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.
21 05:52 Calm 16.09 Mostly Cloudy BKN055 9.4 9.4 100% 75.69 1008.9
21 04:52 Calm 16.09 Mostly Cloudy BKN055 10.6 10 96% 75.64 1008.4 0.18
21 03:52 SW 7 16.09 Mostly Cloudy BKN065 BKN100 11.1 10.6 97% 75.62 1008.0
21 02:52 S 7 16.09 Mostly Cloudy FEW050 BKN065 BKN180 11.1 10.6 97% 75.64 1008.3 0.18
21 01:52 S 6 16.09 Light Rain SCT047 BKN075 OVC110 12.2 10 16.7 11.7 87% 75.69 1009.0 0.43 0.51
21 00:52 E 6 16.09 Light Rain FEW055 BKN075 OVC100 12.2 10.6 90% 75.67 1008.6 0.03
20 23:52 N 28 G 41 16.09 Overcast FEW070 OVC080 15 8.3 64% 75.74 1009.7
20 22:52 SW 15 16.09 Overcast OVC085 15 8.9 67% 75.64 1008.3 0.03 0.05
20 21:52 S 19 16.09 Light Rain OVC075 14.4 9.4 72% 75.69 1009.0 0.03
20 20:52 S 17 16.09 Overcast OVC070 14.4 9.4 72% 75.72 1009.3
20 19:52 S 15 16.09 Light Rain OVC060 13.9 10.6 22.2 13.3 81% 75.74 1009.8 0.08 0.15
20 18:52 S 6 11.27 Light Rain OVC060 14.4 10 75% 75.79 1010.3 0.08
20 17:52 W 15 16.09 Light Rain BKN060 OVC100 20.6 4.4 35% 75.69 1009.2
20 16:52 S 19 G 43 16.09 Overcast BKN100 OVC200 21.7 2.8 29% 75.64 1008.5
20 15:52 S 30 G 59 16.09 Overcast FEW090 BKN140 OVC200 21.7 2.8 29% 75.74 1009.7
20 14:52 S 20 G 46 16.09 Overcast FEW090 BKN140 OVC200 21.7 3.3 30% 75.87 1011.2
20 13:52 S 22 G 35 16.09 Mostly Cloudy FEW140 BKN250 21.7 3.9 21.7 5 31% 76.02 1013.4
20 12:52 S 19 G 33 16.09 Mostly Cloudy FEW070 BKN250 19.4 3.9 36% 76.15 1015.1
20 11:52 S 19 16.09 Partly Cloudy FEW040 SCT250 16.7 3.3 41% 76.25 1016.5
20 10:52 S 15 16.09 A Few Clouds FEW250 13.3 2.8 49% 76.33 1017.6
20 09:52 S 11 16.09 A Few Clouds FEW030 FEW250 9.4 2.2 61% 8 76.43 1018.8
20 08:52 S 7 16.09 Partly Cloudy SCT250 7.2 1.7 68% 6 76.48 1019.5
20 07:52 S 7 16.09 Partly Cloudy SCT250 5 1.1 6.7 3.9 76% 4 76.48 1019.6
20 06:52 S 9 16.09 A Few Clouds FEW250 3.9 0.6 79% 2 76.48 1019.6
20 05:52 S 9 16.09 Fair CLR 5 0.6 73% 3 76.48 1019.6
20 04:52 S 9 16.09 Fair CLR 5 0.6 73% 3 76.48 1019.7
20 03:52 S 15 16.09 Fair CLR 5.6 0.6 71% 3 76.5 1020.1
20 02:52 S 13 16.09 Fair CLR 6.1 0.6 68% 4 76.58 1020.8
20 01:52 S 9 16.09 Fair CLR 6.1 0.6 11.1 4.4 68% 4 76.63 1021.5
20 00:52 SE 6 16.09 A Few Clouds FEW140 FEW250 5 0 70% 76.66 1022.0
19 23:52 S 9 16.09 Mostly Cloudy BKN250 7.8 0 58% 6 76.63 1021.7
19 22:52 S 13 16.09 Mostly Cloudy BKN250 8.9 -0.6 52% 7 76.63 1021.6
19 21:52 S 11 16.09 Mostly Cloudy BKN200 10 -0.6 48% 9 76.61 1021.5
19 20:52 S 11 16.09 Partly Cloudy SCT200 10.6 -1.1 45% 76.58 1021.1
19 19:52 S 11 16.09 A Few Clouds FEW070 FEW200 11.1 -0.6 15 8.9 45% 76.56 1020.8
19 18:52 S 13 16.09 Partly Cloudy FEW070 SCT200 12.8 0 42% 76.56 1020.7
19 17:52 SE 9 16.09 Partly Cloudy FEW060 SCT200 13.9 -0.6 37% 76.56 1020.6
