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.
08 08:52 N 9 16.09 Fair CLR 2.8 -8.9 42% 1 77.75 1036.7
08 07:52 N 11 16.09 Fair CLR 1.7 -8.9 3.9 0 46% -1 77.72 1036.3
08 06:52 NE 9 16.09 A Few Clouds FEW250 0 -8.9 52% -3 77.65 1035.3
08 05:52 NE 11 16.09 Fair CLR 0 -8.9 52% -3 77.57 1034.3
08 04:52 NE 7 16.09 Fair CLR 1.1 -8.9 48% -1 77.5 1033.4
08 03:52 N 15 16.09 Fair CLR 2.2 -9.4 42% -1 77.44 1032.5
08 02:52 NE 13 16.09 Fair CLR 3.3 -9.4 39% 0 77.42 1032.1
08 01:52 N 15 16.09 Fair CLR 3.9 -9.4 9.4 3.9 38% 1 77.39 1031.9
08 00:52 N 13 16.09 Fair CLR 3.9 -8.9 39% 1 77.42 1032.1
07 23:52 N 17 16.09 Fair CLR 6.1 -9.4 32% 3 77.37 1031.6
07 22:52 N 17 G 30 16.09 Fair CLR 6.7 -10.6 28% 4 77.34 1031.1
07 21:52 N 19 16.09 Fair CLR 7.8 -10.6 26% 5 77.29 1030.6
07 20:52 N 20 16.09 Fair CLR 8.9 -11.1 23% 6 77.22 1029.6
07 19:52 N 20 16.09 A Few Clouds FEW250 9.4 -12.8 13.3 9.4 20% 7 77.17 1028.7
07 18:52 N 22 16.09 A Few Clouds FEW250 10.6 -11.1 21% 77.11 1028.2
07 17:52 N 19 G 31 16.09 A Few Clouds FEW250 12.2 -10 20% 77.06 1027.4
07 16:52 N 22 G 33 16.09 A Few Clouds FEW250 12.8 -10 20% 76.99 1026.5
07 15:52 NW 22 G 43 16.09 A Few Clouds FEW250 13.3 -10 19% 76.99 1026.3
07 14:52 NW 19 G 39 16.09 A Few Clouds FEW080 FEW250 13.3 -9.4 20% 76.99 1026.4
07 13:52 N 28 G 43 16.09 A Few Clouds FEW060 FEW250 13.3 -7.8 13.3 8.9 22% 76.96 1026.1
07 12:52 W 24 G 46 16.09 A Few Clouds FEW060 FEW250 12.2 -5 30% 76.96 1025.9
07 11:52 NW 31 G 52 16.09 Partly Cloudy FEW060 SCT250 11.7 -4.4 32% 76.94 1025.8
07 10:52 NW 37 G 56 16.09 Partly Cloudy and Breezy FEW060 SCT250 10.6 -3.9 36% 76.94 1025.6
07 09:52 NW 24 G 46 16.09 A Few Clouds FEW045 FEW250 10.6 -3.3 38% 76.89 1025.1
07 08:52 NW 24 G 39 16.09 A Few Clouds FEW040 FEW250 9.4 -5 36% 7 76.84 1024.4
07 07:52 NW 26 G 37 16.09 Partly Cloudy SCT250 8.3 -5 9.4 4.4 39% 5 76.78 1023.8
07 06:52 NW 19 G 33 16.09 Partly Cloudy SCT250 7.8 -3.9 44% 5 76.71 1022.5
07 05:52 NW 9 16.09 Fair CLR 6.1 0.6 68% 4 76.61 1021.3
07 04:52 Calm 16.09 Fair CLR 6.1 1.1 71% 76.58 1020.8
07 03:52 Calm 16.09 Fair CLR 7.2 1.7 68% 76.5 1020.0
07 02:52 N 15 16.09 A Few Clouds FEW100 7.2 2.8 74% 5 76.43 1019.0
07 01:52 Calm 16.09 Mostly Cloudy BKN100 6.7 3.3 13.9 6.1 79% 76.43 1018.8
07 00:52 Calm 16.09 Mostly Cloudy BKN100 7.8 3.3 73% 76.43 1018.8
06 23:52 SE 7 16.09 Mostly Cloudy BKN100 7.8 2.8 71% 7 76.43 1018.9
06 22:52 Calm 16.09 Mostly Cloudy BKN100 8.9 2.8 66% 76.43 1018.9
06 21:52 N 7 16.09 Overcast OVC110 11.1 1.1 50% 76.43 1019.0
06 20:52 Calm 16.09 Mostly Cloudy BKN100 BKN250 10 1.7 57% 76.4 1018.7
06 19:52 N 7 16.09 Mostly Cloudy BKN100 BKN250 13.9 -0.6 17.2 13.3 37% 76.35 1017.9
06 18:52 NW 17 16.09 Mostly Cloudy SCT095 BKN250 14.4 -0.6 36% 76.3 1017.3
