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.
02 11:52 S 6 3.00 Light Rain Fog/Mist BKN019 BKN026 OVC032 77 73.9 90% 78 29.85 1010.6 0.1
02 10:52 SE 8 10.00 Mostly Cloudy BKN019 BKN200 77 73.9 90% 78 29.86 1010.7 0.03 0.03
02 09:52 S 8 G 18 10.00 Light Rain BKN018 BKN034 OVC100 77 72 85% 78 29.87 1011.0
02 08:52 Vrbl 7 10.00 Overcast OVC017 77 71.1 82% 79 29.88 1011.3
02 07:52 S 9 10.00 Mostly Cloudy BKN028 BKN036 BKN110 BKN150 75.9 70 77 75 82% 77 29.86 1010.9
02 06:52 SE 8 10.00 Mostly Cloudy SCT020 BKN050 BKN120 BKN160 75 69.1 82% 75 29.87 1011.1
02 05:52 SE 8 10.00 Mostly Cloudy BKN020 75 68 79% 76 29.87 1011.1
02 04:52 SE 8 10.00 Overcast FEW020 FEW070 OVC100 75 68 79% 76 29.87 1011.2
02 03:52 S 7 10.00 Overcast FEW070 OVC100 75.9 66.9 74% 77 29.87 1011.1
02 02:52 S 6 10.00 Overcast SCT060 OVC110 75.9 66.9 74% 77 29.88 1011.4
02 01:52 S 7 10.00 Overcast FEW060 BKN120 OVC150 77 66.9 82 77 71% 79 29.89 1011.8
02 00:52 S 8 10.00 Light Rain FEW046 FEW060 SCT110 SCT130 OVC150 79 66.9 67% 81 29.9 1012.0
01 23:52 S 13 10.00 Overcast OVC180 79 66.9 67% 81 29.89 1011.9
01 22:52 S 12 G 21 10.00 Overcast FEW050 SCT090 BKN190 OVC240 79 69.1 72% 82 29.88 1011.6
01 21:52 SE 9 10.00 Mostly Cloudy FEW085 SCT110 BKN220 79 70 74% 82 29.88 1011.4
01 20:52 SE 10 10.00 Overcast FEW050 SCT075 BKN110 BKN220 OVC250 81 68 65% 84 29.87 1010.9
01 19:52 SE 9 10.00 Mostly Cloudy FEW050 SCT065 BKN120 BKN250 82 69.1 87.1 82 65% 85 29.86 1010.9
01 18:52 S 10 10.00 Mostly Cloudy FEW050 FEW070 SCT120 BKN220 BKN250 84 69.1 61% 88 29.86 1011.0
01 17:52 S 9 G 18 10.00 Overcast FEW050 FEW075 SCT090 BKN210 OVC250 84 68 59% 87 29.87 1011.1
01 16:52 SE 10 10.00 Overcast FEW050 SCT085 BKN200 OVC250 84.9 66.9 55% 88 29.88 1011.6
01 15:52 SW 8 10.00 Mostly Cloudy FEW050 FEW075 SCT200 BKN250 86 64 48% 87 29.89 1012.0
01 14:52 SE 8 10.00 Mostly Cloudy FEW055 SCT075 BKN250 84.9 66 53% 87 29.91 1012.5
01 13:52 S 10 G 18 10.00 Mostly Cloudy FEW055 FEW070 SCT220 BKN250 86 64 87.1 73 48% 87 29.92 1012.8
01 12:52 SW 9 10.00 Mostly Cloudy FEW080 SCT180 BKN220 BKN250 84.9 66 53% 87 29.93 1013.3
01 11:52 SW 6 10.00 Mostly Cloudy FEW080 SCT180 BKN220 BKN250 82.9 66 57% 85 29.94 1013.6
01 10:52 Vrbl 6 10.00 Mostly Cloudy FEW150 BKN220 81 66.9 62% 83 29.94 1013.7
01 09:52 Calm 10.00 Mostly Cloudy FEW150 BKN250 79 66.9 67% 81 29.94 1013.6
01 08:52 S 6 10.00 Mostly Cloudy FEW070 FEW150 BKN250 75.9 66.9 74% 77 29.95 1014.0
01 07:52 S 3 10.00 Mostly Cloudy FEW070 BKN250 73 66.9 73 64.9 81% 29.95 1013.9
01 06:52 Calm 10.00 Mostly Cloudy SCT070 BKN250 68 64 87% 29.95 1014.0
01 05:52 S 3 10.00 Partly Cloudy FEW060 SCT250 66 63 90% 29.94 1013.6
01 04:52 SE 5 10.00 Mostly Cloudy SCT060 BKN250 68 62.1 81% 29.95 1013.8
01 03:52 Calm 10.00 Partly Cloudy FEW080 SCT250 66.9 62.1 84% 29.95 1014.0
