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.
02 13:52 E 13 12.87 Overcast OVC009 13.3 10.6 15.6 12.8 84% 76.99 1026.2
02 12:52 E 17 4.83 Overcast OVC007 12.8 11.1 90% 77.01 1026.5
02 11:52 E 20 4.02 Overcast OVC004 13.3 11.7 90% 76.96 1025.9
02 10:52 NE 20 2.41 Fog/Mist OVC004 13.3 12.8 97% 76.96 1025.8
02 09:52 E 15 2.41 Fog/Mist OVC003 14.4 13.9 97% 76.91 1025.1
02 08:52 E 19 2.41 Fog/Mist OVC003 15 14.4 96% 76.84 1024.4
02 07:52 N 11 16.09 Overcast OVC008 15.6 13.3 17.8 15.6 86% 76.78 1023.4
02 06:52 NW 9 16.09 Overcast OVC009 15.6 13.9 90% 76.71 1022.4
02 05:52 NE 9 16.09 Overcast OVC008 17.2 16.1 93% 76.61 1021.2
02 04:52 N 7 16.09 Mostly Cloudy SCT008 BKN120 16.7 16.1 96% 76.58 1020.7
02 03:52 NE 13 16.09 Partly Cloudy SCT120 17.2 16.1 93% 76.56 1020.3
02 02:52 N 11 16.09 Partly Cloudy SCT090 17.8 16.1 90% 76.56 1020.4
02 01:52 SE 7 16.09 Overcast OVC090 16.7 15.6 20 16.1 93% 76.58 1020.8
02 00:52 N 9 16.09 Mostly Cloudy BKN110 BKN160 18.3 16.1 87% 76.53 1019.9
01 23:52 Calm 16.09 Mostly Cloudy BKN120 BKN250 17.8 15.6 87% 76.43 1018.8
01 22:52 E 6 16.09 Mostly Cloudy BKN120 BKN250 18.3 16.7 90% 76.4 1018.2
01 21:52 N 11 16.09 Mostly Cloudy SCT090 SCT140 BKN250 20 17.2 84% 76.4 1018.2
01 20:52 Calm 16.09 Mostly Cloudy FEW070 SCT110 BKN150 BKN250 17.8 17.2 96% 76.35 1017.7
01 19:52 SE 9 16.09 Mostly Cloudy FEW070 SCT100 BKN150 BKN250 18.3 17.2 30 18.3 93% 76.28 1016.8 0.25
01 18:52 S 9 16.09 Mostly Cloudy FEW044 SCT070 SCT090 BKN140 BKN250 20 18.3 90% 76.3 1017.1 0.25
01 17:52 SE 15 16.09 Thunderstorm FEW020 SCT070CB BKN090 BKN130 BKN250 21.7 16.7 73% 76.23 1016.1
01 16:52 S 13 16.09 Thunderstorm FEW060 BKN085CB BKN150 BKN250 28.3 13.9 41% 28 76.23 1016.0
01 15:52 Vrbl 9 16.09 Thunderstorm FEW050 BKN080CB BKN100 BKN150 BKN250 29.4 12.8 36% 29 76.23 1016.0
01 14:52 Vrbl 9 16.09 Mostly Cloudy SCT070 BKN090 BKN150 BKN250 29.4 13.3 37% 29 76.3 1016.8
01 13:52 Vrbl 7 G 28 16.09 Partly Cloudy SCT060 SCT250 28.9 13.3 28.9 18.3 38% 28 76.35 1017.7
01 12:52 SW 17 G 33 16.09 Partly Cloudy FEW080 SCT250 28.3 13.3 40% 28 76.38 1018.0
01 11:52 SW 20 16.09 Partly Cloudy FEW080 SCT250 26.7 13.3 44% 27 76.4 1018.4
01 10:52 Vrbl 11 16.09 Partly Cloudy FEW090 SCT250 25.6 13.9 48% 26 76.43 1018.6
01 09:52 S 11 16.09 Mostly Cloudy FEW100 BKN250 22.8 14.4 59% 76.4 1018.3
01 08:52 Calm 16.09 Mostly Cloudy FEW080 FEW120 BKN250 21.1 13.9 64% 76.4 1018.4
01 07:52 Calm 16.09 Mostly Cloudy FEW070 FEW120 BKN250 18.3 13.3 21.7 16.7 73% 76.35 1017.7
01 06:52 Calm 16.09 Mostly Cloudy FEW120 BKN190 17.8 13.3 75% 76.28 1016.5
01 05:52 SW 13 16.09 Mostly Cloudy FEW120 SCT180 BKN200 18.3 13.3 73% 76.23 1015.8
01 04:52 SW 20 16.09 Mostly Cloudy FEW120 SCT180 BKN200 20 13.3 65% 76.17 1015.2
01 03:52 SW 24 G 43 16.09 Mostly Cloudy SCT180 BKN200 21.1 12.8 59% 76.15 1014.8
