Weather observations for the past three days for
Washington/Dulles International Airport, DC
Metric (Imperial)
Date Time (est) 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.
29 12:52 W 19 G 39 16.09 A Few Clouds FEW060 -6.1 -17.2 -5.6 -10.6 41% -12 76.76 1023.9
29 11:52 W 19 G 33 16.09 A Few Clouds FEW060 -6.7 -18.3 40% -13 76.81 1024.7
29 10:52 W 20 G 30 16.09 A Few Clouds FEW060 -7.2 -18.9 39% -14 76.86 1025.2
29 09:52 NW 11 16.09 A Few Clouds FEW060 -8.3 -19.4 41% -13 76.86 1025.2
29 08:52 NW 6 16.09 Mostly Cloudy FEW050 BKN120 -9.4 -20 42% 76.86 1025.1
29 07:52 NW 17 16.09 A Few Clouds FEW050 -10.6 -20.6 44% -17 76.78 1024.2
29 06:52 NW 28 G 37 16.09 Fair CLR -10.6 -20.6 -8.3 -10.6 44% -19 76.73 1023.6
29 05:52 N 19 16.09 Fair CLR -10 -20 44% -17 76.71 1023.0
29 04:52 NW 19 G 35 16.09 Fair CLR -10 -19.4 47% -17 76.66 1022.4
29 03:52 NW 19 16.09 Fair CLR -9.4 -18.9 46% -16 76.63 1021.9
29 02:52 NW 20 16.09 Fair CLR -8.9 -17.8 49% -16 76.61 1021.8
29 01:52 NW 17 16.09 A Few Clouds FEW050 -8.3 -17.2 49% -15 76.56 1021.0
29 00:52 NW 15 16.09 Fair CLR -8.3 -16.7 -5.6 -8.9 51% -14 76.5 1020.2
28 23:52 NW 11 16.09 Fair CLR -8.3 -16.7 51% -13 76.5 1020.4
28 22:52 NW 15 16.09 A Few Clouds FEW060 -7.8 -16.7 49% -13 76.5 1020.5
28 21:52 NW 22 16.09 A Few Clouds FEW060 -7.2 -16.7 47% -14 76.5 1020.3
28 20:52 NW 17 16.09 A Few Clouds FEW060 -6.7 -16.7 45% -13 76.45 1019.6
28 19:52 NW 15 16.09 A Few Clouds FEW055 -6.7 -14.4 55% -12 76.43 1019.5
28 18:52 NW 7 16.09 A Few Clouds FEW055 -5.6 -15 -4.4 -6.1 48% -9 76.43 1019.4
28 17:52 NW 7 16.09 Mostly Cloudy BKN060 -5.6 -14.4 50% -9 76.38 1018.7
28 16:52 SW 6 16.09 Mostly Cloudy BKN250 -5 -14.4 48% 76.33 1018.1
28 15:52 Vrbl 6 16.09 Partly Cloudy FEW150 SCT250 -4.4 -15 44% 76.35 1018.4
28 14:52 SW 13 16.09 Mostly Cloudy SCT150 BKN250 -5 -15.6 44% -10 76.4 1019.0
28 13:52 Calm 16.09 Mostly Cloudy BKN250 -5 -16.1 42% 76.45 1019.7
28 12:52 Vrbl 7 16.09 Mostly Cloudy BKN250 -5.6 -16.1 -5.6 -10 44% -9 76.56 1020.9
28 11:52 Calm 16.09 A Few Clouds FEW250 -6.1 -16.7 43% 76.66 1022.5
28 10:52 N 9 16.09 A Few Clouds FEW250 -7.2 -17.2 45% -11 76.78 1023.9
28 09:52 NW 15 16.09 A Few Clouds FEW250 -8.3 -17.8 47% -14 76.84 1024.7
28 08:52 N 7 16.09 A Few Clouds FEW250 -8.9 -18.3 47% -12 76.86 1025.2
28 07:52 N 11 16.09 A Few Clouds FEW200 -9.4 -18.9 46% -14 76.86 1025.0
28 06:52 N 15 16.09 A Few Clouds FEW050 -9.4 -18.3 -6.1 -9.4 49% -15 76.84 1024.6
28 05:52 N 15 16.09 A Few Clouds FEW050 -9.4 -17.8 51% -15 76.81 1024.6
28 04:52 N 20 16.09 Fair CLR -8.3 -17.8 47% -15 76.78 1024.1
28 03:52 N 15 16.09 Mostly Cloudy BKN050 -8.3 -16.7 51% -14 76.78 1024.2
28 02:52 N 19 16.09 A Few Clouds FEW055 -7.8 -17.2 47% -14 76.76 1023.7
28 01:52 NW 30 G 46 16.09 Partly Cloudy SCT055 -6.7 -17.2 43% -15 76.68 1022.8
