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.
01 21:52 Calm 16.09 Mostly Cloudy BKN250 8.9 1.1 58% 76.53 1020.3
01 20:52 NW 7 16.09 Mostly Cloudy BKN250 11.7 0.6 47% 76.48 1019.6
01 19:52 NW 9 16.09 Mostly Cloudy FEW120 BKN200 13.3 1.1 17.8 12.2 44% 76.45 1019.2
01 18:52 W 7 16.09 Mostly Cloudy FEW070 BKN250 13.3 1.1 44% 76.38 1018.4
01 17:52 W 9 16.09 Mostly Cloudy FEW070 BKN250 15 1.1 39% 76.33 1017.7
01 16:52 NW 13 16.09 Mostly Cloudy SCT070 BKN250 17.2 1.1 34% 76.3 1017.0
01 15:52 NW 15 16.09 Mostly Cloudy SCT065 BKN250 17.8 1.1 33% 76.28 1016.9
01 14:52 NW 22 16.09 Mostly Cloudy BKN060 BKN250 16.7 1.7 37% 76.28 1016.8
01 13:52 NW 19 G 30 14.48 Mostly Cloudy SCT060 BKN250 17.2 2.2 17.8 4.4 37% 76.3 1017.1
01 12:52 W 19 G 37 16.09 Partly Cloudy FEW060 FEW090 SCT250 16.7 1.7 37% 76.33 1017.4
01 11:52 NW 30 G 43 16.09 Partly Cloudy FEW050 FEW080 SCT250 15.6 0.6 36% 76.35 1017.8
01 10:52 W 28 G 39 16.09 Partly Cloudy FEW080 SCT250 14.4 1.1 41% 76.35 1017.8
01 09:52 S 9 16.09 Mostly Cloudy BKN250 11.1 2.2 55% 76.35 1017.8
01 08:52 S 9 16.09 A Few Clouds FEW080 FEW250 6.7 1.7 71% 5 76.28 1017.0
01 07:52 S 7 16.09 A Few Clouds FEW080 FEW250 4.4 0.6 10.6 4.4 77% 3 76.23 1016.2
01 06:52 S 7 16.09 A Few Clouds FEW250 5 0.6 73% 4 76.15 1015.1
01 05:52 SW 11 16.09 A Few Clouds FEW250 6.1 0 65% 4 76.07 1014.3
01 04:52 W 9 16.09 Fair CLR 8.9 0 54% 8 76.05 1013.8
01 03:52 S 7 16.09 Fair CLR 8.3 0 56% 7 76.02 1013.4
01 02:52 W 19 16.09 A Few Clouds FEW060 10 0.6 52% 8 75.97 1012.8
01 01:52 W 15 16.09 A Few Clouds FEW060 10.6 1.1 12.8 10 52% 75.92 1012.1
01 00:52 SW 11 16.09 Mostly Cloudy BKN060 11.1 1.7 53% 75.92 1011.9
31 23:52 W 13 16.09 Partly Cloudy SCT060 10 1.7 57% 8 75.87 1011.4
31 22:52 W 13 16.09 Partly Cloudy SCT060 12.2 0.6 45% 75.84 1011.1
31 21:52 W 28 G 37 16.09 Mostly Cloudy BKN060 12.2 0 43% 75.77 1010.2
31 20:52 W 15 16.09 Mostly Cloudy BKN065 12.8 0 42% 75.74 1009.9
31 19:52 W 13 16.09 Mostly Cloudy BKN070 12.8 0 16.1 12.2 42% 75.72 1009.3
31 18:52 W 17 G 33 16.09 Overcast OVC070 13.3 -1.1 37% 75.64 1008.5
31 17:52 W 24 G 39 16.09 Partly Cloudy SCT070 13.3 -1.1 37% 75.59 1007.8
31 16:52 W 44 G 67 16.09 A Few Clouds and Windy FEW070 14.4 -0.6 36% 75.49 1006.4
31 15:52 W 33 G 54 16.09 A Few Clouds and Breezy FEW065 15.6 -1.1 32% 75.41 1005.1
31 14:52 W 39 G 57 16.09 A Few Clouds and Breezy FEW065 15.6 -0.6 33% 75.34 1004.4
31 13:52 W 39 G 59 16.09 Partly Cloudy and Breezy FEW065 SCT200 16.1 -0.6 16.1 10 32% 75.31 1003.8
31 12:52 NW 44 G 70 16.09 Partly Cloudy and Windy FEW065 FEW080 SCT250 15.6 -0.6 33% 75.31 1003.8
31 11:52 NW 37 G 59 16.09 Mostly Cloudy and Breezy FEW060 SCT080 BKN250 14.4 0 38% 75.31 1004.0
31 10:52 W 35 G 59 16.09 Partly Cloudy and Breezy FEW055 SCT250 13.3 0.6 42% 75.29 1003.8
31 09:52 W 35 G 61 16.09 A Few Clouds and Breezy FEW055 FEW250 12.8 0.6 44% 75.29 1003.8