06 17:52 NW 17 G 35 16.09 Mostly Cloudy BKN100 BKN250 15.6 -0.6 33% 76.3 1017.1
06 16:52 W 30 G 39 16.09 Mostly Cloudy BKN100 BKN250 16.7 -1.1 30% 76.28 1016.8
06 15:52 W 7 16.09 Mostly Cloudy BKN080 BKN250 15 -1.7 32% 76.3 1017.1
06 14:52 SW 17 G 31 16.09 Partly Cloudy SCT075 SCT250 16.1 -1.1 31% 76.35 1017.8
06 13:52 NW 17 16.09 A Few Clouds FEW080 14.4 -1.7 14.4 7.8 33% 76.45 1019.2
06 12:52 W 19 G 31 16.09 A Few Clouds FEW050 13.3 -1.7 36% 76.53 1020.2
06 11:52 Vrbl 11 16.09 A Few Clouds FEW040 FEW250 12.8 -1.7 37% 76.58 1021.0
06 10:52 W 19 G 37 16.09 A Few Clouds FEW050 FEW250 11.1 -1.7 41% 76.63 1021.5
06 09:52 W 26 16.09 A Few Clouds FEW050 FEW250 10 -1.1 46% 7 76.56 1020.7
06 08:52 NW 30 G 37 16.09 A Few Clouds FEW250 9.4 -1.7 46% 6 76.56 1020.6
06 07:52 NW 15 16.09 A Few Clouds FEW250 7.8 -2.2 9.4 6.7 50% 6 76.53 1020.1
06 06:52 NW 19 16.09 A Few Clouds FEW050 7.2 -2.8 49% 4 76.48 1019.7
06 05:52 NW 15 16.09 A Few Clouds FEW050 6.7 -1.7 55% 4 76.4 1018.6
06 04:52 NW 22 G 43 16.09 A Few Clouds FEW050 7.8 -2.2 50% 5 76.38 1018.2
06 03:52 NW 30 G 48 16.09 Fair CLR 7.8 -2.2 50% 4 76.35 1017.8
06 02:52 NW 52 G 72 16.09 Fair and Windy CLR 8.9 -2.8 44% 4 76.33 1017.6
06 01:52 NW 30 G 52 16.09 Fair CLR 9.4 -1.7 13.3 9.4 46% 6 76.35 1017.9
06 00:52 NW 37 G 57 16.09 Fair and Breezy CLR 10 -0.6 48% 6 76.33 1017.3
05 23:52 NW 17 16.09 Partly Cloudy SCT055 10.6 -0.6 46% 76.33 1017.5
05 22:52 NW 20 G 39 16.09 Partly Cloudy SCT060 11.1 0.6 49% 76.3 1017.1
05 21:52 NW 26 G 54 16.09 Partly Cloudy SCT060 SCT250 12.2 1.7 49% 76.28 1016.7
05 20:52 NW 22 G 44 16.09 Partly Cloudy FEW080 SCT250 12.8 1.7 47% 76.17 1015.5
05 19:52 NW 22 G 46 16.09 Mostly Cloudy FEW050 BKN250 13.3 2.2 18.3 13.3 47% 76.07 1014.1 0.03
05 18:52 NW 26 G 46 16.09 Mostly Cloudy FEW050 BKN250 13.9 3.3 49% 76 1013.0
05 17:52 NW 31 G 52 16.09 Mostly Cloudy FEW050 BKN250 16.1 6.1 52% 75.9 1011.6
05 16:52 NW 26 G 39 16.09 Mostly Cloudy FEW050 SCT120 BKN250 17.8 8.9 56% 75.82 1010.5 0.03
05 15:52 NW 22 G 35 16.09 Mostly Cloudy FEW030 SCT110 BKN220 16.7 10 65% 75.79 1010.4
05 14:52 NW 17 16.09 Mostly Cloudy FEW012 SCT028 BKN044 BKN130 15 11.1 78% 75.84 1011.0 0.03
05 13:52 NW 20 12.87 Light Rain FEW009 BKN020 BKN036 OVC130 14.4 12.2 22.2 14.4 87% 75.84 1010.9 0.28 1.52
05 12:52 Calm 6.44 Rain Fog/Mist FEW010 SCT031 SCT049 OVC130 16.1 15 93% 75.87 1011.4 0.15
05 11:52 S 7 9.66 Light Rain Fog/Mist FEW017 BKN034 OVC070 15.6 14.4 93% 75.87 1011.3 0.89
05 10:52 W 26 G 54 4.83 Heavy Rain Fog/Mist FEW017 BKN025 OVC045 17.2 15 87% 75.92 1011.8 0.2 0.2
05 09:52 SW 19 G 35 16.09 Light Rain FEW025 SCT085 SCT120 BKN150 OVC220 21.7 16.1 71% 75.82 1010.5
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)