01 02:52 SE 5 10.00 Mostly Cloudy SCT080 BKN250 69.1 62.1 78% 29.96 1014.3
01 01:52 SE 3 10.00 Mostly Cloudy FEW180 BKN250 66 62.1 82.9 66 87% 29.96 1014.3
01 00:52 Calm 10.00 Partly Cloudy FEW080 SCT250 68 62.1 81% 29.97 1014.5
31 23:52 SW 5 10.00 Partly Cloudy SCT250 73 62.1 69% 29.96 1014.2
31 22:52 S 5 10.00 Partly Cloudy SCT250 72 62.1 71% 29.96 1014.1
31 21:52 E 3 10.00 Partly Cloudy SCT250 70 62.1 76% 29.96 1014.2
31 20:52 Calm 9.00 Partly Cloudy FEW070 SCT250 72 63 73% 29.95 1013.8
31 19:52 W 6 10.00 A Few Clouds FEW070 82.9 60.1 88 82.9 46% 83 29.94 1013.5
31 18:52 W 3 10.00 Fair CLR 86 59 40% 85 29.94 1013.7
31 17:52 Vrbl 6 10.00 Fair CLR 87.1 60.1 40% 87 29.95 1013.9
31 16:52 SW 5 10.00 A Few Clouds FEW065 87.1 59 39% 86 29.96 1014.2
31 15:52 NW 8 9.00 A Few Clouds FEW070 87.1 60.1 40% 87 29.97 1014.6
31 14:52 W 5 10.00 Partly Cloudy SCT040 86 62.1 45% 87 29.97 1014.6
31 13:52 Vrbl 3 10.00 Mostly Cloudy SCT037 BKN055 84 62.1 84.9 73 48% 85 29.98 1014.9
31 12:52 Vrbl 7 10.00 Mostly Cloudy SCT038 BKN055 82 62.1 51% 83 30 1015.6
31 11:52 Vrbl 7 10.00 Partly Cloudy SCT038 82.9 63 51% 84 30.01 1015.8
31 10:52 NW 8 10.00 A Few Clouds FEW038 81 64 57% 83 30.01 1015.9
31 09:52 Vrbl 7 10.00 A Few Clouds FEW050 78.1 63 60% 80 30.01 1015.9
31 08:52 N 6 10.00 Fair CLR 75.9 62.1 62% 78 30.01 1015.9
31 07:52 N 6 10.00 Fair CLR 73 61 73 64.9 66% 30.01 1015.8
31 06:52 NW 5 10.00 Fair CLR 69.1 60.1 73% 30 1015.7
31 05:52 W 3 10.00 A Few Clouds FEW080 66 60.1 81% 30 1015.5
31 04:52 NW 5 10.00 A Few Clouds FEW080 70 59 68% 29.98 1015.0
31 03:52 W 3 10.00 Partly Cloudy SCT080 68 61 78% 29.98 1014.8
31 02:52 Calm 10.00 Mostly Cloudy BKN080 72 61 68% 29.97 1014.7
31 01:52 W 6 10.00 Mostly Cloudy BKN080 73 62.1 80.1 72 69% 29.97 1014.5
31 00:52 Calm 10.00 Overcast OVC080 73.9 63 69% 29.97 1014.4
30 23:52 NW 5 10.00 Overcast OVC080 77 62.1 60% 79 29.96 1014.1
30 22:52 NW 6 10.00 Overcast OVC080 79 61 54% 80 29.95 1014.0
30 21:52 NW 5 10.00 Overcast OVC080 79 61 54% 80 29.94 1013.7
30 20:52 N 8 10.00 Overcast OVC075 80.1 60.1 51% 81 29.92 1012.9
30 19:52 NW 12 10.00 Overcast FEW060 OVC075 80.1 60.1 84.9 80.1 51% 81 29.91 1012.7
30 18:52 NW 13 10.00 Overcast FEW060 OVC075 81 60.1 49% 82 29.9 1012.2
30 17:52 NW 13 10.00 Mostly Cloudy FEW060 BKN075 82 60.1 47% 82 29.89 1011.9
30 16:52 NW 15 G 26 10.00 Mostly Cloudy FEW060 BKN075 82.9 60.1 46% 83 29.87 1011.3
30 15:52 NW 15 G 23 10.00 Mostly Cloudy BKN065 BKN080 84.9 61 45% 85 29.87 1011.2
30 14:52 NW 15 G 23 10.00 Mostly Cloudy BKN060 BKN075 82.9 60.1 46% 83 29.87 1011.1
30 13:52 N 14 G 26 10.00 Mostly Cloudy BKN055 BKN075 82.9 59 84 70 44% 83 29.87 1011.1
30 12:52 NW 16 G 24 9.00 Partly Cloudy SCT050 SCT250 82 59 46% 82 29.87 1011.1
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)