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.
12 19:52 S 6 10.00 Mostly Cloudy FEW040 SCT090 BKN120 BKN250 75 64.9 84.9 73.9 71% 77 30.17 1021.3 0.23
12 18:52 S 7 10.00 Mostly Cloudy FEW040 SCT070 BKN100 BKN250 75 64.9 71% 77 30.17 1021.3
12 17:52 S 9 10.00 Mostly Cloudy FEW040 SCT065 BKN100 BKN250 75.9 66.9 74% 77 30.15 1020.8
12 16:52 S 12 10.00 Mostly Cloudy FEW031 BKN038 BKN065 BKN250 73.9 68 82% 30.14 1020.4 0.23 0.23
12 15:52 E 13 G 22 10.00 Mostly Cloudy SCT035CB BKN044 BKN250 78.1 68 71% 80 30.13 1020.1
12 14:52 E 10 10.00 Mostly Cloudy FEW030TCU SCT044 BKN110 BKN250 84 70 63% 88 30.13 1019.8
12 13:52 NE 9 10.00 Mostly Cloudy SCT030TCU SCT044 BKN110 BKN250 81 70 82 73.9 69% 84 30.14 1020.3
12 12:52 Vrbl 6 10.00 Mostly Cloudy SCT028 SCT040 BKN110 BKN250 81 70 69% 84 30.15 1020.8
12 11:52 NE 8 10.00 Mostly Cloudy FEW023 SCT035 BKN110 BKN250 81 70 69% 84 30.16 1021.0
12 10:52 NE 8 10.00 Overcast FEW020 BKN033 OVC100 78.1 70 76% 80 30.15 1020.8
12 09:52 NE 7 10.00 Overcast FEW015 BKN032 OVC039 77 70 79% 79 30.15 1020.6
12 08:52 NE 8 10.00 Overcast FEW013 SCT019 OVC029 75 70 84% 75 30.13 1019.9
12 07:52 NE 6 10.00 Overcast FEW016 OVC031 73.9 71.1 73.9 72 91% 30.11 1019.2
12 06:52 N 7 10.00 Overcast FEW016 BKN027 OVC031 73 70 90% 30.09 1018.6
12 05:52 N 7 10.00 Overcast OVC021 73 70 90% 30.07 1018.0
12 04:52 N 7 10.00 Overcast OVC018 73.9 71.1 91% 30.06 1017.5
12 03:52 N 5 10.00 Overcast SCT015 BKN140 OVC250 73 71.1 94% 30.04 1016.9
12 02:52 N 7 10.00 Overcast BKN019 OVC250 73 71.1 94% 30.03 1016.5
12 01:52 NE 8 10.00 Overcast SCT017 OVC023 73.9 71.1 82.9 70 91% 30.03 1016.5 0.7
12 00:52 N 3 10.00 Mostly Cloudy BKN021 73.9 71.1 91% 30.03 1016.4
11 23:52 NW 5 10.00 Mostly Cloudy FEW100 BKN220 73.9 71.1 91% 30.02 1016.2
11 22:52 SE 6 10.00 Light Rain SCT060CB BKN085 OVC100 72 70 94% 29.99 1015.4 0.53 0.7
11 21:52 NE 23 G 32 3.00 Thunderstorm Heavy Rain Fog/Mist and Breezy FEW016 BKN037CB OVC060 75 72 90% 74 29.98 1015.0 0.17
11 20:52 Calm 10.00 Overcast SCT040 SCT130 BKN180 OVC220 82 71.1 69% 86 29.95 1013.9
11 19:52 NW 6 10.00 Overcast FEW040 FEW065 SCT130 BKN180 OVC220 82.9 70 88 82.9 65% 87 29.95 1013.7
11 18:52 NW 7 10.00 Mostly Cloudy FEW043 FEW140 BKN180 84 69.1 61% 88 29.93 1013.1
11 17:52 NW 12 10.00 Mostly Cloudy FEW043 SCT150 BKN210 86 69.1 57% 90 29.92 1012.8
11 16:52 NW 9 G 17 10.00 Mostly Cloudy FEW043 SCT150 BKN210 87.1 69.1 55% 91 29.92 1012.7
11 15:52 NW 8 10.00 Mostly Cloudy FEW040 SCT150 BKN200 87.1 68 53% 91 29.92 1012.8
11 14:52 NW 13 10.00 Mostly Cloudy FEW039TCU SCT150 BKN210 87.1 69.1 55% 91 29.94 1013.4
11 13:52 NW 7 10.00 Mostly Cloudy FEW033 SCT046 BKN180 BKN250 84.9 69.1 87.1 75 59% 89 29.95 1013.9
11 12:52 W 7 10.00 Mostly Cloudy FEW031 FEW070 SCT110 SCT180 BKN250 84 69.1 61% 88 29.97 1014.5
11 11:52 W 8 10.00 Mostly Cloudy FEW031 FEW070 SCT180 BKN250 82.9 70 65% 87 29.97 1014.6
11 10:52 NW 8 10.00 Mostly Cloudy FEW040 FEW130 SCT180 BKN250 82 69.1 65% 85 29.96 1014.3
