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.
23 02:52 N 20 16.09 Mostly Cloudy BKN250 17.8 13.3 75% 75.31 1003.9
23 01:52 N 19 16.09 Mostly Cloudy BKN250 19.4 12.2 26.1 18.3 63% 75.31 1003.6
23 00:52 NW 13 16.09 Partly Cloudy SCT250 19.4 10 55% 75.13 1001.6
22 23:52 Calm 16.09 Partly Cloudy FEW120 SCT250 22.8 9.4 43% 75.18 1002.2
22 22:52 N 19 G 28 16.09 Partly Cloudy FEW060 SCT250 23.9 9.4 40% 25 75.23 1002.9
22 21:52 SW 19 16.09 Mostly Cloudy BKN250 25 8.9 36% 26 75.23 1002.9
22 20:52 S 15 16.09 Mostly Cloudy FEW180 BKN250 25.6 8.3 33% 26 75.23 1002.8
22 19:52 S 19 16.09 Mostly Cloudy FEW070 BKN250 26.1 7.8 30 25 31% 26 75.18 1002.1
22 18:52 S 24 G 41 16.09 Mostly Cloudy FEW070 BKN250 27.8 7.8 28% 27 75.16 1001.8
22 17:52 S 30 G 44 16.09 Partly Cloudy FEW070 SCT250 29.4 7.2 25% 28 75.16 1001.9
22 16:52 SW 31 G 52 16.09 Partly Cloudy FEW070 SCT250 30 6.7 23% 28 75.23 1002.7
22 15:52 S 28 16.09 Mostly Cloudy BKN250 28.9 9.4 30% 28 75.29 1003.6
22 14:52 S 19 16.09 Mostly Cloudy BKN250 27.2 10.6 35% 27 75.41 1005.3
22 13:52 S 19 16.09 Mostly Cloudy BKN250 25 11.1 25 8.3 42% 26 75.54 1006.8
22 12:52 S 17 16.09 Mostly Cloudy BKN250 22.2 11.1 50% 75.62 1007.7
22 11:52 S 13 16.09 Mostly Cloudy BKN250 18.9 10.6 59% 75.69 1009.0
22 10:52 S 13 16.09 Mostly Cloudy BKN250 16.1 10 67% 75.74 1009.7
22 09:52 SW 9 16.09 Mostly Cloudy BKN250 13.3 8.9 75% 75.79 1010.3
22 08:52 S 9 16.09 Mostly Cloudy BKN250 11.1 8.3 83% 75.82 1010.6
22 07:52 Calm 16.09 Mostly Cloudy BKN250 8.3 7.2 11.7 7.2 93% 75.84 1011.1
22 06:52 SE 6 16.09 A Few Clouds FEW150 FEW250 8.3 7.2 93% 75.84 1010.9
22 05:52 Calm 16.09 A Few Clouds FEW250 7.8 7.2 96% 75.82 1010.7
22 04:52 S 6 16.09 A Few Clouds FEW140 FEW250 10 7.8 86% 75.82 1010.7
22 03:52 SE 15 16.09 Mostly Cloudy BKN140 10.6 7.8 83% 75.84 1011.0
22 02:52 SE 15 16.09 Overcast OVC140 11.1 8.3 83% 75.92 1012.0
22 01:52 S 9 16.09 Overcast FEW130 OVC140 11.7 8.3 17.2 11.7 80% 76.02 1013.3
22 00:52 SE 9 16.09 Overcast OVC140 12.2 8.3 77% 76.02 1013.5
21 23:52 SE 15 16.09 Mostly Cloudy BKN140 14.4 7.2 62% 76 1013.1
21 22:52 S 7 16.09 Mostly Cloudy FEW095 BKN130 13.9 6.1 60% 76 1013.2
21 21:52 SE 6 16.09 Mostly Cloudy FEW095 BKN250 14.4 6.7 60% 76.02 1013.3
21 20:52 E 13 16.09 Mostly Cloudy SCT120 BKN250 16.1 7.8 58% 75.92 1012.2
21 19:52 Calm 16.09 Mostly Cloudy BKN120 BKN250 16.1 6.7 21.1 15 54% 75.87 1011.6
21 18:52 Calm 16.09 Mostly Cloudy FEW120 BKN250 18.9 7.2 47% 75.84 1011.0
21 17:52 Calm 16.09 Mostly Cloudy SCT120 BKN220 19.4 5 39% 75.84 1011.1
21 16:52 Calm 16.09 Partly Cloudy SCT250 20.6 4.4 35% 75.84 1011.1
21 15:52 Calm 16.09 Partly Cloudy SCT250 20.6 6.7 41% 75.9 1011.7
