Weather observations for the past three days for
Washington/Dulles International Airport, DC
Imperial (Metric)
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
13 15:52 SE 16 G 22 10.00 Thunderstorm FEW020 SCT037CB SCT070 BKN130 BKN160 BKN250 84.9 75.9 75% 94 30.02 1016.1
13 14:52 E 15 10.00 Mostly Cloudy BKN037CB BKN090 BKN160 BKN250 84 73 70% 90 30.03 1016.6
13 13:52 Calm 10.00 Mostly Cloudy BKN030 88 73.9 89.1 77 63% 97 30.03 1016.6
13 12:52 SW 7 10.00 Partly Cloudy SCT025 SCT050 84.9 75 72% 93 30.05 1017.1
13 11:52 SW 9 10.00 Mostly Cloudy SCT025 BKN050 BKN150 86 75.9 72% 96 30.06 1017.4
13 10:52 S 3 10.00 Mostly Cloudy FEW015 SCT026 BKN050 BKN150 82.9 73.9 74% 89 30.07 1017.8
13 09:52 S 6 10.00 Mostly Cloudy SCT014 BKN023 BKN050 BKN150 80.1 73.9 82% 85 30.07 1018.0
13 08:52 SE 6 10.00 Mostly Cloudy FEW012 SCT021 BKN055 BKN150 78.1 75 90% 81 30.07 1017.8
13 07:52 SE 3 10.00 Mostly Cloudy FEW007 SCT021 BKN055 BKN150 77 75 77 73 94% 78 30.06 1017.7
13 06:52 NW 3 9.00 Mostly Cloudy FEW006 SCT020 BKN050 BKN120 75.9 73.9 94% 75 30.05 1017.4
13 05:52 SE 5 8.00 Partly Cloudy SCT039 SCT120 73.9 73 97% 30.03 1016.6
13 04:52 Calm 10.00 Partly Cloudy SCT039 73.9 73 97% 30.03 1016.6
13 03:52 SE 3 10.00 A Few Clouds FEW028 73.9 72 94% 30.02 1016.2
13 02:52 S 6 10.00 Mostly Cloudy FEW018 BKN030 73.9 72 94% 30.03 1016.4
13 01:52 S 5 10.00 Mostly Cloudy SCT120 BKN250 73.9 72 75.9 73 94% 30.03 1016.5
13 00:52 S 5 10.00 Partly Cloudy FEW022 SCT250 75 73 94% 73 30.04 1017.0
12 23:52 SE 3 10.00 Mostly Cloudy FEW170 BKN250 73.9 73 97% 30.05 1017.1
12 22:52 Calm 10.00 Mostly Cloudy FEW060 FEW110 SCT170 BKN250 75 73 94% 73 30.06 1017.6
12 21:52 S 5 10.00 Mostly Cloudy BKN050 BKN170 BKN250 73 72 96% 30.06 1017.7
12 20:52 Calm 10.00 Mostly Cloudy FEW045 SCT075 BKN150 BKN250 73 71.1 94% 30.03 1016.7
12 19:52 S 6 10.00 Mostly Cloudy FEW035 SCT070 SCT130 BKN180 BKN250 75.9 71.1 89.1 73.9 85% 76 30.01 1016.0 0.02
12 18:52 Vrbl 6 10.00 Thunderstorm SCT030CB BKN065 BKN120 BKN150 BKN250 75 69.1 82% 75 30.01 1016.1
12 17:52 SW 9 8.00 Thunderstorm Light Rain SCT015 BKN030CB BKN050 BKN130 BKN150 BKN250 77 73.9 90% 78 30.01 1015.8 0.02
12 16:52 E 12 10.00 Thunderstorm BKN035CB BKN055 BKN150 BKN250 86 73.9 67% 94 29.97 1014.6
12 15:52 NE 15 G 25 10.00 Thunderstorm BKN039CB BKN065 BKN150 BKN250 84 73.9 72% 91 30 1015.4
12 14:52 SE 8 10.00 Thunderstorm BKN041CB BKN065 BKN150 BKN250 88 75 66% 98 30 1015.6
12 13:52 SE 6 10.00 Mostly Cloudy FEW038TCU BKN055 BKN085 88 73 90 78.1 61% 96 30.02 1016.2
12 12:52 Vrbl 3 10.00 Mostly Cloudy SCT028TCU BKN060 BKN140 88 75 66% 98 30.04 1016.9
12 11:52 Vrbl 3 10.00 Mostly Cloudy SCT028TCU BKN050 BKN140 88 77 70% 100 30.05 1017.2
12 10:52 SE 8 10.00 Mostly Cloudy FEW040 SCT090 BKN250 84.9 75.9 75% 94 30.05 1017.3
12 09:52 Calm 10.00 Mostly Cloudy BKN043 BKN110 BKN250 82 75.9 82% 89 30.06 1017.7
12 08:52 Calm 10.00 Mostly Cloudy SCT030 BKN130 BKN250 81 75.9 85% 87 30.06 1017.4
12 07:52 Calm 10.00 Partly Cloudy SCT035 SCT130 78.1 75.9 78.1 72 93% 81 30.05 1017.3
