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 14:52 Vrbl 6 16.09 A Few Clouds FEW250 26.7 10 35% 26 76.76 1023.1
04 13:52 Vrbl 7 16.09 A Few Clouds FEW050 FEW250 26.7 11.1 26.7 8.9 38% 27 76.78 1023.6
04 12:52 S 9 16.09 A Few Clouds FEW250 25 11.7 43% 26 76.86 1024.4
04 11:52 Calm 16.09 A Few Clouds FEW250 22.8 11.1 48% 76.89 1025.0
04 10:52 Calm 16.09 A Few Clouds FEW250 20.6 12.2 59% 76.91 1025.4
04 09:52 Calm 14.48 Fair CLR 16.7 11.7 73% 76.96 1025.8
04 08:52 SW 6 14.48 Fair CLR 13.3 11.1 87% 76.94 1025.6
04 07:52 Calm 14.48 Fair CLR 8.9 8.9 10 7.2 100% 76.91 1025.3
04 06:52 Calm 16.09 Fair CLR 7.8 7.8 100% 76.86 1024.7
04 05:52 Calm 16.09 Fair CLR 7.8 7.8 100% 76.84 1024.3
04 04:52 SE 6 14.48 Fair CLR 8.9 8.3 96% 76.81 1024.0
04 03:52 Calm 14.48 Fair CLR 8.9 8.9 100% 76.81 1024.1
04 02:52 Calm 16.09 Fair CLR 10 9.4 96% 76.84 1024.3
04 01:52 SE 6 16.09 Fair CLR 10 10 17.2 10 100% 76.86 1024.7
04 00:52 Calm 16.09 Fair CLR 10.6 9.4 92% 76.89 1024.9
03 23:52 Calm 16.09 A Few Clouds FEW250 12.2 10 87% 76.91 1025.3
03 22:52 S 7 16.09 Fair CLR 13.3 10.6 84% 76.91 1025.3
03 21:52 Calm 16.09 Fair CLR 14.4 10 75% 76.91 1025.4
03 20:52 S 6 16.09 A Few Clouds FEW250 16.1 10 67% 76.89 1025.1
03 19:52 S 7 16.09 Partly Cloudy FEW140 SCT250 17.2 10 23.3 17.2 63% 76.89 1025.0
03 18:52 S 9 16.09 Partly Cloudy FEW140 SCT250 18.9 10.6 59% 76.89 1024.9
03 17:52 S 11 16.09 Mostly Cloudy BKN250 21.1 10 49% 76.89 1024.9
03 16:52 SW 11 16.09 Mostly Cloudy BKN250 22.8 9.4 43% 76.89 1024.9
03 15:52 S 11 16.09 Mostly Cloudy BKN200 22.8 9.4 43% 76.91 1025.4
03 14:52 Calm 16.09 Mostly Cloudy BKN250 22.2 8.9 43% 76.99 1026.2
03 13:52 S 15 16.09 Mostly Cloudy FEW050 BKN250 22.2 9.4 22.2 8.9 44% 77.04 1027.0
03 12:52 Vrbl 6 16.09 Mostly Cloudy FEW050 BKN250 21.7 8.9 44% 77.14 1028.1
03 11:52 SE 11 16.09 Mostly Cloudy FEW050 BKN250 20 8.9 49% 77.19 1028.9
03 10:52 Vrbl 7 16.09 Mostly Cloudy BKN250 18.9 8.3 50% 77.24 1029.6
03 09:52 SW 9 16.09 Mostly Cloudy BKN250 17.2 10 63% 77.27 1029.9
03 08:52 Calm 14.48 Fair CLR 13.9 10.6 81% 77.27 1030.0
03 07:52 Calm 16.09 Partly Cloudy SCT250 8.9 8.3 11.1 7.2 96% 77.24 1029.7
03 06:52 Calm 16.09 A Few Clouds FEW250 7.8 7.2 96% 77.22 1029.4
03 05:52 Calm 16.09 Fair CLR 8.3 7.8 97% 77.22 1029.4
03 04:52 Calm 16.09 Fair CLR 8.3 8.3 100% 77.22 1029.3
03 03:52 Calm 16.09 Fair CLR 8.3 7.8 97% 77.22 1029.5
