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.
30 10:52 S 20 G 35 16.09 Mostly Cloudy FEW070 BKN090 11.1 9.4 89% 76.96 1026.2 0.05 0.08
30 08:52 S 19 11.27 Light Rain BKN075 OVC085 11.1 7.2 77% 76.96 1026.0 0.03
30 07:52 S 17 G 28 16.09 Light Rain BKN070 OVC085 11.1 5.6 12.8 10.6 69% 76.96 1026.0
30 06:52 S 22 G 37 16.09 Overcast OVC095 11.7 3.3 57% 76.89 1025.1
30 05:52 S 19 G 35 16.09 Overcast BKN170 OVC240 11.7 2.2 52% 76.86 1024.7
30 04:52 S 20 G 39 16.09 Mostly Cloudy BKN110 11.7 1.7 51% 76.86 1024.5
30 03:52 S 19 G 35 16.09 Overcast OVC120 11.7 0 45% 76.89 1025.0
30 02:52 S 20 16.09 Overcast BKN150 OVC180 12.2 -1.7 38% 76.91 1025.2
30 01:52 S 15 G 31 16.09 Overcast SCT120 OVC150 12.8 -5 14.4 12.8 29% 76.96 1025.8
30 00:52 S 24 16.09 Overcast BKN130 OVC150 12.8 -7.2 24% 76.96 1025.9
29 23:52 S 24 G 39 16.09 Overcast FEW120 OVC140 13.3 -7.2 24% 76.99 1026.5
29 22:52 S 22 G 35 16.09 Mostly Cloudy BKN160 BKN250 13.3 -5.6 27% 77.04 1027.0
29 21:52 S 15 16.09 Mostly Cloudy BKN160 BKN250 13.3 -3.9 30% 77.06 1027.3
29 20:52 S 19 G 33 16.09 Mostly Cloudy FEW150 BKN220 BKN250 13.9 -3.9 29% 77.04 1027.1
29 19:52 S 15 16.09 Mostly Cloudy FEW120 BKN200 BKN250 14.4 -3.9 16.7 13.9 28% 77.06 1027.4
29 18:52 S 19 G 31 16.09 Mostly Cloudy BKN200 BKN250 15 -3.9 27% 77.09 1027.7
29 17:52 S 28 G 39 16.09 Mostly Cloudy FEW100 FEW200 BKN250 15.6 -3.3 27% 77.11 1028.1
29 16:52 S 30 G 43 16.09 Mostly Cloudy FEW200 BKN250 15.6 -3.3 27% 77.11 1028.3
29 15:52 S 26 G 43 16.09 Mostly Cloudy FEW200 BKN250 16.1 -2.8 27% 77.19 1029.2
29 14:52 S 33 G 46 16.09 Partly Cloudy and Breezy FEW200 SCT250 15.6 -3.3 27% 77.27 1030.2
29 13:52 S 33 G 50 16.09 A Few Clouds and Breezy FEW250 15 -3.3 15 0 28% 77.37 1031.5
29 12:52 S 31 G 52 16.09 A Few Clouds FEW250 13.3 -4.4 29% 77.47 1032.9
29 11:52 S 24 G 48 16.09 Mostly Cloudy SCT160 BKN250 12.8 -4.4 30% 77.55 1034.1
29 10:52 S 26 G 39 16.09 Mostly Cloudy FEW170 BKN250 10.6 -4.4 35% 77.6 1034.8
29 09:52 S 30 G 48 16.09 Mostly Cloudy BKN160 BKN250 8.3 -5.6 37% 5 77.65 1035.2
29 08:52 S 15 16.09 Mostly Cloudy SCT160 BKN250 3.3 -4.4 57% 0 77.65 1035.4
29 07:52 Calm 16.09 Partly Cloudy FEW180 SCT250 0 -5 0 -3.3 69% 77.62 1035.1
29 06:52 Calm 16.09 Partly Cloudy SCT250 -2.2 -6.1 75% 77.6 1034.8
29 05:52 SE 7 16.09 Partly Cloudy SCT250 -1.7 -7.2 66% -4 77.6 1034.6
29 04:52 Calm 16.09 A Few Clouds FEW250 -1.7 -6.1 72% 77.57 1034.5
29 03:52 S 6 16.09 A Few Clouds FEW250 -1.1 -6.7 66% 77.6 1034.7
29 02:52 Calm 16.09 A Few Clouds FEW250 -2.8 -6.1 78% 77.62 1035.0
29 01:52 Calm 16.09 Fair CLR -1.7 -6.1 7.2 -2.2 72% 77.6 1034.9
29 00:52 Calm 16.09 Fair CLR -1.1 -5.6 72% 77.6 1034.8
28 23:52 Calm 16.09 Fair CLR 0 -6.1 64% 77.57 1034.4
