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.
23 18:52 Calm 16.09 Partly Cloudy FEW100 SCT250 27.2 10 34% 27 75.77 1009.9
23 17:52 NW 9 16.09 Partly Cloudy FEW075 FEW110 SCT250 28.3 10 32% 27 75.79 1010.2
23 16:52 Calm 16.09 Partly Cloudy FEW075 SCT250 28.3 10.6 33% 27 75.82 1010.4
23 15:52 W 20 G 35 16.09 Partly Cloudy FEW075 SCT250 28.3 9.4 31% 27 75.87 1011.3
23 14:52 W 13 G 28 16.09 Partly Cloudy FEW065 SCT250 27.2 10.6 35% 27 75.95 1012.4
23 13:52 NW 13 16.09 Partly Cloudy SCT050 SCT250 26.7 10.6 26.7 17.8 37% 26 76.05 1013.5
23 12:52 Vrbl 9 16.09 Partly Cloudy SCT055 25.6 11.1 40% 26 76.1 1014.4
23 11:52 NW 17 16.09 Partly Cloudy FEW050 FEW150 SCT250 25 11.7 43% 26 76.15 1015.1
23 10:52 NW 22 G 35 14.48 A Few Clouds FEW150 FEW250 23.3 11.1 46% 76.17 1015.4
23 09:52 W 15 16.09 A Few Clouds FEW010 FEW250 22.2 11.1 50% 76.17 1015.4
23 08:52 NW 9 16.09 A Few Clouds FEW110 FEW250 20.6 11.1 55% 76.17 1015.5
23 07:52 Calm 16.09 Partly Cloudy SCT110 SCT250 18.3 11.7 18.3 11.1 66% 76.17 1015.3
23 06:52 W 6 16.09 A Few Clouds FEW100 FEW250 11.7 9.4 86% 76.15 1014.8
23 05:52 SW 7 16.09 Mostly Cloudy BKN100 11.7 9.4 86% 76.1 1014.5
23 04:52 Calm 16.09 Partly Cloudy SCT080 11.7 8.9 83% 76.07 1014.1
23 03:52 Calm 16.09 Mostly Cloudy BKN080 12.2 8.9 80% 76.1 1014.4
23 02:52 Calm 16.09 A Few Clouds FEW085 12.2 8.3 77% 76.1 1014.2
23 01:52 Calm 16.09 Fair CLR 12.8 8.3 22.2 12.2 74% 76.1 1014.4
23 00:52 Calm 16.09 Fair CLR 13.9 8.3 69% 76.12 1014.7
22 23:52 W 7 16.09 Fair CLR 17.2 7.8 54% 76.12 1014.6
22 22:52 W 9 16.09 Fair CLR 18.9 7.8 49% 76.1 1014.3
22 21:52 W 7 16.09 Fair CLR 19.4 7.8 47% 76.07 1014.1
22 20:52 W 7 16.09 A Few Clouds FEW070 21.1 7.8 42% 76.05 1013.6
22 19:52 W 11 16.09 A Few Clouds FEW070 22.2 7.8 25.6 22.2 40% 75.97 1012.9
22 18:52 SW 9 16.09 A Few Clouds FEW070 23.9 9.4 40% 25 75.97 1012.5
22 17:52 SW 17 16.09 Partly Cloudy SCT065 25 9.4 37% 26 75.97 1012.5
22 16:52 W 15 16.09 Partly Cloudy SCT065 SCT250 24.4 8.9 37% 25 75.97 1012.7
22 15:52 SW 19 G 35 16.09 Partly Cloudy FEW065 SCT075 SCT250 25 8.3 35% 26 76.02 1013.2
22 14:52 SW 17 G 31 16.09 Partly Cloudy FEW060 SCT120 SCT250 23.9 8.3 37% 25 76.07 1014.1
22 13:52 S 11 16.09 Mostly Cloudy FEW055 BKN120 BKN250 21.7 7.8 21.7 11.1 41% 76.17 1015.3
22 12:52 SW 9 16.09 Mostly Cloudy FEW045 BKN110 BKN250 17.8 7.2 50% 76.25 1016.3
22 11:52 S 6 16.09 Overcast BKN090 OVC110 16.1 7.8 58% 76.28 1016.8
22 10:52 Calm 16.09 Light Rain BKN100 OVC200 14.4 6.1 58% 76.33 1017.4
22 09:52 S 7 16.09 Overcast FEW038 SCT070 BKN085 OVC220 14.4 4.4 51% 76.3 1017.3
