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.
11 08:52 N 9 1.75 Rain Fog/Mist BKN007 OVC013 61 60.1 97% 30.14 1020.4 0.25
11 07:52 N 8 2.50 Rain Fog/Mist BKN007 BKN011 OVC017 61 60.1 62.1 60.1 97% 30.15 1020.9 0.32 0.95
11 06:52 NE 8 3.00 Rain Fog/Mist BKN006 OVC010 60.1 59 96% 30.17 1021.5 0.16
11 05:52 NE 9 3.00 Rain Fog/Mist BKN007 BKN012 OVC020 60.1 57.9 93% 30.18 1021.7 0.2
11 04:52 NE 10 5.00 Light Rain Fog/Mist SCT007 BKN012 OVC020 60.1 57.9 93% 30.2 1022.5 0.08 0.27
11 03:52 NE 12 5.00 Rain Fog/Mist OVC050 60.1 57.9 93% 30.22 1023.2 0.12
11 02:52 NE 10 7.00 Rain BKN045 OVC055 61 57.9 90% 30.26 1024.4 0.07
11 01:52 NE 10 10.00 Light Rain BKN055 OVC075 62.1 57 64.9 62.1 84% 30.27 1024.8
11 00:52 E 10 10.00 Overcast OVC090 62.1 55.9 80% 30.3 1025.8
10 23:52 E 13 10.00 Light Rain OVC100 63 55 76% 30.32 1026.4
10 22:52 E 9 10.00 Overcast FEW050 OVC100 64 55 73% 30.33 1027.0
10 21:52 E 5 10.00 Overcast OVC095 64 53.1 68% 30.34 1027.4
10 20:52 E 9 10.00 Overcast FEW043 OVC110 64.9 51.1 61% 30.33 1026.9
10 19:52 E 9 10.00 Mostly Cloudy FEW043 FEW050 BKN120 64.9 51.1 70 64.9 61% 30.33 1027.0
10 18:52 E 7 10.00 Mostly Cloudy FEW050 FEW080 SCT120 BKN150 BKN200 66 51.1 59% 30.33 1026.9
10 17:52 E 9 10.00 Mostly Cloudy FEW050 FEW080 SCT110 BKN130 BKN200 66.9 51.1 57% 30.33 1026.9
10 16:52 E 9 10.00 Mostly Cloudy FEW050 FEW110 BKN130 BKN160 69.1 48.9 49% 30.34 1027.3
10 15:52 E 5 10.00 Mostly Cloudy FEW050 FEW100 BKN130 69.1 48 47% 30.36 1028.0
10 14:52 E 6 10.00 Overcast FEW050 BKN140 OVC200 70 48.9 47% 30.36 1027.8
10 13:52 E 7 10.00 Overcast BKN160 OVC200 69.1 50 70 53.1 51% 30.38 1028.8
10 12:52 E 7 10.00 Overcast BKN190 OVC250 70 50 49% 30.4 1029.2
10 11:52 E 6 10.00 Mostly Cloudy BKN200 BKN250 69.1 52 55% 30.41 1029.8
10 10:52 Calm 10.00 Overcast BKN230 OVC250 64 51.1 63% 30.42 1030.0
10 09:52 Calm 10.00 Overcast BKN220 OVC250 59 48.9 69% 30.4 1029.5
10 08:52 NE 6 10.00 Overcast OVC250 55.9 51.1 84% 30.38 1028.6
10 07:52 NW 5 10.00 Overcast OVC250 53.1 48.9 53.1 48.9 86% 30.38 1028.6
10 06:52 NW 6 10.00 Mostly Cloudy BKN250 52 48.9 89% 30.36 1027.9
10 05:52 Calm 10.00 Mostly Cloudy BKN250 52 48.9 89% 30.32 1026.5
10 04:52 NW 3 10.00 Partly Cloudy SCT250 51.1 48.9 92% 30.3 1025.9
10 03:52 Calm 10.00 Mostly Cloudy BKN250 50 48 93% 30.29 1025.5
10 02:52 Calm 10.00 Partly Cloudy SCT250 51.1 48 89% 30.3 1026.0
10 01:52 Calm 10.00 Mostly Cloudy FEW020 BKN250 51.1 48.9 62.1 51.1 92% 30.31 1026.0
10 00:52 Calm 10.00 Mostly Cloudy BKN250 53.1 48.9 86% 30.29 1025.5
09 23:52 Calm 10.00 Overcast OVC250 54 48.9 83% 30.29 1025.5
