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.
11 10:52 N 20 16.09 A Few Clouds FEW042 FEW250 17.2 6.7 50% 76.99 1026.1
11 09:52 N 19 16.09 Partly Cloudy FEW042 SCT250 15.6 7.2 58% 76.94 1025.5
11 08:52 N 28 G 39 16.09 Mostly Cloudy FEW026 BKN041 BKN090 16.1 8.9 63% 76.89 1024.9
11 07:52 N 22 16.09 Mostly Cloudy SCT032 BKN050 BKN250 16.7 11.1 18.3 13.3 70% 76.81 1023.9
11 06:52 NW 9 16.09 Mostly Cloudy SCT039 BKN250 16.1 11.7 75% 76.73 1022.7
11 05:52 NW 19 16.09 Partly Cloudy FEW060 SCT250 16.7 11.7 73% 76.63 1021.4
11 04:52 N 9 16.09 Partly Cloudy FEW060 SCT250 15.6 10.6 72% 76.61 1021.1
11 03:52 NW 13 16.09 Mostly Cloudy BKN090 BKN150 17.2 10.6 65% 76.58 1020.7
11 02:52 NW 7 16.09 Mostly Cloudy FEW100 BKN200 15 7.8 62% 76.58 1020.7
11 01:52 Calm 16.09 Mostly Cloudy SCT100 BKN250 13.9 6.1 21.1 13.3 60% 76.58 1020.9
11 00:52 Calm 16.09 Mostly Cloudy BKN120 16.1 5 48% 76.58 1020.8
10 23:52 SW 13 16.09 Mostly Cloudy BKN120 18.3 5.6 43% 76.53 1020.0
10 22:52 S 11 16.09 Partly Cloudy SCT120 SCT250 18.3 5.6 43% 76.56 1020.4
10 21:52 S 11 16.09 A Few Clouds FEW250 19.4 5.6 41% 76.58 1020.8
10 20:52 SE 11 16.09 A Few Clouds FEW250 18.9 6.1 43% 76.53 1020.2
10 19:52 S 13 16.09 A Few Clouds FEW250 21.1 5.6 25.6 21.1 37% 76.5 1019.9
10 18:52 SE 17 16.09 Partly Cloudy FEW050 SCT250 23.9 5 29% 25 76.5 1019.8
10 17:52 SE 19 G 37 16.09 A Few Clouds FEW250 25 5 28% 25 76.5 1019.9
10 16:52 S 22 G 33 16.09 A Few Clouds FEW250 25 5.6 29% 25 76.53 1020.3
10 15:52 S 17 16.09 A Few Clouds FEW250 25 7.2 32% 25 76.58 1021.0
10 14:52 S 17 16.09 A Few Clouds FEW250 24.4 6.1 31% 25 76.68 1022.2
10 13:52 S 15 G 30 16.09 A Few Clouds FEW250 21.7 6.1 21.7 7.8 36% 76.81 1023.8
10 12:52 Vrbl 9 16.09 A Few Clouds FEW250 19.4 5.6 41% 76.91 1025.3
10 11:52 S 13 16.09 A Few Clouds FEW250 16.7 5.6 48% 77.01 1026.5
10 10:52 S 13 16.09 Fair CLR 15 5.6 54% 77.06 1027.2
10 09:52 Vrbl 9 16.09 A Few Clouds FEW250 11.7 6.7 72% 77.09 1027.9
10 08:52 S 11 16.09 A Few Clouds FEW250 9.4 6.1 80% 8 77.11 1028.2
10 07:52 SE 6 16.09 A Few Clouds FEW250 7.8 6.1 7.8 5.6 89% 77.17 1028.7
10 06:52 S 7 16.09 A Few Clouds FEW250 6.1 5 93% 5 77.14 1028.5
10 05:52 Calm 16.09 Fair CLR 6.1 5 93% 77.09 1027.9
10 04:52 SE 7 16.09 Fair CLR 6.1 5 93% 5 77.11 1028.2
10 03:52 SE 6 16.09 Fair CLR 6.7 5.6 93% 77.11 1028.2
10 02:52 S 6 16.09 Fair CLR 6.7 5.6 93% 77.14 1028.5
10 01:52 SE 7 16.09 Fair CLR 7.2 5 13.9 7.2 86% 6 77.19 1029.1
10 00:52 S 7 16.09 Fair CLR 8.3 5.6 83% 7 77.22 1029.4
