Weather observations for the past three days for
Washington/Dulles International Airport, DC
Imperial (Metric)
Date Time (edt) 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.
29 02:52 Calm 10.00 Mostly Cloudy FEW140 BKN250 71.1 69.1 94% 30 1015.4
29 01:52 Calm 10.00 Partly Cloudy FEW160 SCT250 72 70 82 72 94% 30 1015.6
29 00:52 Calm 10.00 Partly Cloudy FEW080 FEW160 SCT250 73 70 90% 30.02 1016.1
28 23:52 Calm 10.00 Mostly Cloudy FEW080 FEW160 BKN250 73.9 70 88% 30.02 1016.2
28 22:52 S 3 10.00 Mostly Cloudy SCT120 BKN160 BKN220 75 72 90% 74 30.02 1016.1
28 21:52 Calm 10.00 Mostly Cloudy FEW040 FEW120 BKN220 77 72 85% 78 30.02 1016.4
28 20:52 NW 10 10.00 Overcast FEW029 BKN035CB BKN120 BKN160 OVC210 78.1 72 82% 80 30.02 1016.2
28 19:52 W 5 10.00 Mostly Cloudy FEW038 SCT047 BKN110 82 77 90 82 85% 90 30 1015.6 0.01 0.01
28 18:52 S 6 10.00 Thunderstorm FEW038CB SCT120 BKN160 BKN250 84 75.9 77% 93 29.99 1015.3
28 17:52 S 6 10.00 Mostly Cloudy SCT040CB SCT120 BKN160 BKN250 87.1 75 67% 97 29.99 1015.0
28 16:52 S 8 10.00 Partly Cloudy FEW040 SCT250 90 73.9 59% 99 29.98 1014.8
28 15:52 Vrbl 3 10.00 Partly Cloudy FEW030 SCT250 88 73.9 63% 97 30 1015.5
28 14:52 Vrbl 6 10.00 A Few Clouds FEW030 87.1 73.9 65% 95 30.03 1016.5
28 13:52 SW 9 10.00 Partly Cloudy SCT024 84.9 73.9 86 72 70% 92 30.06 1017.5
28 12:52 S 8 10.00 Partly Cloudy SCT020 82.9 73.9 74% 89 30.07 1017.9
28 11:52 Vrbl 6 10.00 Mostly Cloudy BKN017 BKN021 81 73 77% 86 30.08 1018.4
28 10:52 S 7 10.00 Overcast OVC013 77 72 85% 78 30.11 1019.3
28 09:52 S 7 10.00 Overcast OVC012 75.9 72 88% 76 30.11 1019.2
28 08:52 Calm 10.00 NULL NULL 73.9 71.1 91% 30.11 1019.4
28 07:52 Calm 10.00 Overcast BKN007 OVC012 72 70 72 70 94% 30.11 1019.3
28 06:52 SE 6 10.00 Mostly Cloudy BKN004 BKN009 71.1 70 96% 30.09 1018.7
28 05:52 Calm 1.25 Fog/Mist OVC003 70 70 100% 30.1 1019.0
28 04:52 Calm 1.25 Fog/Mist OVC003 70 70 100% 30.09 1018.8
28 03:52 S 3 1.50 Fog/Mist OVC003 70 69.1 97% 30.09 1018.6
28 02:52 Calm 1.75 Fog/Mist OVC004 70 69.1 97% 30.11 1019.6
28 01:52 Calm 6.00 Fog/Mist OVC004 70 69.1 70 69.1 97% 30.12 1019.8
28 00:52 S 3 4.00 Fog/Mist OVC004 70 69.1 97% 30.15 1020.8
27 23:52 S 3 3.00 Fog/Mist OVC004 70 69.1 97% 30.16 1021.3
27 22:52 E 6 2.50 Fog/Mist OVC006 70 69.1 97% 30.16 1021.0
27 21:52 SE 5 2.50 Fog/Mist OVC005 70 69.1 97% 30.17 1021.3
27 20:52 E 7 3.00 Fog/Mist OVC006 70 68 93% 30.15 1020.7
27 19:52 E 6 10.00 Overcast OVC007 70 68 70 69.1 93% 30.13 1020.2
27 18:52 E 7 10.00 Overcast OVC007 70 68 93% 30.14 1020.3
27 17:52 E 6 10.00 Overcast OVC007 70 66.9 90% 30.13 1020.2
27 16:52 E 8 7.00 Overcast OVC006 70 68 93% 30.15 1020.7
27 15:52 E 9 9.00 Light Rain OVC007 70 66.9 90% 30.15 1020.5
