Weather observations for the past three days for
Washington/Dulles International Airport, DC
Metric (Imperial)
Date Time (est) 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.
05 22:52 Calm 16.09 A Few Clouds FEW120 -6.1 -12.2 62% 76 1013.6
05 21:52 NW 9 16.09 A Few Clouds FEW120 -3.9 -11.7 55% -7 76 1013.5
05 20:52 NW 6 16.09 Partly Cloudy FEW100 SCT200 -5 -11.7 60% 76.05 1014.1
05 19:52 E 6 16.09 A Few Clouds FEW100 -3.9 -12.2 53% 76.1 1015.0
05 18:52 NE 7 16.09 A Few Clouds FEW140 FEW200 -2.8 -11.7 0.6 -2.8 51% -5 76.15 1015.5
05 17:52 N 9 16.09 Partly Cloudy FEW120 SCT200 -0.6 -12.8 40% -3 76.17 1015.8
05 16:52 Calm 16.09 A Few Clouds FEW120 FEW200 0 -12.8 38% 76.15 1015.7
05 15:52 NW 11 16.09 Fair CLR 0.6 -12.2 38% -2 76.17 1016.0
05 14:52 NW 11 16.09 Fair CLR 0 -12.2 40% -3 76.2 1016.3
05 13:52 N 9 G 31 16.09 Fair CLR -0.6 -12.2 42% -3 76.25 1017.0
05 12:52 NW 7 16.09 Fair CLR -1.1 -12.2 -1.1 -11.7 43% -3 76.35 1018.1
05 11:52 NW 11 16.09 A Few Clouds FEW110 -1.7 -13.3 41% -5 76.48 1019.9
05 10:52 N 13 16.09 Fair CLR -2.8 -13.3 45% -7 76.58 1021.2
05 09:52 N 11 16.09 Fair CLR -3.9 -12.8 50% -8 76.61 1021.7
05 08:52 NW 6 16.09 Fair CLR -6.1 -12.2 62% 76.63 1021.9
05 06:52 NW 6 16.09 A Few Clouds FEW050 -11.1 -13.9 -4.4 -11.1 80% 76.61 1021.5
05 05:52 NW 7 16.09 Fair CLR -8.9 -12.8 74% -12 76.58 1021.2
05 04:52 Calm 16.09 Fair CLR -9.4 -12.8 77% 76.58 1021.2
05 03:52 NW 6 16.09 Fair CLR -8.9 -12.8 74% 76.58 1021.4
05 02:52 NW 6 16.09 Fair CLR -7.8 -12.8 68% 76.63 1022.1
05 01:52 NW 9 16.09 Partly Cloudy SCT200 -6.7 -11.7 68% -11 76.66 1022.3
05 00:52 Calm 16.09 Fair CLR -5 -11.1 0 -5 63% 76.71 1022.8
04 23:52 N 6 16.09 Mostly Cloudy FEW100 BKN200 -2.8 -12.2 49% 76.73 1023.4
04 22:52 N 13 16.09 Overcast OVC100 -2.2 -12.2 47% -6 76.73 1023.2
04 21:52 N 13 16.09 Mostly Cloudy SCT100 BKN170 BKN250 -1.7 -11.7 47% -6 76.76 1023.6
04 20:52 NE 13 16.09 Mostly Cloudy SCT100 BKN170 BKN250 -1.7 -11.1 49% -6 76.76 1023.6
04 19:52 N 11 16.09 Mostly Cloudy FEW100 BKN160 BKN250 -1.1 -10 51% -5 76.76 1023.5
04 18:52 N 13 16.09 Mostly Cloudy FEW100 SCT180 BKN250 0 -10.6 1.7 0 45% -4 76.76 1023.7
04 17:52 NW 9 16.09 Mostly Cloudy FEW100 SCT180 BKN250 0 -10.6 45% -3 76.73 1023.3
04 16:52 N 13 16.09 Mostly Cloudy SCT190 BKN250 1.1 -10.6 42% -2 76.71 1023.0
04 15:52 N 15 16.09 Mostly Cloudy FEW100 SCT190 BKN250 1.1 -10.6 42% -3 76.68 1022.6
04 14:52 NW 11 16.09 Mostly Cloudy FEW038 BKN250 1.1 -10 44% -2 76.68 1022.5
04 13:52 N 11 16.09 Mostly Cloudy FEW038 BKN250 1.7 -10 42% -1 76.71 1023.0
04 12:52 N 13 G 28 16.09 Mostly Cloudy FEW038 BKN250 1.1 -9.4 1.7 -1.1 46% -2 76.76 1023.7