11 09:52 Vrbl 5 10.00 Mostly Cloudy FEW120 SCT190 BKN250 81 70 69% 84 29.96 1014.2
11 08:52 NW 6 10.00 Mostly Cloudy FEW120 SCT160 BKN250 78.1 68 71% 80 29.97 1014.4
11 07:52 N 6 10.00 Mostly Cloudy FEW070 BKN100 BKN150 BKN240 75 68 75 70 79% 76 29.95 1013.9
11 06:52 N 6 10.00 Mostly Cloudy FEW075 BKN100 BKN120 BKN150 BKN250 73 68 84% 29.95 1013.8
11 05:52 N 7 10.00 Mostly Cloudy FEW075 BKN100 BKN120 BKN150 72 68 87% 29.93 1013.1
11 04:52 NW 5 10.00 Mostly Cloudy FEW100 BKN150 BKN250 72 68 87% 29.91 1012.3
11 03:52 NW 5 10.00 Mostly Cloudy FEW110 BKN250 72 69.1 91% 29.91 1012.5
11 02:52 NW 3 10.00 Mostly Cloudy SCT110 BKN250 71.1 70 96% 29.91 1012.5
11 01:52 SW 3 10.00 Mostly Cloudy SCT110 BKN250 71.1 70 73.9 70 96% 29.92 1013.0
11 00:52 E 3 10.00 Mostly Cloudy FEW032 FEW110 BKN250 70 69.1 97% 29.93 1013.2
10 23:52 Calm 10.00 Partly Cloudy FEW080 SCT250 70 70 100% 29.93 1013.3
10 22:52 E 3 10.00 Partly Cloudy FEW080 SCT250 71.1 70 96% 29.93 1013.1
10 21:52 Calm 10.00 Mostly Cloudy FEW120 SCT170 BKN250 72 71.1 97% 29.9 1012.3
10 20:52 S 3 10.00 Mostly Cloudy FEW040 FEW075 SCT095 SCT170 BKN250 72 71.1 97% 29.89 1012.0
10 19:52 SE 8 10.00 Mostly Cloudy FEW035 FEW070 SCT110 BKN250 73.9 71.1 86 73 91% 29.91 1012.4 0.02
10 18:52 S 10 4.00 Light Rain Fog/Mist FEW006 SCT031CB BKN095 BKN220 73 71.1 94% 29.9 1012.0 0.02
10 17:52 NW 3 10.00 Mostly Cloudy FEW060 SCT110 BKN220 84 70 63% 88 29.88 1011.4
10 16:52 Calm 10.00 Mostly Cloudy FEW060 SCT140 BKN180 BKN250 84.9 71.1 63% 90 29.89 1011.9
10 15:52 S 3 10.00 Light Rain FEW040 FEW070 BKN110 OVC140 82 73 74% 87 29.89 1011.9
10 14:52 SW 3 10.00 Overcast FEW040 OVC140 82.9 71.1 67% 88 29.9 1012.3
10 13:52 Vrbl 3 10.00 Overcast FEW110 BKN140 OVC250 84 70 84.9 75.9 63% 88 29.91 1012.7
10 12:52 SW 7 7.00 Mostly Cloudy SCT110 BKN160 BKN250 84 70 63% 88 29.92 1012.8
10 11:52 W 7 10.00 Mostly Cloudy SCT110 BKN160 BKN220 84 71.1 65% 89 29.92 1012.9
10 10:52 W 5 10.00 Mostly Cloudy SCT110 BKN160 BKN250 82.9 69.1 63% 87 29.92 1012.8
10 09:52 W 5 10.00 Mostly Cloudy FEW130 SCT180 BKN250 82.9 69.1 63% 87 29.92 1012.8
10 08:52 NW 5 10.00 Mostly Cloudy FEW120 SCT180 BKN250 81 69.1 67% 84 29.92 1012.8
10 07:52 Calm 10.00 Mostly Cloudy BKN200 75.9 69.1 77 68 79% 77 29.91 1012.5
10 06:52 Calm 10.00 Fair CLR 70 69.1 97% 29.88 1011.6
10 05:52 Vrbl 3 10.00 Fair CLR 69.1 68 96% 29.89 1011.7
10 04:52 Vrbl 3 10.00 Fair CLR 69.1 68 96% 29.87 1011.1
10 03:52 W 3 10.00 Fair CLR 71.1 69.1 94% 29.86 1011.0
10 02:52 SW 3 9.00 Fair CLR 71.1 70 96% 29.86 1010.8
10 01:52 SE 3 7.00 Mostly Cloudy BKN170 71.1 71.1 75.9 71.1 100% 29.86 1010.8
10 00:52 Calm 6.00 Fog/Mist CLR 73 72 96% 29.87 1011.2
09 23:52 S 3 7.00 Partly Cloudy SCT190 73 72 96% 29.87 1011.3
09 22:52 Calm 8.00 A Few Clouds FEW180 73 73 100% 29.89 1011.7
09 21:52 Calm 10.00 A Few Clouds FEW070 FEW100 73 73 100% 29.88 1011.4
09 20:52 Calm 10.00 Mostly Cloudy FEW020 BKN070 BKN100 75 73 94% 73 29.86 1011.0
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)