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.
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
10 19:52 N 11 16.09 Mostly Cloudy BKN095 BKN130 18.3 15 27.2 17.8 81% 76.15 1015.1 0.23
10 18:52 NW 11 16.09 Overcast FEW070 BKN090 OVC140 18.3 15 81% 76.15 1015.1
10 17:52 N 17 16.09 Mostly Cloudy FEW070 BKN100 BKN140 20 15.6 76% 76.05 1013.6
10 16:52 NE 13 12.87 Light Rain SCT070 BKN090 18.3 16.1 87% 75.97 1012.9 0.18 0.23
10 15:52 N 9 16.09 Mostly Cloudy FEW047 BKN070 BKN100 23.9 12.2 48% 25 75.92 1012.1 0.05
10 14:52 SW 7 16.09 Mostly Cloudy SCT075TCU BKN095 BKN250 25.6 9.4 36% 26 75.95 1012.4
10 13:52 NW 13 16.09 Mostly Cloudy BKN070 BKN250 26.7 9.4 27.8 14.4 34% 26 75.97 1012.6
10 12:52 NW 11 16.09 A Few Clouds FEW060 FEW250 25.6 10 37% 26 76.02 1013.2
10 11:52 SW 9 16.09 Partly Cloudy FEW060 SCT250 25 10.6 40% 26 76.05 1013.6
10 10:52 SW 9 16.09 Partly Cloudy SCT250 23.3 11.1 46% 76.05 1013.5
10 09:52 S 9 16.09 A Few Clouds FEW250 20.6 11.7 57% 76 1013.1
10 08:52 Calm 16.09 A Few Clouds FEW250 17.2 12.2 73% 76.02 1013.4
10 07:52 N 7 16.09 A Few Clouds FEW100 FEW250 14.4 11.1 14.4 8.3 81% 76.02 1013.3
10 06:52 Calm 16.09 A Few Clouds FEW100 FEW250 10.6 10 96% 75.95 1012.2
10 05:52 Calm 16.09 A Few Clouds FEW250 8.9 8.3 96% 75.87 1011.5
10 04:52 Calm 16.09 Fair CLR 8.9 8.9 100% 75.87 1011.4
10 03:52 Calm 16.09 Fair CLR 9.4 8.9 97% 75.84 1010.9
10 02:52 Calm 16.09 Fair CLR 10 9.4 96% 75.79 1010.5
10 01:52 W 6 16.09 Fair CLR 10.6 9.4 21.7 10.6 92% 75.77 1010.1
10 00:52 Calm 16.09 Fair CLR 11.7 10 89% 75.79 1010.2
09 23:52 Calm 16.09 A Few Clouds FEW100 13.3 11.1 87% 75.77 1009.9
09 22:52 Calm 16.09 A Few Clouds FEW100 14.4 10.6 78% 75.77 1009.9
09 21:52 Calm 16.09 Partly Cloudy SCT100 15 10 72% 75.72 1009.3
09 20:52 SE 6 16.09 Fair CLR 16.1 10 67% 75.67 1008.5
09 19:52 Calm 16.09 Fair CLR 21.7 9.4 24.4 20 46% 75.64 1008.1
09 18:52 Calm 16.09 Mostly Cloudy BKN070 BKN120 22.8 9.4 43% 75.62 1007.8
09 17:52 SW 9 16.09 Overcast OVC110 23.3 9.4 41% 75.62 1007.8
09 16:52 W 9 16.09 Mostly Cloudy FEW050 BKN120 23.3 8.9 40% 75.59 1007.6
09 15:52 SW 9 16.09 Mostly Cloudy FEW049 FEW080 BKN150 22.2 10.6 48% 75.62 1008.0
09 14:52 SW 17 G 30 16.09 Mostly Cloudy SCT055 BKN080 BKN150 21.1 10.6 51% 75.69 1008.9
09 13:52 W 7 16.09 Overcast FEW050 BKN075 BKN120 OVC180 20 9.4 21.1 14.4 51% 75.77 1009.8
09 12:52 SW 15 16.09 Mostly Cloudy SCT046 BKN075 BKN250 20 9.4 51% 75.77 1010.1
09 11:52 Vrbl 9 16.09 Mostly Cloudy FEW050 BKN070 BKN085 BKN250 20 8.9 49% 75.79 1010.3
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)