Weather observations for the past three days for
Washington/Dulles International Airport, DC
Metric (Imperial)
Date Time (edt) 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.
17 03:52 E 6 16.09 Fair CLR 15 13.9 93% 76.25 1016.4
17 02:52 Calm 16.09 A Few Clouds FEW060 FEW250 16.1 15 93% 76.25 1016.4
16 23:52 NW 7 16.09 Mostly Cloudy FEW060 BKN250 18.9 15 78% 76.23 1015.9
16 22:52 Calm 16.09 Mostly Cloudy FEW120 FEW150 BKN250 17.8 15 84% 76.2 1015.6
16 21:52 Calm 16.09 Mostly Cloudy FEW120 SCT150 BKN250 21.7 15.6 68% 76.17 1015.5
16 20:52 W 6 16.09 Overcast FEW060 BKN110 BKN180 OVC250 23.3 15 60% 76.15 1015.1
16 19:52 S 6 16.09 Overcast OVC095 23.3 15 29.4 23.3 60% 76.12 1014.8
16 18:52 SW 9 16.09 Mostly Cloudy FEW070 BKN110 BKN180 BKN250 25 14.4 52% 26 76.15 1015.1
16 17:52 W 26 G 43 16.09 Overcast FEW060 BKN075 BKN130 OVC250 26.1 12.8 44% 26 76.23 1015.9
16 16:52 SW 22 16.09 Mostly Cloudy FEW060 SCT080 BKN130 BKN250 28.9 11.7 34% 28 76.17 1015.3
16 15:52 S 20 G 39 16.09 Partly Cloudy FEW090 FEW180 SCT250 28.3 10.6 33% 27 76.2 1015.8
16 14:52 S 15 16.09 A Few Clouds FEW075 FEW250 27.8 9.4 32% 27 76.23 1016.1
16 13:52 S 22 G 33 16.09 A Few Clouds FEW075 FEW250 27.2 7.8 27.2 14.4 29% 27 76.28 1016.9
16 12:52 S 9 G 30 16.09 Partly Cloudy FEW075 SCT250 25 9.4 37% 26 76.38 1017.9
16 11:52 Vrbl 9 16.09 A Few Clouds FEW250 23.3 10 43% 76.4 1018.5
16 10:52 S 9 16.09 A Few Clouds FEW250 21.7 10.6 49% 76.45 1019.2
16 09:52 SW 9 16.09 A Few Clouds FEW070 FEW250 19.4 9.4 53% 76.5 1019.8
16 08:52 SW 9 16.09 Fair CLR 17.2 9.4 60% 76.5 1019.9
16 07:52 S 7 16.09 Fair CLR 14.4 9.4 14.4 7.2 72% 76.53 1020.0
16 06:52 Calm 16.09 A Few Clouds FEW050 FEW130 9.4 8.3 93% 76.5 1019.9
16 05:52 SE 6 16.09 A Few Clouds FEW050 7.8 7.2 96% 76.45 1019.3
16 03:52 Calm 16.09 Fair CLR 8.3 7.2 93% 76.4 1018.4
16 02:52 Calm 16.09 Fair CLR 9.4 7.8 90% 76.4 1018.6
16 01:52 Calm 16.09 A Few Clouds FEW180 10.6 7.8 21.1 10.6 83% 76.43 1018.9
16 00:52 Calm 16.09 Partly Cloudy SCT180 12.2 8.3 77% 76.43 1018.7
15 23:52 Calm 16.09 Partly Cloudy SCT180 11.7 8.3 80% 76.4 1018.4
15 22:52 Calm 16.09 Partly Cloudy SCT250 12.8 8.3 74% 76.4 1018.4
15 21:52 Calm 16.09 Partly Cloudy SCT250 14.4 7.8 65% 76.38 1018.1
15 20:52 Calm 16.09 Mostly Cloudy BKN140 BKN250 15 7.8 62% 76.28 1017.0
15 19:52 N 7 16.09 Mostly Cloudy FEW100 BKN140 BKN250 21.1 6.1 22.8 19.4 38% 76.23 1016.1
15 18:52 N 9 16.09 Mostly Cloudy FEW100 BKN140 BKN250 22.2 6.1 35% 76.17 1015.5
15 17:52 N 13 16.09 Mostly Cloudy FEW065 BKN140 BKN250 22.8 6.1 34% 76.17 1015.3
15 16:52 W 11 16.09 Mostly Cloudy FEW065 SCT140 BKN250 21.7 6.1 36% 76.17 1015.3