01 02:52 S 24 16.09 Mostly Cloudy SCT180 BKN200 21.1 12.8 59% 76.15 1015.0
01 01:52 SW 24 16.09 Mostly Cloudy BKN180 21.7 12.2 26.1 21.7 55% 76.15 1014.9
01 00:52 SW 24 G 37 16.09 Mostly Cloudy BKN180 BKN200 22.2 12.2 53% 76.15 1015.0
31 23:52 S 26 G 41 16.09 Fair CLR 22.8 12.2 51% 76.15 1014.8
31 22:52 S 26 G 39 16.09 Partly Cloudy FEW150 SCT250 23.3 12.2 50% 76.1 1014.3
31 21:52 S 24 G 39 16.09 Partly Cloudy FEW150 SCT250 23.9 12.2 48% 25 76.1 1014.4
31 20:52 S 22 16.09 Partly Cloudy FEW150 SCT250 25 12.2 45% 26 76.12 1014.6
31 19:52 SW 24 G 46 16.09 Mostly Cloudy SCT150 BKN250 26.1 12.2 28.3 25.6 42% 26 76.1 1014.3
31 18:52 S 28 G 48 16.09 Partly Cloudy FEW070 SCT250 26.7 12.2 41% 27 76.07 1014.1
31 17:52 S 33 G 52 16.09 Partly Cloudy and Breezy FEW060 SCT250 27.8 12.2 38% 27 76.07 1013.8
31 16:52 S 33 G 56 16.09 Mostly Cloudy and Breezy FEW070 BKN250 27.8 12.2 38% 27 76.1 1014.2
31 15:52 S 26 G 50 16.09 Mostly Cloudy FEW060 BKN250 27.2 12.8 41% 27 76.17 1015.1
31 14:52 S 22 G 39 16.09 Mostly Cloudy FEW060 BKN250 27.8 12.8 40% 27 76.23 1015.8
31 13:52 S 22 G 41 16.09 Mostly Cloudy FEW060 FEW080 BKN250 26.7 12.8 26.7 15.6 42% 27 76.33 1017.2
31 11:52 S 28 G 43 16.09 Mostly Cloudy FEW050 FEW200 BKN250 24.4 12.2 47% 26 76.43 1018.9
31 10:52 S 26 G 41 16.09 Mostly Cloudy FEW120 BKN250 22.2 11.7 52% 76.48 1019.4
31 09:52 S 24 G 37 16.09 Mostly Cloudy FEW120 BKN250 19.4 10.6 57% 76.53 1020.1
31 08:52 S 19 G 35 16.09 Mostly Cloudy FEW120 BKN250 17.2 10 63% 76.53 1020.3
31 07:52 S 20 G 33 16.09 Mostly Cloudy FEW170 BKN250 15.6 10 17.2 15 70% 76.56 1020.3
31 06:52 S 19 16.09 Mostly Cloudy FEW120 SCT170 BKN250 15 9.4 69% 76.53 1020.0
31 05:52 S 20 16.09 Partly Cloudy FEW120 SCT170 SCT250 15.6 9.4 67% 76.5 1019.7
31 04:52 S 19 16.09 Fair CLR 16.1 10 67% 76.43 1018.9
31 03:52 S 20 16.09 Fair CLR 16.7 10 65% 76.43 1018.7
31 02:52 S 24 G 44 16.09 A Few Clouds FEW120 16.7 10 65% 76.43 1018.8
31 01:52 S 28 G 44 16.09 A Few Clouds FEW120 17.2 10 18.9 17.2 63% 76.48 1019.5
31 00:52 S 28 G 39 16.09 Fair CLR 17.2 10.6 65% 76.5 1020.0
30 23:52 S 28 G 41 16.09 A Few Clouds FEW120 17.8 10 60% 76.53 1020.2
30 22:52 SW 30 G 46 16.09 Mostly Cloudy BKN120 18.9 10.6 59% 76.53 1020.3
30 21:52 SW 26 G 39 16.09 Overcast OVC120 18.9 10.6 59% 76.58 1021.0
30 20:52 SW 24 G 41 16.09 Mostly Cloudy BKN110 18.9 10 56% 76.58 1021.0
30 19:52 SW 22 G 37 16.09 A Few Clouds FEW090 FEW150 18.9 10.6 21.7 16.7 59% 76.58 1020.8
30 18:52 S 26 G 43 16.09 Partly Cloudy FEW085 SCT140 19.4 10.6 57% 76.56 1020.7
30 17:52 S 28 G 52 16.09 Mostly Cloudy FEW080 BKN140 20.6 10.6 53% 76.56 1020.4
30 16:52 SW 30 G 46 16.09 Mostly Cloudy FEW080 BKN140 19.4 10 55% 76.58 1020.9
30 15:52 SW 22 G 41 16.09 Mostly Cloudy SCT070 BKN120 20 9.4 51% 76.61 1021.2
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)