12 06:52 E 5 8.00 Partly Cloudy SCT035 SCT120 75.9 75 97% 75 30.03 1016.5
12 05:52 SE 5 10.00 Partly Cloudy SCT040 SCT120 75 73.9 96% 73 30.03 1016.5
12 04:52 E 5 10.00 Mostly Cloudy BKN042 BKN120 73 73 100% 30.03 1016.5
12 03:52 Calm 10.00 Partly Cloudy FEW040 SCT120 73.9 73 97% 30.03 1016.4
12 02:52 Calm 10.00 A Few Clouds FEW060 73 73 100% 30.03 1016.4
12 01:52 Calm 10.00 Fair CLR 73.9 73.9 78.1 73.9 100% 30.03 1016.5
12 00:52 SE 5 10.00 A Few Clouds FEW080 75 73.9 96% 73 30.03 1016.6
11 23:52 Calm 10.00 A Few Clouds FEW080 FEW250 77 75 94% 78 30.03 1016.6
11 22:52 Calm 10.00 Partly Cloudy FEW040 FEW080 SCT250 77 75 94% 78 30.02 1016.2
11 21:52 SE 6 10.00 Mostly Cloudy FEW042 SCT080 BKN250 77 75 94% 78 30.01 1016.0
11 20:52 SE 6 10.00 Mostly Cloudy FEW050 SCT085 BKN140 BKN250 77 73.9 90% 78 30 1015.4
11 19:52 Vrbl 5 3.00 Thunderstorm Light Rain BKN046CB BKN075 BKN100 BKN250 77 71.1 90 75 82% 79 29.99 1015.4 0.33 0.33
11 18:52 SE 13 G 24 10.00 Thunderstorm SCT049CB SCT065 BKN100 BKN250 81 70 69% 84 29.98 1014.9
11 17:52 SE 7 10.00 Mostly Cloudy SCT049TCU SCT100 BKN250 86 72 63% 92 29.97 1014.7
11 16:52 E 5 10.00 Mostly Cloudy SCT050CB BKN100 BKN250 89.1 71.1 55% 95 29.97 1014.6
11 15:52 Vrbl 6 10.00 Mostly Cloudy BKN055TCU BKN100 BKN250 90 71.1 54% 96 29.99 1015.1
11 14:52 S 5 10.00 Mostly Cloudy BKN060TCU BKN090 BKN250 86 72 63% 92 30 1015.4
11 13:52 Vrbl 6 10.00 Mostly Cloudy SCT040TCU BKN065 BKN250 88 71.1 88 77 57% 94 30.01 1015.8
11 12:52 E 5 10.00 Mostly Cloudy SCT035 BKN060 BKN075 87.1 73 63% 95 30.02 1016.1
11 11:52 SE 5 10.00 Mostly Cloudy BKN030 BKN050 84.9 72 65% 91 30.03 1016.4
11 10:52 Calm 10.00 Mostly Cloudy SCT028 BKN038 84 71.1 65% 89 30.02 1016.2
11 09:52 SE 3 10.00 Partly Cloudy SCT025 SCT130 82.9 72 70% 88 30.02 1016.2
11 08:52 Calm 10.00 Partly Cloudy FEW030 SCT130 80.1 73.9 82% 85 30.03 1016.4
11 07:52 Calm 10.00 A Few Clouds FEW033 FEW090 77 73 77 69.1 88% 78 30 1015.4
11 06:52 Calm 7.00 A Few Clouds FEW100 72 71.1 97% 29.98 1015.1
11 05:52 Calm 7.00 A Few Clouds FEW250 70 69.1 97% 29.97 1014.7
11 04:52 Calm 7.00 Fair CLR 70 70 100% 29.97 1014.5
11 03:52 Calm 8.00 Fair CLR 71.1 71.1 100% 29.97 1014.5
11 02:52 SE 3 8.00 Fair CLR 71.1 71.1 100% 29.97 1014.6
11 01:52 Calm 9.00 A Few Clouds FEW120 72 71.1 82 71.1 97% 29.97 1014.7
11 00:52 SE 3 10.00 A Few Clouds FEW120 73 72 96% 29.98 1014.8
10 23:52 Calm 10.00 A Few Clouds FEW120 73 71.1 94% 29.98 1014.9
10 22:52 Calm 10.00 A Few Clouds FEW120 75 72 90% 74 29.98 1014.8
10 21:52 S 6 10.00 Partly Cloudy FEW045 SCT120 78.1 72 82% 80 29.97 1014.5
10 20:52 S 7 10.00 Mostly Cloudy FEW043TCU SCT120 BKN250 79 72 79% 82 29.95 1014.0
10 19:52 S 3 10.00 Mostly Cloudy FEW043 SCT120 BKN250 82 71.1 87.1 80.1 69% 86 29.94 1013.5
10 18:52 E 7 10.00 Mostly Cloudy SCT043 BKN120 BKN250 84 71.1 65% 89 29.92 1013.0
10 17:52 Calm 10.00 Mostly Cloudy FEW038 BKN120 BKN250 84.9 68 57% 88 29.93 1013.1
10 16:52 SW 6 10.00 Overcast SCT030 BKN120 OVC250 84 70 63% 88 29.94 1013.3
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)