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.
13 18:52 S 19 16.09 Mostly Cloudy FEW032 FEW085 SCT140 BKN150 BKN250 18.9 12.8 68% 75.59 1007.8
13 17:52 S 19 G 31 16.09 Mostly Cloudy FEW032 SCT085 BKN120 BKN160 BKN250 17.8 12.2 70% 75.67 1008.6
13 16:52 S 11 16.09 Mostly Cloudy FEW032 SCT085 BKN120 BKN160 18.3 12.8 70% 75.72 1009.2 0.03 0.03
13 15:52 SW 9 16.09 Light Rain FEW065 BKN080 BKN100 OVC150 19.4 11.1 59% 75.79 1010.1
13 14:52 SW 28 G 43 16.09 Mostly Cloudy SCT065CB BKN085 BKN170 BKN250 22.2 8.3 41% 75.82 1010.6
13 13:52 S 26 G 41 16.09 Mostly Cloudy BKN080 BKN170 BKN230 22.8 8.3 25 15 40% 75.84 1011.0
13 12:52 SW 22 G 41 16.09 Mostly Cloudy SCT090 BKN170 BKN250 23.3 7.8 37% 75.92 1012.0
13 11:52 S 30 G 41 16.09 Mostly Cloudy SCT090 BKN170 BKN250 21.7 7.2 39% 75.95 1012.5
13 10:52 S 26 G 41 16.09 Mostly Cloudy BKN090 BKN250 20.6 7.2 42% 76.02 1013.4
13 09:52 S 24 G 35 16.09 Mostly Cloudy BKN090 BKN250 18.9 7.2 47% 76.07 1014.0
13 08:52 S 24 G 37 16.09 Partly Cloudy FEW100 SCT250 16.7 6.1 50% 76.12 1014.6
13 07:52 S 26 G 39 16.09 Partly Cloudy FEW100 SCT250 14.4 5.6 15 13.3 56% 76.15 1014.9
13 06:52 S 15 G 31 16.09 A Few Clouds FEW100 13.3 5 57% 76.17 1015.3
13 05:52 S 20 G 37 16.09 A Few Clouds FEW100 13.3 4.4 55% 76.17 1015.2
13 04:52 S 22 G 44 16.09 A Few Clouds FEW100 13.9 4.4 53% 76.17 1015.4
13 03:52 S 20 G 33 16.09 A Few Clouds FEW100 14.4 5 53% 76.23 1015.9
13 02:52 S 22 G 39 16.09 A Few Clouds FEW100 14.4 5 53% 76.25 1016.3
13 01:52 S 15 G 35 16.09 Fair CLR 15 5.6 20 15 54% 76.3 1016.9
13 00:52 S 17 16.09 A Few Clouds FEW120 15 7.2 60% 76.35 1017.7
12 23:52 S 13 16.09 Fair CLR 15.6 7.8 60% 76.35 1017.9
12 22:52 SE 13 16.09 A Few Clouds FEW100 15 7.8 62% 76.38 1018.2
12 21:52 SE 13 16.09 A Few Clouds FEW100 16.7 7.8 56% 76.4 1018.6
12 20:52 SE 15 16.09 Fair CLR 17.8 7.2 50% 76.4 1018.3
12 19:52 S 11 16.09 A Few Clouds FEW060 FEW250 20 5.6 22.2 18.9 39% 76.38 1018.1
12 18:52 S 15 G 30 16.09 Partly Cloudy FEW050 SCT250 21.1 5.6 37% 76.38 1018.2
12 17:52 S 19 G 30 16.09 Fair CLR 21.7 5 34% 76.4 1018.4
12 16:52 S 13 G 26 16.09 Partly Cloudy SCT250 21.7 5.6 35% 76.43 1018.9
12 15:52 S 13 G 26 16.09 Partly Cloudy SCT250 21.1 5 35% 76.45 1019.2
12 14:52 S 11 G 30 16.09 A Few Clouds FEW250 20.6 5 36% 76.53 1020.2
12 13:52 S 13 16.09 A Few Clouds FEW250 19.4 3.9 19.4 10 36% 76.63 1021.5
12 12:52 Vrbl 6 16.09 A Few Clouds FEW250 17.2 2.2 37% 76.68 1022.4
12 11:52 Vrbl 7 16.09 Fair CLR 16.7 2.2 38% 76.76 1023.3
12 10:52 Calm 16.09 Fair CLR 15 1.1 39% 76.84 1024.2
