Weather observations for the past three days for
Washington/Dulles International Airport, DC
Imperial (Metric)
Date Time (est) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
05 22:52 E 3 1.50 Light Snow Fog/Mist OVC004 28.9 28 96% 30 1016.2
05 21:52 NE 5 4.00 Fog/Mist BKN006 OVC014 28.9 28 96% 25 30.01 1016.7
05 20:52 NE 3 4.00 Fog/Mist BKN008 OVC014 28.9 28 96% 30.04 1017.4
05 19:52 Calm 8.00 Overcast FEW008 OVC010 30 27 88% 30.04 1017.7
05 18:52 NE 3 8.00 Overcast OVC011 28.9 26.1 30 28.9 89% 30.04 1017.6
05 17:52 E 5 10.00 Overcast FEW010 OVC015 28.9 25 85% 25 30.05 1017.9
05 16:52 NE 3 10.00 Overcast OVC016 30 25 82% 30.07 1018.4
05 15:52 E 5 10.00 Overcast BKN019 OVC022 30 25 82% 26 30.07 1018.6
05 14:52 NE 5 9.00 Overcast SCT012 OVC022 30 25 82% 26 30.08 1018.9
05 13:52 E 3 5.00 Fog/Mist BKN014 OVC022 30 26.1 85% 30.11 1019.7
05 12:52 NE 5 3.00 Fog/Mist BKN012 BKN017 OVC024 28.9 25 30 27 85% 25 30.13 1020.5 0.05
05 11:52 E 5 1.50 Light Snow Fog/Mist SCT009 BKN023 OVC029 28.9 26.1 89% 25 30.17 1021.8 0.01
05 10:52 Calm 1.50 Light Snow Fog/Mist BKN010 OVC022 28 25 88% 30.22 1023.5 0.01
05 09:52 Calm 1.50 Light Snow Fog/Mist SCT008 SCT014 OVC035 28 24.1 85% 30.24 1024.5 0.01 0.03
05 08:52 E 5 1.75 Light Snow Fog/Mist FEW010 BKN029 OVC039 27 25 92% 22 30.26 1025.0 0.01
05 07:52 E 3 2.00 Light Snow Fog/Mist BKN029 OVC038 27 23 85% 30.28 1025.7 0.01
05 06:52 E 7 2.00 Light Snow OVC029 27 21.9 30.9 27 81% 20 30.27 1025.3
05 05:52 E 5 9.00 Light Snow OVC036 28.9 16 58% 25 30.24 1024.5
05 04:52 SE 6 8.00 Light Snow OVC036 28.9 16 58% 23 30.27 1025.3
05 03:52 E 3 10.00 Overcast BKN055 OVC070 30 10 43% 30.28 1025.5
05 02:52 NE 3 10.00 Overcast OVC065 30 9 41% 30.28 1025.6
05 01:52 NE 9 10.00 Overcast BKN070 OVC085 30.9 10.9 43% 24 30.26 1024.9
05 00:52 N 9 10.00 Overcast BKN070 OVC090 30.9 10.9 35.1 30.9 43% 24 30.25 1024.7
04 23:52 N 9 10.00 Overcast OVC100 32 10.9 41% 25 30.29 1025.8
04 22:52 N 10 10.00 Overcast BKN120 OVC200 33.1 12.9 43% 26 30.28 1025.5
04 21:52 NW 7 10.00 Overcast BKN140 OVC200 34 17.1 50% 29 30.28 1025.5
04 20:52 NW 7 10.00 Mostly Cloudy BKN140 BKN200 33.1 19 56% 28 30.27 1025.4
04 19:52 W 7 10.00 Overcast OVC140 34 19 54% 29 30.26 1025.0
04 18:52 NW 9 10.00 Overcast FEW100 OVC160 34 19 43 34 54% 27 30.22 1023.6
04 17:52 NW 7 10.00 Mostly Cloudy FEW100 BKN160 35.1 19.9 54% 30 30.21 1023.2
04 16:52 NW 8 10.00 Mostly Cloudy FEW100 SCT150 BKN250 37 21 52% 32 30.2 1022.8
04 15:52 NW 18 G 26 10.00 Mostly Cloudy FEW048 SCT120 BKN200 39 21 48% 30 30.17 1021.8
04 14:52 NW 17 G 28 10.00 Mostly Cloudy FEW048 FEW120 BKN200 42.1 23 47% 34 30.17 1021.9
