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.
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
17 20:52 S 7 16.09 Partly Cloudy FEW090 SCT180 SCT250 23.3 16.7 67% 76.45 1019.0
17 19:52 S 7 16.09 Partly Cloudy FEW100 SCT180 SCT250 27.2 16.1 31.1 27.2 51% 28 76.43 1018.7
17 18:52 SW 6 16.09 Partly Cloudy FEW060 FEW090 SCT110 SCT250 28.9 15.6 44% 29 76.4 1018.5
17 17:52 SW 6 16.09 Partly Cloudy FEW060 FEW110 SCT250 30 15.6 42% 30 76.4 1018.4
17 16:52 SW 13 16.09 Partly Cloudy FEW060 FEW110 SCT250 30.6 15.6 40% 30 76.4 1018.2
17 15:52 W 9 16.09 Partly Cloudy FEW050 FEW110 SCT180 SCT250 30.6 15.6 40% 30 76.43 1018.7
17 14:52 NW 11 G 30 16.09 Partly Cloudy FEW050 FEW110 SCT170 SCT250 29.4 15.6 43% 29 76.48 1019.3
17 13:52 NW 9 16.09 Mostly Cloudy FEW050 SCT075 SCT090 BKN150 BKN250 28.3 15.6 28.3 18.3 46% 28 76.53 1019.9 0.03
17 11:52 NW 7 16.09 Mostly Cloudy BKN050 BKN065 BKN100 BKN150 24.4 18.3 69% 25 76.58 1020.8
17 10:52 S 7 16.09 Mostly Cloudy SCT042 BKN110 BKN150 BKN250 21.7 17.8 79% 76.56 1020.5 0.03 0.03
17 09:52 SW 9 16.09 Mostly Cloudy BKN110 BKN250 21.1 16.1 73% 76.56 1020.3
17 08:52 SW 7 16.09 Mostly Cloudy BKN130 BKN250 21.1 16.1 73% 76.53 1020.1
17 07:52 S 7 16.09 Mostly Cloudy SCT150 BKN250 18.3 15.6 18.3 13.9 84% 76.48 1019.5
17 06:52 Calm 16.09 Mostly Cloudy FEW120 BKN250 16.1 14.4 90% 76.38 1018.1
17 05:52 Calm 16.09 Mostly Cloudy FEW120 BKN250 15 13.9 93% 76.3 1017.1
17 04:52 E 6 16.09 A Few Clouds FEW250 15.6 13.9 90% 76.33 1017.1
17 03:52 E 6 16.09 Fair CLR 15 13.9 93% 76.25 1016.4
17 02:52 Calm 16.09 A Few Clouds FEW060 FEW250 16.1 15 93% 76.25 1016.4
16 23:52 NW 7 16.09 Mostly Cloudy FEW060 BKN250 18.9 15 78% 76.23 1015.9
16 22:52 Calm 16.09 Mostly Cloudy FEW120 FEW150 BKN250 17.8 15 84% 76.2 1015.6
16 21:52 Calm 16.09 Mostly Cloudy FEW120 SCT150 BKN250 21.7 15.6 68% 76.17 1015.5
16 20:52 W 6 16.09 Overcast FEW060 BKN110 BKN180 OVC250 23.3 15 60% 76.15 1015.1
16 19:52 S 6 16.09 Overcast OVC095 23.3 15 29.4 23.3 60% 76.12 1014.8
16 18:52 SW 9 16.09 Mostly Cloudy FEW070 BKN110 BKN180 BKN250 25 14.4 52% 26 76.15 1015.1
16 17:52 W 26 G 43 16.09 Overcast FEW060 BKN075 BKN130 OVC250 26.1 12.8 44% 26 76.23 1015.9
16 16:52 SW 22 16.09 Mostly Cloudy FEW060 SCT080 BKN130 BKN250 28.9 11.7 34% 28 76.17 1015.3
16 15:52 S 20 G 39 16.09 Partly Cloudy FEW090 FEW180 SCT250 28.3 10.6 33% 27 76.2 1015.8
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)