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.
09 06:52 NW 7 16.09 Fair CLR 8.9 3.3 68% 8 77.19 1029.0
09 05:52 N 9 16.09 Fair CLR 9.4 3.3 66% 8 77.11 1028.2
09 04:52 N 11 16.09 Fair CLR 11.1 2.8 57% 77.09 1027.5
09 03:52 N 11 16.09 Fair CLR 11.7 3.3 57% 77.06 1027.2
09 02:52 N 13 16.09 Fair CLR 12.2 3.9 57% 77.06 1027.2
09 01:52 N 15 16.09 Fair CLR 12.8 3.9 17.2 12.8 55% 77.04 1027.0
09 00:52 NW 11 16.09 Fair CLR 13.3 3.9 53% 77.01 1026.6
08 23:52 NW 11 16.09 Fair CLR 13.9 5 55% 76.96 1026.1
08 22:52 NW 11 16.09 Fair CLR 14.4 5 53% 76.94 1025.6
08 21:52 NW 9 16.09 Fair CLR 13.9 5 55% 76.86 1024.4
08 20:52 N 15 16.09 Fair CLR 16.7 4.4 44% 76.76 1023.2
08 19:52 NW 15 16.09 A Few Clouds FEW065 17.2 5 22.8 17.2 45% 76.76 1023.1
08 18:52 N 22 G 43 16.09 A Few Clouds FEW060 18.9 4.4 39% 76.68 1022.2
08 17:52 N 22 G 39 16.09 Partly Cloudy SCT050 SCT080 20 4.4 36% 76.61 1021.3
08 16:52 NW 28 G 44 16.09 Partly Cloudy SCT050 21.7 6.7 38% 76.56 1020.5
08 15:52 N 22 G 43 16.09 Mostly Cloudy BKN045 22.8 8.9 41% 76.53 1020.2
08 14:52 N 24 G 37 16.09 Mostly Cloudy BKN043 20 10.6 55% 76.53 1019.9
08 13:52 N 26 16.09 Mostly Cloudy BKN027 BKN032 20.6 12.2 21.7 17.8 59% 76.5 1019.7
08 12:52 NW 24 G 44 16.09 Overcast FEW015 BKN025 OVC032 18.9 12.8 68% 76.48 1019.5
08 11:52 N 28 G 41 16.09 Mostly Cloudy BKN017 BKN026 18.9 15 78% 76.45 1018.9
08 10:52 NW 31 G 44 16.09 Mostly Cloudy SCT016 BKN024 BKN050 20 16.1 78% 76.33 1017.3
08 09:52 NW 11 16.09 Mostly Cloudy FEW017 BKN049 BKN075 BKN130 21.1 18.9 87% 76.25 1016.3
08 08:52 W 11 16.09 Mostly Cloudy FEW009 SCT047 BKN060 BKN140 20.6 18.9 90% 76.2 1015.4
08 07:52 W 6 16.09 Mostly Cloudy FEW020 SCT048 BKN090 BKN150 19.4 18.9 20.6 19.4 97% 76.12 1014.4 0.08 0.36
08 06:52 NW 11 4.83 Rain Fog/Mist BKN006 OVC010 20 19.4 96% 76.1 1014.2 0.05
08 05:52 S 13 16.09 Light Rain BKN008 OVC010 20 19.4 96% 76.05 1013.6 0.05
08 04:52 SW 9 11.27 Overcast FEW020 BKN025 OVC035 20 18.9 93% 76.07 1013.7 0.03 0.18
08 03:52 S 9 G 26 4.83 Rain Fog/Mist FEW018 BKN025 OVC034 19.4 18.9 97% 76.07 1014.0 0.15
08 02:52 S 11 16.09 Overcast SCT075 OVC095 20.6 18.3 87% 76.12 1014.6
08 01:52 S 11 16.09 Overcast OVC100 20.6 18.3 23.9 20.6 87% 76.17 1015.3 0.05
08 00:52 S 11 16.09 Overcast OVC095 20.6 17.8 84% 76.2 1015.6
07 23:52 S 13 16.09 Overcast FEW080 OVC110 21.1 18.3 84% 76.25 1016.2
07 22:52 S 15 16.09 Light Rain OVC130 21.1 18.3 84% 76.28 1016.7 0.03 0.05
07 21:52 S 9 16.09 Light Rain FEW046 OVC100 20.6 18.3 87% 76.3 1017.2 0.03
07 20:52 S 15 16.09 Light Rain FEW045 BKN080 OVC140 23.3 16.7 67% 76.3 1017.0
07 19:52 S 19 16.09 Overcast SCT045 BKN080 OVC140 23.9 17.2 28.9 23.9 66% 25 76.3 1017.0