09 22:52 Calm 10.00 Overcast OVC250 55 50 83% 30.28 1025.3
09 21:52 Calm 10.00 Overcast OVC250 55.9 48 75% 30.27 1024.9
09 20:52 Calm 10.00 Overcast OVC250 57.9 50 75% 30.26 1024.6
09 19:52 Calm 10.00 Overcast OVC250 60.1 48 75.9 60.1 65% 30.24 1024.2
09 18:52 SE 5 10.00 Overcast OVC250 64.9 46.9 52% 30.23 1023.4
09 17:52 E 3 10.00 Overcast OVC250 69.1 46 44% 30.21 1022.8
09 16:52 NE 3 10.00 Mostly Cloudy BKN250 73 43 34% 30.19 1022.1
09 15:52 W 9 10.00 Mostly Cloudy FEW220 BKN250 73.9 42.1 32% 30.18 1021.8
09 14:52 Vrbl 5 10.00 Mostly Cloudy FEW160 BKN250 75 43 32% 77 30.18 1021.9
09 13:52 N 10 8.00 Mostly Cloudy BKN250 75 37.9 75 46 26% 77 30.2 1022.4
09 12:52 W 9 G 20 10.00 Mostly Cloudy BKN250 73.9 42.1 32% 30.21 1022.9
09 11:52 W 6 10.00 Mostly Cloudy BKN250 71.1 46.9 42% 30.22 1023.1
09 10:52 Calm 9.00 Mostly Cloudy BKN250 66 48.9 54% 30.22 1023.3
09 09:52 Calm 10.00 Mostly Cloudy BKN250 60.1 48 65% 30.22 1023.2
09 08:52 Calm 10.00 Mostly Cloudy BKN250 53.1 46.9 80% 30.2 1022.7
09 07:52 Calm 10.00 Mostly Cloudy BKN250 46 44.1 52 45 93% 30.18 1021.8
09 06:52 Calm 10.00 Mostly Cloudy BKN250 46 44.1 93% 30.17 1021.5
09 05:52 Calm 10.00 Mostly Cloudy BKN250 46.9 44.1 90% 30.14 1020.6
09 04:52 SE 3 10.00 Mostly Cloudy BKN250 46.9 45 93% 30.12 1019.8
09 03:52 Calm 10.00 Mostly Cloudy BKN250 48 45 89% 30.12 1019.6
09 02:52 Calm 10.00 Partly Cloudy SCT250 50 45 83% 30.12 1019.7
09 01:52 Calm 10.00 Partly Cloudy SCT250 51.1 45 70 50 80% 30.11 1019.4
09 00:52 Calm 10.00 Partly Cloudy SCT250 51.1 46 83% 30.1 1019.1
08 23:52 Calm 10.00 A Few Clouds FEW250 55 45 69% 30.1 1019.1
08 22:52 Calm 10.00 A Few Clouds FEW250 55.9 46 70% 30.09 1018.8
08 21:52 NW 3 10.00 A Few Clouds FEW250 59 44.1 58% 30.07 1018.0
08 20:52 W 5 10.00 A Few Clouds FEW250 63 43 48% 30.05 1017.4
08 19:52 NW 5 10.00 A Few Clouds FEW250 69.1 41 79 69.1 36% 30.02 1016.3
08 18:52 W 9 10.00 A Few Clouds FEW250 73.9 39 28% 29.98 1015.1
08 17:52 W 7 10.00 A Few Clouds FEW070 75.9 41 29% 77 29.96 1014.4
08 16:52 W 13 G 21 10.00 A Few Clouds FEW070 78.1 41 27% 78 29.95 1013.8
08 15:52 W 10 10.00 A Few Clouds FEW065 79 44.1 29% 79 29.94 1013.6
08 14:52 W 14 G 22 10.00 A Few Clouds FEW065 78.1 43 29% 78 29.94 1013.6
08 13:52 W 12 G 22 10.00 A Few Clouds FEW065 78.1 44.1 78.1 54 30% 78 29.96 1014.2
08 12:52 W 10 G 17 10.00 A Few Clouds FEW060 75.9 44.1 32% 77 29.97 1014.7
08 11:52 W 12 10.00 A Few Clouds FEW060 75 44.1 33% 77 29.98 1015.0
08 10:52 W 12 10.00 A Few Clouds FEW070 73 50 44% 29.97 1014.8
08 09:52 W 15 10.00 A Few Clouds FEW050 70 54 57% 29.96 1014.3
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)