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.
04 10:52 S 15 16.09 A Few Clouds FEW120 18.9 2.2 33% 76.07 1013.9
04 09:52 S 11 16.09 Fair CLR 16.7 2.8 40% 76.07 1014.2
04 08:52 S 15 16.09 A Few Clouds FEW100 13.3 3.3 51% 76.1 1014.7
04 07:52 S 11 16.09 A Few Clouds FEW100 10.6 2.8 10.6 6.7 59% 76.15 1015.0
04 06:52 S 11 16.09 Mostly Cloudy BKN095 9.4 2.2 61% 8 76.15 1015.0
04 05:52 S 9 16.09 Mostly Cloudy BKN100 BKN110 9.4 1.1 56% 8 76.15 1014.9
04 04:52 S 7 16.09 Overcast OVC090 10 1.1 54% 9 76.15 1015.2
04 03:52 Calm 16.09 Overcast OVC100 10 0.6 52% 76.15 1015.2
04 02:52 Calm 16.09 Overcast OVC100 7.2 3.3 77% 76.17 1015.4
04 01:52 Calm 16.09 Mostly Cloudy BKN120 6.7 2.2 15 5 73% 76.2 1015.8
04 00:52 SE 6 16.09 Mostly Cloudy BKN150 5 0.6 73% 76.2 1015.9
03 23:52 S 6 16.09 A Few Clouds FEW100 FEW250 7.2 0 61% 76.2 1015.7
03 22:52 S 6 16.09 Fair CLR 7.8 0 58% 76.17 1015.6
03 21:52 SE 6 16.09 A Few Clouds FEW250 7.2 0 61% 76.15 1015.0
03 20:52 SW 6 16.09 A Few Clouds FEW250 10.6 -1.1 45% 76.12 1014.8
03 19:52 W 7 16.09 A Few Clouds FEW250 15 -3.9 17.2 13.9 27% 76.07 1014.3
03 18:52 W 17 16.09 A Few Clouds FEW085 FEW250 16.7 -4.4 23% 76.05 1014.0
03 17:52 W 13 16.09 A Few Clouds FEW085 17.2 -3.9 24% 76.07 1014.2
03 16:52 W 17 G 35 16.09 A Few Clouds FEW085 16.7 -3.9 24% 76.07 1014.3
03 15:52 NW 24 G 39 16.09 A Few Clouds FEW080 16.7 -3.3 25% 76.15 1015.1
03 14:52 W 19 G 35 16.09 A Few Clouds FEW075 15.6 -3.3 27% 76.2 1015.9
03 13:52 NW 15 G 37 16.09 Partly Cloudy SCT070 14.4 -2.8 15 7.2 31% 76.23 1016.4
03 12:52 NW 20 G 35 16.09 Partly Cloudy SCT070 13.9 -3.3 30% 76.28 1016.7
03 11:52 W 15 G 37 16.09 Partly Cloudy SCT060 11.7 -3.3 35% 76.33 1017.4
03 10:52 NW 17 G 39 16.09 Partly Cloudy SCT060 10.6 -3.3 38% 76.33 1017.7
03 09:52 NW 24 G 33 16.09 Partly Cloudy SCT050 10.6 -2.8 39% 76.35 1017.9
03 08:52 NW 17 G 30 16.09 A Few Clouds FEW020 8.9 -2.2 46% 7 76.35 1017.9
03 07:52 NW 19 G 33 16.09 Fair CLR 7.2 -1.7 7.2 4.4 54% 4 76.33 1017.6
03 06:52 NW 11 16.09 Fair CLR 5 -0.6 67% 3 76.25 1016.6
03 05:52 NW 11 16.09 A Few Clouds FEW080 5 -0.6 67% 3 76.2 1015.7
03 04:52 Calm 16.09 Mostly Cloudy BKN080 5 -0.6 67% 76.15 1015.3
03 03:52 W 7 16.09 A Few Clouds FEW075 4.4 -0.6 70% 3 76.12 1015.0
03 02:52 W 9 16.09 A Few Clouds FEW250 6.1 -0.6 63% 4 76.1 1014.5
03 01:52 NW 11 16.09 Partly Cloudy SCT100 SCT250 6.7 -0.6 12.8 6.7 60% 5 76.1 1014.3
03 00:52 NW 13 16.09 Partly Cloudy FEW070 SCT100 SCT250 7.2 -0.6 58% 5 76.1 1014.5
02 23:52 NW 15 16.09 Partly Cloudy FEW070 SCT100 SCT250 8.9 -1.7 48% 7 76.1 1014.5
02 22:52 N 19 G 33 16.09 Overcast BKN070 OVC100 11.1 -1.7 41% 76.07 1014.3
02 21:52 N 20 G 33 16.09 Mostly Cloudy BKN100 BKN180 11.7 -1.1 41% 76.05 1014.0
