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 00:52 Calm 16.09 Fair CLR 11.1 5.6 69% 76.25 1016.3
09 23:52 S 7 16.09 Fair CLR 12.8 5.6 62% 76.23 1016.2
09 22:52 S 7 16.09 Fair CLR 13.3 5 57% 76.2 1015.8
09 21:52 S 7 16.09 Fair CLR 13.9 5 55% 76.17 1015.5
09 20:52 S 9 16.09 Fair CLR 15.6 3.9 46% 76.15 1015.1
09 19:52 S 6 16.09 Fair CLR 16.1 4.4 24.4 16.1 46% 76.12 1014.9
09 18:52 S 9 16.09 Fair CLR 21.7 4.4 32% 76.1 1014.6
09 17:52 SW 13 16.09 Fair CLR 23.9 5 29% 25 76.1 1014.4
09 16:52 SW 17 16.09 A Few Clouds FEW055 24.4 5.6 30% 25 76.1 1014.5
09 15:52 S 22 G 35 16.09 A Few Clouds FEW055 24.4 5 29% 25 76.15 1015.0
09 14:52 SW 17 16.09 A Few Clouds FEW055 23.9 6.1 32% 25 76.15 1015.1
09 13:52 S 19 16.09 A Few Clouds FEW055 23.3 6.7 23.3 3.3 34% 76.2 1015.9
09 12:52 Vrbl 7 16.09 A Few Clouds FEW055 21.7 3.9 31% 76.3 1017.3
09 11:52 S 9 16.09 A Few Clouds FEW050 20.6 3.3 32% 76.38 1018.0
09 10:52 Vrbl 7 16.09 Fair CLR 18.3 3.3 37% 76.4 1018.7
09 09:52 Calm 16.09 Fair CLR 14.4 5.6 56% 76.45 1019.1
09 08:52 Calm 16.09 Fair CLR 9.4 6.1 80% 76.4 1018.6
09 07:52 Calm 16.09 Fair CLR 3.9 2.2 7.8 2.8 89% 76.35 1017.9
09 06:52 Calm 16.09 Fair CLR 3.9 2.2 89% 76.28 1016.7
09 05:52 SE 6 16.09 Fair CLR 3.9 2.2 89% 76.23 1016.1
09 04:52 Calm 16.09 Fair CLR 3.9 2.2 89% 76.17 1015.3
09 03:52 S 6 16.09 Fair CLR 4.4 2.2 86% 76.17 1015.3
09 02:52 Calm 16.09 Fair CLR 6.1 2.8 80% 76.2 1015.7
09 01:52 Calm 16.09 Fair CLR 7.2 2.8 18.9 6.1 74% 76.2 1015.7
09 00:52 SW 7 16.09 Fair CLR 7.8 3.3 73% 7 76.17 1015.5
08 23:52 Calm 16.09 Fair CLR 8.3 3.3 71% 76.17 1015.5
08 22:52 SE 9 16.09 A Few Clouds FEW220 11.1 3.3 59% 76.15 1015.2
08 21:52 Calm 16.09 Partly Cloudy SCT220 15 3.3 46% 76.07 1013.9
08 20:52 NW 6 16.09 Partly Cloudy FEW050 SCT220 16.1 4.4 46% 76.02 1013.3
08 19:52 NW 7 16.09 Partly Cloudy FEW060 FEW090 SCT220 18.9 5 22.8 18.9 40% 75.97 1012.6
08 18:52 NW 15 16.09 Mostly Cloudy FEW060 FEW090 BKN220 21.1 6.7 39% 75.92 1011.9
08 17:52 NW 15 16.09 Mostly Cloudy FEW060 SCT090 BKN220 21.7 7.2 39% 75.87 1011.2
08 16:52 W 19 16.09 Mostly Cloudy FEW060 SCT090 BKN220 22.2 7.8 40% 75.84 1010.9
08 15:52 W 19 16.09 Overcast SCT065 BKN090 OVC160 22.2 10.6 48% 75.82 1010.5
08 14:52 W 15 16.09 Overcast SCT060 BKN080 OVC160 22.8 10.6 46% 75.79 1010.1
08 13:52 SW 17 16.09 Overcast SCT055 SCT065 OVC200 22.2 11.1 22.8 17.2 50% 75.77 1010.1
08 12:52 W 11 16.09 Overcast SCT042 BKN075 BKN120 OVC200 22.2 12.8 55% 75.82 1010.7
08 11:52 SW 6 16.09 Mostly Cloudy SCT038 SCT060 BKN200 21.1 15 68% 75.84 1010.9
