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 02:52 Calm 16.09 Mostly Cloudy BKN075 17.8 16.7 93% 76.78 1023.5
02 01:52 Calm 16.09 Mostly Cloudy FEW022 BKN075 18.9 17.8 21.7 18.9 93% 76.78 1023.6
02 00:52 NE 7 16.09 Overcast OVC075 18.9 17.2 90% 76.78 1023.5
01 23:52 NE 7 16.09 Mostly Cloudy BKN075 20 17.8 87% 76.78 1023.5
01 22:52 Calm 16.09 Mostly Cloudy BKN075 20.6 17.8 84% 76.81 1023.7
01 21:52 E 9 16.09 Mostly Cloudy BKN049 BKN060 21.1 17.2 79% 76.78 1023.7
01 20:52 E 9 16.09 Mostly Cloudy BKN036 BKN044 21.1 17.8 82% 76.78 1023.5
01 19:52 NE 13 16.09 Mostly Cloudy FEW030 BKN036 BKN047 21.7 17.8 22.2 21.7 79% 76.73 1022.8
01 18:52 NE 17 16.09 Overcast SCT022 OVC034 22.2 17.8 76% 76.68 1022.2
01 17:52 NE 17 16.09 Overcast SCT029 OVC034 22.2 17.8 76% 76.68 1022.0
01 16:52 NE 9 16.09 Overcast BKN030 OVC035 22.2 18.3 79% 76.68 1022.1
01 15:52 NE 9 16.09 Overcast SCT026 OVC032 22.2 17.8 76% 76.66 1021.8
01 14:52 NE 15 16.09 Overcast SCT015 OVC026 21.7 17.8 79% 76.63 1021.4
01 13:52 N 11 16.09 Overcast BKN013 OVC022 21.7 18.3 21.7 18.9 81% 76.66 1021.6 0.25
01 12:52 N 11 16.09 Overcast OVC013 20.6 18.3 87% 76.66 1021.7
01 11:52 NE 15 16.09 Overcast BKN010 OVC018 20.6 18.3 87% 76.66 1021.8
01 10:52 NE 17 4.83 Fog/Mist SCT007 OVC012 19.4 17.8 91% 76.61 1021.1 0.25
01 09:52 NE 17 16.09 Overcast BKN010 OVC018 19.4 18.3 93% 76.56 1020.3 0.03
01 08:52 N 15 4.83 Light Rain Fog/Mist BKN010 OVC019 18.9 18.3 96% 76.56 1020.2 0.23
01 07:52 N 17 G 35 6.44 Light Rain Fog/Mist OVC012 19.4 17.8 22.2 19.4 91% 76.53 1019.9 0.05 0.05
01 06:52 N 17 8.05 Light Rain Fog/Mist OVC014 20 17.8 87% 76.45 1019.0
01 05:52 N 22 G 37 16.09 Overcast OVC014 20.6 17.8 84% 76.38 1017.9
01 04:52 N 19 16.09 Overcast OVC014 21.1 18.3 84% 76.33 1017.3
01 03:52 N 13 G 30 16.09 Overcast OVC011 21.7 19.4 87% 76.28 1016.7
01 02:52 N 17 G 31 16.09 Overcast OVC010 21.7 20 90% 76.28 1016.4
01 01:52 N 17 16.09 Overcast OVC009 22.2 20 25 22.2 87% 76.25 1016.2
01 00:52 N 20 16.09 Overcast OVC010 23.3 21.1 88% 76.25 1016.1
31 23:52 N 17 16.09 Overcast BKN015 OVC025 23.9 21.7 88% 24 76.2 1015.6
31 22:52 NE 9 16.09 Overcast BKN015 OVC027 24.4 22.8 91% 24 76.2 1015.5
31 21:52 NE 11 16.09 Overcast SCT013 OVC019 24.4 22.8 91% 24 76.15 1014.8
31 20:52 N 9 16.09 Mostly Cloudy FEW020 SCT080 BKN180 24.4 22.8 91% 24 76.1 1014.3
31 19:52 NW 15 16.09 Mostly Cloudy FEW070 SCT120 BKN250 24.4 22.8 32.8 22.8 91% 24 76.05 1013.5 0.74
31 18:52 NE 11 16.09 Mostly Cloudy FEW015 SCT050 SCT110 BKN180 BKN250 24.4 23.3 94% 24 76 1013.0 0.48
31 17:52 NW 19 G 43 3.22 Heavy Rain Fog/Mist FEW021CB BKN035 OVC050 23.3 22.2 94% 76.12 1014.6 0.25
31 16:52 SE 15 16.09 Mostly Cloudy SCT037 BKN100 BKN180 BKN250 27.2 23.9 82% 30 75.92 1011.9
31 15:52 S 37 G 56 16.09 Overcast and Breezy FEW030 BKN039 BKN075 OVC180 27.2 24.4 85% 31 75.92 1011.8
