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.
10 06:52 Calm 10.00 A Few Clouds FEW100 FEW250 51.1 50 96% 29.9 1012.2
10 05:52 Calm 10.00 A Few Clouds FEW250 48 46.9 96% 29.87 1011.5
10 04:52 Calm 10.00 Fair CLR 48 48 100% 29.87 1011.4
10 03:52 Calm 10.00 Fair CLR 48.9 48 97% 29.86 1010.9
10 02:52 Calm 10.00 Fair CLR 50 48.9 96% 29.84 1010.5
10 01:52 W 3 10.00 Fair CLR 51.1 48.9 71.1 51.1 92% 29.83 1010.1
10 00:52 Calm 10.00 Fair CLR 53.1 50 89% 29.84 1010.2
09 23:52 Calm 10.00 A Few Clouds FEW100 55.9 52 87% 29.83 1009.9
09 22:52 Calm 10.00 A Few Clouds FEW100 57.9 51.1 78% 29.83 1009.9
09 21:52 Calm 10.00 Partly Cloudy SCT100 59 50 72% 29.81 1009.3
09 20:52 SE 3 10.00 Fair CLR 61 50 67% 29.79 1008.5
09 19:52 Calm 10.00 Fair CLR 71.1 48.9 75.9 68 46% 29.78 1008.1
09 18:52 Calm 10.00 Mostly Cloudy BKN070 BKN120 73 48.9 43% 29.77 1007.8
09 17:52 SW 6 10.00 Overcast OVC110 73.9 48.9 41% 29.77 1007.8
09 16:52 W 6 10.00 Mostly Cloudy FEW050 BKN120 73.9 48 40% 29.76 1007.6
09 15:52 SW 6 10.00 Mostly Cloudy FEW049 FEW080 BKN150 72 51.1 48% 29.77 1008.0
09 14:52 SW 10 G 18 10.00 Mostly Cloudy SCT055 BKN080 BKN150 70 51.1 51% 29.8 1008.9
09 13:52 W 5 10.00 Overcast FEW050 BKN075 BKN120 OVC180 68 48.9 70 57.9 51% 29.83 1009.8
09 12:52 SW 9 10.00 Mostly Cloudy SCT046 BKN075 BKN250 68 48.9 51% 29.83 1010.1
09 11:52 Vrbl 6 10.00 Mostly Cloudy FEW050 BKN070 BKN085 BKN250 68 48 49% 29.84 1010.3
09 10:52 Vrbl 6 10.00 Mostly Cloudy FEW050 FEW110 SCT150 BKN250 64.9 46 51% 29.86 1010.8
09 09:52 S 9 10.00 Overcast FEW043 BKN075 BKN090 OVC150 60.1 44.1 56% 29.86 1011.2
09 08:52 SW 6 10.00 Overcast FEW060 BKN085 BKN110 OVC170 59 43 56% 29.87 1011.4
09 07:52 S 12 10.00 Overcast SCT090 BKN110 OVC180 57.9 41 59 55.9 53% 29.86 1011.0
09 06:52 S 12 10.00 Overcast BKN110 OVC180 57.9 39.9 51% 29.85 1010.6
09 05:52 S 9 10.00 Mostly Cloudy BKN110 BKN180 57 39.9 53% 29.85 1010.5
09 04:52 S 10 10.00 Overcast OVC110 57 39.9 53% 29.86 1010.9
09 03:52 S 9 10.00 Overcast OVC120 57.9 39 50% 29.87 1011.3
09 02:52 S 10 10.00 Mostly Cloudy BKN120 59 37.9 46% 29.87 1011.2
09 01:52 S 9 10.00 Mostly Cloudy BKN120 59 37.9 66.9 59 46% 29.88 1011.6
09 00:52 S 12 G 22 10.00 Mostly Cloudy BKN140 60.1 37.9 44% 29.88 1011.5
08 23:52 S 10 10.00 A Few Clouds FEW120 60.1 37.9 44% 29.88 1011.7
08 22:52 S 7 10.00 A Few Clouds FEW120 60.1 37.9 44% 29.89 1012.1
08 21:52 S 6 10.00 A Few Clouds FEW120 62.1 37.9 41% 29.89 1012.0
08 20:52 S 7 10.00 Partly Cloudy SCT110 64 37.9 38% 29.88 1011.8
08 19:52 S 9 10.00 Mostly Cloudy BKN100 BKN130 66.9 37.9 73 66.9 35% 29.87 1011.3
