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.
20 04:52 S 9 10.00 Overcast OVC038 71.1 64.9 81% 29.99 1015.1
20 03:52 S 8 10.00 Overcast SCT041 BKN060 OVC180 71.1 64.9 81% 29.99 1015.3
19 21:52 SE 9 10.00 Mostly Cloudy BKN037 BKN050 73.9 64 71% 30.08 1018.2
19 20:52 SE 8 10.00 Mostly Cloudy SCT039 BKN060 BKN085 73.9 64 71% 30.08 1018.2
19 19:52 SE 8 10.00 Mostly Cloudy FEW042 SCT060 BKN100 BKN150 75 64 79 75 69% 77 30.06 1017.8
19 18:52 SE 6 10.00 Mostly Cloudy SCT044 BKN050 BKN100 BKN150 75.9 64 67% 78 30.05 1017.3
19 17:52 E 7 10.00 Mostly Cloudy FEW037 SCT046 BKN060 BKN150 77 64 64% 79 30.06 1017.5
19 16:52 SE 7 10.00 Overcast BKN042 OVC055 78.1 63 60% 80 30.07 1017.9
19 15:52 SE 3 10.00 Mostly Cloudy SCT036 BKN042 BKN060 BKN250 77 63 62% 79 30.08 1018.4
19 14:52 Vrbl 3 10.00 Mostly Cloudy SCT037 BKN060 BKN250 77 62.1 60% 79 30.09 1018.7
19 13:52 S 6 10.00 Mostly Cloudy BKN035 BKN055 BKN250 77 62.1 78.1 64.9 60% 79 30.11 1019.3
19 12:52 Calm 10.00 Mostly Cloudy BKN034 BKN060 75.9 61 60% 78 30.13 1020.0
19 11:52 Vrbl 6 10.00 Mostly Cloudy BKN030 BKN250 73.9 60.1 62% 30.14 1020.5
19 10:52 SE 6 10.00 Mostly Cloudy BKN030 BKN060 BKN250 72 57.9 61% 30.15 1020.7
19 09:52 NE 6 10.00 Mostly Cloudy BKN032 BKN060 BKN250 70 57.9 66% 30.15 1020.8
19 08:52 NE 7 10.00 Mostly Cloudy FEW035 SCT080 BKN250 66.9 57 71% 30.15 1020.7
19 07:52 N 6 10.00 Mostly Cloudy SCT060 BKN080 BKN250 64.9 57 70 64.9 76% 30.15 1020.6
19 06:52 N 9 10.00 Mostly Cloudy FEW040 BKN080 BKN250 66 55.9 70% 30.13 1020.1
19 05:52 N 7 10.00 Mostly Cloudy BKN080 66 55.9 70% 30.12 1019.6
19 04:52 NE 8 10.00 Mostly Cloudy BKN070 68 55.9 65% 30.12 1019.5
19 03:52 N 8 10.00 Mostly Cloudy BKN060 68 57 68% 30.11 1019.2
19 02:52 N 6 10.00 A Few Clouds FEW075 69.1 57.9 68% 30.11 1019.3
19 01:52 NE 8 10.00 Mostly Cloudy BKN075 70 57.9 78.1 70 66% 30.11 1019.4
19 00:52 NE 10 10.00 Mostly Cloudy BKN070 72 61 68% 30.12 1019.6
18 23:52 NE 8 10.00 Mostly Cloudy BKN065 73.9 62.1 67% 30.12 1019.4
18 22:52 NE 7 10.00 Mostly Cloudy BKN060 73.9 63 69% 30.12 1019.7
18 21:52 NE 6 10.00 Partly Cloudy SCT075 72 64 76% 30.11 1019.3
18 20:52 NE 8 10.00 Mostly Cloudy BKN080 75 64 69% 77 30.1 1018.9
18 19:52 NE 9 10.00 Partly Cloudy FEW032TCU SCT070 78.1 64 82.9 78.1 62% 80 30.08 1018.4
18 18:52 NE 9 10.00 Partly Cloudy FEW036 SCT075 78.1 66 67% 80 30.07 1018.1
18 17:52 NE 8 10.00 Mostly Cloudy FEW032 BKN075 81 69.1 67% 84 30.07 1017.9
18 16:52 N 9 10.00 Mostly Cloudy SCT040 BKN070 BKN100 81 66.9 62% 83 30.07 1018.1
18 15:52 NE 6 9.00 Overcast BKN040 OVC070 80.1 70 71% 83 30.07 1018.0