28 22:52 SE 9 16.09 Fair CLR 1.7 -7.2 52% -1 77.57 1034.3
28 21:52 Calm 16.09 Fair CLR 2.2 -8.3 46% 77.55 1034.1
28 20:52 NW 9 16.09 Fair CLR 6.7 -10 30% 5 77.5 1033.5
28 19:52 NW 11 16.09 Fair CLR 7.2 -9.4 10.6 7.2 30% 5 77.44 1032.7
28 18:52 W 17 16.09 A Few Clouds FEW250 8.9 -9.4 27% 7 77.39 1032.0
28 17:52 NW 24 G 33 16.09 A Few Clouds FEW250 10 -11.1 22% 7 77.37 1031.7
28 16:52 N 17 G 35 16.09 A Few Clouds FEW250 10 -10 24% 8 77.37 1031.7
28 15:52 N 17 G 30 16.09 A Few Clouds FEW070 9.4 -9.4 26% 7 77.39 1031.8
28 14:52 NW 15 G 61 16.09 A Few Clouds FEW060 8.3 -8.9 29% 6 77.44 1032.6
28 13:52 NW 15 G 39 16.09 Partly Cloudy SCT060 7.2 -8.9 7.2 1.1 31% 5 77.5 1033.5
28 12:52 NW 24 G 35 16.09 Partly Cloudy SCT060 6.7 -8.9 32% 3 77.52 1033.5
28 11:52 NW 20 G 56 16.09 Mostly Cloudy BKN060 6.1 -8.3 35% 3 77.57 1034.3
28 10:52 NW 20 G 48 16.09 Partly Cloudy SCT055 3.9 -8.9 39% 0 77.57 1034.2
28 09:52 N 24 G 39 16.09 Fair CLR 3.3 -9.4 39% -1 77.52 1033.9
28 08:52 NW 20 G 31 16.09 A Few Clouds FEW050 FEW250 1.7 -8.9 46% -3 77.5 1033.3
28 07:52 NW 24 G 35 16.09 A Few Clouds FEW050 1.1 -9.4 5 0.6 46% -4 77.39 1032.0
28 06:52 N 11 16.09 A Few Clouds FEW050 1.1 -10 44% -2 77.29 1030.7
28 05:52 NW 30 G 52 16.09 A Few Clouds FEW050 1.7 -8.9 46% -4 77.14 1028.7
28 04:52 NW 28 G 50 16.09 A Few Clouds FEW050 3.3 -5.6 52% -2 77.01 1026.8
28 03:52 NW 15 16.09 Mostly Cloudy SCT050 BKN065 5 -2.8 57% 2 76.91 1025.6
28 02:52 N 6 16.09 Mostly Cloudy BKN060 3.9 -1.1 70% 76.86 1024.8
28 01:52 Calm 16.09 Partly Cloudy SCT055 0.6 0 6.1 0 96% 76.78 1023.8
28 00:52 Calm 16.09 A Few Clouds FEW055 3.9 -1.1 70% 76.78 1023.8
27 23:52 N 7 16.09 Mostly Cloudy SCT039 BKN055 5.6 0.6 71% 4 76.78 1023.8
27 22:52 N 13 16.09 Overcast OVC055 6.1 -1.1 60% 4 76.73 1023.1
27 21:52 Calm 16.09 Mostly Cloudy BKN047 4.4 2.2 86% 76.71 1022.6
27 20:52 NE 7 16.09 Mostly Cloudy BKN045 5 1.7 79% 4 76.61 1021.5
27 19:52 NE 6 16.09 Overcast SCT027 BKN039 OVC090 5 1.1 10.6 5 76% 76.58 1021.0 0.15
27 18:52 NE 15 16.09 Light Rain BKN027 OVC070 5.6 2.2 79% 3 76.56 1020.5 0.1
27 17:52 NE 13 9.66 Light Rain BKN044 OVC060 6.7 3.3 79% 4 76.43 1018.9 0.05
27 16:52 N 11 16.09 Overcast FEW025 OVC050 8.9 2.8 66% 7 76.38 1018.2
27 15:52 NE 20 G 43 16.09 Light Rain BKN025 OVC047 9.4 3.3 66% 7 76.35 1017.8
27 14:52 N 26 16.09 Overcast SCT026 OVC047 9.4 4.4 71% 6 76.33 1017.6
27 13:52 N 22 G 39 16.09 Overcast BKN022 BKN029 OVC080 10.6 6.1 16.1 10.6 74% 76.35 1017.8 0.28
27 12:52 NE 22 16.09 Overcast BKN016 OVC020 11.7 8.9 83% 76.3 1017.0
27 11:52 N 20 G 35 16.09 Overcast FEW022 BKN029 BKN060 OVC140 13.3 9.4 77% 76.23 1016.1
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)