28 00:52 NW 15 16.09 Partly Cloudy SCT060 -6.1 -15.6 -2.8 -6.1 47% -11 76.66 1022.4
27 23:52 NW 17 G 33 16.09 Mostly Cloudy BKN055 -5.6 -14.4 50% -11 76.63 1022.1
27 22:52 NW 13 16.09 Overcast SCT050 OVC065 -5.6 -12.8 57% -10 76.61 1021.6
27 21:52 NW 17 16.09 Overcast OVC060 -4.4 -13.9 48% -10 76.53 1020.7
27 20:52 NW 17 16.09 Mostly Cloudy BKN060 -4.4 -14.4 46% -10 76.5 1020.5
27 19:52 NW 24 G 41 16.09 Fair CLR -3.9 -14.4 44% -10 76.4 1019.2
27 18:52 NW 17 16.09 A Few Clouds FEW065 -2.8 -14.4 -1.7 -5 41% -8 76.33 1017.9
27 17:52 SW 7 16.09 A Few Clouds FEW065 -2.2 -16.1 34% -5 76.2 1016.4
27 16:52 SW 17 16.09 Mostly Cloudy BKN070 -1.7 -15.6 34% -6 76.15 1015.8
27 15:52 S 15 G 33 16.09 Overcast BKN080 OVC120 -2.2 -16.1 34% -7 76.15 1015.7
27 14:52 S 19 G 39 16.09 A Few Clouds FEW200 -2.8 -17.8 31% -8 76.17 1016.0
27 13:52 SW 20 16.09 Mostly Cloudy BKN220 -3.9 -18.3 32% -10 76.25 1016.9
27 12:52 S 24 16.09 Mostly Cloudy SCT130 BKN220 -5 -18.9 -5 -16.1 33% -12 76.33 1018.0
27 11:52 SW 20 16.09 Mostly Cloudy BKN200 -6.1 -18.9 36% -12 76.5 1020.2
27 10:52 S 15 16.09 Partly Cloudy SCT200 -7.8 -18.3 43% -13 76.58 1021.5
27 09:52 SW 13 16.09 Fair CLR -8.9 -18.3 47% -14 76.66 1022.4
27 08:52 S 7 16.09 Fair CLR -11.1 -18.3 56% -15 76.71 1023.2
27 07:52 SE 7 16.09 Fair CLR -15.6 -18.9 76% -20 76.76 1023.9
27 06:52 Calm 16.09 Fair CLR -14.4 -18.9 -8.3 -15.6 69% 76.76 1023.8
27 05:52 Calm 16.09 Fair CLR -14.4 -18.9 69% 76.78 1024.1
27 04:52 S 6 16.09 Fair CLR -13.3 -18.9 63% 76.78 1024.1
27 03:52 Calm 16.09 Fair CLR -11.1 -17.8 58% 76.76 1023.9
27 02:52 W 22 16.09 Fair CLR -9.4 -17.8 51% -17 76.73 1023.2
27 01:52 W 17 16.09 Fair CLR -9.4 -17.2 53% -16 76.73 1023.3
27 00:52 NW 15 16.09 Fair CLR -8.3 -16.7 -6.1 -8.3 51% -14 76.71 1023.1
26 23:52 NW 28 G 44 16.09 A Few Clouds FEW050 -7.8 -16.1 52% -16 76.68 1022.8
26 22:52 NW 24 G 44 16.09 A Few Clouds FEW055 -7.8 -16.7 49% -15 76.66 1022.2
26 21:52 W 31 G 48 16.09 A Few Clouds FEW055 -7.8 -16.1 52% -16 76.58 1021.2
26 20:52 NW 33 G 48 16.09 A Few Clouds and Breezy FEW045 -7.2 -16.1 49% -16 76.53 1020.7
26 19:52 NW 30 G 46 16.09 A Few Clouds FEW045 -6.1 -15 50% -14 76.48 1019.9
26 18:52 NW 28 G 44 16.09 A Few Clouds FEW048 -6.1 -15.6 -3.3 -6.1 47% -14 76.4 1019.1
26 17:52 NW 28 G 52 16.09 Partly Cloudy SCT050 -5.6 -15.6 46% -13 76.33 1017.9
26 16:52 NW 43 G 61 16.09 Partly Cloudy and Windy SCT050 -5 -15.6 44% -14 76.25 1016.8
26 15:52 W 39 G 56 16.09 Partly Cloudy and Breezy SCT050 -3.9 -13.9 46% -12 76.15 1015.7
26 14:52 W 41 G 63 16.09 A Few Clouds and Breezy FEW049 -3.9 -13.9 46% -12 76.1 1015.0
26 13:52 NW 33 G 50 16.09 Partly Cloudy and Breezy SCT047 SCT120 -3.9 -13.3 48% -11 76.05 1014.4
Date Time (est) 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)