National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
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.
26 20:52 Vrbl 3 10.00 Mostly Cloudy SCT060 BKN160 BKN250 75.9 55.9 50% 78 30.11 1019.2
26 19:52 E 6 10.00 Mostly Cloudy SCT060 BKN200 BKN250 79 57 84.9 79 47% 80 30.1 1019.0
26 18:52 E 6 10.00 Mostly Cloudy SCT065 BKN200 BKN250 81 57 44% 81 30.09 1018.7
26 17:52 Vrbl 6 10.00 Mostly Cloudy SCT065 BKN250 82 55.9 41% 82 30.09 1018.5
26 16:52 Calm 10.00 Mostly Cloudy FEW060 SCT080 BKN250 82.9 55.9 40% 82 30.1 1019.0
26 15:52 SE 8 10.00 Mostly Cloudy FEW060 FEW100 SCT190 BKN250 82.9 55 38% 82 30.11 1019.1
26 14:52 Vrbl 6 10.00 Mostly Cloudy FEW080 FEW120 SCT200 BKN250 84 55.9 38% 83 30.13 1019.8
26 13:52 NE 9 10.00 Mostly Cloudy FEW070 FEW120 SCT200 BKN250 82 53.1 82.9 71.1 37% 81 30.15 1020.5
26 12:52 NE 10 10.00 Mostly Cloudy BKN065 BKN100 BKN250 81 51.1 35% 80 30.16 1021.1
26 11:52 Vrbl 6 10.00 Mostly Cloudy SCT055 SCT090 BKN180 BKN250 80.1 53.1 39% 80 30.17 1021.5
26 10:52 NE 10 10.00 Mostly Cloudy SCT045 BKN075 BKN220 78.1 55 45% 79 30.18 1021.8
26 09:52 NE 9 10.00 Mostly Cloudy BKN046 BKN070 75 55 50% 78 30.19 1021.9
26 08:52 NE 12 10.00 Mostly Cloudy BKN045 BKN080 BKN130 73.9 57 56% 30.18 1021.8
26 07:52 NE 9 10.00 Mostly Cloudy BKN038 BKN075 BKN120 72 59 73.9 71.1 64% 30.16 1021.1
26 06:52 NE 8 10.00 Mostly Cloudy SCT035 BKN075 BKN110 71.1 57 61% 30.14 1020.3
26 05:52 NE 7 10.00 Mostly Cloudy SCT034 BKN075 BKN100 71.1 59 66% 30.13 1020.0
26 04:52 N 9 10.00 Overcast OVC070 73 64 74% 30.11 1019.2
26 03:52 N 10 10.00 Mostly Cloudy SCT070 BKN085 73.9 66.9 79% 30.1 1018.9
26 02:52 NW 3 10.00 Mostly Cloudy BKN075 73 68 84% 30.1 1018.9
26 01:52 N 7 10.00 Overcast SCT010 OVC070 73.9 69.1 78.1 71.1 85% 30.1 1018.9
26 00:52 N 3 10.00 Overcast BKN067 OVC075 73.9 70 88% 30.1 1019.0
25 23:52 SW 5 7.00 Partly Cloudy SCT250 72 70 94% 30.1 1019.0
25 22:52 Calm 8.00 Partly Cloudy SCT250 73.9 71.1 91% 30.11 1019.3
25 21:52 S 5 10.00 Mostly Cloudy BKN120 75 71.1 88% 75 30.11 1019.4
25 20:52 S 5 10.00 Mostly Cloudy FEW037 SCT090 BKN200 75.9 72 88% 76 30.09 1018.6
25 19:52 S 5 7.00 Light Rain FEW033 SCT070 OVC110 78.1 73 86 78.1 85% 81 30.07 1018.0
25 18:52 SE 8 10.00 Mostly Cloudy FEW043 BKN065 BKN140 82 66.9 60% 85 30.06 1017.7
25 17:52 Calm 10.00 Mostly Cloudy SCT040 BKN090 BKN140 82.9 66.9 59% 86 30.05 1017.3
25 16:52 Vrbl 3 10.00 Overcast FEW038 BKN090 OVC140 82.9 66.9 59% 86 30.06 1017.5
25 15:52 W 6 10.00 Overcast SCT033CB OVC100 84 66.9 57% 87 30.06 1017.5
25 14:52 NW 7 10.00 Overcast FEW033 OVC120 82.9 66.9 59% 86 30.07 1018.0
25 13:52 NW 7 10.00 Overcast SCT044 BKN100 OVC200 84.9 66 87.1 75 53% 87 30.1 1018.8
25 12:52 Vrbl 6 10.00 Overcast FEW045 BKN120 OVC220 84.9 66 53% 87 30.1 1019.0
25 11:52 NW 9 10.00 Overcast FEW045 BKN110 OVC200 84.9 66.9 55% 88 30.12 1019.6