03 02:52 Calm 16.09 Fair CLR 9.4 8.9 97% 77.24 1029.7
03 01:52 S 6 16.09 Fair CLR 11.1 9.4 17.2 11.1 89% 77.29 1030.4
03 00:52 Calm 16.09 Fair CLR 12.8 9.4 80% 77.29 1030.4
02 23:52 SE 11 16.09 Fair CLR 14.4 10 75% 77.32 1030.6
02 22:52 SE 11 16.09 A Few Clouds FEW250 14.4 10 75% 77.32 1030.6
02 21:52 S 9 16.09 A Few Clouds FEW250 15 9.4 69% 77.29 1030.4
02 20:52 SE 9 16.09 A Few Clouds FEW050 FEW250 15.6 8.9 65% 77.27 1030.2
02 19:52 SE 11 16.09 Partly Cloudy FEW050 SCT250 16.7 8.3 22.8 16.1 58% 77.27 1029.9
02 18:52 SE 11 16.09 Partly Cloudy FEW050 SCT250 18.3 8.9 54% 77.22 1029.3
02 17:52 SE 13 16.09 Mostly Cloudy FEW050 BKN250 20 8.3 47% 77.19 1029.2
02 16:52 S 13 16.09 Mostly Cloudy SCT050 BKN250 21.1 8.3 44% 77.19 1029.0
02 15:52 E 17 16.09 Mostly Cloudy BKN050 BKN250 20.6 9.4 49% 77.19 1028.9
02 14:52 E 13 16.09 Mostly Cloudy BKN050 BKN250 20.6 8.9 47% 77.22 1029.4
02 13:52 E 9 16.09 Mostly Cloudy BKN048 BKN055 20.6 8.9 22.2 10 47% 77.27 1030.1
02 12:52 Vrbl 7 16.09 Mostly Cloudy SCT040 BKN049 21.1 9.4 47% 77.32 1030.6
02 11:52 Vrbl 6 16.09 Mostly Cloudy SCT039 BKN046 20 9.4 51% 77.32 1030.7
02 10:52 Vrbl 6 16.09 Partly Cloudy SCT035 SCT250 18.3 10.6 61% 77.34 1030.9
02 09:52 Calm 16.09 A Few Clouds FEW033 FEW250 17.2 11.1 68% 77.32 1030.8
02 08:52 N 6 16.09 A Few Clouds FEW250 13.3 9.4 77% 77.29 1030.3
02 07:52 NW 7 16.09 A Few Clouds FEW250 10 8.3 10 6.7 89% 9 77.22 1029.4
02 06:52 Calm 16.09 Fair CLR 7.2 6.7 97% 77.17 1028.5
02 05:52 Calm 16.09 Fair CLR 7.8 6.7 93% 77.11 1028.0
02 04:52 NW 6 16.09 Fair CLR 7.2 6.1 93% 77.09 1027.5
02 03:52 Calm 16.09 Fair CLR 7.8 6.1 89% 77.04 1026.8
02 02:52 E 6 16.09 Fair CLR 6.7 5.6 93% 77.01 1026.5
02 01:52 Calm 16.09 Fair CLR 8.3 6.1 17.8 8.3 86% 76.99 1026.2
02 00:52 Calm 16.09 Fair CLR 9.4 6.1 80% 76.94 1025.7
01 23:52 Calm 16.09 Fair CLR 10.6 6.1 74% 76.94 1025.5
01 22:52 Calm 16.09 Fair CLR 11.7 6.7 72% 76.89 1025.0
01 21:52 E 7 16.09 Fair CLR 14.4 6.1 58% 76.86 1024.5
01 20:52 NE 7 16.09 Fair CLR 16.1 5 48% 76.81 1023.8
01 19:52 NE 11 16.09 Fair CLR 17.8 5 24.4 17.8 43% 76.73 1023.0
01 18:52 NE 17 16.09 Fair CLR 20.6 4.4 35% 76.68 1022.1
01 17:52 N 7 16.09 A Few Clouds FEW060 22.8 5 32% 76.63 1021.4
01 16:52 NE 11 16.09 A Few Clouds FEW055 FEW250 23.9 6.1 32% 25 76.58 1020.9
01 15:52 N 15 16.09 Partly Cloudy FEW050 SCT200 23.9 6.1 32% 25 76.58 1020.8
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)