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 00:52 Calm 10.00 Mostly Cloudy FEW085 BKN140 BKN250 73 71.1 94% 29.9 1012.0
12 23:52 SW 5 10.00 Overcast FEW070 SCT085 BKN110 OVC180 73.9 72 94% 29.92 1012.7
12 22:52 S 8 10.00 Overcast FEW040 BKN090 BKN180 OVC250 73.9 72 94% 29.9 1012.1
12 21:52 S 3 10.00 Overcast FEW044CB BKN100 OVC200 72 71.1 97% 29.88 1011.5
12 20:52 SW 8 10.00 Mostly Cloudy FEW027CB BKN055 BKN120 72 70 94% 29.85 1010.6
12 19:52 SE 7 10.00 Mostly Cloudy FEW019CB SCT055 BKN090 BKN150 72 70 93.9 72 94% 29.83 1009.7 0.26 0.29
12 18:52 W 28 G 52 2.00 Thunderstorm Rain and Windy SCT023 BKN046CB OVC090 82.9 75 77% 90 29.81 1009.0
12 17:52 S 5 10.00 Mostly Cloudy FEW019 SCT055CB BKN120 82.9 75 77% 90 29.78 1008.0 0.01
12 16:52 E 5 7.00 Mostly Cloudy SCT055CB BKN120 82.9 73.9 74% 89 29.78 1008.1 0.02 0.02
12 15:52 SW 6 10.00 Mostly Cloudy BKN055CB BKN120 91.9 71.1 51% 99 29.79 1008.3
12 14:52 SW 7 10.00 Mostly Cloudy SCT065 BKN080 93 70 47% 99 29.79 1008.5
12 13:52 NW 10 10.00 Mostly Cloudy SCT060 BKN120 91.9 68 93.9 73.9 46% 96 29.81 1008.9
12 12:52 Vrbl 7 10.00 Partly Cloudy FEW050 SCT080 SCT250 91.9 69.1 47% 97 29.81 1009.1
12 11:52 Vrbl 7 10.00 Mostly Cloudy FEW050 BKN080 BKN250 91.9 70 49% 98 29.81 1009.1
12 10:52 S 9 10.00 A Few Clouds FEW090 FEW250 88 72 59% 95 29.81 1009.1
12 09:52 S 9 10.00 A Few Clouds FEW090 FEW250 84.9 72 65% 91 29.82 1009.3
12 08:52 SW 12 10.00 A Few Clouds FEW090 FEW250 81 71.1 72% 85 29.82 1009.5
12 07:52 S 7 10.00 A Few Clouds FEW140 FEW250 73.9 69.1 73.9 69.1 85% 29.83 1009.8
12 06:52 S 5 10.00 A Few Clouds FEW170 FEW250 73 68 84% 29.83 1009.8
12 05:52 S 5 10.00 Fair CLR 70 66.9 90% 29.83 1009.7
12 04:52 S 3 10.00 A Few Clouds FEW120 70 68 93% 29.83 1009.7
12 03:52 Calm 10.00 Partly Cloudy SCT110 70 68 93% 29.84 1009.9
12 02:52 S 3 10.00 Partly Cloudy FEW080 SCT230 70 68 93% 29.83 1009.9
12 01:52 Calm 10.00 Partly Cloudy FEW080 SCT230 70 69.1 82 69.1 97% 29.84 1010.1 0.19
12 00:52 Calm 10.00 Mostly Cloudy BKN230 71.1 70 96% 29.85 1010.3
11 23:52 Calm 10.00 Overcast OVC150 72 71.1 97% 29.84 1010.1
11 22:52 S 3 10.00 Overcast OVC200 72 70 94% 29.85 1010.5 0.19
11 21:52 Calm 10.00 Light Rain SCT045CB OVC100 73 70 90% 29.85 1010.5 0.04
11 20:52 S 6 10.00 Light Rain FEW028 BKN040CB OVC080 72 71.1 97% 29.86 1010.7 0.15
11 19:52 W 28 G 51 6.00 Thunderstorm Light Rain Squalls and Windy BKN040CB BKN080 OVC250 82.9 64.9 93.9 82.9 55% 85 29.84 1010.2
11 18:52 SW 7 10.00 Mostly Cloudy FEW050 BKN250 91.9 71.1 51% 99 29.78 1008.1
11 17:52 SW 8 10.00 Mostly Cloudy FEW050 BKN250 93.9 72 49% 102 29.79 1008.3
11 16:52 SW 10 10.00 Overcast FEW050 OVC250 93 72 50% 101 29.8 1008.7
11 15:52 W 10 10.00 Overcast FEW048 OVC250 93 71.1 49% 100 29.81 1009.1
11 14:52 SW 9 10.00 Mostly Cloudy SCT048 BKN250 93.9 72 49% 102 29.83 1009.7
