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 02:52 S 13 16.09 Fair CLR 6.1 0.6 68% 4 76.58 1020.8
20 01:52 S 9 16.09 Fair CLR 6.1 0.6 11.1 4.4 68% 4 76.63 1021.5
20 00:52 SE 6 16.09 A Few Clouds FEW140 FEW250 5 0 70% 76.66 1022.0
19 23:52 S 9 16.09 Mostly Cloudy BKN250 7.8 0 58% 6 76.63 1021.7
19 22:52 S 13 16.09 Mostly Cloudy BKN250 8.9 -0.6 52% 7 76.63 1021.6
19 21:52 S 11 16.09 Mostly Cloudy BKN200 10 -0.6 48% 9 76.61 1021.5
19 20:52 S 11 16.09 Partly Cloudy SCT200 10.6 -1.1 45% 76.58 1021.1
19 19:52 S 11 16.09 A Few Clouds FEW070 FEW200 11.1 -0.6 15 8.9 45% 76.56 1020.8
19 18:52 S 13 16.09 Partly Cloudy FEW070 SCT200 12.8 0 42% 76.56 1020.7
19 17:52 SE 9 16.09 Partly Cloudy FEW060 SCT200 13.9 -0.6 37% 76.56 1020.6
19 16:52 Vrbl 7 16.09 Partly Cloudy FEW060 SCT200 14.4 -0.6 36% 76.56 1020.8
19 15:52 Vrbl 7 16.09 Mostly Cloudy FEW060 BKN200 13.9 -1.1 36% 76.61 1021.5
19 14:52 Vrbl 6 16.09 Mostly Cloudy FEW055 BKN200 13.3 -1.1 37% 76.66 1022.2
19 13:52 N 9 16.09 Mostly Cloudy BKN060 BKN110 BKN250 11.7 -1.7 11.7 2.2 40% 76.73 1023.0
19 12:52 Vrbl 9 16.09 Mostly Cloudy SCT110 BKN250 10.6 -2.8 39% 76.81 1024.0
19 11:52 Vrbl 9 16.09 Mostly Cloudy SCT110 BKN250 8.3 -3.3 44% 7 76.84 1024.5
19 10:52 SW 9 16.09 Mostly Cloudy BKN060 BKN250 6.7 -3.3 49% 5 76.89 1025.0
19 09:52 S 7 16.09 Mostly Cloudy BKN060 3.9 -2.8 62% 2 76.91 1025.4
19 08:52 S 13 16.09 Mostly Cloudy BKN060 2.8 -2.8 67% -0 76.89 1025.3
19 07:52 S 13 16.09 Mostly Cloudy BKN060 2.2 -3.3 2.2 1.7 67% -1 76.86 1024.8
19 06:52 S 7 16.09 Mostly Cloudy BKN060 2.2 -3.3 67% 0 76.86 1024.7
19 05:52 S 17 16.09 Overcast OVC060 2.2 -3.9 64% -2 76.81 1024.4
19 04:52 S 7 16.09 Overcast BKN060 OVC095 1.7 -3.3 70% -0 76.84 1024.5
19 03:52 SE 7 16.09 Overcast OVC065 1.7 -3.9 67% -0 76.86 1024.8
19 02:52 S 7 16.09 Overcast OVC100 2.2 -4.4 62% 0 76.91 1025.5
19 01:52 S 9 16.09 Overcast FEW060 OVC100 2.2 -5 2.8 1.7 59% -0 76.96 1026.2
19 00:52 S 11 16.09 Overcast OVC070 2.2 -5.6 57% -1 76.99 1026.6
18 23:52 SE 9 16.09 Overcast OVC070 2.2 -6.7 52% -0 76.99 1026.7
18 22:52 SE 15 16.09 Overcast OVC075 2.8 -7.2 48% -1 77.01 1026.8
18 21:52 SE 13 16.09 Mostly Cloudy SCT085 BKN120 2.8 -8.3 44% -0 77.01 1026.9
18 20:52 SE 13 16.09 Partly Cloudy FEW080 SCT100 2.2 -8.9 44% -1 77.01 1026.9
18 19:52 SE 11 16.09 Partly Cloudy SCT100 SCT250 2.8 -10 5 2.8 39% 0 76.96 1026.3
18 18:52 SW 13 16.09 A Few Clouds FEW100 FEW250 3.9 -11.7 31% 1 76.99 1026.6
18 17:52 SW 17 16.09 A Few Clouds FEW070 FEW250 5 -11.1 30% 2 76.99 1026.7
18 16:52 S 11 16.09 A Few Clouds FEW070 FEW250 5 -11.1 30% 3 77.01 1027.1
18 15:52 Vrbl 9 16.09 A Few Clouds FEW080 FEW250 4.4 -11.7 30% 2 77.06 1027.6
18 14:52 S 17 G 33 16.09 A Few Clouds FEW075 FEW250 3.3 -12.2 31% -0 77.11 1028.3
