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.
18 11:52 N 20 16.09 Overcast FEW020 BKN041 OVC050 2.2 -3.9 64% -2 76.17 1015.7
18 10:52 N 22 G 35 16.09 Overcast FEW018 OVC040 2.8 -0.6 79% -2 76.25 1016.6
18 09:52 N 11 16.09 Overcast OVC038 2.2 0 86% -1 76.25 1016.8 0.03
18 08:52 N 15 12.87 Overcast OVC035 2.2 0.6 89% -1 76.25 1016.6
18 07:52 N 7 12.87 Overcast OVC027 1.7 0.6 93% -0 76.28 1017.2 0.03
18 06:52 NW 9 8.05 Light Rain Fog/Mist OVC015 1.1 0.6 1.7 0 97% -1 76.3 1017.4 0.03 0.15
18 05:52 W 7 8.05 Light Rain Fog/Mist BKN017 OVC022 1.1 0.6 97% -1 76.28 1017.2 0.13
18 04:52 NW 7 11.27 Light Rain OVC039 1.1 0 92% -1 76.28 1017.0
18 03:52 Calm 16.09 Overcast FEW040 OVC055 1.1 -0.6 89% 76.28 1016.9
18 02:52 N 9 16.09 Overcast BKN060 OVC095 1.1 -1.1 85% -1 76.17 1015.6
18 01:52 Calm 16.09 Overcast FEW048 OVC060 0.6 -1.7 85% 76.28 1017.2
18 00:52 Calm 16.09 Overcast OVC140 0 -1.7 3.9 -0.6 88% 76.33 1017.7
17 23:52 Calm 16.09 Overcast OVC130 0.6 -1.7 85% 76.35 1018.2
17 22:52 W 6 16.09 Overcast FEW120 BKN130 OVC160 0 -1.7 88% 76.4 1018.8
17 21:52 Calm 16.09 Overcast FEW070 OVC120 0.6 -1.7 85% 76.4 1018.8
17 20:52 E 9 16.09 Partly Cloudy SCT070 2.8 -1.7 73% 1 76.38 1018.4
17 19:52 SE 9 16.09 A Few Clouds FEW070 2.8 -1.7 73% 1 76.43 1019.0
17 18:52 SE 13 16.09 A Few Clouds FEW070 3.3 -1.7 6.7 2.2 70% 0 76.43 1019.1
17 17:52 SE 9 16.09 Fair CLR 3.3 -2.2 68% 1 76.38 1018.4
17 16:52 SE 6 16.09 A Few Clouds FEW055 5 -1.7 62% 76.35 1018.0
17 15:52 SE 9 16.09 Partly Cloudy SCT055 6.7 -1.1 58% 5 76.3 1017.4
17 14:52 Vrbl 11 16.09 A Few Clouds FEW055 FEW100 6.1 -1.1 60% 4 76.28 1017.0
17 13:52 S 13 16.09 Mostly Cloudy FEW050 SCT090 BKN250 5 -1.7 62% 2 76.25 1016.8
17 11:52 SW 15 16.09 Mostly Cloudy BKN065 2.2 -2.8 70% -1 76.28 1017.1
17 10:52 S 15 16.09 Mostly Cloudy SCT022 BKN065 BKN150 1.1 -2.2 79% -3 76.33 1017.7 0.03
17 09:52 S 15 12.87 Light Snow SCT041 OVC060 0.6 -2.2 82% -3 76.3 1017.4 0.05 0.05
17 08:52 SW 6 11.27 Light Snow BKN030 OVC060 2.8 -8.9 42% 76.28 1017.2
17 07:52 SE 11 16.09 Mostly Cloudy BKN055 BKN070 2.8 -10.6 37% 0 76.2 1016.2
17 06:52 S 13 16.09 Mostly Cloudy SCT060 BKN075 3.3 -11.1 3.3 2.2 34% 0 76.2 1016.2
17 05:52 S 13 16.09 Overcast OVC080 3.3 -11.7 33% 0 76.17 1015.8
17 04:52 S 17 16.09 Overcast OVC095 2.8 -12.2 33% -1 76.12 1015.1
17 03:52 S 17 G 30 16.09 Overcast OVC100 2.8 -12.8 31% -1 76.2 1015.9
17 02:52 S 13 16.09 Overcast OVC110 2.8 -13.3 30% -0 76.25 1016.6
17 01:52 S 11 16.09 Overcast BKN110 OVC160 2.8 -13.3 30% 0 76.2 1016.2
17 00:52 Calm 16.09 Overcast BKN080 OVC160 2.2 -13.3 2.8 0.6 31% 76.23 1016.6
