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.
18 05:52 W 7 16.09 Mostly Cloudy BKN250 -4.4 -11.1 60% -7 77.22 1029.6
18 04:52 W 11 16.09 Fair CLR -4.4 -11.7 57% -8 77.09 1028.2
18 03:52 W 6 16.09 Fair CLR -4.4 -11.7 57% 77.06 1027.8
18 02:52 NW 17 16.09 Fair CLR -3.3 -11.7 53% -8 77.01 1027.0
18 01:52 NW 13 16.09 Fair CLR -3.3 -12.8 0.6 -3.3 48% -8 77.01 1027.0
18 00:52 NW 13 16.09 Fair CLR -2.8 -12.8 46% -7 76.96 1026.5
17 23:52 NW 17 16.09 Fair CLR -2.2 -12.2 47% -7 76.89 1025.3
17 22:52 NW 26 G 37 16.09 Fair CLR -1.1 -12.8 41% -7 76.81 1024.2
17 21:52 NW 24 G 39 16.09 Fair CLR -1.1 -12.8 41% -7 76.78 1024.0
17 20:52 NW 28 G 46 16.09 A Few Clouds FEW100 -0.6 -12.2 42% -7 76.71 1022.9
17 19:52 NW 26 G 41 16.09 A Few Clouds FEW060 FEW090 0.6 -10.6 4.4 0.6 43% -5 76.58 1021.1
17 18:52 NW 28 G 39 16.09 Mostly Cloudy BKN065 BKN090 1.7 -10 42% -4 76.45 1019.5
17 17:52 NW 22 G 44 16.09 Mostly Cloudy SCT055 BKN070 2.8 -9.4 41% -2 76.33 1017.9
17 16:52 NW 31 G 39 16.09 Mostly Cloudy BKN060 BKN080 3.9 -10 36% -1 76.23 1016.3
17 15:52 NW 24 G 39 16.09 Mostly Cloudy BKN060 BKN080 2.8 -8.9 42% -2 76.23 1016.3
17 14:52 W 22 G 46 16.09 Mostly Cloudy BKN065 BKN080 2.8 -9.4 41% -2 76.17 1015.7
17 13:52 NW 26 G 39 16.09 Mostly Cloudy BKN055 BKN075 2.8 -8.9 3.9 -1.1 42% -2 76.2 1015.9
17 12:52 NW 30 G 41 16.09 Mostly Cloudy BKN065 3.3 -8.9 41% -2 76.2 1016.0
17 11:52 W 28 G 43 16.09 Mostly Cloudy BKN055 2.8 -8.9 42% -2 76.2 1016.2
17 10:52 W 28 G 57 16.09 Partly Cloudy SCT055 2.2 -10.6 39% -3 76.23 1016.3
17 09:52 W 26 G 43 16.09 Partly Cloudy SCT055 SCT250 1.7 -10 42% -3 76.17 1015.8
17 08:52 W 15 16.09 Partly Cloudy SCT055 SCT250 0 -9.4 50% -4 76.15 1015.4
17 07:52 NW 19 16.09 Partly Cloudy FEW050 SCT250 -1.1 -10 1.7 -1.1 51% -6 76.02 1013.5
17 06:52 W 19 G 39 16.09 A Few Clouds FEW050 -1.1 -10 51% -6 75.95 1012.4
17 05:52 W 26 G 50 16.09 Mostly Cloudy BKN050 -0.6 -10 49% -6 75.82 1011.0
17 04:52 W 24 G 52 16.09 Mostly Cloudy BKN055 0 -10 47% -5 75.72 1009.4
17 03:52 W 20 G 41 16.09 A Few Clouds FEW055 0.6 -8.3 52% -4 75.62 1008.3
17 02:52 W 33 G 54 16.09 Overcast and Breezy OVC055 1.1 -6.7 56% -5 75.59 1007.6
17 01:52 NW 13 16.09 Partly Cloudy SCT055 1.7 -3.9 17.8 1.7 67% -2 75.41 1005.5 1.3
17 00:52 W 35 G 57 16.09 A Few Clouds and Breezy FEW050 2.8 -5 57% -3 75.29 1003.5
16 23:52 W 26 16.09 Partly Cloudy FEW050 SCT080 2.8 -1.7 73% -2 75.16 1002.0
16 22:52 NW 35 G 50 11.27 Light Rain and Breezy SCT017 BKN024 OVC040 2.2 0.6 89% -4 75.03 1000.1 0.18 1.3
16 21:52 NW 26 G 54 4.83 Light Rain Fog/Mist SCT013 OVC024 3.3 1.7 89% -1 74.85 997.9 0.61
16 20:52 NW 44 G 69 1.21 Heavy Rain Fog/Mist and Windy VV009 5 3.9 93% -1 74.65 995.3 0.51
16 19:52 Vrbl 11 G 43 16.09 Overcast FEW013 OVC035 18.3 13.9 18.3 16.1 76% 74.3 990.4
16 18:52 S 20 G 44 16.09 Overcast FEW011 SCT033 OVC120 18.3 15 81% 74.32 990.7