19 16:52 Vrbl 7 16.09 Partly Cloudy FEW060 SCT200 14.4 -0.6 36% 76.56 1020.8
19 15:52 Vrbl 7 16.09 Mostly Cloudy FEW060 BKN200 13.9 -1.1 36% 76.61 1021.5
19 14:52 Vrbl 6 16.09 Mostly Cloudy FEW055 BKN200 13.3 -1.1 37% 76.66 1022.2
19 13:52 N 9 16.09 Mostly Cloudy BKN060 BKN110 BKN250 11.7 -1.7 11.7 2.2 40% 76.73 1023.0
19 12:52 Vrbl 9 16.09 Mostly Cloudy SCT110 BKN250 10.6 -2.8 39% 76.81 1024.0
19 11:52 Vrbl 9 16.09 Mostly Cloudy SCT110 BKN250 8.3 -3.3 44% 7 76.84 1024.5
19 10:52 SW 9 16.09 Mostly Cloudy BKN060 BKN250 6.7 -3.3 49% 5 76.89 1025.0
19 09:52 S 7 16.09 Mostly Cloudy BKN060 3.9 -2.8 62% 2 76.91 1025.4
19 08:52 S 13 16.09 Mostly Cloudy BKN060 2.8 -2.8 67% -0 76.89 1025.3
19 07:52 S 13 16.09 Mostly Cloudy BKN060 2.2 -3.3 2.2 1.7 67% -1 76.86 1024.8
19 06:52 S 7 16.09 Mostly Cloudy BKN060 2.2 -3.3 67% 0 76.86 1024.7
19 05:52 S 17 16.09 Overcast OVC060 2.2 -3.9 64% -2 76.81 1024.4
19 04:52 S 7 16.09 Overcast BKN060 OVC095 1.7 -3.3 70% -0 76.84 1024.5
19 03:52 SE 7 16.09 Overcast OVC065 1.7 -3.9 67% -0 76.86 1024.8
19 02:52 S 7 16.09 Overcast OVC100 2.2 -4.4 62% 0 76.91 1025.5
19 01:52 S 9 16.09 Overcast FEW060 OVC100 2.2 -5 2.8 1.7 59% -0 76.96 1026.2
19 00:52 S 11 16.09 Overcast OVC070 2.2 -5.6 57% -1 76.99 1026.6
18 23:52 SE 9 16.09 Overcast OVC070 2.2 -6.7 52% -0 76.99 1026.7
18 22:52 SE 15 16.09 Overcast OVC075 2.8 -7.2 48% -1 77.01 1026.8
18 21:52 SE 13 16.09 Mostly Cloudy SCT085 BKN120 2.8 -8.3 44% -0 77.01 1026.9
18 20:52 SE 13 16.09 Partly Cloudy FEW080 SCT100 2.2 -8.9 44% -1 77.01 1026.9
18 19:52 SE 11 16.09 Partly Cloudy SCT100 SCT250 2.8 -10 5 2.8 39% 0 76.96 1026.3
18 18:52 SW 13 16.09 A Few Clouds FEW100 FEW250 3.9 -11.7 31% 1 76.99 1026.6
18 17:52 SW 17 16.09 A Few Clouds FEW070 FEW250 5 -11.1 30% 2 76.99 1026.7
18 16:52 S 11 16.09 A Few Clouds FEW070 FEW250 5 -11.1 30% 3 77.01 1027.1
18 15:52 Vrbl 9 16.09 A Few Clouds FEW080 FEW250 4.4 -11.7 30% 2 77.06 1027.6
18 14:52 S 17 G 33 16.09 A Few Clouds FEW075 FEW250 3.3 -12.2 31% -0 77.11 1028.3
18 13:52 SE 19 G 33 16.09 A Few Clouds FEW075 FEW250 2.8 -12.8 3.3 -3.3 31% -1 77.19 1029.4
18 12:52 E 15 16.09 A Few Clouds FEW140 FEW250 2.2 -12.8 32% -1 77.27 1030.3
18 11:52 Calm 16.09 A Few Clouds FEW250 0.6 -12.8 36% 77.29 1030.8
18 10:52 Vrbl 6 16.09 Mostly Cloudy BKN140 BKN250 -0.6 -12.2 42% 77.27 1030.5
18 09:52 N 9 16.09 Mostly Cloudy SCT120 BKN150 BKN220 -2.2 -12.2 47% -5 77.24 1030.1
18 08:52 N 13 16.09 Mostly Cloudy BKN170 BKN220 -2.8 -12.2 49% -7 77.19 1029.4
18 07:52 N 9 16.09 Mostly Cloudy BKN250 -3.3 -11.7 -3.3 -5 53% -7 77.22 1029.6
18 06:52 NW 17 16.09 Mostly Cloudy BKN250 -3.9 -11.7 55% -9 77.22 1029.6
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)