7 16.1 17.2 16.7 96% 76.48 1019.4
25 00:52 SE 7 11.27 Overcast BKN004 OVC009 16.7 16.1 96% 76.53 1020.1
24 23:52 SE 7 11.27 Overcast BKN005 BKN010 OVC024 16.7 16.1 96% 76.56 1020.4
24 22:52 E 9 1.61 Fog/Mist BKN005 OVC024 16.7 16.1 96% 76.61 1021.1
24 21:52 E 9 1.61 Fog/Mist BKN003 OVC006 16.7 16.1 96% 76.63 1021.4
24 20:52 SE 6 2.41 Fog/Mist BKN005 OVC009 17.2 16.7 97% 76.61 1021.2
24 19:52 SE 9 8.05 Fog/Mist SCT007 OVC012 17.2 16.1 17.8 16.7 93% 76.61 1021.3
24 18:52 E 6 12.87 Overcast OVC012 17.8 15.6 87% 76.58 1021.0
24 17:52 E 11 16.09 Overcast OVC012 17.8 15.6 87% 76.58 1020.7
24 16:52 NE 9 16.09 Overcast OVC012 17.8 15 84% 76.63 1021.6
24 15:52 E 6 16.09 Overcast OVC012 17.8 15 84% 76.66 1021.9
24 13:52 Calm 16.09 Overcast OVC009 16.7 13.9 16.7 11.7 84% 76.76 1023.3
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)