11 13:52 W 9 G 20 10.00 Mostly Cloudy SCT048 BKN250 93 72 93 79 50% 101 29.84 1010.2
11 12:52 W 9 10.00 Mostly Cloudy SCT048 BKN250 91 72 54% 99 29.85 1010.5
11 11:52 W 7 G 17 10.00 Mostly Cloudy SCT044 BKN250 90 72 56% 97 29.87 1010.9
11 10:52 W 6 10.00 Mostly Cloudy FEW038 FEW130 BKN250 89.1 73 59% 97 29.87 1011.0
11 09:52 Vrbl 6 10.00 Mostly Cloudy FEW050 FEW160 BKN250 86 72 63% 92 29.88 1011.4
11 08:52 Calm 10.00 Mostly Cloudy FEW140 BKN230 84.9 72 65% 91 29.89 1011.6
11 07:52 SW 3 10.00 Partly Cloudy FEW140 SCT230 79 72 79 72 79% 82 29.89 1011.6
11 06:52 Vrbl 6 10.00 Mostly Cloudy SCT140 BKN230 73.9 71.1 91% 29.86 1011.0
11 05:52 S 7 10.00 Mostly Cloudy SCT140 BKN250 73 71.1 94% 29.83 1009.9
11 04:52 S 3 10.00 Mostly Cloudy SCT140 BKN250 72 71.1 97% 29.83 1009.9
11 03:52 Calm 10.00 Fair CLR 73 71.1 94% 29.84 1010.0
11 02:52 S 3 10.00 Fair CLR 73 71.1 94% 29.84 1010.1
11 01:52 S 3 10.00 Partly Cloudy SCT080 73.9 72 81 73 94% 29.85 1010.3
11 00:52 S 5 10.00 A Few Clouds FEW060 73.9 72 94% 29.86 1010.6
10 23:52 S 6 10.00 Fair CLR 75.9 73 91% 76 29.86 1010.6
10 22:52 S 8 10.00 Fair CLR 75.9 73 91% 76 29.87 1011.2
10 21:52 S 7 10.00 Fair CLR 78.1 73.9 87% 81 29.85 1010.6
10 20:52 S 6 10.00 Partly Cloudy FEW050 FEW100 SCT200 78.1 73.9 87% 81 29.84 1010.1
10 19:52 S 7 10.00 Partly Cloudy FEW050 SCT100 SCT200 81 73.9 88 71.1 79% 86 29.83 1009.8 0.34
10 18:52 S 7 10.00 Partly Cloudy FEW045 FEW100 SCT200 80.1 73.9 82% 85 29.82 1009.5
10 17:52 S 7 10.00 Partly Cloudy FEW045 SCT100 SCT200 81 73.9 79% 86 29.83 1009.7
10 16:52 NE 3 10.00 Mostly Cloudy FEW044 BKN100 BKN250 75.9 71.1 85% 76 29.85 1010.5 0.19 0.34
10 15:52 W 7 G 21 0.75 Heavy Rain Fog/Mist BKN019 OVC030 71.1 70 96% 29.89 1011.8 0.15
10 14:52 SW 13 G 21 10.00 Mostly Cloudy SCT030 BKN080 BKN250 84 73 70% 90 29.87 1011.2
10 13:52 S 14 G 24 10.00 Mostly Cloudy FEW080 BKN140 BKN250 86 73 87.1 71.1 65% 93 29.87 1011.0 0.01
10 12:52 SW 14 10.00 Mostly Cloudy FEW020 BKN110 BKN250 84 73 70% 90 29.91 1012.4
10 11:52 S 13 G 23 10.00 Mostly Cloudy SCT015 BKN070 BKN250 81 72 74% 85 29.92 1012.8
10 10:52 SW 14 G 21 7.00 Mostly Cloudy BKN011 BKN075 78.1 72 82% 80 29.94 1013.6 0.01
10 09:52 SW 10 6.00 Fog/Mist BKN009 BKN075 73.9 71.1 91% 29.96 1014.2
10 08:52 S 8 5.00 Light Rain Fog/Mist BKN007 OVC050 72 70 94% 29.98 1014.7 0.01
10 07:52 S 8 5.00 Light Rain Fog/Mist FEW006 SCT029 OVC050 71.1 70 73.9 69.1 96% 29.97 1014.5 0.04 0.22
10 06:52 S 9 4.00 Fog/Mist SCT029 OVC048 70 68 93% 29.97 1014.7 0.18
10 05:52 SW 8 10.00 Overcast BKN080 OVC130 72 64 76% 29.97 1014.7
10 04:52 S 7 10.00 Overcast BKN080 OVC130 72 63 73% 29.96 1014.4
10 03:52 S 7 10.00 Overcast SCT170 OVC190 72 63 73% 29.98 1014.9
10 02:52 S 7 10.00 Overcast FEW070 OVC210 73 63 71% 30 1015.6
10 01:52 S 8 10.00 Overcast OVC190 73.9 63 78.1 73.9 69% 30.02 1016.2
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)