Weather observations for the past three days for
Washington/Dulles International Airport, DC
Metric (Imperial)
Date Time (est) 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.
22 17:52 W 19 16.09 Mostly Cloudy SCT150 BKN250 7.8 -10 27% 5 76.5 1020.0
22 16:52 W 15 16.09 Mostly Cloudy SCT150 BKN250 9.4 -8.9 27% 7 76.43 1019.1
22 15:52 W 24 G 37 16.09 Mostly Cloudy SCT150 BKN250 11.1 -9.4 23% 76.35 1018.0
22 14:52 W 26 16.09 Mostly Cloudy SCT150 BKN250 11.1 -9.4 23% 76.33 1017.5
22 13:52 W 26 G 44 16.09 Mostly Cloudy BKN250 13.3 -9.4 20% 76.33 1017.6
22 12:52 W 19 G 37 16.09 Mostly Cloudy FEW090 BKN250 12.8 -9.4 12.8 0.6 21% 76.33 1017.7
22 11:52 NW 9 16.09 A Few Clouds FEW250 11.1 -5.6 31% 76.4 1018.7
22 10:52 S 9 16.09 Fair CLR 10 -4.4 36% 9 76.45 1019.5
22 09:52 S 11 16.09 Partly Cloudy SCT060 7.8 -5 40% 6 76.45 1019.4
22 08:52 S 7 16.09 Partly Cloudy SCT060 5.6 -6.1 43% 4 76.45 1019.4
22 07:52 Calm 16.09 Mostly Cloudy BKN055 BKN070 BKN250 1.1 -6.7 56% 76.43 1019.3
22 06:52 Calm 16.09 Partly Cloudy SCT060 2.2 -7.8 3.9 0.6 48% 76.43 1019.1
22 05:52 S 15 16.09 Fair CLR 1.1 -8.3 50% -3 76.3 1017.4
22 04:52 S 19 16.09 Partly Cloudy SCT060 2.2 -8.3 46% -2 76.28 1017.1
22 03:52 S 15 16.09 Fair CLR 2.2 -8.3 46% -1 76.3 1017.5
22 02:52 S 17 16.09 A Few Clouds FEW120 2.8 -8.3 44% -1 76.33 1017.7
22 01:52 S 20 16.09 Fair CLR 3.3 -8.9 41% -1 76.35 1018.0
22 00:52 S 17 16.09 A Few Clouds FEW095 3.9 -8.9 4.4 3.3 39% 0 76.38 1018.4
21 23:52 S 22 G 35 16.09 Mostly Cloudy SCT080 BKN095 3.9 -9.4 38% -0 76.45 1019.5
21 22:52 S 22 16.09 Mostly Cloudy BKN100 3.3 -10.6 36% -1 76.48 1019.9
21 21:52 S 20 16.09 Overcast SCT080 OVC160 3.3 -11.1 34% -1 76.5 1020.4
21 20:52 S 17 G 31 16.09 Mostly Cloudy BKN080 3.9 -12.2 30% 0 76.61 1021.5
21 19:52 S 19 G 35 16.09 Mostly Cloudy BKN080 3.9 -12.8 29% 0 76.66 1022.4
21 18:52 S 13 16.09 Partly Cloudy FEW090 SCT200 3.9 -13.3 5.6 3.3 28% 1 76.71 1023.0
21 17:52 S 11 16.09 Partly Cloudy FEW090 SCT200 3.9 -13.9 26% 1 76.73 1023.5
21 16:52 S 17 16.09 Partly Cloudy FEW090 SCT200 5 -15 22% 2 76.78 1023.9
21 15:52 S 33 G 48 16.09 Partly Cloudy and Breezy SCT090 SCT200 5.6 -15.6 20% 1 76.78 1024.1
21 14:52 S 28 G 43 16.09 Partly Cloudy FEW080 SCT200 5.6 -16.1 19% 1 76.86 1025.1
21 13:52 S 26 G 50 16.09 A Few Clouds FEW250 4.4 -16.7 20% 0 76.91 1025.8
21 12:52 S 26 G 56 16.09 A Few Clouds FEW250 3.3 -17.2 3.3 -13.3 21% -1 76.99 1026.7
21 11:52 S 19 G 37 16.09 Fair CLR 1.1 -17.2 24% -3 77.29 1030.9
21 10:52 S 15 16.09 Fair CLR -1.1 -15 34% -5 77.39 1032.2
21 09:52 S 11 16.09 Fair CLR -3.9 -13.9 46% -8 77.52 1033.8
