Weather observations for the past three days for
Washington/Dulles International Airport, DC
Metric (Imperial)
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
20 20:52 N 15 12.87 Thunderstorm Light Rain SCT041CB OVC075 21.1 19.4 90% 76.28 1016.5 0.71
20 19:52 N 17 16.09 Light Rain OVC100 22.8 19.4 35 21.7 81% 76.2 1015.4 0.03 0.2
20 18:52 W 7 16.09 Mostly Cloudy FEW070 SCT110 BKN180 22.2 19.4 84% 76.2 1015.7
20 17:52 NW 11 16.09 Mostly Cloudy SCT100 BKN180 22.8 18.9 79% 76.25 1016.3 0.18
20 16:52 NW 24 G 46 4.83 Thunderstorm Light Rain FEW040 BKN060CB OVC100 22.2 19.4 84% 76.28 1016.6
20 15:52 S 17 16.09 Mostly Cloudy SCT070 BKN180 32.8 17.2 39% 33 76.1 1014.0
20 14:52 Vrbl 11 16.09 Mostly Cloudy SCT060 BKN200 35 17.2 35% 36 76.12 1014.5
20 13:52 SW 17 16.09 Partly Cloudy SCT060 SCT200 33.9 17.8 33.9 23.3 38% 35 76.2 1015.6
20 12:52 SE 6 16.09 A Few Clouds FEW060 FEW200 32.2 17.8 42% 33 76.25 1016.0
20 11:52 W 11 16.09 A Few Clouds FEW060 FEW250 32.2 18.9 45% 34 76.3 1016.8
20 10:52 NW 13 16.09 A Few Clouds FEW050 FEW120 31.1 18.9 48% 32 76.33 1017.3
20 09:52 Vrbl 6 16.09 A Few Clouds FEW110 28.3 18.9 57% 30 76.35 1017.5
20 08:52 S 6 16.09 Fair CLR 26.1 18.9 65% 27 76.35 1017.6
20 07:52 S 11 16.09 A Few Clouds FEW100 23.3 19.4 23.3 17.8 79% 76.33 1017.3
20 06:52 Calm 16.09 A Few Clouds FEW130 19.4 17.8 91% 76.3 1017.0
20 05:52 Calm 16.09 A Few Clouds FEW120 18.3 17.2 93% 76.3 1017.0
20 04:52 Calm 14.48 Fair CLR 18.9 18.3 96% 76.28 1016.6
20 03:52 Calm 16.09 Fair CLR 20.6 18.9 90% 76.28 1016.5
20 02:52 S 9 16.09 Mostly Cloudy BKN170 21.1 18.9 87% 76.28 1016.4
20 01:52 Calm 16.09 Mostly Cloudy BKN170 19.4 17.2 26.7 18.9 87% 76.3 1016.9
20 00:52 Calm 16.09 A Few Clouds FEW100 20 17.8 87% 76.33 1017.3
19 23:52 W 6 16.09 Mostly Cloudy BKN100 21.1 19.4 90% 76.35 1017.5
19 22:52 S 6 16.09 Partly Cloudy FEW100 SCT220 20.6 18.9 90% 76.33 1017.3
19 21:52 Calm 16.09 Mostly Cloudy BKN100 22.8 18.9 79% 76.33 1017.2
19 20:52 Calm 16.09 Mostly Cloudy FEW040 SCT100 BKN250 23.3 18.9 76% 76.3 1017.0
19 19:52 Calm 16.09 Mostly Cloudy FEW035 BKN100 BKN250 26.1 18.3 35.6 24.4 62% 27 76.33 1017.4
19 18:52 S 6 16.09 Mostly Cloudy FEW028 BKN075 BKN250 26.1 18.9 65% 27 76.33 1017.3
19 17:52 SW 30 G 61 12.87 Thunderstorm Light Rain SCT037CB BKN080 BKN250 26.7 17.8 58% 28 76.4 1018.3
19 16:52 W 9 16.09 Mostly Cloudy FEW037CB BKN080 BKN250 33.3 14.4 32% 33 76.35 1017.5
19 15:52 SW 13 16.09 Partly Cloudy SCT080 SCT250 34.4 16.7 35% 35 76.35 1017.6
19 14:52 W 13 16.09 Partly Cloudy SCT070 SCT250 35 16.7 34% 35 76.4 1018.1
19 13:52 W 15 16.09 Partly Cloudy SCT070 34.4 16.7 34.4 23.9 35% 35 76.45 1018.9