15 15:52 W 13 G 28 16.09 A Few Clouds FEW060 FEW250 21.1 6.1 38% 76.15 1015.2
15 14:52 NW 15 G 39 16.09 A Few Clouds FEW055 FEW250 20.6 6.1 39% 76.2 1015.8
15 13:52 W 22 G 33 16.09 Partly Cloudy SCT050 19.4 5.6 19.4 12.8 41% 76.25 1016.6
15 12:52 NW 19 G 35 16.09 Mostly Cloudy FEW047 BKN250 18.3 6.1 45% 76.25 1016.5
15 11:52 NW 13 16.09 Mostly Cloudy BKN044 BKN250 16.7 5.6 48% 76.25 1016.3
15 10:52 NW 22 G 39 16.09 A Few Clouds FEW040 16.1 5.6 50% 76.23 1016.2
15 09:52 NW 22 G 35 16.09 Partly Cloudy SCT039 13.9 5 55% 76.23 1016.0
15 07:52 NW 20 G 37 16.09 Mostly Cloudy SCT040 BKN090 13.3 5 13.3 11.1 57% 76.17 1015.4
15 06:52 NW 15 16.09 Mostly Cloudy BKN038 BKN085 12.2 5 62% 76.1 1014.5
15 04:52 NW 9 16.09 Overcast OVC041 11.7 5 64% 75.97 1012.7
15 03:52 NW 11 16.09 Overcast BKN041 OVC050 11.7 5.6 66% 75.97 1012.7
15 02:52 NW 6 16.09 Overcast OVC040 11.7 5.6 66% 75.97 1012.6
15 01:52 W 7 16.09 Overcast OVC043 11.1 5.6 13.3 10.6 69% 75.97 1012.8
15 00:52 W 15 16.09 Mostly Cloudy FEW043 BKN070 11.1 5 66% 76.02 1013.4
14 23:52 NW 11 16.09 Overcast OVC047 11.7 5 64% 76.02 1013.4
14 22:52 NW 19 16.09 Overcast SCT040 OVC047 12.2 5 62% 76.02 1013.4
14 21:52 NW 19 G 37 16.09 Overcast OVC042 12.2 4.4 59% 76.02 1013.3
14 20:52 NW 26 G 48 16.09 Overcast OVC044 12.8 4.4 57% 75.95 1012.4
14 19:52 W 24 16.09 Overcast OVC047 13.3 4.4 17.2 13.3 55% 75.9 1011.8
14 18:52 NW 17 16.09 Mostly Cloudy FEW030 BKN060 BKN085 13.9 4.4 53% 75.87 1011.3
14 17:52 NW 28 G 43 16.09 Overcast BKN055 OVC085 14.4 4.4 51% 75.82 1010.8
14 16:52 NW 28 G 46 16.09 Mostly Cloudy BKN055 BKN070 15 4.4 49% 75.82 1010.7
14 15:52 NW 28 G 41 16.09 Mostly Cloudy BKN065 15.6 3.9 46% 75.79 1010.5
14 14:52 NW 22 G 37 16.09 Mostly Cloudy BKN050 BKN080 16.7 4.4 44% 75.82 1010.8
14 13:52 NW 26 G 50 16.09 Mostly Cloudy BKN045 BKN080 14.4 3.9 16.1 11.7 50% 75.84 1011.0
14 12:52 NW 30 G 46 16.09 Mostly Cloudy BKN042 BKN080 13.9 4.4 53% 75.84 1011.1
14 11:52 NW 26 G 46 16.09 Mostly Cloudy BKN047 BKN080 16.1 5.6 50% 75.82 1010.8
14 10:52 NW 22 G 44 16.09 Mostly Cloudy SCT040 BKN080 BKN250 15.6 5.6 52% 75.82 1010.8
14 09:52 NW 28 G 43 16.09 Mostly Cloudy SCT032 BKN080 15 6.1 56% 75.82 1010.9
14 08:52 N 20 G 37 16.09 Partly Cloudy FEW025 SCT050 SCT080 13.3 6.7 65% 75.82 1010.8
14 07:52 NW 17 16.09 Mostly Cloudy SCT050 BKN070 BKN090 11.7 8.9 12.8 11.1 83% 75.79 1010.3 0.1
14 06:52 NW 11 16.09 Mostly Cloudy BKN050 BKN080 BKN110 11.7 9.4 86% 75.74 1009.7
14 05:52 NW 6 16.09 Partly Cloudy FEW085 SCT110 11.1 10.6 97% 75.69 1009.0
Date Time (edt) 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)