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.
05 06:52 Calm 16.09 A Few Clouds FEW250 15.6 13.3 86% 76.43 1018.6
05 05:52 Calm 16.09 A Few Clouds FEW250 13.3 11.7 90% 76.4 1018.2
05 04:52 Calm 16.09 Fair CLR 13.9 11.7 87% 76.38 1018.1
05 03:52 Calm 16.09 Fair CLR 15.6 12.2 80% 76.4 1018.2
05 02:52 Calm 16.09 Fair CLR 16.1 12.2 78% 76.43 1018.5
05 01:52 Calm 16.09 Fair CLR 15.6 12.2 27.8 15 80% 76.4 1018.3
05 00:52 Calm 16.09 Fair CLR 16.7 12.2 75% 76.4 1018.4
04 23:52 Calm 16.09 Fair CLR 17.8 12.2 70% 76.38 1018.0
04 22:52 Calm 16.09 Mostly Cloudy BKN250 18.3 11.7 66% 76.38 1018.0
04 21:52 S 7 16.09 Mostly Cloudy BKN250 18.3 11.7 66% 76.35 1017.8
04 20:52 Calm 16.09 Mostly Cloudy BKN250 22.2 12.2 53% 76.35 1017.6
04 19:52 W 9 16.09 Mostly Cloudy BKN250 27.8 10 30 27.8 33% 27 76.35 1017.7
04 18:52 W 13 16.09 Mostly Cloudy BKN250 28.9 9.4 30% 28 76.38 1017.9
04 17:52 W 9 16.09 Mostly Cloudy BKN250 30 10 29% 29 76.4 1018.6
04 16:52 W 9 16.09 Mostly Cloudy BKN250 30 8.9 27% 29 76.45 1019.2
04 15:52 Vrbl 9 16.09 Mostly Cloudy BKN250 30 9.4 28% 29 76.5 1019.9
04 14:52 NW 9 16.09 Partly Cloudy SCT250 29.4 8.9 28% 28 76.56 1020.5
04 13:52 N 7 16.09 A Few Clouds FEW250 29.4 8.9 30 18.9 28% 28 76.61 1021.0
04 12:52 Vrbl 9 16.09 Fair CLR 28.9 8.3 27% 28 76.66 1021.6
04 11:52 NW 19 16.09 Fair CLR 28.3 8.3 28% 27 76.68 1022.2
04 10:52 NW 13 16.09 Fair CLR 27.2 10.6 35% 27 76.71 1022.4
04 09:52 NW 13 16.09 Fair CLR 25 11.1 42% 26 76.73 1022.7
04 08:52 NW 13 16.09 Fair CLR 22.8 9.4 43% 76.76 1023.0
04 07:52 Calm 16.09 Fair CLR 18.9 10.6 18.9 10 59% 76.73 1022.8
04 06:52 Calm 9.66 Fair with Haze CLR 13.9 11.1 83% 76.73 1022.8
04 05:52 NW 6 12.87 Fair CLR 11.7 8.9 83% 76.71 1022.3
04 04:52 Calm 16.09 Fair CLR 11.1 8.3 83% 76.68 1022.3
04 03:52 Calm 16.09 Fair CLR 10.6 8.9 89% 76.68 1022.2
04 02:52 Calm 16.09 Fair CLR 12.8 8.3 74% 76.68 1022.1
04 01:52 SE 6 16.09 Fair CLR 15 8.3 24.4 12.8 64% 76.68 1022.3
04 00:52 Calm 16.09 Fair CLR 17.2 7.8 54% 76.71 1022.5
03 23:52 S 7 16.09 Fair CLR 18.9 6.7 45% 76.73 1022.6
03 22:52 SE 9 16.09 Fair CLR 18.9 6.7 45% 76.73 1022.9
03 21:52 E 6 16.09 Fair CLR 18.3 7.8 51% 76.73 1022.7
03 20:52 E 7 16.09 A Few Clouds FEW250 21.7 7.2 39% 76.71 1022.4
03 19:52 NE 13 16.09 A Few Clouds FEW250 24.4 6.7 27.8 24.4 32% 25 76.68 1022.2
03 18:52 NW 11 16.09 A Few Clouds FEW250 27.2 6.1 26% 26 76.66 1022.0