19 12:52 W 19 G 37 16.09 Partly Cloudy SCT250 33.9 16.7 36% 34 76.48 1019.2
19 11:52 W 13 G 30 16.09 Partly Cloudy SCT250 33.3 17.2 38% 34 76.5 1019.6
19 10:52 NW 20 G 35 16.09 Partly Cloudy SCT250 32.2 16.7 39% 32 76.53 1020.0
19 09:52 S 6 16.09 Mostly Cloudy BKN250 28.9 17.8 51% 30 76.53 1020.1
19 08:52 S 9 16.09 Mostly Cloudy BKN250 26.7 17.2 56% 27 76.56 1020.2
19 07:52 S 6 16.09 Mostly Cloudy BKN250 23.9 16.7 25 22.2 64% 25 76.56 1020.2
19 06:52 S 11 16.09 Mostly Cloudy BKN250 22.8 16.1 66% 76.5 1019.7
19 05:52 S 13 16.09 Mostly Cloudy BKN250 22.2 16.1 68% 76.48 1019.3
19 04:52 S 11 16.09 A Few Clouds FEW100 22.2 16.1 68% 76.48 1019.1
19 03:52 SW 6 16.09 Fair CLR 23.3 16.1 64% 76.48 1019.2
19 02:52 S 13 16.09 Fair CLR 23.9 16.7 64% 25 76.48 1019.2
19 01:52 S 15 16.09 Fair CLR 25 16.7 31.7 25 60% 26 76.5 1019.5
19 00:52 SW 9 16.09 Fair CLR 25 16.7 60% 26 76.5 1019.6
18 23:52 S 11 16.09 Fair CLR 26.1 16.7 56% 27 76.5 1019.6
18 22:52 S 11 16.09 Fair CLR 27.8 16.7 51% 28 76.5 1019.6
18 21:52 S 9 16.09 Fair CLR 28.3 17.2 51% 29 76.48 1019.3
18 20:52 SE 9 16.09 A Few Clouds FEW250 28.9 17.8 51% 30 76.43 1018.6
18 19:52 S 11 16.09 A Few Clouds FEW120 FEW250 31.7 17.2 35 31.7 42% 32 76.43 1018.4
18 18:52 S 11 16.09 A Few Clouds FEW085 FEW250 32.8 17.2 39% 33 76.43 1018.7
18 17:52 SE 19 G 30 16.09 A Few Clouds FEW070 FEW250 33.3 17.2 38% 34 76.43 1018.6
18 16:52 SE 15 16.09 A Few Clouds FEW070 FEW250 33.9 17.8 38% 35 76.45 1018.9
18 15:52 SW 13 G 28 16.09 A Few Clouds FEW075 FEW250 34.4 16.7 35% 35 76.5 1019.6
18 14:52 E 13 16.09 A Few Clouds FEW060 33.9 17.8 38% 35 76.53 1020.0
18 13:52 SE 6 16.09 A Few Clouds FEW050 33.9 16.7 33.9 22.2 36% 34 76.58 1020.5
18 12:52 Vrbl 6 16.09 Fair CLR 32.8 16.7 38% 33 76.61 1020.8
18 11:52 Calm 16.09 Fair CLR 31.7 17.2 42% 32 76.66 1021.5
18 10:52 S 9 16.09 Partly Cloudy SCT250 30 18.9 51% 31 76.66 1021.7
18 09:52 Calm 16.09 Mostly Cloudy BKN250 27.8 18.9 58% 29 76.68 1021.8
18 08:52 S 7 16.09 Partly Cloudy SCT250 23.9 18.3 71% 25 76.68 1022.0
18 06:52 Calm 16.09 Partly Cloudy FEW120 SCT250 17.8 16.1 90% 76.63 1021.2
18 05:52 Calm 16.09 A Few Clouds FEW120 FEW250 16.7 15.6 93% 76.58 1020.5
18 04:52 Calm 16.09 Fair CLR 18.3 16.1 87% 76.56 1020.2
18 03:52 SE 6 16.09 Fair CLR 17.2 15.6 90% 76.53 1019.9
18 02:52 Calm 16.09 Fair CLR 18.9 16.1 84% 76.53 1020.0
17 23:52 S 13 16.09 Partly Cloudy SCT180 23.9 16.1 62% 25 76.53 1020.0
17 22:52 S 9 16.09 Mostly Cloudy BKN180 24.4 16.1 60% 26 76.53 1020.0
17 21:52 SE 9 16.09 Partly Cloudy SCT180 25 16.7 60% 26 76.48 1019.4
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)