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.
13 15:52 S 46 G 76 16.09 Mostly Cloudy and Windy FEW110 BKN250 12.2 -4.4 31% 75.64 1008.4
13 14:52 S 35 G 59 16.09 Mostly Cloudy and Breezy FEW120 BKN200 10.6 -5.6 32% 75.84 1011.5
13 13:52 S 33 G 65 16.09 Mostly Cloudy and Breezy BKN110 BKN250 10.6 -5.6 11.1 -1.7 32% 76.05 1014.2
13 12:52 S 35 G 57 16.09 Mostly Cloudy and Breezy BKN110 BKN250 8.3 -6.1 36% 4 76.17 1015.6
13 11:52 S 31 G 43 16.09 Overcast BKN110 OVC250 7.2 -6.1 39% 3 76.43 1019.0
13 10:52 S 24 G 41 16.09 Mostly Cloudy SCT110 BKN250 7.2 -5.6 40% 4 76.5 1020.1
13 09:52 S 20 16.09 Mostly Cloudy FEW120 BKN250 4.4 -4.4 53% 1 76.58 1021.1
13 07:52 S 9 16.09 Mostly Cloudy BKN240 -1.7 -5.6 -1.1 -3.3 75% -5 76.63 1021.8
13 06:52 S 6 16.09 Fair CLR -1.7 -6.7 69% 76.58 1021.3
13 05:52 S 6 16.09 Fair CLR -2.2 -6.1 75% 76.56 1020.9
13 04:52 S 6 16.09 Fair CLR -1.7 -5 78% 76.63 1021.9
13 03:52 S 7 16.09 Fair CLR -1.7 -6.1 72% -4 76.58 1021.2
13 02:52 Calm 16.09 Fair CLR -2.2 -5.6 78% 76.61 1021.5
13 01:52 S 6 16.09 Fair CLR -2.2 -6.1 5 -2.2 75% 76.58 1021.2
13 00:52 Calm 16.09 Fair CLR -2.2 -5.6 78% 76.53 1020.4
12 23:52 Calm 16.09 Fair CLR -1.7 -5 78% 76.53 1020.5
12 22:52 Vrbl 6 16.09 Fair CLR 0.6 -6.7 58% 76.53 1020.6
12 21:52 W 6 16.09 Fair CLR 2.8 -7.8 46% 76.56 1020.9
12 20:52 NW 13 16.09 A Few Clouds FEW085 4.4 -8.3 40% 2 76.5 1019.9
12 19:52 NW 15 16.09 A Few Clouds FEW085 5 -7.8 7.2 0.6 39% 2 76.38 1018.3
12 18:52 NW 26 G 48 16.09 Partly Cloudy SCT085 6.1 -7.8 37% 2 76.28 1016.9
12 17:52 NW 22 G 43 16.09 A Few Clouds FEW065 FEW120 7.2 -5.6 40% 4 76.12 1014.9
12 16:52 NW 31 G 52 16.09 Partly Cloudy FEW060 FEW120 SCT250 6.7 -3.9 47% 3 76.07 1014.1
12 15:52 S 6 16.09 Mostly Cloudy FEW050 SCT080 BKN120 2.8 1.1 89% 76.07 1014.2
12 14:52 SE 6 16.09 Mostly Cloudy FEW040 SCT075 BKN090 1.1 0.6 97% 76.07 1014.1
12 13:52 Calm 8.05 Fog/Mist FEW006 OVC025 0.6 0 8.3 0 96% 76.07 1014.3 0.08 1.09
12 12:52 NW 6 0.40 Snow Fog VV006 0 0 100% 76.1 1014.4 0.28
12 11:52 NW 17 G 33 2.41 Light Snow Fog/Mist BKN006 OVC010 1.1 0 92% -3 76.07 1014.0 0.18
12 10:52 N 30 G 46 4.83 Light Snow Fog/Mist BKN012 OVC021 2.8 1.1 89% -2 76.05 1013.8 0.23 0.56
12 09:52 NW 22 G 37 6.44 Rain Fog/Mist BKN040 OVC070 5 3.3 89% 1 75.95 1012.3 0.25
12 08:52 NW 28 G 50 12.87 Light Rain FEW026 BKN048 OVC060 6.1 3.3 82% 2 75.84 1010.9 0.08
12 07:52 NW 22 G 43 11.27 Light Rain SCT015 BKN022 OVC027 8.3 6.1 23.3 8.3 86% 5 75.72 1009.4 0.13 0.13
12 06:52 NW 30 G 54 16.09 Light Rain BKN025 OVC048 11.1 7.8 80% 75.54 1006.8
12 05:52 NW 28 G 50 16.09 Light Rain BKN060 OVC085 15.6 8.9 65% 75.41 1004.9
12 04:52 NW 28 G 57 16.09 Overcast OVC070 19.4 13.9 71% 75.26 1002.9
12 03:52 SW 17 16.09 Overcast OVC100 23.3 10.6 45% 75.13 1001.1