18 14:52 N 10 10.00 Overcast BKN036 OVC070 82 68 63% 85 30.08 1018.3
18 12:52 Vrbl 6 10.00 Mostly Cloudy SCT038 BKN047 BKN070 BKN250 84 66.9 57% 87 30.1 1018.9
18 11:52 N 9 10.00 Mostly Cloudy BKN034 BKN047 BKN250 82.9 69.1 63% 87 30.11 1019.5
18 10:52 N 10 10.00 Mostly Cloudy SCT028 BKN036 BKN047 BKN250 81 69.1 67% 84 30.12 1019.8
18 08:52 NW 7 10.00 Partly Cloudy FEW020 FEW100 SCT250 78.1 72 82% 80 30.11 1019.3
18 07:52 Vrbl 6 9.00 Mostly Cloudy FEW050 FEW100 BKN250 73 70 90% 30.11 1019.2
18 06:52 Calm 9.00 Mostly Cloudy SCT050 SCT120 BKN250 72 70 94% 30.1 1019.0
18 05:52 S 3 7.00 A Few Clouds FEW100 73 72 96% 30.08 1018.3
18 04:52 S 3 7.00 A Few Clouds FEW100 73 72 96% 30.08 1018.3
18 03:52 S 5 7.00 Mostly Cloudy BKN100 73 72 96% 30.08 1018.2
18 02:52 S 3 7.00 Mostly Cloudy BKN100 73 72 96% 30.08 1018.3
18 01:52 S 5 7.00 Mostly Cloudy BKN100 BKN200 73 72 73 72 96% 30.08 1018.5
18 00:52 S 5 7.00 Mostly Cloudy BKN200 73 72 96% 30.09 1018.7
17 23:52 S 5 8.00 Mostly Cloudy BKN100 73 72 96% 30.11 1019.3
17 22:52 SW 6 10.00 Overcast FEW065 BKN075 BKN100 OVC250 73 72 96% 30.13 1019.9
17 21:52 Calm 9.00 Mostly Cloudy SCT065 BKN250 73.4 71.6 94% 30.13 0.0
17 20:52 Calm 10.00 Mostly Cloudy FEW065 SCT140 BKN190 BKN240 72 71.1 97% 30.13 1019.9
17 19:52 S 6 10.00 Mostly Cloudy FEW046 SCT060 BKN210 BKN250 73 71.1 82.9 73 94% 30.12 1019.7 0.14
17 18:52 S 7 10.00 Mostly Cloudy FEW044 SCT075 BKN140 BKN210 73.9 72 94% 30.13 1020.2
17 17:52 S 7 10.00 Mostly Cloudy FEW020 SCT044TCU BKN075 BKN190 BKN250 75 72 90% 74 30.14 1020.3
17 16:52 SW 5 10.00 Light Rain FEW020 SCT044 BKN070 BKN160 BKN250 75.9 73.9 94% 75 30.14 1020.3 0.01 0.14
17 15:52 S 3 10.00 Light Rain FEW020 FEW070 SCT110 BKN150 BKN200 BKN250 75.9 73.9 94% 75 30.15 1020.8
17 14:52 S 7 7.00 Light Rain FEW044 SCT070CB BKN120 BKN180 BKN250 75.9 73.9 94% 75 30.18 1021.7 0.13
17 13:52 NE 8 10.00 Thunderstorm FEW040 BKN060CB BKN110 BKN150 BKN250 82.9 71.1 87.1 70 67% 88 30.19 1022.2
17 12:52 Vrbl 6 10.00 Mostly Cloudy SCT060TCU SCT100 BKN150 BKN250 86 70 59% 91 30.19 1022.0
17 11:52 SE 6 10.00 Mostly Cloudy FEW080 FEW150 BKN250 82.9 70 65% 87 30.23 1023.3
17 10:52 SW 6 10.00 Partly Cloudy FEW080 FEW150 SCT250 80.1 68 67% 83 30.24 1023.9
17 08:52 S 6 10.00 Mostly Cloudy FEW070 FEW120 BKN250 73 66 79% 30.24 1023.8
17 07:52 SE 6 10.00 Mostly Cloudy FEW070 FEW120 BKN250 70 66 71.1 66 87% 30.25 1024.0
17 06:52 Calm 10.00 Mostly Cloudy FEW060 FEW120 BKN250 66 64.9 96% 30.24 1023.8
17 05:52 Calm 10.00 Partly Cloudy SCT055 69.1 64.9 87% 30.24 1023.7
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)