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.
29 21:52 SW 13 16.09 A Few Clouds FEW250 21.1 12.2 57% 75.79 1010.3
29 20:52 SW 9 16.09 A Few Clouds FEW250 21.1 12.2 57% 75.77 1009.9
29 19:52 SW 13 16.09 A Few Clouds FEW250 23.9 12.2 26.1 23.3 48% 25 75.77 1009.8
29 18:52 S 15 16.09 A Few Clouds FEW250 25 11.1 42% 26 75.79 1010.4
29 17:52 SW 15 16.09 A Few Clouds FEW250 25.6 11.1 40% 26 75.87 1011.2
29 16:52 SW 15 16.09 A Few Clouds FEW250 25.6 9.4 36% 26 75.95 1012.1
29 15:52 Vrbl 11 G 30 16.09 A Few Clouds FEW250 25 8.9 36% 26 76.02 1013.2
29 14:52 SW 15 16.09 A Few Clouds FEW250 24.4 9.4 39% 25 76.07 1014.1
29 13:52 N 6 16.09 A Few Clouds FEW250 23.3 8.3 23.9 16.1 38% 76.15 1015.1
29 12:52 Vrbl 7 16.09 A Few Clouds FEW250 22.2 8.3 41% 76.25 1016.3
29 11:52 Vrbl 7 16.09 A Few Clouds FEW250 21.7 6.7 38% 76.35 1017.8
29 10:52 NW 7 16.09 A Few Clouds FEW250 21.7 7.8 41% 76.38 1018.2
29 09:52 NE 9 16.09 A Few Clouds FEW250 20 8.3 47% 76.43 1018.6
29 08:52 Vrbl 7 16.09 A Few Clouds FEW250 18.9 8.3 50% 76.45 1019.1
29 07:52 NW 7 16.09 A Few Clouds FEW250 16.1 8.9 16.7 8.9 63% 76.45 1019.0
29 06:52 Calm 16.09 A Few Clouds FEW250 12.8 9.4 80% 76.43 1018.8
29 05:52 Calm 16.09 Fair CLR 9.4 7.8 90% 76.4 1018.3
29 04:52 Calm 16.09 Fair CLR 11.1 7.8 80% 76.38 1018.1
29 03:52 Calm 16.09 Fair CLR 12.2 8.3 77% 76.38 1017.9
29 02:52 NW 6 16.09 Fair CLR 15 7.8 62% 76.38 1018.0
29 01:52 N 13 16.09 Fair CLR 16.7 7.2 23.9 16.7 54% 76.38 1018.1
29 00:52 NE 15 16.09 Fair CLR 17.2 7.2 52% 76.38 1018.0
28 23:52 NE 15 16.09 Fair CLR 17.8 7.8 52% 76.35 1017.9
28 22:52 NE 15 16.09 Fair CLR 18.9 7.8 49% 76.33 1017.4
28 21:52 NE 20 G 37 16.09 Fair CLR 21.7 8.3 42% 76.25 1016.1
28 20:52 NW 13 16.09 Fair CLR 22.2 7.8 40% 76.15 1014.9
28 19:52 NW 19 G 33 16.09 A Few Clouds FEW080 23.9 7.2 26.7 23.9 34% 25 76.1 1014.2
28 18:52 NW 26 G 44 16.09 Partly Cloudy SCT080 25 7.2 32% 25 76.05 1013.7
28 17:52 N 28 G 43 16.09 Partly Cloudy SCT080 25.6 8.3 33% 26 76.05 1013.7
28 16:52 N 26 G 41 16.09 Partly Cloudy SCT075 26.7 8.3 31% 26 76.05 1013.4
28 15:52 NW 24 G 35 16.09 Partly Cloudy SCT075 26.7 8.9 33% 26 76.05 1013.5
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
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)