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.
25 03:52 S 26 G 39 16.09 Overcast OVC110 2.8 -8.3 44% -2 75.49 1006.5
25 02:52 S 19 G 35 16.09 Overcast OVC100 2.2 -8.9 44% -2 75.49 1006.5
25 01:52 S 19 16.09 Overcast OVC090 1.7 -8.9 46% -2 75.59 1007.9
25 00:52 S 19 G 39 16.09 Overcast OVC085 1.1 -8.9 1.7 -0.6 48% -3 75.72 1009.6
24 23:52 S 11 16.09 Mostly Cloudy SCT080 BKN095 0.6 -9.4 48% -2 75.74 1010.0
24 22:52 S 11 16.09 Partly Cloudy SCT200 0 -10 47% -3 75.84 1011.5
24 21:52 S 11 16.09 A Few Clouds FEW150 0 -10.6 45% -3 75.92 1012.4
24 20:52 S 13 16.09 A Few Clouds FEW150 0.6 -10.6 43% -3 75.95 1012.9
24 19:52 S 13 16.09 Mostly Cloudy SCT100 BKN150 1.7 -10 42% -2 76.02 1013.6
24 18:52 S 9 16.09 Mostly Cloudy FEW100 BKN150 1.1 -10.6 4.4 1.1 42% -1 76.05 1014.1
24 17:52 SW 13 16.09 Mostly Cloudy SCT120 BKN250 2.8 -11.1 36% -0 76 1013.5
24 16:52 SW 13 16.09 Mostly Cloudy SCT120 BKN250 4.4 -11.1 32% 2 76.02 1013.8
24 15:52 W 11 16.09 Mostly Cloudy BKN120 BKN250 3.3 -11.7 33% 1 76.05 1014.3
24 14:52 SW 20 G 33 16.09 Overcast BKN120 OVC250 3.9 -10.6 34% 0 76.1 1014.9
24 13:52 NW 20 G 39 16.09 Mostly Cloudy FEW060 FEW120 BKN250 2.8 -11.1 36% -1 76.17 1016.0
24 12:52 W 22 G 43 16.09 Mostly Cloudy FEW055 BKN250 2.2 -10.6 2.2 -3.9 39% -2 76.25 1016.9
24 11:52 W 22 G 35 16.09 Mostly Cloudy BKN050 BKN250 1.1 -10.6 42% -4 76.33 1017.9
24 10:52 NW 20 G 37 16.09 Mostly Cloudy BKN046 -0.6 -11.1 45% -6 76.35 1018.4
24 09:52 NW 26 G 41 16.09 Partly Cloudy SCT040 -1.1 -11.7 45% -7 76.38 1018.5
24 08:52 NW 28 G 41 16.09 A Few Clouds FEW040 -2.8 -11.7 51% -9 76.4 1019.0
24 07:52 NW 22 G 31 16.09 A Few Clouds FEW040 FEW250 -3.3 -11.7 53% -9 76.43 1019.2
24 06:52 NW 26 G 43 16.09 A Few Clouds FEW040 -3.9 -11.7 -1.7 -3.9 55% -11 76.38 1018.6
24 05:52 NW 22 G 35 16.09 A Few Clouds FEW040 -3.9 -10.6 60% -10 76.33 1017.8
24 04:52 NW 24 G 37 16.09 A Few Clouds FEW040 -3.3 -11.1 55% -10 76.28 1017.2
24 03:52 NW 19 G 35 16.09 Fair CLR -2.8 -10.6 55% -8 76.25 1016.8
24 02:52 NW 20 G 35 16.09 Fair CLR -2.8 -10.6 55% -8 76.23 1016.4
24 01:52 NW 20 16.09 Fair CLR -2.2 -10 56% -8 76.23 1016.4
24 00:52 NW 31 G 57 16.09 A Few Clouds FEW042 -1.7 -10 2.2 -1.7 54% -8 76.23 1016.3
23 23:52 NW 19 G 33 16.09 Overcast BKN042 OVC049 -0.6 -8.9 54% -5 76.2 1016.2
23 22:52 NW 31 G 52 16.09 Overcast OVC045 0 -8.3 54% -6 76.17 1015.6
23 21:52 NW 26 G 39 16.09 Mostly Cloudy SCT060 BKN200 0 -7.2 59% -6 76.15 1015.3
23 20:52 NW 19 G 33 16.09 Mostly Cloudy FEW040 BKN060 BKN200 0.6 -6.7 58% -4 76.12 1015.1
23 19:52 NW 24 G 43 16.09 Mostly Cloudy BKN050 BKN200 1.1 -6.7 56% -4 76.07 1014.4
23 18:52 NW 26 G 46 16.09 Mostly Cloudy BKN047 BKN180 2.2 -6.1 4.4 2.2 55% -3 76.05 1013.9
23 17:52 NW 30 G 54 16.09 Mostly Cloudy BKN049 BKN180 2.8 -5.6 54% -2 75.95 1012.8
23 16:52 NW 26 G 44 16.09 Mostly Cloudy BKN050 BKN180 3.3 -5 55% -1 75.87 1011.7
23 15:52 NW 28 G 56 16.09 Mostly Cloudy BKN044 BKN085 BKN150 3.9 -4.4 55% -1 75.79 1010.8