08 18:52 SW 7 10.00 Mostly Cloudy FEW090 BKN110 BKN130 69.1 36 30% 29.86 1011.0
08 17:52 SW 7 10.00 Mostly Cloudy BKN100 BKN120 70 33.1 26% 29.86 1011.1
08 16:52 W 6 10.00 Partly Cloudy FEW090 SCT100 70 32 25% 29.86 1011.1
08 15:52 W 6 G 18 10.00 Partly Cloudy FEW090 SCT110 71.1 32 24% 29.88 1011.8
08 14:52 W 15 G 31 10.00 Partly Cloudy SCT090 SCT120 71.1 32 24% 29.91 1012.6
08 13:52 W 10 G 22 10.00 Partly Cloudy FEW080 SCT250 68 32 70 53.1 26% 29.93 1013.2
08 12:52 W 10 G 20 10.00 Partly Cloudy SCT050 68 34 28% 29.95 1013.9
08 11:52 NW 17 G 24 10.00 A Few Clouds FEW050 66 34 30% 29.97 1014.7
08 10:52 W 12 G 21 10.00 A Few Clouds FEW100 63 33.1 33% 29.98 1015.3
08 09:52 SW 9 10.00 A Few Clouds FEW100 61 30.9 32% 29.99 1015.5
08 08:52 SW 6 10.00 A Few Clouds FEW090 FEW250 57.9 35.1 42% 30.01 1016.0
08 07:52 Calm 10.00 A Few Clouds FEW060 53.1 37 53.1 37 55% 30 1015.8
08 06:52 Calm 10.00 Fair CLR 41 35.1 79% 29.98 1015.1
08 05:52 Calm 10.00 Fair CLR 41 35.1 79% 29.96 1014.6
08 04:52 Calm 10.00 Fair CLR 39 34 82% 29.95 1014.3
08 03:52 NW 5 10.00 Fair CLR 48.9 34 56% 48 29.94 1013.8
08 02:52 NW 9 10.00 Fair CLR 51.1 35.1 54% 29.92 1012.9
08 01:52 NW 13 10.00 Fair CLR 52 37.9 57 45 59% 29.9 1012.5
08 00:52 SE 3 10.00 Fair CLR 45 43 93% 29.89 1012.3
07 23:52 Calm 10.00 Fair CLR 48.9 45 86% 29.87 1011.6
07 22:52 S 7 10.00 Fair CLR 51.1 45 80% 29.86 1011.2
07 21:52 S 8 10.00 A Few Clouds FEW090 53.1 45 74% 29.86 1011.0
07 20:52 S 9 10.00 Partly Cloudy FEW060 SCT090 54 44.1 69% 29.84 1010.2
07 19:52 SW 8 10.00 Partly Cloudy FEW060 SCT090 57 44.1 64.9 57 62% 29.81 1009.3
07 18:52 S 10 10.00 A Few Clouds FEW080 61 43 52% 29.79 1008.7
07 17:52 S 13 10.00 A Few Clouds FEW075 FEW100 62.1 43 50% 29.78 1008.4
07 16:52 S 8 10.00 Partly Cloudy FEW070 SCT100 63 42.1 47% 29.78 1008.4
07 15:52 Vrbl 6 10.00 Partly Cloudy SCT070 SCT100 63 36 37% 29.78 1008.5
07 14:52 Calm 10.00 Partly Cloudy FEW070 SCT100 62.1 34 35% 29.81 1009.3
07 13:52 Vrbl 5 10.00 Mostly Cloudy FEW080 BKN100 62.1 37.9 63 54 41% 29.83 1009.9
07 12:52 SE 7 10.00 Mostly Cloudy BKN095 BKN110 61 37 41% 29.86 1011.0
07 11:52 Vrbl 6 10.00 Mostly Cloudy FEW070 BKN090 57.9 34 41% 29.89 1011.9
07 10:52 N 7 10.00 Mostly Cloudy FEW055 BKN070 55.9 34 44% 29.9 1012.5
07 09:52 N 10 G 18 10.00 Overcast SCT047 OVC060 55 34 45% 29.92 1013.0
07 08:52 NW 10 10.00 Mostly Cloudy FEW020 BKN050 55 36 49% 29.91 1012.9
07 07:52 NW 9 10.00 Mostly Cloudy FEW020 BKN050 55 41 57 55 59% 29.91 1012.7
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)