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.
28 14:52 N 22 G 37 16.09 Mostly Cloudy BKN075 25.6 8.9 35% 26 76.07 1013.9
28 13:52 N 20 G 39 16.09 Partly Cloudy SCT070 25 8.9 25.6 21.7 36% 26 76.1 1014.4
28 12:52 N 30 G 46 16.09 A Few Clouds FEW055 25 9.4 37% 26 76.12 1014.5
28 11:52 NW 30 G 48 16.09 A Few Clouds FEW055 24.4 10 40% 25 76.12 1014.5
28 10:52 N 24 G 44 16.09 A Few Clouds FEW055 23.9 8.9 39% 25 76.1 1014.2
28 09:52 NW 17 G 35 16.09 A Few Clouds FEW140 22.8 11.1 48% 76.1 1014.2
28 08:52 NW 22 G 37 16.09 A Few Clouds FEW045 FEW140 22.2 13.9 59% 76.05 1013.7
28 07:52 N 15 G 28 16.09 A Few Clouds FEW045 FEW150 21.7 14.4 21.7 19.4 63% 76.02 1013.2
28 06:52 NW 7 16.09 A Few Clouds FEW075 FEW160 20.6 16.1 76% 75.97 1012.6
28 05:52 NW 11 16.09 Mostly Cloudy BKN075 20.6 17.2 81% 75.92 1011.8
28 04:52 NW 15 16.09 Partly Cloudy SCT110 20.6 17.8 84% 75.87 1011.2
28 03:52 NW 9 16.09 Mostly Cloudy BKN110 20.6 18.3 87% 75.84 1010.8
28 02:52 W 6 16.09 Light Rain OVC100 20.6 18.3 87% 75.84 1010.8
28 01:52 Calm 16.09 Mostly Cloudy BKN110 20 18.3 25 19.4 90% 75.82 1010.6 0.15
28 00:52 Calm 16.09 Overcast SCT047 BKN090 OVC110 20.6 18.9 90% 75.87 1011.3 0.03
27 23:52 S 7 16.09 Overcast FEW050 BKN110 OVC140 20 18.9 93% 75.9 1011.7
27 22:52 S 6 16.09 Fair CLR 20 19.4 96% 75.92 1011.7 0.13
27 21:52 SW 6 16.09 Overcast FEW050CB OVC100 21.1 20 93% 75.87 1011.3 0.03
27 20:52 SW 9 11.27 Thunderstorm Light Rain FEW010 BKN050CB OVC100 22.8 22.2 96% 75.87 1011.1 0.1
27 19:52 W 6 16.09 Thunderstorm SCT038CB BKN065 BKN150 25 20 27.8 24.4 74% 26 75.9 1011.4
27 18:52 W 11 16.09 Mostly Cloudy FEW038CB SCT090 BKN150 26.1 18.9 65% 27 75.84 1011.0
27 17:52 N 7 16.09 Mostly Cloudy FEW032 BKN200 27.8 19.4 60% 29 75.84 1011.0
27 16:52 NW 13 16.09 Mostly Cloudy SCT028 BKN150 27.2 20 65% 29 75.87 1011.3
27 15:52 NW 19 G 31 16.09 Mostly Cloudy BKN028 BKN150 26.1 20 69% 27 75.92 1011.8
27 14:52 Vrbl 9 16.09 Mostly Cloudy SCT020 BKN026 BKN150 25 20.6 77% 26 75.95 1012.2
27 13:52 W 9 11.27 Mostly Cloudy SCT022 BKN055 BKN120 24.4 20.6 25.6 21.1 79% 25 76 1012.9 0.03
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
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)