23 14:52 NW 37 G 54 16.09 Overcast and Breezy SCT045 BKN085 OVC150 4.4 -3.9 55% -1 75.74 1010.1
23 13:52 NW 28 G 52 16.09 Overcast SCT044 BKN085 BKN150 OVC250 3.9 -3.9 57% -1 75.69 1009.4
23 12:52 NW 35 G 54 16.09 Overcast and Breezy BKN045 OVC150 3.3 -4.4 3.3 0.6 57% -2 75.69 1009.4
23 11:52 NW 24 G 46 16.09 Overcast FEW034 BKN044 OVC150 3.3 -3.9 60% -1 75.69 1009.4
23 10:52 NW 39 G 56 16.09 Overcast and Breezy FEW034 BKN048 BKN150 OVC250 2.8 -3.9 62% -3 75.67 1009.1
23 09:52 NW 26 G 46 16.09 Overcast FEW028 SCT040 OVC055 1.1 -3.3 73% -4 75.69 1009.3
23 08:52 NW 31 G 50 16.09 Overcast OVC042 1.1 -3.9 70% -5 75.69 1009.2
23 07:52 NW 26 G 52 16.09 Overcast BKN043 OVC050 0.6 -4.4 70% -5 75.67 1009.0
23 06:52 NW 31 G 50 16.09 Overcast OVC048 0.6 -4.4 0.6 -0.6 70% -5 75.62 1008.5
23 05:52 NW 26 G 48 16.09 Overcast OVC060 0 -4.4 73% -6 75.62 1008.3
23 04:52 NW 26 G 46 16.09 Overcast OVC049 0 -3.9 75% -6 75.62 1008.3
23 03:52 NW 26 G 46 16.09 Overcast OVC070 0 -3.9 75% -6 75.62 1008.3
23 02:52 NW 28 G 37 16.09 Overcast BKN055 OVC070 0 -3.3 79% -6 75.62 1008.2
23 01:52 NW 20 6.44 Light Snow Fog/Mist SCT015 BKN020 OVC030 -0.6 -2.2 89% -6 75.64 1008.7
23 00:52 NW 26 G 39 6.44 Light Snow Fog/Mist FEW018 BKN027 OVC031 0 -1.7 1.1 0 88% -6 75.64 1008.6 0.23
22 23:52 NW 31 G 50 4.02 Light Snow Fog/Mist OVC020 0 -1.7 88% -6 75.67 1008.8
22 22:52 NW 26 G 50 3.22 Light Snow Fog/Mist BKN019 OVC025 0.6 -1.7 85% -5 75.69 1009.4
22 21:52 NW 26 G 48 3.22 Light Snow Fog/Mist FEW013 BKN023 OVC029 0.6 -1.1 89% -5 75.74 1010.0 0.03 0.23
22 20:52 NW 24 G 41 1.21 Light Snow Fog/Mist BKN010 OVC014 0.6 -0.6 92% -5 75.77 1010.5 0.05
22 19:52 NW 28 2.41 Light Snow Fog/Mist BKN007 OVC012 0.6 0 96% -5 75.79 1010.8 0.15
22 18:52 NW 20 G 31 1.21 Light Snow Fog/Mist OVC004 0.6 0 3.3 0.6 96% -4 75.82 1011.0 0.2 1.22
22 17:52 NW 19 1.21 Light Snow Fog/Mist OVC004 0.6 0 96% -4 75.79 1010.8 0.33
22 16:52 NW 13 0.80 Snow Fog OVC004 0.6 0 96% -3 75.79 1010.5 0.23
22 15:52 NW 15 2.41 Light Snow Fog/Mist OVC006 1.1 0 92% -3 75.77 1010.4 0.2 0.46
22 14:52 N 15 4.83 Light Rain Snow Fog/Mist OVC007 2.2 1.1 93% -1 75.79 1010.5 0.18
22 13:52 N 19 9.66 Light Rain Fog/Mist BKN009 OVC012 2.8 1.7 93% -1 75.82 1010.8 0.08
22 12:52 N 17 11.27 Light Rain SCT009 OVC014 3.3 1.7 3.9 2.8 89% -0 75.87 1011.5 0.05 0.3
22 11:52 NE 11 8.05 Light Rain Fog/Mist SCT007 OVC012 3.3 1.7 89% 1 75.97 1012.9 0.03
22 10:52 N 6 16.09 Light Rain FEW007 SCT012 OVC015 3.3 1.7 89% 76.05 1014.0
22 09:52 NE 6 9.66 Light Rain Fog/Mist FEW007 BKN017 OVC025 2.8 1.7 93% 76.07 1014.5 0.05 0.23
22 08:52 NE 7 8.05 Light Rain Fog/Mist FEW007 BKN013 OVC024 3.3 1.7 89% 2 76.12 1014.8 0.15
22 07:52 Calm 14.48 Light Rain OVC021 3.3 2.2 93% 76.15 1015.3 0.03
22 06:52 N 7 16.09 Light Rain FEW020 BKN032 OVC043 3.9 1.7 4.4 2.8 86% 2 76.15 1015.2 0.1
22 05:52 Calm 16.09 Unknown Precip OVC039 3.3 2.2 93% 76.2 1016.0 0.03
22 04:52 NE 6 16.09 Light Rain OVC032 3.3 1.7 89% 76.2 1016.0 0.05
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)