12 08:52 E 6 16.09 A Few Clouds FEW090 12.2 1.7 49% 76.86 1024.8
12 07:52 NW 6 16.09 A Few Clouds FEW080 10 3.9 10 3.3 66% 76.84 1024.4
12 06:52 Calm 16.09 A Few Clouds FEW080 5 3.9 93% 76.78 1023.8
12 05:52 Calm 16.09 A Few Clouds FEW100 3.3 2.8 97% 76.73 1022.9
12 04:52 NW 6 16.09 Fair CLR 5 4.4 96% 76.71 1022.7
12 03:52 Calm 16.09 Fair CLR 5 4.4 96% 76.66 1022.0
12 02:52 Calm 16.09 Fair CLR 5 3.9 93% 76.63 1021.8
12 01:52 Calm 16.09 Fair CLR 5.6 5 13.3 5 96% 76.63 1021.7
12 00:52 Calm 16.09 Fair CLR 8.9 6.1 83% 76.63 1021.8
11 23:52 S 15 16.09 Fair CLR 10 6.1 77% 8 76.63 1021.6
11 22:52 S 11 16.09 Fair CLR 10.6 6.7 77% 76.61 1021.4
11 21:52 S 13 16.09 Fair CLR 11.1 6.1 72% 76.58 1021.0
11 20:52 S 9 16.09 A Few Clouds FEW100 11.7 5.6 66% 76.53 1020.4
11 19:52 S 6 16.09 A Few Clouds FEW100 12.8 4.4 17.8 12.2 57% 76.5 1019.7
11 18:52 S 6 16.09 A Few Clouds FEW055 FEW120 16.7 0 32% 76.45 1019.3
11 17:52 NW 9 16.09 A Few Clouds FEW040 FEW100 17.2 -0.6 30% 76.45 1019.1
11 16:52 Vrbl 9 16.09 A Few Clouds FEW045 FEW120 17.2 1.1 34% 76.43 1019.0
11 14:52 Calm 16.09 Mostly Cloudy FEW040 BKN100 12.8 5.6 62% 76.56 1020.5
11 13:52 S 13 16.09 Mostly Cloudy FEW035 BKN120 12.2 6.7 12.2 10 69% 76.61 1021.2 0.08
11 12:52 SW 11 16.09 Mostly Cloudy FEW050 BKN100 11.7 6.1 69% 76.66 1021.9
11 11:52 SW 6 16.09 Mostly Cloudy BKN120 11.1 5.6 69% 76.66 1022.0
11 10:52 Calm 16.09 Overcast OVC075 10.6 6.7 77% 76.68 1022.1 0.08
11 09:52 Calm 16.09 Light Rain OVC070 11.1 6.1 72% 76.63 1021.7 0.03
11 08:52 N 7 16.09 Light Rain OVC075 11.1 3.9 61% 76.61 1021.3 0.05
11 07:52 N 15 16.09 Overcast SCT065 OVC085 12.2 1.7 16.1 11.7 49% 76.58 1020.9
11 06:52 N 13 16.09 Overcast FEW065 OVC095 12.2 2.2 51% 76.53 1020.1
11 05:52 N 9 16.09 Light Rain BKN080 OVC100 12.2 3.9 57% 76.48 1019.4
11 04:52 NE 24 G 35 16.09 Overcast OVC060 13.3 2.2 47% 76.43 1018.7
11 03:52 N 15 16.09 Overcast OVC075 14.4 3.3 48% 76.4 1018.5
11 02:52 N 19 16.09 Overcast BKN060 OVC095 15 5.6 54% 76.38 1018.1
11 01:52 N 17 16.09 Overcast BKN055 BKN070 OVC100 16.7 9.4 18.9 16.1 62% 76.35 1017.6
11 00:52 NW 7 16.09 Overcast BKN080 OVC160 17.2 12.8 76% 76.35 1017.6
10 23:52 N 19 16.09 Overcast FEW050 OVC160 17.8 12.8 73% 76.3 1017.1
10 22:52 N 17 16.09 Partly Cloudy FEW050 SCT070 SCT085 17.8 15 84% 76.3 1017.0
10 21:52 Calm 16.09 Light Rain FEW050 SCT075 BKN100 17.2 15.6 90% 76.28 1016.7
10 20:52 Calm 16.09 Mostly Cloudy SCT080 BKN120 BKN180 17.2 15.6 90% 76.23 1015.9
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)