12 02:52 SW 13 16.09 Overcast OVC110 22.2 11.1 50% 75.18 1002.1
12 01:52 W 7 16.09 Mostly Cloudy BKN100 23.3 11.1 25 18.3 46% 75.26 1003.0
12 00:52 SW 22 G 37 16.09 Overcast OVC190 24.4 11.1 43% 26 75.26 1002.9
11 23:52 S 26 G 41 16.09 Partly Cloudy SCT210 25 12.2 45% 26 75.26 1002.9
11 22:52 S 24 G 41 16.09 Mostly Cloudy BKN210 25 13.3 48% 26 75.31 1003.6
11 21:52 S 13 16.09 Partly Cloudy FEW100 SCT200 20 16.1 78% 75.34 1004.2
11 20:52 E 7 16.09 A Few Clouds FEW100 18.9 17.2 90% 75.39 1004.9
11 19:52 NE 7 16.09 Mostly Cloudy FEW042CB SCT100 BKN250 20.6 17.8 30 20.6 84% 75.41 1005.3 0.05 0.05
11 18:52 SW 15 G 35 16.09 Thunderstorm Light Rain FEW026 SCT042CB BKN090 BKN250 27.2 15 47% 27 75.44 1005.5
11 17:52 S 28 G 48 16.09 Mostly Cloudy FEW050CB SCT100 BKN250 29.4 14.4 40% 29 75.41 1005.2
11 16:52 S 30 G 48 16.09 Mostly Cloudy FEW050 SCT110 BKN250 29.4 15 42% 29 75.46 1005.7
11 15:52 S 24 G 39 16.09 Mostly Cloudy SCT050 BKN120 BKN250 29.4 15 42% 29 75.54 1006.6
11 14:52 S 13 G 33 16.09 Mostly Cloudy FEW050 BKN120 BKN250 26.7 15 49% 27 75.64 1008.0
11 13:52 SW 17 G 30 16.09 Mostly Cloudy SCT110 BKN150 BKN220 26.1 14.4 26.1 15.6 49% 27 75.77 1009.8
11 12:52 S 13 16.09 Overcast SCT085 BKN120 OVC180 23.3 14.4 57% 75.84 1011.0
11 11:52 S 15 16.09 Overcast SCT110 OVC170 22.8 13.9 57% 75.92 1011.8
11 10:52 S 13 16.09 Overcast BKN100 OVC170 20.6 13.3 63% 75.97 1012.5
11 09:52 S 17 16.09 Overcast BKN150 OVC220 19.4 12.8 66% 76 1013.0
11 08:52 S 11 16.09 Overcast BKN150 OVC250 18.9 12.2 65% 76 1012.9
11 07:52 Calm 16.09 Partly Cloudy FEW120 SCT250 16.1 10.6 21.1 15.6 70% 75.97 1012.6
11 06:52 S 7 16.09 A Few Clouds FEW120 FEW250 16.1 10.6 70% 76 1012.8
11 05:52 S 6 16.09 Partly Cloudy FEW120 SCT250 16.7 10.6 67% 76 1012.7
11 04:52 S 7 16.09 Fair CLR 16.7 10 65% 76 1012.9
11 03:52 S 11 16.09 A Few Clouds FEW120 18.3 10 59% 76.02 1013.2
11 02:52 S 13 16.09 A Few Clouds FEW120 20 10 53% 76.05 1013.5
11 01:52 S 9 16.09 Mostly Cloudy BKN120 21.1 10 24.4 20 49% 76.07 1013.7
11 00:52 S 11 16.09 Partly Cloudy SCT090 SCT120 20 9.4 51% 76.1 1014.3
10 23:52 S 9 16.09 A Few Clouds FEW100 20.6 8.9 47% 76.15 1014.8
10 22:52 S 9 16.09 A Few Clouds FEW100 22.2 8.9 43% 76.15 1014.9
10 21:52 S 11 16.09 A Few Clouds FEW100 22.8 8.3 40% 76.12 1014.7
10 20:52 S 9 16.09 A Few Clouds FEW070 23.3 8.3 38% 76.12 1014.8
10 19:52 S 6 16.09 A Few Clouds FEW070 24.4 8.3 29.4 24.4 36% 25 76.1 1014.5
10 18:52 S 15 16.09 A Few Clouds FEW070 26.1 8.3 32% 26 76.07 1014.2
10 17:52 S 13 16.09 A Few Clouds FEW050 FEW250 28.9 7.8 27% 28 76.07 1013.8
10 16:52 SW 24 G 31 16.09 A Few Clouds FEW050 FEW250 28.9 7.8 27% 28 76.07 1014.1
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)