18 13:52 SE 19 G 33 16.09 A Few Clouds FEW075 FEW250 2.8 -12.8 3.3 -3.3 31% -1 77.19 1029.4
18 12:52 E 15 16.09 A Few Clouds FEW140 FEW250 2.2 -12.8 32% -1 77.27 1030.3
18 11:52 Calm 16.09 A Few Clouds FEW250 0.6 -12.8 36% 77.29 1030.8
18 10:52 Vrbl 6 16.09 Mostly Cloudy BKN140 BKN250 -0.6 -12.2 42% 77.27 1030.5
18 09:52 N 9 16.09 Mostly Cloudy SCT120 BKN150 BKN220 -2.2 -12.2 47% -5 77.24 1030.1
18 08:52 N 13 16.09 Mostly Cloudy BKN170 BKN220 -2.8 -12.2 49% -7 77.19 1029.4
18 07:52 N 9 16.09 Mostly Cloudy BKN250 -3.3 -11.7 -3.3 -5 53% -7 77.22 1029.6
18 06:52 NW 17 16.09 Mostly Cloudy BKN250 -3.9 -11.7 55% -9 77.22 1029.6
18 05:52 W 7 16.09 Mostly Cloudy BKN250 -4.4 -11.1 60% -7 77.22 1029.6
18 04:52 W 11 16.09 Fair CLR -4.4 -11.7 57% -8 77.09 1028.2
18 03:52 W 6 16.09 Fair CLR -4.4 -11.7 57% 77.06 1027.8
18 02:52 NW 17 16.09 Fair CLR -3.3 -11.7 53% -8 77.01 1027.0
18 01:52 NW 13 16.09 Fair CLR -3.3 -12.8 0.6 -3.3 48% -8 77.01 1027.0
18 00:52 NW 13 16.09 Fair CLR -2.8 -12.8 46% -7 76.96 1026.5
17 23:52 NW 17 16.09 Fair CLR -2.2 -12.2 47% -7 76.89 1025.3
17 22:52 NW 26 G 37 16.09 Fair CLR -1.1 -12.8 41% -7 76.81 1024.2
17 21:52 NW 24 G 39 16.09 Fair CLR -1.1 -12.8 41% -7 76.78 1024.0
17 20:52 NW 28 G 46 16.09 A Few Clouds FEW100 -0.6 -12.2 42% -7 76.71 1022.9
17 19:52 NW 26 G 41 16.09 A Few Clouds FEW060 FEW090 0.6 -10.6 4.4 0.6 43% -5 76.58 1021.1
17 18:52 NW 28 G 39 16.09 Mostly Cloudy BKN065 BKN090 1.7 -10 42% -4 76.45 1019.5
17 17:52 NW 22 G 44 16.09 Mostly Cloudy SCT055 BKN070 2.8 -9.4 41% -2 76.33 1017.9
17 16:52 NW 31 G 39 16.09 Mostly Cloudy BKN060 BKN080 3.9 -10 36% -1 76.23 1016.3
17 15:52 NW 24 G 39 16.09 Mostly Cloudy BKN060 BKN080 2.8 -8.9 42% -2 76.23 1016.3
17 14:52 W 22 G 46 16.09 Mostly Cloudy BKN065 BKN080 2.8 -9.4 41% -2 76.17 1015.7
17 13:52 NW 26 G 39 16.09 Mostly Cloudy BKN055 BKN075 2.8 -8.9 3.9 -1.1 42% -2 76.2 1015.9
17 12:52 NW 30 G 41 16.09 Mostly Cloudy BKN065 3.3 -8.9 41% -2 76.2 1016.0
17 11:52 W 28 G 43 16.09 Mostly Cloudy BKN055 2.8 -8.9 42% -2 76.2 1016.2
17 10:52 W 28 G 57 16.09 Partly Cloudy SCT055 2.2 -10.6 39% -3 76.23 1016.3
17 09:52 W 26 G 43 16.09 Partly Cloudy SCT055 SCT250 1.7 -10 42% -3 76.17 1015.8
17 08:52 W 15 16.09 Partly Cloudy SCT055 SCT250 0 -9.4 50% -4 76.15 1015.4
17 07:52 NW 19 16.09 Partly Cloudy FEW050 SCT250 -1.1 -10 1.7 -1.1 51% -6 76.02 1013.5
17 06:52 W 19 G 39 16.09 A Few Clouds FEW050 -1.1 -10 51% -6 75.95 1012.4
17 05:52 W 26 G 50 16.09 Mostly Cloudy BKN050 -0.6 -10 49% -6 75.82 1011.0
17 04:52 W 24 G 52 16.09 Mostly Cloudy BKN055 0 -10 47% -5 75.72 1009.4
17 03:52 W 20 G 41 16.09 A Few Clouds FEW055 0.6 -8.3 52% -4 75.62 1008.3
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)