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.
30 23:52 S 15 16.09 Partly Cloudy FEW120 SCT250 28.3 23.3 74% 32 75.97 1012.3
30 22:52 SW 17 16.09 Partly Cloudy SCT120 SCT250 28.9 23.3 72% 33 76 1012.6
30 21:52 S 11 G 28 16.09 A Few Clouds FEW250 29.4 23.3 70% 34 75.95 1011.9
30 20:52 S 13 16.09 Mostly Cloudy FEW050TCU SCT140 BKN250 29.4 23.3 70% 34 75.92 1011.7
30 19:52 S 17 16.09 Mostly Cloudy FEW050TCU BKN120 BKN250 31.1 23.3 33.3 31.1 63% 36 75.92 1011.8
30 18:52 S 15 16.09 Mostly Cloudy FEW045TCU BKN120 BKN250 31.7 23.9 63% 37 75.87 1011.1
30 17:52 S 15 G 30 16.09 Mostly Cloudy SCT044 BKN120 BKN250 31.7 23.3 61% 37 75.92 1011.7
30 16:52 S 17 G 31 16.09 Mostly Cloudy SCT044 BKN120 BKN250 31.7 23.3 61% 37 75.95 1012.0
30 15:52 SW 20 16.09 Overcast BKN042 BKN150 OVC250 33.3 23.3 56% 39 75.97 1012.5
30 14:52 SW 19 16.09 Mostly Cloudy FEW038 BKN150 BKN250 33.3 23.9 58% 39 76.02 1013.0
30 13:52 SW 13 16.09 Mostly Cloudy SCT037 BKN150 BKN250 32.8 23.9 32.8 25 59% 39 76.07 1013.9
30 12:52 Calm 16.09 Mostly Cloudy FEW030 BKN160 BKN250 31.7 23.3 61% 37 76.15 1014.8
30 11:52 SW 15 16.09 Mostly Cloudy FEW030 BKN250 30.6 23.3 65% 35 76.17 1015.2
30 10:52 S 9 16.09 Mostly Cloudy FEW030 BKN250 29.4 23.3 70% 34 76.2 1015.5
30 09:52 SW 7 16.09 Mostly Cloudy BKN130 BKN150 BKN250 27.8 23.3 77% 31 76.2 1015.5
30 08:52 SE 6 16.09 Mostly Cloudy BKN130 BKN150 BKN250 26.7 22.8 79% 29 76.23 1015.8
30 07:52 Calm 16.09 Mostly Cloudy BKN130 BKN160 BKN250 25 22.8 25 22.2 88% 26 76.2 1015.5
30 06:52 Calm 16.09 Mostly Cloudy BKN130 BKN160 23.9 22.2 90% 23 76.2 1015.4
30 05:52 S 7 16.09 Mostly Cloudy BKN140 BKN180 22.8 21.7 94% 76.17 1015.3
30 04:52 SW 7 16.09 Mostly Cloudy BKN140 23.3 21.7 91% 76.17 1015.0
30 03:52 SE 6 16.09 Mostly Cloudy BKN180 23.3 21.7 91% 76.17 1015.1
30 02:52 Calm 16.09 Mostly Cloudy BKN180 22.8 21.1 90% 76.17 1015.1
30 01:52 Calm 16.09 Mostly Cloudy FEW120 BKN180 23.3 21.7 28.3 22.8 91% 76.15 1014.9
30 00:52 Calm 16.09 Mostly Cloudy FEW120 BKN250 23.3 21.1 88% 76.17 1015.1
29 23:52 Calm 16.09 Mostly Cloudy FEW120 BKN250 23.3 21.1 88% 76.2 1015.5
29 22:52 SW 11 16.09 Mostly Cloudy FEW120 BKN180 BKN250 24.4 21.1 82% 25 76.2 1015.4
29 21:52 SW 7 16.09 Mostly Cloudy FEW120 BKN180 BKN250 26.1 21.7 77% 28 76.17 1015.2
29 20:52 W 6 16.09 Mostly Cloudy FEW060 SCT120 BKN180 BKN250 27.2 21.7 72% 29 76.15 1014.9
29 19:52 Calm 16.09 Light Rain SCT060 BKN180 BKN250 28.3 23.9 33.3 28.3 77% 32 76.15 1014.9
29 18:52 SW 7 16.09 Mostly Cloudy SCT050 BKN180 BKN250 30 22.8 65% 34 76.12 1014.4
29 17:52 W 9 16.09 Mostly Cloudy SCT050 SCT180 BKN250 31.1 22.2 59% 35 76.1 1014.1
29 16:52 SW 6 16.09 Mostly Cloudy SCT049 SCT180 BKN250 31.7 21.7 55% 35 76.1 1014.1
29 15:52 NW 9 16.09 Mostly Cloudy SCT047 BKN250 32.8 21.7 52% 36 76.15 1014.8
29 14:52 Calm 16.09 Mostly Cloudy SCT050 BKN250 32.2 22.2 56% 36 76.2 1015.5
29 13:52 Vrbl 9 16.09 Partly Cloudy SCT050 SCT250 31.7 22.2 32.2 25 57% 36 76.25 1016.0