21 08:52 Calm 16.09 Fair CLR -6.7 -12.8 62% 77.52 1033.8
21 07:52 Calm 16.09 Fair CLR -11.7 -15.6 73% 77.5 1033.8
21 06:52 Calm 16.09 Fair CLR -12.8 -16.1 -11.1 -14.4 77% 77.5 1033.7
21 05:52 NW 7 16.09 Fair CLR -12.8 -16.1 77% -17 77.55 1034.3
21 04:52 SE 6 16.09 Fair CLR -12.8 -16.1 77% 77.5 1033.6
21 03:52 Calm 16.09 Fair CLR -12.8 -16.1 77% 77.52 1034.0
21 02:52 Calm 16.09 Fair CLR -12.2 -17.2 67% 77.55 1034.1
21 01:52 S 6 16.09 Fair CLR -11.7 -16.7 67% 77.52 1033.8
21 00:52 Calm 16.09 Fair CLR -11.7 -17.2 -4.4 -12.2 64% 77.5 1033.7
20 23:52 Calm 16.09 Fair CLR -10.6 -17.8 56% 77.52 1033.7
20 22:52 Calm 16.09 Fair CLR -9.4 -17.8 51% 77.52 1033.8
20 21:52 N 6 16.09 Fair CLR -6.7 -18.9 38% 77.47 1033.1
20 20:52 NW 6 16.09 Fair CLR -6.1 -19.4 34% 77.44 1032.7
20 19:52 NW 9 16.09 Fair CLR -5.6 -20 31% -9 77.44 1032.7
20 18:52 N 9 16.09 Fair CLR -4.4 -20 -0.6 -4.4 29% -8 77.37 1031.8
20 17:52 NW 17 16.09 A Few Clouds FEW200 -3.3 -20.6 25% -8 77.29 1030.7
20 16:52 W 15 16.09 Fair CLR -1.7 -21.1 21% -6 77.22 1030.0
20 15:52 W 13 16.09 Fair CLR -0.6 -21.7 19% -4 77.19 1029.5
20 14:52 W 17 16.09 Fair CLR -0.6 -21.1 20% -5 77.17 1029.0
20 13:52 W 19 G 30 16.09 Fair CLR -1.1 -21.1 20% -6 77.14 1028.6
20 12:52 W 17 G 33 16.09 Fair CLR -1.7 -20.6 -1.7 -8.9 22% -6 77.14 1028.8
20 11:52 W 15 G 30 16.09 Fair CLR -2.8 -20.6 24% -7 77.22 1029.7
20 10:52 W 20 G 31 16.09 Fair CLR -3.9 -20 28% -10 77.27 1030.5
20 09:52 NW 13 16.09 Fair CLR -5.6 -19.4 33% -10 77.27 1030.3
20 08:52 N 11 16.09 Fair CLR -6.7 -18.9 38% -11 77.19 1029.5
20 07:52 NW 11 16.09 Fair CLR -8.3 -19.4 41% -13 77.14 1028.9
20 06:52 NW 7 16.09 Fair CLR -8.3 -19.4 -3.9 -8.9 41% -12 77.11 1028.4
20 05:52 NW 11 16.09 Fair CLR -8.3 -18.9 43% -13 77.01 1027.1
20 04:52 NW 11 16.09 Fair CLR -7.8 -18.9 41% -12 76.94 1026.0
20 03:52 NW 17 16.09 Fair CLR -7.2 -18.3 41% -13 76.91 1025.6
20 02:52 NW 19 16.09 Fair CLR -6.1 -17.8 39% -12 76.89 1025.3
20 01:52 NW 20 G 35 16.09 A Few Clouds FEW200 -5 -16.7 40% -11 76.81 1024.3
20 00:52 NW 17 16.09 A Few Clouds FEW200 -3.9 -15 1.1 -3.9 42% -9 76.73 1023.4
19 23:52 NW 26 G 41 16.09 A Few Clouds FEW200 -2.2 -13.9 41% -8 76.68 1022.6
19 22:52 NW 19 G 35 16.09 Fair CLR -1.1 -12.8 41% -6 76.58 1021.2
19 21:52 NW 7 16.09 Partly Cloudy SCT200 -0.6 -13.3 38% -3 76.5 1020.1
19 20:52 NW 17 16.09 A Few Clouds FEW060 FEW180 0 -12.8 38% -4 76.43 1019.1
19 19:52 Calm 16.09 Fair CLR -0.6 -13.3 38% 76.4 1018.9
19 18:52 N 6 16.09 Fair CLR 1.1 -12.8 5.6 1.1 35% 76.33 1018.0
Date Time (est) 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)