02 20:52 N 22 16.09 Mostly Cloudy BKN095 BKN180 12.2 -1.7 38% 76 1013.2
02 19:52 N 19 G 35 16.09 Mostly Cloudy SCT090 BKN170 BKN230 12.8 -2.2 15.6 12.8 36% 75.95 1012.5
02 18:52 N 17 16.09 Mostly Cloudy FEW075 BKN180 BKN250 13.9 -1.7 34% 75.92 1012.1
02 17:52 NW 22 G 31 16.09 Mostly Cloudy SCT075 BKN190 BKN250 14.4 -1.7 33% 75.92 1012.1
02 16:52 N 17 16.09 Mostly Cloudy SCT075 BKN190 BKN250 15 -1.1 33% 75.92 1011.9
02 15:52 NW 17 16.09 Mostly Cloudy SCT075 BKN190 BKN250 15 -1.7 32% 75.92 1012.1
02 14:52 NW 15 G 31 16.09 Mostly Cloudy SCT070 BKN190 BKN250 15.6 -1.1 32% 76 1013.0
02 13:52 N 15 16.09 Mostly Cloudy SCT060 SCT080 BKN190 BKN250 15 0 15 8.3 36% 76.05 1013.6
02 12:52 N 15 G 31 16.09 Mostly Cloudy FEW060 BKN190 BKN250 13.9 -1.1 36% 76.07 1014.0
02 11:52 Vrbl 9 16.09 Mostly Cloudy FEW055 BKN180 BKN250 12.2 -1.1 40% 76.12 1014.7
02 10:52 N 17 G 30 16.09 Mostly Cloudy FEW060 BKN180 BKN250 11.7 0 45% 76.12 1014.8
02 09:52 N 17 G 31 16.09 Mostly Cloudy FEW060 BKN190 BKN250 10.6 1.1 52% 76.1 1014.5
02 08:52 N 22 16.09 Mostly Cloudy SCT180 BKN250 9.4 0.6 55% 7 76.1 1014.5
02 07:52 NW 26 G 41 16.09 Mostly Cloudy FEW120 BKN250 8.3 0.6 12.8 8.3 59% 5 76.12 1014.7
02 06:52 N 24 G 44 16.09 Mostly Cloudy FEW070 FEW120 BKN250 8.3 0 56% 5 76.1 1014.4
02 05:52 NW 22 G 41 16.09 Mostly Cloudy FEW050 BKN250 9.4 1.1 56% 7 76.05 1013.8
02 04:52 NW 22 G 39 16.09 Mostly Cloudy SCT070 BKN250 10 2.2 59% 7 76.02 1013.3
02 03:52 NW 20 16.09 Overcast BKN075 OVC250 11.7 3.3 57% 76 1013.0
02 02:52 NW 20 16.09 Overcast BKN070 BKN110 OVC250 12.2 4.4 59% 75.97 1012.7
02 01:52 NW 17 G 31 16.09 Overcast BKN060 OVC110 12.8 4.4 17.8 12.8 57% 76 1013.2 0.03
02 00:52 NW 13 16.09 Overcast OVC060 13.3 5 57% 76 1013.2
01 23:52 N 15 16.09 Mostly Cloudy BKN060 BKN110 13.9 6.1 60% 75.97 1012.7 0.03
01 22:52 W 6 16.09 Overcast BKN075 OVC110 15 5.6 54% 75.9 1011.7
01 21:52 SW 7 16.09 Mostly Cloudy BKN065 BKN095 15 4.4 49% 75.87 1011.4
01 20:52 SE 13 16.09 Overcast OVC085 16.7 2.2 38% 75.77 1010.2
01 19:52 S 11 16.09 Overcast OVC100 17.8 0.6 20 17.8 32% 75.74 1009.8
01 18:52 S 19 16.09 A Few Clouds FEW090 FEW200 18.3 0.6 31% 75.72 1009.6
01 17:52 S 20 G 33 16.09 A Few Clouds FEW050 FEW200 19.4 1.1 30% 75.74 1009.9
01 16:52 S 15 G 39 16.09 A Few Clouds FEW050 FEW200 20 1.7 30% 75.77 1009.9
01 15:52 SW 20 G 39 16.09 A Few Clouds FEW050 FEW200 19.4 1.1 30% 75.84 1010.9
01 14:52 SW 15 G 30 16.09 A Few Clouds FEW050 FEW200 18.9 1.7 32% 75.92 1012.0
01 13:52 S 15 16.09 A Few Clouds FEW050 FEW250 17.8 1.1 17.8 9.4 33% 75.97 1012.8
01 12:52 Vrbl 7 16.09 A Few Clouds FEW250 16.1 1.1 36% 76.02 1013.6
01 11:52 Vrbl 6 16.09 A Few Clouds FEW250 15.6 1.1 38% 76.1 1014.4
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)