04 13:52 NW 21 G 32 10.00 Mostly Cloudy and Breezy FEW050 BKN160 BKN250 43 25 49% 35 30.15 1021.1
04 12:52 NW 18 G 32 10.00 Mostly Cloudy FEW044 BKN160 BKN250 42.1 25 43 23 51% 34 30.13 1020.6
04 11:52 NW 12 G 23 10.00 Mostly Cloudy SCT160 BKN250 43 25 49% 37 30.14 1020.7
04 09:52 W 3 10.00 Mostly Cloudy BKN110 BKN250 37.9 27 65% 30.13 1020.7
04 08:52 Calm 10.00 Mostly Cloudy BKN100 BKN250 33.1 28 82% 30.12 1020.1
04 07:52 Calm 10.00 Mostly Cloudy BKN110 BKN250 27 25 92% 30.11 1019.7
04 06:52 NW 3 10.00 Mostly Cloudy SCT090 BKN250 24.1 21.9 27 21 91% 30.08 1018.9
04 05:52 Calm 10.00 A Few Clouds FEW100 23 21 92% 30.06 1018.1
04 04:52 Calm 10.00 A Few Clouds FEW100 23 21.9 96% 30.08 1018.8
04 03:52 SE 5 10.00 Fair CLR 21.9 21 96% 16 30.08 1018.8
04 02:52 Calm 10.00 Fair CLR 24.1 23 96% 30.1 1019.3
04 01:52 NW 3 10.00 Fair CLR 27 24.1 89% 30.09 1019.0
04 00:52 Calm 10.00 A Few Clouds FEW200 25 23 32 25 92% 30.09 1019.0
03 23:52 Calm 10.00 Partly Cloudy SCT200 26.1 24.1 92% 30.1 1019.6
03 22:52 Calm 10.00 Partly Cloudy SCT200 30 26.1 85% 30.11 1019.6
03 21:52 Calm 10.00 Partly Cloudy SCT200 27 24.1 89% 30.11 1019.9
03 20:52 Calm 10.00 Fair CLR 28.9 25 85% 30.11 1019.8
03 19:52 SE 3 10.00 Fair CLR 28.9 25 85% 30.11 1019.8
03 18:52 Calm 10.00 Fair CLR 30.9 25 44.1 30 79% 30.1 1019.7
03 17:52 Calm 10.00 Fair CLR 36 26.1 67% 30.09 1019.2
03 16:52 Calm 10.00 A Few Clouds FEW250 36 26.1 67% 30.08 1018.7
03 15:52 NW 5 10.00 Fair CLR 43 25 49% 41 30.07 1018.5
03 14:52 Calm 10.00 A Few Clouds FEW060 43 24.1 47% 30.08 1018.7
03 13:52 W 9 10.00 A Few Clouds FEW039 FEW250 42.1 24.1 49% 37 30.07 1018.5
03 12:52 N 5 10.00 A Few Clouds FEW035 FEW250 42.1 25 43 30 51% 40 30.09 1019.1
03 11:52 NW 7 10.00 A Few Clouds FEW035 FEW250 42.1 25 51% 38 30.11 1019.8
03 10:52 NW 10 10.00 A Few Clouds FEW035 FEW250 41 24.1 51% 35 30.14 1020.8
03 09:52 NW 10 10.00 A Few Clouds FEW032 FEW250 39 24.1 55% 33 30.13 1020.3
03 08:52 NW 9 10.00 Partly Cloudy FEW032 SCT250 36 21.9 57% 30 30.12 1020.1
03 07:52 NW 3 10.00 Mostly Cloudy FEW032 BKN250 32 21.9 66% 30.1 1019.6
03 06:52 NW 7 10.00 A Few Clouds FEW032 FEW250 32 21 35.1 30.9 64% 26 30.07 1018.4
03 05:52 N 6 G 17 10.00 Fair CLR 32 19.9 61% 27 30.04 1017.3
03 04:52 NW 10 10.00 Fair CLR 33.1 21 61% 26 30.01 1016.2
03 03:52 NW 9 10.00 A Few Clouds FEW040 33.1 21 61% 26 30.02 1016.9
03 02:52 NW 8 10.00 Fair CLR 33.1 21.9 64% 27 30.01 1016.5
03 01:52 NW 8 10.00 Fair CLR 33.1 23 66% 27 30 1015.9
03 00:52 N 7 10.00 Overcast OVC034 35.1 25 39.9 35.1 67% 30 29.97 1015.1
02 23:52 NW 15 10.00 Overcast OVC034 36 26.1 67% 27 29.94 1013.9
Date Time (est) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)