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.
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
09 10:52 Vrbl 9 16.09 Mostly Cloudy FEW050 FEW110 SCT150 BKN250 18.3 7.8 51% 75.84 1010.8
09 09:52 S 15 16.09 Overcast FEW043 BKN075 BKN090 OVC150 15.6 6.7 56% 75.84 1011.2
09 08:52 SW 9 16.09 Overcast FEW060 BKN085 BKN110 OVC170 15 6.1 56% 75.87 1011.4
09 07:52 S 19 16.09 Overcast SCT090 BKN110 OVC180 14.4 5 15 13.3 53% 75.84 1011.0
09 06:52 S 19 16.09 Overcast BKN110 OVC180 14.4 4.4 51% 75.82 1010.6
09 05:52 S 15 16.09 Mostly Cloudy BKN110 BKN180 13.9 4.4 53% 75.82 1010.5
09 04:52 S 17 16.09 Overcast OVC110 13.9 4.4 53% 75.84 1010.9
09 03:52 S 15 16.09 Overcast OVC120 14.4 3.9 50% 75.87 1011.3
09 02:52 S 17 16.09 Mostly Cloudy BKN120 15 3.3 46% 75.87 1011.2
09 01:52 S 15 16.09 Mostly Cloudy BKN120 15 3.3 19.4 15 46% 75.9 1011.6
09 00:52 S 19 G 35 16.09 Mostly Cloudy BKN140 15.6 3.3 44% 75.9 1011.5
08 23:52 S 17 16.09 A Few Clouds FEW120 15.6 3.3 44% 75.9 1011.7
08 22:52 S 11 16.09 A Few Clouds FEW120 15.6 3.3 44% 75.92 1012.1
08 21:52 S 9 16.09 A Few Clouds FEW120 16.7 3.3 41% 75.92 1012.0
08 20:52 S 11 16.09 Partly Cloudy SCT110 17.8 3.3 38% 75.9 1011.8
08 19:52 S 15 16.09 Mostly Cloudy BKN100 BKN130 19.4 3.3 22.8 19.4 35% 75.87 1011.3
08 18:52 SW 11 16.09 Mostly Cloudy FEW090 BKN110 BKN130 20.6 2.2 30% 75.84 1011.0
08 17:52 SW 11 16.09 Mostly Cloudy BKN100 BKN120 21.1 0.6 26% 75.84 1011.1
08 16:52 W 9 16.09 Partly Cloudy FEW090 SCT100 21.1 0 25% 75.84 1011.1
08 15:52 W 9 G 30 16.09 Partly Cloudy FEW090 SCT110 21.7 0 24% 75.9 1011.8
08 14:52 W 24 G 50 16.09 Partly Cloudy SCT090 SCT120 21.7 0 24% 75.97 1012.6
08 13:52 W 17 G 35 16.09 Partly Cloudy FEW080 SCT250 20 0 21.1 11.7 26% 76.02 1013.2
08 12:52 W 17 G 31 16.09 Partly Cloudy SCT050 20 1.1 28% 76.07 1013.9
08 11:52 NW 28 G 39 16.09 A Few Clouds FEW050 18.9 1.1 30% 76.12 1014.7
08 10:52 W 19 G 33 16.09 A Few Clouds FEW100 17.2 0.6 33% 76.15 1015.3
08 09:52 SW 15 16.09 A Few Clouds FEW100 16.1 -0.6 32% 76.17 1015.5
08 08:52 SW 9 16.09 A Few Clouds FEW090 FEW250 14.4 1.7 42% 76.23 1016.0
08 07:52 Calm 16.09 A Few Clouds FEW060 11.7 2.8 11.7 2.8 55% 76.2 1015.8
08 06:52 Calm 16.09 Fair CLR 5 1.7 79% 76.15 1015.1
08 05:52 Calm 16.09 Fair CLR 5 1.7 79% 76.1 1014.6
08 04:52 Calm 16.09 Fair CLR 3.9 1.1 82% 76.07 1014.3
08 03:52 NW 7 16.09 Fair CLR 9.4 1.1 56% 9 76.05 1013.8
08 02:52 NW 15 16.09 Fair CLR 10.6 1.7 54% 76 1012.9
08 01:52 NW 20 16.09 Fair CLR 11.1 3.3 13.9 7.2 59% 75.95 1012.5
08 00:52 SE 6 16.09 Fair CLR 7.2 6.1 93% 75.92 1012.3
07 23:52 Calm 16.09 Fair CLR 9.4 7.2 86% 75.87 1011.6
07 22:52 S 11 16.09 Fair CLR 10.6 7.2 80% 75.84 1011.2
07 21:52 S 13 16.09 A Few Clouds FEW090 11.7 7.2 74% 75.84 1011.0
07 20:52 S 15 16.09 Partly Cloudy FEW060 SCT090 12.2 6.7 69% 75.79 1010.2
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)