08 10:52 SW 9 16.09 Mostly Cloudy FEW055 SCT090 BKN190 BKN250 20 15.6 76% 75.87 1011.3
08 09:52 Calm 16.09 Mostly Cloudy SCT055 BKN110 BKN190 BKN250 18.9 16.1 84% 75.84 1011.0
08 08:52 SE 7 16.09 Light Rain BKN055 BKN090 BKN250 17.2 15 87% 75.84 1010.9
08 07:52 SW 6 16.09 Mostly Cloudy FEW050 BKN090 BKN190 BKN250 17.2 15.6 18.9 16.7 90% 75.79 1010.1
08 06:52 SW 9 16.09 Mostly Cloudy SCT090 BKN110 BKN190 BKN250 17.8 15.6 87% 75.77 1009.8
08 05:52 SW 13 16.09 Overcast OVC080 18.3 15.6 84% 75.79 1010.2
08 04:52 SW 19 16.09 Overcast FEW100 OVC170 18.9 15.6 81% 75.72 1009.3
08 03:52 SW 15 16.09 Overcast BKN190 OVC250 18.3 15.6 84% 75.72 1009.3
08 01:52 S 19 16.09 Overcast SCT130 OVC190 17.8 15.6 87% 75.77 1010.1
08 00:52 S 9 16.09 Mostly Cloudy FEW090 BKN150 BKN210 16.7 15 19.4 14.4 90% 75.82 1010.7 0.03
07 23:52 SE 7 16.09 Mostly Cloudy FEW055 FEW070 BKN110 15 14.4 96% 75.9 1011.8 0.03
07 22:52 NW 13 16.09 Mostly Cloudy SCT050 BKN100 17.2 15 87% 75.95 1012.5
07 21:52 Calm 16.09 Partly Cloudy SCT050 17.8 14.4 81% 75.92 1012.1
07 20:52 S 13 16.09 Fair CLR 18.3 15 81% 75.84 1011.1
07 19:52 S 17 16.09 A Few Clouds FEW250 17.8 13.3 75% 75.87 1011.5
07 18:52 S 11 16.09 A Few Clouds FEW025 FEW250 17.8 13.9 20 11.1 78% 75.97 1012.7
07 17:52 S 22 G 33 16.09 Partly Cloudy FEW025 SCT250 19.4 14.4 73% 75.97 1012.9
07 16:52 S 22 G 43 16.09 Partly Cloudy FEW022 SCT250 20 13.9 68% 76.02 1013.5
07 15:52 S 17 16.09 Partly Cloudy FEW015 SCT250 17.2 11.1 68% 76.1 1014.4
07 14:52 SE 9 16.09 Overcast OVC013 13.9 10.6 81% 76.23 1016.2
07 13:52 S 11 16.09 Overcast OVC011 12.8 9.4 80% 76.33 1017.6
07 12:52 S 9 16.09 Overcast OVC008 11.1 8.9 11.1 5.6 86% 76.48 1019.4
07 11:52 SE 11 9.66 Fog/Mist SCT004 OVC006 9.4 7.8 90% 8 76.56 1020.6
07 10:52 S 11 3.22 Fog/Mist OVC004 8.3 7.2 93% 7 76.63 1021.8
07 09:52 SE 13 0.80 Fog/Mist OVC002 7.2 6.7 97% 5 76.68 1022.5
07 08:52 S 7 0.80 Fog/Mist OVC002 6.1 6.1 100% 5 76.78 1023.6
07 07:52 SE 9 0.80 Fog/Mist OVC002 5.6 5 96% 4 76.81 1024.2
07 06:52 SE 9 2.82 Fog/Mist OVC004 5.6 5 7.2 5 96% 4 76.81 1024.2
07 05:52 S 7 2.82 Fog/Mist OVC003 5.6 5 96% 4 76.84 1024.3
07 04:52 SE 15 2.41 Fog/Mist OVC004 5.6 5 96% 3 76.81 1024.3
07 03:52 SE 6 2.41 Fog/Mist OVC004 5.6 5.6 100% 76.89 1025.3
07 02:52 SE 9 3.22 Fog/Mist OVC003 6.1 5.6 97% 4 76.94 1025.7
07 01:52 SE 11 9.66 Fog/Mist OVC006 6.7 5.6 93% 5 76.99 1026.2
07 00:52 SE 9 16.09 Overcast OVC011 7.2 5.6 8.3 7.2 90% 6 77.01 1026.7
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)