27 13:52 E 5 7.00 Overcast OVC009 70 66.9 70 66.9 90% 30.18 1021.6 0.02
27 12:52 E 7 7.00 Light Rain OVC007 70 66.9 90% 30.18 1021.6 0.01
27 11:52 E 3 7.00 Light Rain OVC008 69.1 66.9 93% 30.18 1021.8 0.01
27 10:52 E 6 6.00 Fog/Mist OVC006 69.1 66 90% 30.18 1021.7
27 09:52 E 7 6.00 Fog/Mist OVC007 68 66 93% 30.17 1021.4
27 08:52 E 6 3.00 Fog/Mist OVC006 68 66 93% 30.16 1021.2
27 07:52 E 6 4.00 Fog/Mist OVC004 66.9 66 73.9 66.9 97% 30.15 1020.6
27 06:52 E 8 3.00 Fog/Mist OVC004 68 66.9 96% 30.13 1020.0
27 05:52 NE 12 G 20 6.00 Fog/Mist OVC004 69.1 68 96% 30.1 1019.0
27 04:52 E 9 4.00 Fog/Mist OVC003 71.1 70 96% 30.08 1018.1
27 03:52 E 5 10.00 Overcast BKN009 OVC013 73.9 72 94% 30.07 1017.9
27 02:52 NE 7 10.00 Light Rain BKN012 BKN050 OVC100 73.9 72 94% 30.07 1018.0
27 01:52 Calm 10.00 Light Rain SCT009 BKN070 OVC100 73.9 72 86 73.9 94% 30.09 1018.4 0.07
27 00:52 SE 3 10.00 Thunderstorm Light Rain FEW050CB BKN080 OVC140 73.9 73 97% 30.08 1018.1 0.05
26 23:52 E 8 10.00 Light Rain FEW050CB BKN120 OVC150 75 72 90% 74 30.05 1017.3 0.02
26 22:52 SE 6 10.00 Thunderstorm Light Rain SCT050CB BKN080 BKN120 75.9 70 82% 77 30.08 1018.2
26 21:52 W 8 10.00 Thunderstorm FEW047CB SCT120 BKN180 BKN250 75.9 69.1 79% 77 30.04 1016.7
26 20:52 S 9 10.00 Thunderstorm SCT050CB BKN120 BKN250 82.9 72 70% 88 30.02 1016.0
26 19:52 NW 8 10.00 Mostly Cloudy BKN050CB BKN180 BKN250 84.9 75 93.9 84.9 72% 93 29.98 1014.8
26 18:52 NE 6 10.00 Mostly Cloudy FEW050CB SCT180 BKN250 89.1 73.9 61% 98 29.96 1014.3
26 17:52 Calm 10.00 Mostly Cloudy SCT050CB SCT180 BKN250 93 73 52% 102 29.97 1014.3
26 16:52 NE 9 10.00 Mostly Cloudy SCT050CB BKN200 89.1 72 57% 96 29.96 1014.2
26 15:52 N 5 10.00 Mostly Cloudy BKN045CB BKN180 93 73 52% 102 29.97 1014.6
26 14:52 N 6 10.00 Mostly Cloudy BKN045 BKN180 91.9 73 54% 101 29.99 1015.1
26 13:52 SE 3 10.00 Partly Cloudy SCT050 SCT150 91.9 73 91.9 80.1 54% 101 30.01 1015.7
26 12:52 Calm 10.00 A Few Clouds FEW050 FEW250 90 73 58% 98 30.02 1016.2
26 11:52 Calm 10.00 A Few Clouds FEW250 89.1 73 59% 97 30.04 1016.9
26 10:52 NW 6 10.00 A Few Clouds FEW250 88 73 61% 96 30.05 1017.1
26 09:52 N 5 10.00 A Few Clouds FEW110 FEW250 84.9 72 65% 91 30.05 1017.0
26 08:52 Vrbl 3 10.00 A Few Clouds FEW250 82.9 73 72% 89 30.05 1017.2
26 07:52 N 5 10.00 A Few Clouds FEW250 80.1 72 80.1 71.1 76% 84 30.04 1016.9
26 06:52 Calm 10.00 A Few Clouds FEW100 FEW250 75 72 90% 74 30.04 1016.9
26 05:52 Calm 10.00 A Few Clouds FEW100 FEW250 72 70 94% 30.03 1016.6
26 04:52 Calm 10.00 Partly Cloudy SCT250 71.1 70 96% 30.03 1016.6
26 03:52 Calm 10.00 Partly Cloudy SCT250 75.9 70 82% 77 30.03 1016.6
Date Time (edt) 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)