29 12:52 Vrbl 6 16.09 Partly Cloudy SCT042 SCT250 31.7 21.7 55% 35 76.25 1016.1
29 11:52 N 7 16.09 A Few Clouds FEW037 FEW250 30.6 21.7 59% 34 76.28 1016.5
29 10:52 NW 17 16.09 A Few Clouds FEW250 30 22.2 63% 33 76.3 1016.7
29 09:52 NW 9 16.09 Partly Cloudy FEW030 SCT070 28.9 22.2 67% 32 76.3 1016.9
29 08:52 NW 9 16.09 A Few Clouds FEW030 FEW080 26.7 21.7 74% 29 76.33 1017.2
29 07:52 NW 7 16.09 A Few Clouds FEW130 FEW250 25 21.7 25 21.1 82% 26 76.3 1017.0
29 06:52 Calm 16.09 A Few Clouds FEW130 FEW250 22.8 21.7 94% 76.28 1016.4
29 05:52 Calm 16.09 A Few Clouds FEW130 FEW250 21.1 20.6 97% 76.23 1015.9
29 04:52 Calm 16.09 Mostly Cloudy BKN130 BKN250 21.7 21.1 96% 76.2 1015.6
29 03:52 Calm 16.09 Partly Cloudy FEW140 SCT250 21.7 20.6 94% 76.2 1015.4
29 02:52 Calm 16.09 Mostly Cloudy FEW140 BKN250 21.7 20.6 94% 76.2 1015.4
29 01:52 Calm 16.09 Partly Cloudy FEW160 SCT250 22.2 21.1 27.8 22.2 94% 76.2 1015.6
29 00:52 Calm 16.09 Partly Cloudy FEW080 FEW160 SCT250 22.8 21.1 90% 76.25 1016.1
28 23:52 Calm 16.09 Mostly Cloudy FEW080 FEW160 BKN250 23.3 21.1 88% 76.25 1016.2
28 22:52 S 6 16.09 Mostly Cloudy SCT120 BKN160 BKN220 23.9 22.2 90% 23 76.25 1016.1
28 21:52 Calm 16.09 Mostly Cloudy FEW040 FEW120 BKN220 25 22.2 85% 26 76.25 1016.4
28 20:52 NW 17 16.09 Overcast FEW029 BKN035CB BKN120 BKN160 OVC210 25.6 22.2 82% 27 76.25 1016.2
28 19:52 W 7 16.09 Mostly Cloudy FEW038 SCT047 BKN110 27.8 25 32.2 27.8 85% 32 76.2 1015.6 0.03 0.03
28 18:52 S 9 16.09 Thunderstorm FEW038CB SCT120 BKN160 BKN250 28.9 24.4 77% 34 76.17 1015.3
28 17:52 S 9 16.09 Mostly Cloudy SCT040CB SCT120 BKN160 BKN250 30.6 23.9 67% 36 76.17 1015.0
28 16:52 S 13 16.09 Partly Cloudy FEW040 SCT250 32.2 23.3 59% 37 76.15 1014.8
28 15:52 Vrbl 6 16.09 Partly Cloudy FEW030 SCT250 31.1 23.3 63% 36 76.2 1015.5
28 14:52 Vrbl 9 16.09 A Few Clouds FEW030 30.6 23.3 65% 35 76.28 1016.5
28 13:52 SW 15 16.09 Partly Cloudy SCT024 29.4 23.3 30 22.2 70% 34 76.35 1017.5
28 12:52 S 13 16.09 Partly Cloudy SCT020 28.3 23.3 74% 32 76.38 1017.9
28 11:52 Vrbl 9 16.09 Mostly Cloudy BKN017 BKN021 27.2 22.8 77% 30 76.4 1018.4
28 10:52 S 11 16.09 Overcast OVC013 25 22.2 85% 26 76.48 1019.3
28 09:52 S 11 16.09 Overcast OVC012 24.4 22.2 88% 25 76.48 1019.2
28 08:52 Calm 16.09 NULL NULL 23.3 21.7 91% 76.48 1019.4
28 07:52 Calm 16.09 Overcast BKN007 OVC012 22.2 21.1 22.2 21.1 94% 76.48 1019.3
28 06:52 SE 9 16.09 Mostly Cloudy BKN004 BKN009 21.7 21.1 96% 76.43 1018.7
28 05:52 Calm 2.01 Fog/Mist OVC003 21.1 21.1 100% 76.45 1019.0
28 04:52 Calm 2.01 Fog/Mist OVC003 21.1 21.1 100% 76.43 1018.8
28 03:52 S 6 2.41 Fog/Mist OVC003 21.1 20.6 97% 76.43 1018.6
28 02:52 Calm 2.82 Fog/Mist OVC004 21.1 20.6 97% 76.48 1019.6
28 01:52 Calm 9.66 Fog/Mist OVC004 21.1 20.6 21.1 20.6 97% 76.5 1019.8
28 00:52 S 6 6.44 Fog/Mist OVC004 21.1 20.6 97% 76.58 1020.8
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)