31 14:52 Vrbl 11 16.09 Mostly Cloudy BKN035 BKN080 BKN180 31.1 24.4 68% 37 75.9 1011.6
31 13:52 S 15 16.09 Mostly Cloudy BKN035 BKN048 BKN075 32.8 23.3 33.3 26.7 57% 38 75.9 1011.5
31 12:52 SW 17 16.09 Mostly Cloudy BKN028 BKN044 BKN060 33.3 24.4 60% 40 75.97 1012.6
31 11:52 SW 13 16.09 Mostly Cloudy BKN027 BKN034 BKN055 31.7 24.4 65% 38 76.05 1013.4
31 10:52 S 7 16.09 Mostly Cloudy SCT025 BKN050 BKN110 30.6 24.4 70% 36 76.05 1013.6
31 09:52 S 9 16.09 Mostly Cloudy BKN065 BKN110 29.4 25 77% 35 76.05 1013.5
31 08:52 S 9 16.09 Mostly Cloudy FEW025 BKN065 BKN140 27.8 24.4 82% 32 76.07 1013.9
31 07:52 SW 6 16.09 Mostly Cloudy SCT150 BKN250 26.7 24.4 27.8 25 87% 30 76.1 1014.1
31 06:52 SW 7 16.09 Mostly Cloudy BKN150 BKN250 25.6 23.9 90% 27 76.07 1013.8
31 05:52 Calm 16.09 Mostly Cloudy BKN150 BKN250 25.6 23.9 90% 27 76.05 1013.3
31 04:52 SW 7 16.09 Overcast OVC150 26.1 24.4 90% 28 76.07 1013.7
31 03:52 SW 9 16.09 Overcast OVC140 26.1 25 94% 28 76.07 1013.8
31 02:52 S 7 16.09 Partly Cloudy SCT170 26.7 25 90% 30 76.1 1014.0
31 01:52 S 7 16.09 Overcast OVC150 27.2 25.6 30.6 27.2 91% 31 76.1 1014.1
31 00:52 S 7 16.09 Overcast OVC150 27.8 25.6 88% 33 76.12 1014.4
30 23:52 S 9 16.09 Mostly Cloudy BKN150 27.8 25 85% 32 76.15 1014.8
30 22:52 Calm 16.09 Mostly Cloudy BKN160 28.3 24.4 79% 33 76.17 1015.2
30 21:52 S 6 16.09 Overcast BKN120 OVC250 28.9 24.4 77% 34 76.15 1015.0
30 20:52 S 11 16.09 Mostly Cloudy SCT120 BKN250 30 23.9 70% 35 76.1 1014.2
30 19:52 S 11 16.09 Mostly Cloudy FEW065 BKN120 BKN250 30.6 22.2 34.4 30.6 61% 34 76.07 1013.7
30 18:52 S 11 16.09 Mostly Cloudy FEW050 BKN250 31.1 22.8 61% 35 76.05 1013.6
30 17:52 S 13 16.09 Mostly Cloudy SCT049 BKN250 33.3 22.8 54% 38 76.07 1013.7
30 16:52 SE 7 16.09 Mostly Cloudy SCT055 BKN250 32.2 22.2 56% 36 76.07 1013.6
30 15:52 Vrbl 9 16.09 Mostly Cloudy SCT055 BKN250 33.9 22.8 52% 39 76.12 1014.4
30 14:52 S 9 16.09 Mostly Cloudy SCT050 BKN250 33.9 21.1 47% 37 76.15 1014.8
30 13:52 Vrbl 7 16.09 Partly Cloudy SCT050 SCT075 33.9 21.7 33.9 27.2 49% 38 76.2 1015.5
30 12:52 S 6 16.09 Mostly Cloudy BKN050 BKN070 31.7 21.7 55% 35 76.23 1015.9
30 11:52 Calm 16.09 Partly Cloudy SCT045 SCT065 31.7 21.1 53% 35 76.28 1016.4
30 10:52 S 9 16.09 Partly Cloudy FEW040 FEW140 SCT250 31.1 21.7 57% 34 76.28 1016.5
30 09:52 Calm 16.09 Mostly Cloudy SCT140 BKN250 31.1 23.3 63% 36 76.3 1016.7
30 08:52 N 6 16.09 A Few Clouds FEW180 FEW250 28.9 23.3 72% 33 76.33 1017.0
30 07:52 Calm 16.09 A Few Clouds FEW170 FEW250 26.7 23.9 26.7 22.8 85% 29 76.33 1017.1
30 06:52 Calm 11.27 A Few Clouds FEW250 23.3 22.8 97% 76.28 1016.4
30 05:52 Calm 14.48 A Few Clouds FEW100 FEW250 23.3 22.8 97% 76.23 1015.7
30 04:52 Calm 16.09 A Few Clouds FEW050 23.3 22.8 97% 76.2 1015.6
30 03:52 Calm 16.09 Fair CLR 23.9 23.3 96% 23 76.2 1015.5
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)