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.
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
30 14:52 SW 30 G 44 16.09 Mostly Cloudy SCT070 BKN100 18.9 10 56% 76.68 1022.2
30 13:52 SW 30 G 48 16.09 Mostly Cloudy BKN090 BKN110 16.7 9.4 16.7 10.6 62% 76.76 1023.3 0.08
30 12:52 S 17 G 35 16.09 Overcast BKN095 OVC120 15 9.4 69% 76.84 1024.1
30 11:52 SW 20 G 41 16.09 Overcast FEW070 OVC090 13.3 9.4 77% 76.91 1025.2
30 10:52 S 20 G 35 16.09 Mostly Cloudy FEW070 BKN090 11.1 9.4 89% 76.96 1026.2 0.05 0.08
30 08:52 S 19 11.27 Light Rain BKN075 OVC085 11.1 7.2 77% 76.96 1026.0 0.03
30 07:52 S 17 G 28 16.09 Light Rain BKN070 OVC085 11.1 5.6 12.8 10.6 69% 76.96 1026.0
30 06:52 S 22 G 37 16.09 Overcast OVC095 11.7 3.3 57% 76.89 1025.1
30 05:52 S 19 G 35 16.09 Overcast BKN170 OVC240 11.7 2.2 52% 76.86 1024.7
30 04:52 S 20 G 39 16.09 Mostly Cloudy BKN110 11.7 1.7 51% 76.86 1024.5
30 03:52 S 19 G 35 16.09 Overcast OVC120 11.7 0 45% 76.89 1025.0
30 02:52 S 20 16.09 Overcast BKN150 OVC180 12.2 -1.7 38% 76.91 1025.2
30 01:52 S 15 G 31 16.09 Overcast SCT120 OVC150 12.8 -5 14.4 12.8 29% 76.96 1025.8
30 00:52 S 24 16.09 Overcast BKN130 OVC150 12.8 -7.2 24% 76.96 1025.9
29 23:52 S 24 G 39 16.09 Overcast FEW120 OVC140 13.3 -7.2 24% 76.99 1026.5
29 22:52 S 22 G 35 16.09 Mostly Cloudy BKN160 BKN250 13.3 -5.6 27% 77.04 1027.0
29 21:52 S 15 16.09 Mostly Cloudy BKN160 BKN250 13.3 -3.9 30% 77.06 1027.3
29 20:52 S 19 G 33 16.09 Mostly Cloudy FEW150 BKN220 BKN250 13.9 -3.9 29% 77.04 1027.1
29 19:52 S 15 16.09 Mostly Cloudy FEW120 BKN200 BKN250 14.4 -3.9 16.7 13.9 28% 77.06 1027.4
29 18:52 S 19 G 31 16.09 Mostly Cloudy BKN200 BKN250 15 -3.9 27% 77.09 1027.7
29 17:52 S 28 G 39 16.09 Mostly Cloudy FEW100 FEW200 BKN250 15.6 -3.3 27% 77.11 1028.1
29 16:52 S 30 G 43 16.09 Mostly Cloudy FEW200 BKN250 15.6 -3.3 27% 77.11 1028.3
29 15:52 S 26 G 43 16.09 Mostly Cloudy FEW200 BKN250 16.1 -2.8 27% 77.19 1029.2
29 14:52 S 33 G 46 16.09 Partly Cloudy and Breezy FEW200 SCT250 15.6 -3.3 27% 77.27 1030.2
29 13:52 S 33 G 50 16.09 A Few Clouds and Breezy FEW250 15 -3.3 15 0 28% 77.37 1031.5
29 12:52 S 31 G 52 16.09 A Few Clouds FEW250 13.3 -4.4 29% 77.47 1032.9
29 11:52 S 24 G 48 16.09 Mostly Cloudy SCT160 BKN250 12.8 -4.4 30% 77.55 1034.1
29 10:52 S 26 G 39 16.09 Mostly Cloudy FEW170 BKN250 10.6 -4.4 35% 77.6 1034.8
29 09:52 S 30 G 48 16.09 Mostly Cloudy BKN160 BKN250 8.3 -5.6 37% 5 77.65 1035.2
29 08:52 S 15 16.09 Mostly Cloudy SCT160 BKN250 3.3 -4.4 57% 0 77.65 1035.4
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)