09 23:52 S 7 16.09 Fair CLR 9.4 3.9 69% 9 77.24 1029.8
09 22:52 SE 6 16.09 Fair CLR 10.6 3.3 61% 77.24 1029.8
09 21:52 S 11 16.09 Fair CLR 11.7 3.3 57% 77.24 1029.9
09 20:52 S 9 16.09 Fair CLR 12.8 1.7 47% 77.22 1029.5
09 19:52 SE 11 16.09 A Few Clouds FEW250 13.9 1.7 17.2 13.9 44% 77.19 1029.1
09 18:52 SE 17 16.09 Partly Cloudy SCT250 16.1 0 34% 77.19 1029.3
09 17:52 S 11 G 28 16.09 Partly Cloudy SCT250 16.7 -0.6 31% 77.22 1029.4
09 16:52 SE 13 16.09 Partly Cloudy SCT250 16.7 -0.6 31% 77.24 1029.9
09 15:52 SE 19 G 39 16.09 Mostly Cloudy BKN250 16.1 -1.1 31% 77.29 1030.5
09 14:52 S 17 G 28 16.09 Mostly Cloudy BKN250 15 -2.2 31% 77.37 1031.5
09 13:52 SE 9 G 28 16.09 Mostly Cloudy BKN250 14.4 -1.7 15 3.9 33% 77.42 1032.2
09 12:52 SE 11 G 26 16.09 Mostly Cloudy BKN250 12.8 -1.7 37% 77.5 1033.3
09 11:52 SE 9 16.09 Mostly Cloudy BKN250 10.6 -1.1 45% 77.57 1034.5
09 10:52 SE 9 16.09 Mostly Cloudy BKN250 8.9 0 54% 8 77.62 1035.1
09 09:52 S 11 16.09 Mostly Cloudy FEW018 BKN250 7.2 0.6 63% 5 77.65 1035.4
09 08:52 S 11 16.09 Mostly Cloudy FEW016 BKN250 6.1 1.7 74% 4 77.67 1035.7
09 07:52 Vrbl 9 16.09 Mostly Cloudy BKN250 3.9 0.6 3.9 2.2 79% 2 77.65 1035.4
09 06:52 S 6 16.09 Mostly Cloudy FEW016 BKN250 2.8 0.6 86% 77.62 1035.0
09 05:52 S 6 16.09 Mostly Cloudy BKN016 3.3 0.6 83% 77.6 1034.8
09 04:52 SE 9 16.09 Overcast OVC015 3.9 0 76% 2 77.6 1034.5
09 03:52 SE 7 16.09 Overcast OVC016 3.3 -0.6 76% 2 77.6 1034.6
09 02:52 SE 7 16.09 Overcast OVC015 3.9 -0.6 73% 2 77.6 1034.7
09 01:52 S 7 16.09 Fair CLR 3.9 -1.1 8.9 3.9 70% 2 77.62 1034.9
09 00:52 SE 17 16.09 Fair CLR 5 -1.7 62% 2 77.62 1035.0
08 23:52 SE 11 16.09 Fair CLR 5.6 -3.3 53% 3 77.62 1034.8
08 22:52 SE 9 16.09 A Few Clouds FEW250 5.6 -4.4 49% 4 77.6 1034.8
08 21:52 SE 11 16.09 Partly Cloudy SCT250 7.2 -5 42% 5 77.6 1034.8
08 20:52 SE 15 16.09 Partly Cloudy SCT250 8.3 -7.2 33% 6 77.57 1034.2
08 19:52 SE 11 16.09 Partly Cloudy SCT250 8.9 -8.9 12.8 8.9 28% 7 77.5 1033.4
08 18:52 E 19 16.09 Mostly Cloudy BKN250 11.1 -10 22% 77.5 1033.2
08 17:52 E 15 16.09 Mostly Cloudy BKN250 12.2 -10.6 19% 77.5 1033.2
08 16:52 Vrbl 9 16.09 Partly Cloudy SCT250 12.2 -10.6 19% 77.52 1033.6
08 15:52 Calm 16.09 A Few Clouds FEW250 12.2 -8.9 22% 77.55 1034.0
08 14:52 Vrbl 9 16.09 A Few Clouds FEW250 10.6 -9.4 24% 77.6 1034.7
08 13:52 Vrbl 6 16.09 Fair CLR 10 -8.3 10 1.7 27% 77.65 1035.2
08 12:52 Vrbl 6 16.09 Fair CLR 8.9 -10.6 24% 77.7 1035.9
08 11:52 Calm 16.09 Fair CLR 7.2 -11.1 26% 77.75 1036.7
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)