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.
29 01:52 Calm 10.00 Mostly Cloudy BKN029 53.1 48.9 59 48.9 86% 30.32 1026.6
29 00:52 Calm 10.00 Partly Cloudy SCT032 SCT120 50 48 93% 30.33 1026.9
28 23:52 Calm 10.00 Partly Cloudy SCT033 SCT120 50 46.9 89% 30.34 1027.2
28 22:52 Calm 10.00 A Few Clouds FEW120 50 46.9 89% 30.34 1027.3
28 21:52 E 3 10.00 A Few Clouds FEW120 54 46.9 77% 30.34 1027.5
28 20:52 SE 3 10.00 Partly Cloudy SCT110 SCT200 57.9 46.9 67% 30.35 1027.5
28 19:52 SE 5 10.00 Mostly Cloudy BKN110 BKN200 59 48.9 66.9 57.9 69% 30.35 1027.6
28 18:52 SE 3 10.00 Mostly Cloudy BKN110 BKN200 61 51.1 70% 30.34 1027.6
28 17:52 Calm 10.00 Mostly Cloudy BKN100 BKN200 63 51.1 65% 30.35 1027.5
28 16:52 SE 6 10.00 Overcast FEW040 BKN110 OVC200 64 50 60% 30.35 1027.5
28 15:52 SE 7 10.00 Overcast FEW038 BKN110 OVC200 64.9 51.1 61% 30.35 1027.8
28 14:52 SE 8 9.00 Mostly Cloudy FEW030 BKN250 66 50 56% 30.36 1028.1
28 13:52 Calm 10.00 Mostly Cloudy FEW030 BKN250 64.9 48.9 64.9 46.9 56% 30.38 1028.7
28 12:52 Calm 10.00 Mostly Cloudy FEW025 FEW035 BKN250 64.9 50 59% 30.4 1029.4
28 11:52 Calm 10.00 Mostly Cloudy FEW025 FEW035 BKN250 62.1 50 65% 30.43 1030.3
28 10:52 Calm 10.00 Mostly Cloudy FEW035 FEW080 BKN250 61 51.1 70% 30.44 1030.7
28 09:52 Calm 10.00 Mostly Cloudy FEW038 BKN250 57 52 83% 30.44 1030.9
28 08:52 Calm 7.00 Partly Cloudy FEW007 FEW012 SCT250 53.1 50 89% 30.44 1030.7
28 07:52 Calm 6.00 Fog/Mist FEW007 SCT012 SCT090 BKN250 46.9 46 48.9 45 97% 30.42 1030.3
28 06:52 Calm 6.00 Fog/Mist SCT008 BKN013 46.9 46 97% 30.41 1029.8
28 05:52 Calm 6.00 Fog/Mist FEW010 46 45 96% 30.4 1029.4
28 04:52 W 3 6.00 Fog/Mist FEW010 46.9 46 97% 30.39 1028.9
28 03:52 Calm 7.00 Fair CLR 48 46.9 96% 30.38 1028.8
28 02:52 Calm 7.00 Fair CLR 48 46.9 96% 30.39 1028.9
28 01:52 Calm 10.00 Fair CLR 48.9 48 60.1 48.9 97% 30.38 1028.8
28 00:52 S 3 10.00 Fair CLR 52 48.9 89% 30.38 1028.6
27 23:52 E 3 10.00 Fair CLR 50 48.9 96% 30.37 1028.4
27 22:52 Calm 10.00 Fair CLR 52 50 93% 30.36 1028.1
27 21:52 Calm 10.00 Fair CLR 55.9 50 81% 30.34 1027.5
27 20:52 E 3 10.00 Fair CLR 59 51.1 75% 30.33 1027.0
27 19:52 Calm 10.00 Fair CLR 59 52 72 57.9 78% 30.32 1026.9
27 18:52 E 3 10.00 A Few Clouds FEW250 61 52 72% 30.31 1026.5
27 17:52 Calm 10.00 A Few Clouds FEW250 69.1 50 51% 30.31 1026.3
