National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
Washington/Dulles International Airport, DC
Imperial (Metric)
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
27 22:52 Calm 10.00 Fair CLR 50 32 50% 30.23 1023.5
27 21:52 NW 7 10.00 Fair CLR 57 30 36% 30.21 1022.9
27 20:52 NW 10 10.00 Fair CLR 62.1 28 28% 30.18 1021.9
27 19:52 NW 9 10.00 A Few Clouds FEW080 64.9 28 70 64.9 25% 30.16 1021.2
27 18:52 NW 17 G 28 10.00 A Few Clouds FEW080 68 27 21% 30.13 1020.3
27 17:52 NW 16 G 25 10.00 A Few Clouds FEW080 69.1 28 22% 30.13 1020.2
27 16:52 NW 21 G 28 10.00 A Few Clouds and Breezy FEW080 69.1 28 22% 30.13 1020.0
27 15:52 NW 17 G 24 10.00 A Few Clouds FEW150 69.1 28.9 22% 30.12 1020.0
27 14:52 NW 17 G 36 10.00 A Few Clouds FEW150 66.9 26.1 21% 30.14 1020.5
27 13:52 NW 14 G 32 10.00 A Few Clouds FEW250 64.9 26.1 66 48.9 23% 30.15 1020.8
27 12:52 NW 13 G 26 10.00 A Few Clouds FEW250 64 30 28% 30.16 1021.1
27 11:52 NW 22 G 32 10.00 A Few Clouds and Breezy FEW250 61 30.9 32% 30.17 1021.7
27 10:52 NW 21 G 32 10.00 A Few Clouds and Breezy FEW250 57.9 32 38% 30.18 1021.8
27 09:52 NW 14 G 29 10.00 Partly Cloudy SCT250 55.9 33.1 42% 30.18 1021.9
27 08:52 NW 15 G 28 10.00 Mostly Cloudy BKN250 52 33.1 49% 30.18 1022.0
27 07:52 W 13 G 24 10.00 Mostly Cloudy BKN250 48.9 33.1 50 46.9 55% 44 30.18 1021.9
27 06:52 NW 14 G 24 10.00 Mostly Cloudy FEW050 BKN250 46.9 33.1 59% 42 30.16 1021.1
27 05:52 NW 18 G 28 10.00 Partly Cloudy FEW050 SCT250 48 32 54% 42 30.13 1020.1
27 04:52 NW 23 G 37 10.00 A Few Clouds and Breezy FEW050 48.9 32 52% 42 30.11 1019.4
27 03:52 NW 25 G 41 10.00 A Few Clouds and Breezy FEW050 50 32 50% 43 30.08 1018.4
27 02:52 NW 18 G 33 10.00 A Few Clouds FEW050 50 32 50% 44 30.09 1018.8
27 01:52 NW 15 G 28 10.00 A Few Clouds FEW050 50 32 60.1 50 50% 45 30.11 1019.4
27 00:52 NW 12 G 23 10.00 Fair CLR 51.1 34 52% 30.1 1019.3
26 23:52 NW 18 G 25 10.00 A Few Clouds FEW050 53.1 36 52% 30.09 1018.7
26 22:52 NW 10 10.00 A Few Clouds FEW050 54 37 53% 30.08 1018.7
26 21:52 NW 20 G 31 10.00 A Few Clouds FEW047 55 37.9 53% 30.07 1018.1
26 20:52 NW 14 G 26 10.00 A Few Clouds FEW050 FEW100 57 41 55% 30.04 1017.3
26 19:52 NW 20 G 39 10.00 A Few Clouds FEW050 FEW100 60.1 45 78.1 60.1 58% 29.99 1015.3
26 18:52 NW 24 G 38 10.00 A Few Clouds and Breezy FEW065 FEW100 66 48 52% 29.93 1013.4
26 17:52 NW 22 G 39 10.00 Mostly Cloudy and Breezy SCT065 BKN095 71.1 53.1 53% 29.89 1012.0
26 16:52 NW 23 G 35 10.00 Mostly Cloudy and Breezy SCT045 BKN070 75.9 57 52% 78 29.84 1010.1
26 15:52 NW 12 G 18 10.00 Mostly Cloudy FEW041CB BKN080 BKN120 75 63 66% 77 29.81 1009.3
26 14:52 S 10 10.00 Thunderstorm FEW026 SCT041CB BKN100 75.9 66 72% 77 29.82 1009.4
26 13:52 SW 3 10.00 Light Rain SCT021 BKN036 BKN100 73 64.9 75 64.9 76% 29.84 1010.4 0.01
26 12:52 S 12 10.00 Overcast BKN055 OVC120 72 66 82% 29.86 1010.9