07 18:52 S 22 G 39 16.09 Overcast BKN046 OVC150 24.4 17.2 64% 25 76.28 1016.6
07 17:52 S 26 G 41 16.09 Mostly Cloudy SCT042 BKN120 BKN200 25 17.2 62% 26 76.28 1016.6
07 16:52 S 24 G 41 16.09 Mostly Cloudy SCT045 BKN150 26.1 17.2 58% 27 76.28 1016.5
07 15:52 S 20 G 37 16.09 Mostly Cloudy SCT047 BKN150 27.2 17.2 54% 28 76.3 1016.9
07 14:52 S 24 G 37 16.09 Overcast BKN042 OVC150 27.8 17.2 53% 28 76.33 1017.5
07 13:52 S 22 G 43 16.09 Mostly Cloudy BKN038 BKN250 27.2 17.2 28.9 16.7 54% 28 76.4 1018.4
07 12:52 SW 24 G 46 16.09 Mostly Cloudy SCT036 SCT080 BKN250 28.3 17.2 51% 29 76.45 1019.1
07 11:52 S 24 G 37 16.09 Mostly Cloudy SCT100 BKN250 26.1 16.7 56% 27 76.53 1020.1
07 10:52 S 19 G 31 16.09 Mostly Cloudy SCT100 BKN250 21.7 16.7 73% 76.58 1020.9
07 09:52 S 15 16.09 Mostly Cloudy SCT090 BKN250 20.6 15.6 73% 76.63 1021.5
07 08:52 S 13 16.09 Mostly Cloudy SCT090 BKN250 18.3 16.1 87% 76.63 1021.4
07 07:52 S 15 16.09 A Few Clouds FEW090 FEW250 16.7 15 17.8 16.1 90% 76.66 1021.7
07 06:52 S 13 16.09 A Few Clouds FEW090 16.1 15 93% 76.63 1021.4
07 05:52 S 9 16.09 A Few Clouds FEW080 16.7 15 90% 76.63 1021.4
07 04:52 S 15 16.09 Fair CLR 17.2 15 87% 76.66 1021.5
07 03:52 S 9 16.09 Fair CLR 16.7 14.4 86% 76.66 1021.8
07 02:52 S 7 16.09 Fair CLR 17.2 14.4 84% 76.71 1022.3
07 01:52 S 6 16.09 Fair CLR 17.8 14.4 23.3 17.8 81% 76.73 1022.6
07 00:52 S 7 16.09 Fair CLR 18.9 14.4 75% 76.76 1023.1
06 23:52 S 9 16.09 Fair CLR 19.4 15 76% 76.76 1023.2
06 22:52 S 7 16.09 A Few Clouds FEW250 20 15 73% 76.78 1023.5
06 21:52 S 9 16.09 A Few Clouds FEW250 21.1 15.6 71% 76.78 1023.4
06 20:52 S 11 16.09 A Few Clouds FEW050 22.2 15.6 66% 76.76 1023.3
06 19:52 S 13 16.09 A Few Clouds FEW050 FEW250 23.3 15.6 28.9 22.8 62% 76.73 1022.8
06 18:52 S 11 16.09 A Few Clouds FEW050 FEW250 24.4 15.6 58% 26 76.76 1023.0
06 17:52 S 17 16.09 A Few Clouds FEW050 FEW250 26.1 16.1 54% 27 76.73 1022.8
06 16:52 SE 15 16.09 A Few Clouds FEW050 27.2 16.1 51% 28 76.73 1022.6
06 15:52 S 19 16.09 Partly Cloudy SCT050 27.8 15.6 47% 28 76.73 1022.8
06 14:52 S 9 G 28 16.09 Mostly Cloudy BKN048 28.3 16.1 48% 29 76.78 1023.3
06 13:52 Vrbl 11 16.09 Mostly Cloudy BKN045 27.2 15.6 27.8 12.8 49% 28 76.84 1024.2
06 12:52 S 17 G 30 16.09 Partly Cloudy SCT035 27.2 15.6 49% 28 76.91 1025.3
06 11:52 S 9 16.09 A Few Clouds FEW035 25 16.1 58% 26 76.96 1025.8
06 10:52 Vrbl 9 16.09 Fair CLR 23.3 16.1 64% 76.96 1026.0
06 09:52 S 11 16.09 Fair CLR 20 16.1 78% 76.99 1026.2
06 08:52 S 7 16.09 Fair CLR 17.8 15.6 87% 76.99 1026.1
06 07:52 Calm 8.05 Shallow Fog CLR 12.8 12.8 16.1 11.7 100% 76.96 1025.9
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)