27 16:52 Calm 10.00 A Few Clouds FEW250 72 50 46% 30.31 1026.2
27 15:52 Vrbl 3 10.00 Fair CLR 71.1 50 47% 30.31 1026.3
27 14:52 Vrbl 5 10.00 Fair CLR 71.1 50 47% 30.32 1026.5
27 13:52 Calm 10.00 Fair CLR 70 50 70 45 49% 30.33 1027.0
27 12:52 N 6 10.00 Fair CLR 68 48.9 51% 30.35 1027.7
27 11:52 NE 6 10.00 Fair CLR 66.9 48.9 53% 30.36 1028.1
27 10:52 N 6 10.00 Fair CLR 64 48 56% 30.37 1028.2
27 08:52 NE 5 9.00 Fair CLR 55 48.9 80% 30.36 1027.9
27 07:52 Calm 9.00 Fair CLR 46 44.1 48 44.1 93% 30.32 1026.8
27 06:52 NE 5 10.00 Fair CLR 46 44.1 93% 44 30.29 1025.9
27 05:52 Calm 10.00 Fair CLR 45 43 93% 30.28 1025.2
27 04:52 Calm 10.00 Fair CLR 45 44.1 97% 30.26 1024.7
27 03:52 Calm 10.00 Fair CLR 45 44.1 97% 30.25 1024.2
27 02:52 Calm 10.00 Fair CLR 46 45 96% 30.24 1024.1
27 01:52 S 3 10.00 A Few Clouds FEW250 46.9 45 54 46 93% 30.25 1024.2
27 00:52 Calm 10.00 A Few Clouds FEW250 46.9 45 93% 30.25 1024.1
26 23:52 Calm 10.00 A Few Clouds FEW250 48 46 93% 30.25 1024.2
26 22:52 SW 3 10.00 A Few Clouds FEW250 48.9 46 90% 30.24 1024.2
26 21:52 Calm 10.00 A Few Clouds FEW250 52 46.9 83% 30.24 1024.2
26 20:52 Calm 10.00 A Few Clouds FEW250 52 46 80% 30.24 1023.9
26 19:52 Calm 10.00 A Few Clouds FEW250 54 48 71.1 54 80% 30.24 1024.0
26 18:52 SW 3 10.00 A Few Clouds FEW250 62.1 46.9 58% 30.23 1023.6
26 17:52 SW 3 10.00 A Few Clouds FEW250 68 46 45% 30.22 1023.4
26 16:52 W 7 10.00 Fair CLR 70 45 41% 30.23 1023.5
26 15:52 W 8 10.00 Fair CLR 71.1 43 36% 30.24 1023.8
26 14:52 NW 5 10.00 Fair CLR 70 44.1 39% 30.26 1024.5
26 13:52 W 6 10.00 Fair CLR 70 45 70 39 41% 30.29 1025.5
26 12:52 Vrbl 5 10.00 A Few Clouds FEW250 68 46 45% 30.32 1026.6
26 11:52 Vrbl 6 10.00 A Few Clouds FEW250 64.9 46 51% 30.35 1027.7
26 10:52 Calm 10.00 A Few Clouds FEW250 59 48 67% 30.37 1028.4
26 09:52 Calm 9.00 A Few Clouds FEW250 53.1 48 83% 30.38 1028.8
26 08:52 Calm 9.00 Fair CLR 46 44.1 93% 30.39 1029.2
26 07:52 Calm 9.00 Shallow Fog CLR 39 37.9 44.1 37.9 96% 30.38 1028.8
26 06:52 Calm 8.00 Patches Fog FEW002 39.9 39.9 100% 30.38 1028.8
26 05:52 Calm 9.00 Fair CLR 39 39 100% 30.38 1028.6
26 04:52 Calm 8.00 Fair CLR 39.9 39 97% 30.38 1028.7
26 03:52 Calm 10.00 Fair CLR 39.9 39.9 100% 30.4 1029.3
26 02:52 Calm 10.00 Fair CLR 41 41 100% 30.41 1029.8
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)