31 08:52 W 17 G 41 16.09 A Few Clouds FEW050 11.1 1.7 53% 75.26 1003.5
31 07:52 W 26 G 43 16.09 Partly Cloudy SCT042 10 1.7 12.2 9.4 57% 7 75.21 1002.6
31 06:52 W 28 G 57 16.09 Mostly Cloudy BKN042 10.6 2.8 59% 75.13 1001.5
31 05:52 NW 28 G 43 16.09 Partly Cloudy SCT043 10.6 3.3 61% 75.03 1000.3
31 04:52 W 39 G 61 16.09 Mostly Cloudy and Breezy BKN045 11.7 3.3 57% 74.98 999.6
31 03:52 W 20 G 43 16.09 Mostly Cloudy BKN048 12.2 4.4 59% 74.98 999.4
31 02:52 W 20 G 35 16.09 Mostly Cloudy BKN048 11.7 4.4 61% 74.96 999.0
31 01:52 SW 11 16.09 Partly Cloudy SCT048 9.4 5 13.3 8.9 74% 8 74.93 998.6
31 00:52 SW 9 16.09 A Few Clouds FEW050 10.6 5 69% 74.93 998.7
30 23:52 SW 11 16.09 A Few Clouds FEW055 10.6 5 69% 74.9 998.4
30 22:52 SW 11 16.09 A Few Clouds FEW055 8.9 6.1 83% 7 74.93 999.1
30 21:52 W 7 16.09 A Few Clouds FEW070 11.7 5.6 66% 74.96 999.3
30 20:52 W 11 16.09 A Few Clouds FEW050 12.8 6.1 64% 74.96 999.3
30 19:52 NW 6 16.09 Partly Cloudy FEW046 SCT070 13.3 7.8 18.9 12.8 70% 74.96 999.0
30 18:52 NW 13 16.09 Mostly Cloudy BKN044 15 8.3 64% 74.93 999.0
30 17:52 W 11 16.09 Partly Cloudy SCT037 16.1 7.8 58% 74.9 998.4
30 16:52 W 19 16.09 Mostly Cloudy FEW038 BKN065 BKN080 17.2 10 63% 74.88 998.1
30 15:52 SW 19 16.09 Mostly Cloudy SCT025 BKN037 BKN120 17.8 8.9 56% 74.85 997.9
30 14:52 S 17 16.09 Mostly Cloudy SCT022 BKN035 18.3 10.6 61% 74.88 998.2
30 13:52 S 17 G 30 16.09 Mostly Cloudy BKN016 BKN042 17.2 12.8 17.2 11.7 76% 74.93 998.9 0.1
30 12:52 S 15 16.09 Overcast BKN015 OVC021 15 12.8 87% 74.98 999.4
30 11:52 S 19 G 33 16.09 Overcast SCT008 OVC012 15 13.3 90% 75.01 999.9
30 10:52 S 11 16.09 Overcast OVC010 15 13.3 90% 75.06 1000.4 0.1
30 09:52 E 6 11.27 Mostly Cloudy FEW008 BKN012 BKN019 12.8 11.7 93% 75.06 1000.7
30 08:52 NW 7 16.09 Overcast SCT007 BKN021 OVC027 11.7 10.6 93% 75.11 1001.2 0.1
30 07:52 SE 17 G 28 8.05 Thunderstorm Light Rain Fog/Mist SCT007 OVC015CB 15.6 14.4 15.6 10.6 93% 75.03 1000.1 0.15 1.12
30 06:52 E 19 G 33 4.83 Light Rain Fog/Mist SCT005 OVC013 13.9 13.3 96% 75.03 1000.1 0.13
30 05:52 NE 20 8.05 Fog/Mist OVC005 12.2 11.7 97% 75.16 1001.8 0.03
30 04:52 NE 19 8.05 Light Rain Fog/Mist BKN005 OVC023 11.1 10.6 97% 75.31 1003.8 0.05 0.81
30 03:52 N 11 9.66 Light Rain Fog/Mist SCT008 BKN011 OVC019 11.1 10.6 97% 75.49 1006.4 0.36
30 02:52 N 13 9.66 Heavy Rain Fog/Mist SCT008 BKN011 OVC019 11.1 10.6 97% 75.62 1007.8 0.41
30 01:52 NE 17 9.66 Light Rain Fog/Mist BKN007 BKN011 OVC022 10.6 10 12.2 10.6 96% 75.67 1008.8 0.28 1.73
30 00:52 NE 20 4.83 Light Rain Fog/Mist BKN007 BKN011 OVC018 10.6 10 96% 75.77 1010.0 0.46
29 23:52 N 15 6.44 Rain Fog/Mist BKN007 OVC013 10.6 10 96% 75.92 1012.1 0.81
29 22:52 NE 6 6.44 Light Rain Fog/Mist OVC007 10.6 10 96% 76.02 1013.6 0.1 0.18
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)