21 14:52 Vrbl 9 16.09 A Few Clouds FEW250 19.4 6.1 42% 75.95 1012.5
21 13:52 N 17 16.09 Partly Cloudy SCT250 18.3 6.7 18.9 7.8 47% 75.97 1012.9
21 12:52 N 9 16.09 Partly Cloudy SCT250 17.8 8.3 54% 76.02 1013.4
21 11:52 NW 13 16.09 Mostly Cloudy FEW030 BKN250 16.7 8.9 60% 76 1013.1
21 10:52 N 15 G 30 16.09 Partly Cloudy FEW020 SCT250 15.6 10 70% 75.97 1012.9
21 09:52 N 17 16.09 A Few Clouds FEW012 FEW250 13.3 10.6 84% 75.95 1012.2
21 08:52 NW 7 16.09 A Few Clouds FEW250 12.2 11.1 93% 75.87 1011.4
21 07:52 Calm 16.09 Shallow Fog FEW055 FEW250 7.8 7.8 11.7 7.2 100% 75.79 1010.6 0.18
21 06:52 Calm 16.09 Shallow Fog FEW055 8.9 8.9 100% 75.77 1010.0
21 05:52 Calm 16.09 Mostly Cloudy BKN055 9.4 9.4 100% 75.69 1008.9
21 04:52 Calm 16.09 Mostly Cloudy BKN055 10.6 10 96% 75.64 1008.4 0.18
21 03:52 SW 7 16.09 Mostly Cloudy BKN065 BKN100 11.1 10.6 97% 75.62 1008.0
21 02:52 S 7 16.09 Mostly Cloudy FEW050 BKN065 BKN180 11.1 10.6 97% 75.64 1008.3 0.18
21 01:52 S 6 16.09 Light Rain SCT047 BKN075 OVC110 12.2 10 16.7 11.7 87% 75.69 1009.0 0.43 0.51
21 00:52 E 6 16.09 Light Rain FEW055 BKN075 OVC100 12.2 10.6 90% 75.67 1008.6 0.03
20 23:52 N 28 G 41 16.09 Overcast FEW070 OVC080 15 8.3 64% 75.74 1009.7
20 22:52 SW 15 16.09 Overcast OVC085 15 8.9 67% 75.64 1008.3 0.03 0.05
20 21:52 S 19 16.09 Light Rain OVC075 14.4 9.4 72% 75.69 1009.0 0.03
20 20:52 S 17 16.09 Overcast OVC070 14.4 9.4 72% 75.72 1009.3
20 19:52 S 15 16.09 Light Rain OVC060 13.9 10.6 22.2 13.3 81% 75.74 1009.8 0.08 0.15
20 18:52 S 6 11.27 Light Rain OVC060 14.4 10 75% 75.79 1010.3 0.08
20 17:52 W 15 16.09 Light Rain BKN060 OVC100 20.6 4.4 35% 75.69 1009.2
20 16:52 S 19 G 43 16.09 Overcast BKN100 OVC200 21.7 2.8 29% 75.64 1008.5
20 15:52 S 30 G 59 16.09 Overcast FEW090 BKN140 OVC200 21.7 2.8 29% 75.74 1009.7
20 14:52 S 20 G 46 16.09 Overcast FEW090 BKN140 OVC200 21.7 3.3 30% 75.87 1011.2
20 13:52 S 22 G 35 16.09 Mostly Cloudy FEW140 BKN250 21.7 3.9 21.7 5 31% 76.02 1013.4
20 12:52 S 19 G 33 16.09 Mostly Cloudy FEW070 BKN250 19.4 3.9 36% 76.15 1015.1
20 11:52 S 19 16.09 Partly Cloudy FEW040 SCT250 16.7 3.3 41% 76.25 1016.5
20 10:52 S 15 16.09 A Few Clouds FEW250 13.3 2.8 49% 76.33 1017.6
20 09:52 S 11 16.09 A Few Clouds FEW030 FEW250 9.4 2.2 61% 8 76.43 1018.8
20 08:52 S 7 16.09 Partly Cloudy SCT250 7.2 1.7 68% 6 76.48 1019.5
20 07:52 S 7 16.09 Partly Cloudy SCT250 5 1.1 6.7 3.9 76% 4 76.48 1019.6
20 06:52 S 9 16.09 A Few Clouds FEW250 3.9 0.6 79% 2 76.48 1019.6
20 05:52 S 9 16.09 Fair CLR 5 0.6 73% 3 76.48 1019.6
20 04:52 S 9 16.09 Fair CLR 5 0.6 73% 3 76.48 1019.7
20 03:52 S 15 16.09 Fair CLR 5.6 0.6 71% 3 76.5 1020.1
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)