03 17:52 Calm 16.09 Fair CLR 27.2 6.1 26% 26 76.68 1022.3
03 16:52 Vrbl 7 16.09 A Few Clouds FEW250 27.2 6.1 26% 26 76.71 1022.6
03 15:52 N 11 G 26 16.09 A Few Clouds FEW065 27.8 6.7 26% 27 76.76 1023.1
03 14:52 Vrbl 9 16.09 A Few Clouds FEW065 26.7 6.1 27% 26 76.81 1023.9
03 13:52 NE 20 16.09 Fair CLR 26.7 6.1 26.7 16.7 27% 26 76.86 1024.5
03 12:52 N 13 G 30 16.09 Fair CLR 25.6 7.2 31% 26 76.89 1024.7
03 11:52 N 22 G 35 16.09 A Few Clouds FEW050 25 6.7 31% 25 76.91 1025.2
03 10:52 N 17 16.09 A Few Clouds FEW050 23.3 5.6 32% 76.94 1025.4
03 09:52 N 17 16.09 A Few Clouds FEW110 FEW250 22.8 6.1 34% 76.94 1025.5
03 08:52 NW 13 16.09 A Few Clouds FEW110 FEW250 20 8.3 47% 76.91 1025.1
03 07:52 NW 7 16.09 A Few Clouds FEW250 16.7 7.8 16.7 10 56% 76.86 1024.6
03 06:52 NW 7 16.09 A Few Clouds FEW250 14.4 7.8 65% 76.84 1024.1
03 05:52 Calm 16.09 A Few Clouds FEW250 10.6 7.8 83% 76.81 1023.8
03 04:52 Calm 16.09 Fair CLR 11.7 7.2 74% 76.78 1023.6
03 03:52 NW 6 16.09 Fair CLR 13.9 7.8 67% 76.78 1023.5
03 02:52 NW 9 16.09 Fair CLR 13.9 7.2 64% 76.78 1023.5
03 01:52 W 6 16.09 Fair CLR 10.6 7.8 21.7 10.6 83% 76.78 1023.5
03 00:52 W 6 16.09 A Few Clouds FEW100 13.9 7.8 67% 76.76 1023.2
02 23:52 Calm 16.09 Fair CLR 12.8 6.7 67% 76.76 1023.3
02 22:52 Calm 16.09 Fair CLR 12.8 7.2 69% 76.76 1023.3
02 21:52 Calm 16.09 A Few Clouds FEW140 13.9 6.7 62% 76.73 1022.8
02 20:52 E 6 16.09 A Few Clouds FEW250 16.1 6.1 52% 76.71 1022.6
02 19:52 NE 13 16.09 Partly Cloudy FEW120 SCT250 21.7 3.3 24.4 21.7 30% 76.71 1022.4
02 18:52 NE 22 16.09 Partly Cloudy FEW080 SCT250 22.8 3.3 28% 76.68 1022.1
02 17:52 NE 15 16.09 Partly Cloudy FEW085 SCT250 23.3 2.2 25% 76.68 1022.2
02 16:52 NE 22 16.09 A Few Clouds FEW085 23.9 3.9 27% 25 76.68 1022.3
02 15:52 NW 7 16.09 Partly Cloudy SCT080 23.3 4.4 29% 76.71 1022.4
02 14:52 Vrbl 11 16.09 A Few Clouds FEW060 22.8 3.9 29% 76.73 1022.8
02 13:52 Vrbl 9 16.09 A Few Clouds FEW060 22.2 5 22.2 14.4 33% 76.76 1023.1
02 12:52 Vrbl 11 16.09 A Few Clouds FEW060 21.1 3.9 32% 76.78 1023.6
02 11:52 Calm 16.09 A Few Clouds FEW060 19.4 5 39% 76.84 1024.1
02 10:52 NE 11 16.09 Fair CLR 18.9 6.7 45% 76.84 1024.2
02 09:52 Vrbl 6 16.09 A Few Clouds FEW060 17.2 6.7 50% 76.84 1024.2
02 08:52 N 11 16.09 Partly Cloudy SCT070 16.1 8.3 60% 76.84 1024.1
02 07:52 NE 7 16.09 Partly Cloudy SCT070 14.4 9.4 14.4 11.7 72% 76.81 1023.7
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)