04 11:52 N 15 16.09 Mostly Cloudy FEW038 BKN250 1.1 -8.3 50% -3 76.84 1024.6
04 10:52 NW 13 16.09 A Few Clouds FEW038 0.6 -8.9 49% -3 76.89 1025.2
04 09:52 N 19 16.09 Mostly Cloudy BKN039 0 -8.3 54% -5 76.86 1025.1
04 08:52 N 15 16.09 A Few Clouds FEW150 0 -7.8 56% -4 76.86 1024.9
04 07:52 N 17 16.09 Mostly Cloudy SCT045 BKN180 -0.6 -6.7 64% -5 76.76 1023.7
04 06:52 N 11 16.09 Mostly Cloudy SCT027 BKN034 0 -5.6 0 0 66% -3 76.76 1023.4
04 05:52 N 7 16.09 Overcast BKN027 OVC034 0 -5.6 66% -2 76.71 1022.8
04 04:52 N 15 16.09 Overcast OVC030 0 -6.1 64% -4 76.66 1022.3
04 03:52 N 15 16.09 Overcast OVC039 0 -6.1 64% -4 76.63 1021.8
04 02:52 N 13 16.09 Overcast OVC041 0 -6.1 64% -4 76.61 1021.5
04 01:52 N 11 16.09 Overcast OVC044 0 -5.6 66% -3 76.58 1021.1
04 00:52 N 11 16.09 Overcast OVC055 0 -5.6 1.7 -1.1 66% -3 76.58 1021.2
03 23:52 NE 7 16.09 Overcast OVC050 0.6 -5 66% -1 76.58 1021.2
03 22:52 NE 6 16.09 Overcast OVC055 1.1 -5.6 61% 76.58 1021.1
03 21:52 E 6 16.09 Overcast OVC050 0.6 -5.6 64% 76.58 1021.3
03 20:52 Calm 16.09 Overcast OVC055 -0.6 -5 72% 76.58 1021.1
03 19:52 Calm 16.09 Mostly Cloudy BKN050 BKN140 0 -6.1 64% 76.56 1021.0
03 18:52 Calm 16.09 A Few Clouds FEW100 FEW250 1.7 -6.7 4.4 1.7 54% 76.56 1020.9
03 17:52 SE 7 16.09 Partly Cloudy FEW100 SCT250 2.8 -6.7 50% 1 76.56 1021.0
03 16:52 Calm 16.09 Mostly Cloudy SCT100 BKN250 4.4 -7.2 43% 76.56 1020.9
03 15:52 S 15 16.09 Overcast BKN100 OVC200 4.4 -6.7 45% 1 76.56 1021.0
03 14:52 Vrbl 6 16.09 Mostly Cloudy FEW033 BKN120 BKN200 3.9 -6.7 46% 76.56 1021.0
03 13:52 Vrbl 6 16.09 Partly Cloudy FEW050 SCT250 3.9 -6.7 46% 76.58 1021.3
03 12:52 Calm 16.09 Partly Cloudy FEW050 SCT250 3.3 -6.7 3.3 -4.4 48% 76.63 1021.8
03 11:52 Vrbl 6 16.09 A Few Clouds FEW250 2.8 -6.7 50% 76.71 1023.0
03 10:52 Calm 16.09 Mostly Cloudy BKN050 BKN250 1.7 -6.1 57% 76.78 1024.0
03 09:52 Calm 16.09 Mostly Cloudy BKN050 BKN250 1.1 -7.2 54% 76.81 1024.2
03 08:52 Calm 16.09 Mostly Cloudy BKN050 BKN250 -2.2 -8.3 63% 76.78 1023.9
03 07:52 Calm 16.09 Mostly Cloudy BKN055 -4.4 -8.9 71% 76.73 1023.5
03 06:52 Calm 16.09 Overcast OVC055 -3.9 -9.4 -2.2 -5 66% 76.71 1022.9
03 05:52 Calm 16.09 Overcast OVC050 -3.9 -10 63% 76.68 1022.6
03 04:52 NW 7 16.09 Overcast OVC050 -4.4 -9.4 68% -7 76.68 1022.6
03 03:52 NW 11 16.09 Mostly Cloudy BKN055 -3.9 -10 63% -8 76.66 1022.3
03 02:52 SE 7 16.09 Overcast OVC050 -3.9 -9.4 66% -7 76.63 1022.0
03 01:52 Calm 16.09 Overcast OVC050 -3.9 -10 63% 76.66 1022.1
03 00:52 SE 6 16.09 Overcast OVC050 -5 -10 -3.3 -6.1 68% 76.63 1022.0
02 23:52 Calm 16.09 Overcast OVC055 -3.9 -10.6 60% 76.66 1022.3
Date Time (est) 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)