25 10:52 NW 6 10.00 Overcast FEW048 BKN130 OVC220 82 66.9 60% 85 30.13 1019.9
25 09:52 W 5 10.00 Overcast FEW048 BKN140 OVC200 81 69.1 67% 84 30.12 1019.7
25 08:52 NW 3 10.00 Overcast FEW048 SCT070 OVC140 78.1 71.1 79% 80 30.12 1019.5
25 07:52 W 3 10.00 Overcast SCT048 BKN065 OVC085 75 72 75 72 90% 74 30.11 1019.4
25 06:52 S 6 10.00 Overcast FEW090 OVC130 73.9 72 94% 30.09 1018.8
25 05:52 S 5 10.00 Overcast SCT110 BKN120 OVC140 73.9 72 94% 30.1 1018.9
25 03:52 S 3 10.00 Light Rain SCT100 OVC120 73.9 73 97% 30.09 1018.7
25 02:52 Calm 8.00 Overcast OVC150 73 71.1 94% 30.1 1018.8
25 01:52 Calm 7.00 Overcast OVC200 72 71.1 77 72 97% 30.1 1018.8
25 00:52 S 5 10.00 Overcast OVC230 73 72 96% 30.1 1018.9
24 23:52 Calm 10.00 Mostly Cloudy SCT095 BKN240 73 71.1 94% 30.1 1018.9
24 22:52 Calm 10.00 A Few Clouds FEW095 73.9 72 94% 30.11 1019.5
24 21:52 Calm 10.00 Mostly Cloudy SCT085 BKN150 73.9 72 94% 30.11 1019.4
24 20:52 Calm 10.00 Mostly Cloudy SCT080 BKN140 75.9 73 91% 76 30.1 1019.0
24 19:52 S 5 10.00 Mostly Cloudy FEW044 BKN080 BKN140 77 73.9 89.1 73.9 90% 78 30.09 1018.6 0.21
24 18:52 S 5 10.00 Light Rain FEW042TCU BKN075 OVC120 77 73.9 90% 78 30.07 1018.0
24 17:52 Calm 10.00 Overcast OVC070 77 72 85% 78 30.08 1018.4
24 16:52 Calm 7.00 Overcast FEW013 BKN031CB BKN065 OVC150 75.9 73 91% 76 30.09 1018.5 0.21 0.21
24 15:52 N 13 10.00 Mostly Cloudy BKN040CB BKN080 BKN150 81 70 69% 84 30.09 1018.7
24 14:52 S 6 10.00 Mostly Cloudy BKN038TCU BKN090 BKN150 86 70 59% 91 30.1 1018.8
24 13:52 SW 6 10.00 Mostly Cloudy SCT026 BKN100 BKN200 86 70 86 73.9 59% 91 30.11 1019.4
24 12:52 S 3 10.00 Overcast FEW015 BKN100 OVC200 82.9 70 65% 87 30.12 1019.6
24 11:52 N 3 10.00 Overcast FEW012 SCT050 BKN100 OVC200 84 72 67% 90 30.13 1019.8
24 10:52 NW 3 10.00 Overcast SCT009 BKN050 OVC150 79 73 82% 82 30.12 1019.7
24 09:52 Calm 10.00 Mostly Cloudy BKN007 BKN120 77 73 88% 78 30.11 1019.5
24 08:52 S 3 10.00 Overcast SCT006 OVC110 75 73 94% 73 30.11 1019.1
24 07:52 SW 5 10.00 Overcast BKN006 OVC100 73.9 72 73.9 73 94% 30.11 1019.1
24 06:52 Calm 10.00 Overcast BKN009 OVC100 73.9 72 94% 30.1 1018.8
24 05:52 Calm 10.00 Overcast SCT010 OVC120 73 71.1 94% 30.1 1018.9
24 04:52 SE 5 10.00 Light Rain FEW090 OVC110 73.9 72 94% 30.09 1018.5
24 03:52 SE 5 10.00 Light Rain OVC110 73.9 72 94% 30.09 1018.5
24 02:52 Calm 10.00 Overcast FEW010 FEW050 OVC120 73 72 96% 30.09 1018.6
24 01:52 Calm 10.00 Overcast FEW010 OVC130 73.9 72 84.9 73 94% 30.09 1018.6 0.01 0.13
24 00:52 S 3 10.00 Partly Cloudy SCT120 73.9 72 94% 30.1 1018.9
23 23:52 SW 3 10.00 Light Rain FEW010 OVC150 73.9 72 94% 30.11 1019.4 0.02
23 22:52 S 8 7.00 Rain FEW015 BKN120 OVC140 75 72 90% 74 30.12 1019.8 0.06 0.1
23 21:52 S 8 8.00 Light Rain FEW080 BKN110 OVC150 77 73 88% 78 30.1 1019.0 0.04
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)