16 23:52 S 7 16.09 Overcast SCT080 OVC160 2.2 -13.3 31% 0 76.2 1016.3
16 22:52 S 13 16.09 Overcast SCT110 OVC160 2.8 -13.9 28% -0 76.2 1016.1
16 21:52 S 15 16.09 Overcast BKN075 OVC120 2.2 -13.9 30% -1 76.17 1015.7
16 20:52 S 15 16.09 Overcast OVC070 1.7 -13.3 32% -2 76.23 1016.3
16 18:52 S 13 16.09 Overcast OVC070 0.6 -13.9 0.6 -1.1 33% -3 76.23 1016.3
16 17:52 S 11 16.09 Overcast OVC080 0.6 -13.9 33% -2 76.2 1016.3
16 16:52 S 19 16.09 Overcast OVC085 0 -14.4 33% -5 76.2 1016.2
16 15:52 S 11 16.09 Overcast OVC080 0 -14.4 33% -3 76.23 1016.4
16 14:52 S 9 16.09 Overcast OVC085 -0.6 -14.4 35% -3 76.23 1016.4
16 13:52 S 20 16.09 Mostly Cloudy BKN095 BKN130 0 -13.9 35% -5 76.2 1016.3
16 12:52 S 17 16.09 Mostly Cloudy BKN100 BKN130 -1.1 -14.4 -0.6 -7.8 36% -6 76.23 1016.5
16 11:52 SW 13 16.09 Mostly Cloudy BKN100 BKN130 -1.7 -15 36% -6 76.28 1017.4
16 10:52 S 13 16.09 Mostly Cloudy BKN120 BKN220 -2.2 -15 37% -6 76.25 1016.8
16 09:52 SW 11 16.09 Mostly Cloudy BKN160 BKN220 -2.8 -15 39% -7 76.25 1016.8
16 08:52 SW 17 G 28 16.09 Mostly Cloudy BKN220 -3.9 -14.4 44% -9 76.2 1016.3
16 07:52 SW 11 16.09 A Few Clouds FEW050 -6.1 -14.4 52% -10 76.15 1015.4
16 06:52 SW 6 16.09 Fair CLR -6.1 -14.4 -5.6 -6.7 52% 76.1 1014.9
16 05:52 W 11 16.09 A Few Clouds FEW050 -6.1 -15 50% -10 76.05 1014.1
16 04:52 W 22 16.09 Fair CLR -6.1 -15 50% -13 75.95 1012.8
16 03:52 W 20 16.09 Fair CLR -6.1 -15 50% -12 75.9 1012.3
16 02:52 W 26 G 39 16.09 Fair CLR -5.6 -16.1 44% -13 75.9 1012.0
16 01:52 NW 22 16.09 Fair CLR -6.1 -16.1 45% -13 75.79 1010.9
16 00:52 NW 37 G 56 16.09 Fair and Breezy CLR -5.6 -15.6 -5 -6.1 46% -14 75.72 1009.7
15 23:52 NW 24 G 48 16.09 A Few Clouds FEW045 -5.6 -14.4 50% -12 75.64 1008.8
15 22:52 NW 24 G 46 16.09 Mostly Cloudy BKN045 -5.6 -15.6 46% -12 75.64 1008.8
15 21:52 NW 35 G 48 16.09 Mostly Cloudy and Breezy BKN048 -5.6 -16.1 44% -14 75.62 1008.4
15 20:52 NW 24 G 44 16.09 A Few Clouds FEW055 -5.6 -16.1 44% -12 75.57 1007.9
15 19:52 W 28 G 44 16.09 A Few Clouds FEW060 -5.6 -16.1 44% -13 75.51 1007.1
15 18:52 NW 30 G 50 16.09 A Few Clouds FEW060 -5 -16.1 0 -5 42% -12 75.46 1006.6
15 17:52 NW 28 G 41 16.09 Mostly Cloudy BKN060 -3.9 -15 42% -11 75.44 1006.0
15 16:52 NW 28 G 48 16.09 A Few Clouds FEW060 -3.3 -15 40% -10 75.39 1005.3
15 15:52 NW 30 G 44 16.09 A Few Clouds FEW060 -1.7 -15 36% -8 75.34 1004.6
15 14:52 W 31 G 52 16.09 Partly Cloudy SCT060 -0.6 -15.6 31% -7 75.26 1003.7
15 13:52 W 26 G 43 16.09 Partly Cloudy SCT060 0 -15.6 30% -6 75.23 1003.3
15 12:52 W 39 G 52 16.09 Mostly Cloudy and Breezy BKN060 -1.7 -15.6 0 -2.2 34% -9 75.29 1003.7
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)