16 17:52 SE 22 G 37 16.09 Mostly Cloudy SCT010 BKN090 BKN110 17.2 16.1 93% 74.45 992.3
16 16:52 S 20 G 39 16.09 Overcast SCT025 BKN065 OVC120 16.7 15 90% 74.57 994.1
16 15:52 S 17 G 39 16.09 Overcast FEW022 BKN070 OVC120 16.1 13.9 87% 74.68 995.5
16 14:52 S 19 G 39 16.09 Light Rain FEW018 BKN039 OVC080 16.7 14.4 86% 74.78 996.7
16 13:52 S 19 11.27 Light Rain BKN050 OVC080 16.7 15 20.6 16.7 90% 74.85 997.7 0.2 0.94
16 12:52 S 39 G 59 4.83 Rain Fog/Mist and Breezy BKN027 BKN055 OVC070 17.2 15 87% 74.96 999.2 0.46
16 11:52 S 20 G 39 3.22 Light Rain Fog/Mist BKN009 BKN019 OVC022 18.9 17.2 90% 75.03 1000.1 0.28
16 10:52 S 19 G 39 16.09 Overcast BKN019 OVC025 20 16.7 81% 75.08 1000.7
16 09:52 S 17 G 48 16.09 Overcast BKN020 OVC025 19.4 16.7 84% 75.13 1001.6
16 08:52 S 22 G 39 16.09 Overcast OVC018 18.3 16.7 90% 75.16 1001.9
16 07:52 S 20 G 31 16.09 Overcast BKN014 OVC024 17.2 16.1 17.2 15 93% 75.23 1002.7 0.05
16 06:52 S 17 G 37 16.09 Overcast BKN008 OVC014 17.2 16.1 93% 75.26 1003.1 0.03
16 05:52 SE 20 G 33 16.09 Overcast BKN007 OVC012 16.1 15.6 97% 75.31 1003.9 0.03
16 04:52 SE 22 G 35 16.09 Overcast BKN008 OVC013 16.1 15.6 97% 75.39 1005.0
16 03:52 S 22 G 37 14.48 Light Rain OVC007 15.6 15 96% 75.49 1006.2
16 02:52 SE 20 G 35 16.09 Overcast OVC006 15.6 14.4 93% 75.57 1007.3
16 01:52 SE 22 G 48 14.48 Light Rain OVC006 15 13.9 15 11.7 93% 75.67 1008.7 0.03 0.2
16 00:52 SE 17 G 31 6.44 Light Rain Fog/Mist BKN007 OVC010 13.3 12.8 97% 75.79 1010.4 0.13
15 23:52 SE 15 G 30 11.27 Light Rain OVC014 13.3 11.7 90% 75.95 1012.5 0.05
15 22:52 SE 15 16.09 Mostly Cloudy BKN025 BKN038 13.3 10.6 84% 76.07 1014.2
15 21:52 SE 17 16.09 Mostly Cloudy BKN025 BKN090 13.3 9.4 77% 76.2 1015.9
15 20:52 E 11 16.09 Overcast BKN023 OVC037 11.7 5 64% 76.3 1017.2
15 19:52 E 13 16.09 Overcast SCT025 OVC037 12.8 6.7 13.9 12.8 67% 76.35 1018.1
15 18:52 E 22 G 37 16.09 Overcast BKN030 BKN050 OVC100 13.3 6.1 62% 76.4 1018.6
15 17:52 E 13 16.09 Overcast BKN033 OVC100 12.8 3.3 53% 76.48 1019.6
15 16:52 E 20 G 33 16.09 Overcast BKN034 OVC100 12.8 2.2 49% 76.56 1020.5
15 15:52 SE 19 G 35 16.09 Overcast OVC037 13.9 1.7 44% 76.61 1021.2
15 14:52 SE 20 G 39 16.09 Mostly Cloudy BKN040 BKN150 13.9 2.2 45% 76.66 1022.0
15 13:52 SE 20 G 37 16.09 Overcast OVC042 12.8 1.1 12.8 5.6 45% 76.78 1023.6
15 12:52 SE 22 G 35 16.09 Overcast BKN039 OVC070 11.1 0 47% 76.89 1025.1
15 11:52 SE 19 16.09 Overcast OVC038 10 -2.8 41% 8 76.94 1025.9
15 10:52 SE 17 G 31 16.09 Overcast OVC040 9.4 -3.3 41% 7 77.01 1026.8
15 09:52 E 19 G 30 16.09 Mostly Cloudy BKN045 8.9 -4.4 39% 6 77.01 1026.8
15 08:52 E 13 G 30 16.09 Mostly Cloudy BKN050 BKN170 7.8 -3.9 44% 6 77.01 1026.8
15 07:52 E 6 16.09 Mostly Cloudy SCT055 SCT170 BKN250 5.6 -4.4 6.7 2.8 49% 76.99 1026.6
15 06:52 Calm 16.09 Mostly Cloudy BKN055 BKN170 6.7 -5 43% 76.99 1026.4
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)