22 08:52 W 6 16.09 Overcast FEW070 BKN130 OVC200 12.2 3.3 55% 76.33 1017.4
22 07:52 S 7 16.09 Mostly Cloudy BKN170 BKN250 11.1 2.2 11.7 10 55% 76.3 1017.3
22 06:52 S 13 16.09 Mostly Cloudy BKN170 BKN250 10.6 1.7 54% 76.28 1016.8
22 05:52 S 17 16.09 Overcast OVC170 10.6 1.1 52% 76.3 1017.0
22 04:52 S 17 16.09 Mostly Cloudy BKN200 10.6 0.6 50% 76.3 1017.2
22 03:52 S 13 16.09 Overcast OVC150 11.1 0 47% 76.35 1017.9
22 02:52 S 13 16.09 Overcast OVC170 11.7 0.6 47% 76.4 1018.4
22 01:52 S 13 16.09 Mostly Cloudy BKN180 11.1 0.6 15 10.6 49% 76.45 1019.2
22 00:52 S 9 16.09 Mostly Cloudy FEW120 BKN180 11.1 0.6 49% 76.53 1020.3
21 23:52 S 11 16.09 Partly Cloudy SCT250 10.6 1.1 52% 76.58 1020.8
21 22:52 SE 17 16.09 Mostly Cloudy SCT180 BKN250 11.7 1.7 51% 76.61 1021.3
21 21:52 SE 13 16.09 Mostly Cloudy BKN160 BKN250 12.2 1.1 47% 76.63 1021.7
21 20:52 SE 17 16.09 Mostly Cloudy SCT160 BKN250 13.3 0 40% 76.61 1021.5
21 19:52 SE 9 16.09 Partly Cloudy FEW140 SCT250 15 -2.8 17.2 13.9 29% 76.63 1021.6
21 18:52 S 17 16.09 A Few Clouds FEW250 16.1 -3.3 26% 76.61 1021.3
21 17:52 S 20 16.09 A Few Clouds FEW250 16.7 -4.4 23% 76.63 1021.6
21 16:52 Vrbl 9 16.09 A Few Clouds FEW180 FEW250 16.7 -4.4 23% 76.68 1022.3
21 15:52 Vrbl 11 16.09 Partly Cloudy FEW160 SCT250 16.1 -5 23% 76.78 1023.7
21 14:52 S 11 16.09 Partly Cloudy SCT250 15 -5.6 24% 76.86 1024.8
21 13:52 S 13 G 28 16.09 A Few Clouds FEW250 14.4 -5.6 14.4 2.8 25% 76.96 1026.2
21 12:52 S 15 16.09 Partly Cloudy SCT250 12.2 -6.1 28% 77.06 1027.4
21 11:52 Vrbl 7 16.09 A Few Clouds FEW250 11.1 -6.1 30% 77.17 1028.8
21 10:52 Vrbl 9 16.09 A Few Clouds FEW250 9.4 -6.7 32% 8 77.22 1029.6
21 09:52 SW 6 16.09 Fair CLR 7.8 -7.2 34% 77.27 1030.2
21 08:52 Calm 16.09 Fair CLR 5.6 -3.9 51% 77.32 1030.9
21 07:52 Calm 16.09 Fair CLR 2.8 -2.8 2.8 -2.8 67% 77.32 1030.7
21 06:52 Calm 16.09 Fair CLR -2.2 -4.4 85% 77.27 1030.2
21 05:52 Calm 16.09 Fair CLR -2.8 -5 85% 77.17 1029.0
21 04:52 Calm 16.09 Fair CLR -1.1 -4.4 79% 77.14 1028.4
21 03:52 NW 6 16.09 Fair CLR -1.1 -4.4 79% 77.09 1027.8
21 02:52 Calm 16.09 Fair CLR -1.7 -4.4 82% 77.06 1027.4
21 01:52 Calm 16.09 Fair CLR -0.6 -3.9 8.9 -0.6 79% 77.09 1027.8
21 00:52 Calm 16.09 Fair CLR 1.1 -5 64% 77.09 1027.7
20 23:52 E 6 16.09 Fair CLR 2.8 -5.6 54% 77.06 1027.5
20 22:52 N 11 16.09 Fair CLR 7.2 -8.3 33% 5 77.06 1027.5
20 21:52 N 11 16.09 Fair CLR 7.8 -8.3 31% 6 77.06 1027.5
20 20:52 N 15 G 31 16.09 Fair CLR 8.3 -8.3 30% 6 76.99 1026.4
20 19:52 N 24 G 39 16.09 Fair CLR 8.9 -8.9 13.3 8.9 28% 6 76.91 1025.4
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)