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.
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
17 04:52 Calm 10.00 Partly Cloudy SCT055 69.1 64.9 87% 30.24 1023.9
17 03:52 SE 5 10.00 Mostly Cloudy SCT055 BKN110 70 64.9 84% 30.24 1023.9
17 02:52 SE 6 10.00 Mostly Cloudy BKN055 70 66 87% 30.26 1024.3
17 01:52 SE 3 10.00 A Few Clouds FEW120 70 64.9 78.1 70 84% 30.26 1024.5
17 00:52 S 3 10.00 A Few Clouds FEW060 FEW120 71.1 64.9 81% 30.28 1025.0
16 23:52 SE 5 10.00 Partly Cloudy SCT120 72 64.9 79% 30.29 1025.3
16 22:52 S 3 10.00 Fair CLR 73.9 64.9 74% 30.3 1025.6
16 21:52 S 6 10.00 Fair CLR 75 66 74% 76 30.3 1025.6
16 20:52 S 6 10.00 A Few Clouds FEW100 FEW250 77 64.9 66% 79 30.3 1025.7
16 19:52 S 6 10.00 A Few Clouds FEW100 FEW250 78.1 66 84.9 78.1 67% 80 30.28 1025.0
16 18:52 S 7 10.00 Fair CLR 80.1 66 62% 82 30.28 1025.0
16 16:52 S 6 10.00 A Few Clouds FEW250 84 66 55% 86 30.29 1025.4
16 15:52 SW 10 10.00 A Few Clouds FEW250 84 64.9 53% 86 30.3 1025.7
16 14:52 S 6 10.00 A Few Clouds FEW250 84 64.9 53% 86 30.32 1026.5
16 13:52 Vrbl 3 10.00 A Few Clouds FEW250 82 64 82 64 55% 84 30.34 1027.2
16 12:52 S 8 10.00 A Few Clouds FEW250 80.1 63 56% 81 30.36 1027.7
16 11:52 S 7 10.00 A Few Clouds FEW250 77 62.1 60% 79 30.37 1028.1
16 10:52 SW 8 10.00 A Few Clouds FEW110 FEW250 75 61 62% 77 30.38 1028.7
16 09:52 SW 8 10.00 A Few Clouds FEW120 FEW250 71.1 61 71% 30.38 1028.6
16 08:52 S 6 10.00 A Few Clouds FEW120 FEW250 66.9 59 76% 30.37 1028.4
16 07:52 SW 5 10.00 A Few Clouds FEW250 64 59 64 57.9 84% 30.37 1028.2
16 06:52 S 6 10.00 Fair CLR 62.1 57 84% 30.35 1027.5
16 05:52 SE 6 10.00 Fair CLR 61 57 87% 30.34 1027.2
16 04:52 SE 3 10.00 Fair CLR 59 57 93% 30.33 1026.8
16 03:52 Calm 10.00 Fair CLR 59 57 93% 30.32 1026.6
16 02:52 Calm 10.00 Fair CLR 60.1 57 90% 30.32 1026.6
16 01:52 S 3 10.00 Fair CLR 61 57 69.1 60.1 87% 30.32 1026.4
16 00:52 S 5 10.00 Fair CLR 62.1 55.9 80% 30.33 1026.8
15 23:52 Calm 10.00 Fair CLR 64 55.9 75% 30.34 1027.2
15 22:52 S 5 10.00 Fair CLR 64.9 55.9 73% 30.34 1027.1
15 20:52 S 6 10.00 Fair CLR 68 54 61% 30.34 1027.1
15 19:52 SE 5 10.00 A Few Clouds FEW250 69.1 53.1 77 69.1 57% 30.32 1026.5
15 18:52 S 5 10.00 Fair CLR 72 53.1 52% 30.32 1026.4
15 17:52 Vrbl 3 10.00 Fair CLR 75 53.1 46% 78 30.32 1026.6
15 16:52 SE 8 10.00 A Few Clouds FEW250 75.9 53.1 45% 78 30.32 1026.5
15 15:52 S 6 10.00 A Few Clouds FEW250 77 53.1 43% 78 30.33 1026.8
15 14:52 Vrbl 6 10.00 A Few Clouds FEW250 75.9 52 43% 78 30.33 1027.0
15 13:52 Calm 10.00 Partly Cloudy SCT250 73.9 50 75 57.9 43% 30.36 1027.9
15 12:52 Calm 10.00 A Few Clouds FEW120 FEW250 73.9 50 43% 30.38 1028.4
15 11:52 Calm 10.00 A Few Clouds FEW250 71.1 48 44% 30.38 1028.7
15 10:52 Vrbl 5 10.00 A Few Clouds FEW250 70 48.9 47% 30.39 1028.9
15 09:52 Calm 10.00 A Few Clouds FEW250 66 52 61% 30.38 1028.7
15 08:52 Calm 10.00 A Few Clouds FEW050 FEW250 62.1 50 65% 30.38 1028.7
15 07:52 NE 5 10.00 A Few Clouds FEW050 FEW250 57.9 51.1 57.9 52 78% 30.37 1028.1
15 06:52 Calm 10.00 A Few Clouds FEW050 FEW250 53.1 50 89% 30.35 1027.5
15 05:52 NW 5 10.00 Fair CLR 55.9 51.1 84% 30.33 1026.9
15 04:52 NW 3 10.00 Fair CLR 55 51.1 87% 30.31 1026.1
15 03:52 Calm 10.00 Fair CLR 55.9 51.1 84% 30.29 1025.7
15 02:52 Calm 10.00 Fair CLR 55 51.1 87% 30.29 1025.5
15 01:52 Calm 10.00 Fair CLR 55.9 51.1 71.1 55.9 84% 30.28 1025.3
15 00:52 Calm 10.00 Fair CLR 61 51.1 70% 30.27 1025.0
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)