26 11:52 SW 13 G 22 10.00 Overcast BKN050 OVC100 69.1 64.9 87% 29.87 1011.4
26 10:52 S 8 10.00 Light Rain OVC085 68 64.9 90% 29.87 1011.3 0.01
26 09:52 S 12 10.00 Overcast OVC085 66.9 64.9 93% 29.86 1011.0
26 08:52 S 10 7.00 Light Rain BKN090 OVC110 66 64.9 96% 29.87 1011.4 0.01
26 07:52 S 8 7.00 Light Rain BKN090 OVC110 64.9 64 66 64.9 97% 29.89 1011.9 0.01 0.01
26 06:52 S 8 10.00 Overcast BKN010 BKN100 OVC110 64.9 63 93% 29.88 1011.7
26 05:52 S 8 10.00 Mostly Cloudy FEW010 BKN110 64.9 64 97% 29.88 1011.5
26 04:52 S 14 G 21 10.00 Overcast BKN010 OVC020 66 64 93% 29.88 1011.4
26 03:52 S 9 10.00 Overcast BKN008 OVC090 66 64 93% 29.9 1012.1
26 02:52 S 9 10.00 Light Rain SCT008 OVC085 64.9 64 97% 29.92 1013.0
26 01:52 S 9 10.00 Overcast BKN017 OVC110 64.9 64 70 64.9 97% 29.95 1013.9 0.01 0.53
26 00:52 SE 6 6.00 Light Rain Fog/Mist FEW022 BKN100 OVC110 64.9 64 97% 29.97 1014.8 0.1
25 23:52 SE 5 3.00 Light Rain Fog/Mist FEW016CB BKN032 OVC055 64.9 64 97% 30 1015.6 0.37
25 22:52 S 3 8.00 Light Rain BKN036 OVC055 66 63 90% 30.01 1016.0 0.05 0.05
25 21:52 S 6 10.00 Mostly Cloudy BKN040 BKN080 69.1 62.1 78% 30.03 1016.7
25 20:52 S 6 10.00 Mostly Cloudy SCT060 BKN095 BKN140 BKN220 69.1 62.1 78% 30.04 1016.9
25 19:52 S 8 10.00 Mostly Cloudy FEW047 SCT065 BKN140 BKN250 70 62.1 75.9 70 76% 30.04 1017.0
25 18:52 S 7 10.00 Mostly Cloudy BKN047 BKN095 BKN160 72 61 68% 30.04 1017.0
25 17:52 S 12 10.00 Mostly Cloudy FEW039 SCT070 BKN100 BKN220 73.9 61 64% 30.04 1017.1
25 16:52 SE 12 10.00 Mostly Cloudy SCT044 BKN055 BKN120 BKN220 75 60.1 60% 77 30.05 1017.3
25 15:52 S 14 10.00 Mostly Cloudy SCT045 BKN080 BKN120 BKN200 75.9 59 56% 78 30.07 1018.1
25 14:52 S 12 10.00 Mostly Cloudy SCT042 BKN055 BKN080 BKN200 75 59 58% 77 30.11 1019.3
25 13:52 S 13 10.00 Overcast FEW033 BKN060 OVC160 73.9 59 75 61 60% 30.14 1020.4
25 12:52 S 12 10.00 Overcast SCT033 BKN075 OVC180 73 59 62% 30.16 1021.1
25 11:52 S 9 10.00 Mostly Cloudy FEW025 BKN075 BKN250 73.9 61 64% 30.18 1021.6
25 10:52 SW 10 10.00 Mostly Cloudy SCT025 BKN180 BKN250 71.1 59 66% 30.2 1022.6
25 09:52 S 12 10.00 Overcast SCT019 OVC250 68 57 68% 30.21 1022.8
25 08:52 S 9 10.00 Overcast FEW010 BKN018 OVC250 64 55 73% 30.22 1023.2
25 07:52 S 7 10.00 Mostly Cloudy SCT018 BKN250 61 52 61 48.9 72% 30.23 1023.4
25 06:52 Calm 10.00 Mostly Cloudy BKN020 BKN250 55 48.9 80% 30.23 1023.4
25 05:52 Calm 10.00 Partly Cloudy SCT025 SCT250 52 48 86% 30.22 1023.1
25 04:52 SE 7 10.00 A Few Clouds FEW250 54 48.9 83% 30.21 1022.8
25 03:52 SE 6 10.00 A Few Clouds FEW250 54 48 80% 30.23 1023.6
25 02:52 S 5 10.00 A Few Clouds FEW250 52 46 80% 30.23 1023.6
25 01:52 S 3 10.00 A Few Clouds FEW250 55 45 70 55 69% 30.23 1023.6
25 00:52 S 5 10.00 A Few Clouds FEW250 57.9 44.1 60% 30.24 1023.9
24 23:52 S 6 10.00 A Few Clouds FEW250 60.1 42.1 52% 30.25 1024.3
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)