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.
02 20:52 NE 6 10.00 Partly Cloudy SCT075 SCT250 71.1 57 61% 30.2 1022.3
02 19:52 E 7 10.00 Partly Cloudy SCT075 SCT250 73.9 55.9 81 73.9 54% 30.19 1021.9
02 18:52 NE 6 10.00 Mostly Cloudy SCT060 BKN250 75.9 55.9 50% 78 30.19 1022.0
02 17:52 NE 6 10.00 Mostly Cloudy SCT070 BKN250 79 55 44% 80 30.19 1022.0
02 16:52 N 10 10.00 Mostly Cloudy SCT065 BKN250 80.1 55.9 44% 80 30.2 1022.3
02 15:52 N 7 10.00 Mostly Cloudy SCT070 BKN250 80.1 54 41% 80 30.21 1022.8
02 14:52 N 6 10.00 Mostly Cloudy SCT055 BKN070 BKN250 79 55.9 45% 80 30.22 1023.1
02 13:52 N 7 10.00 Mostly Cloudy FEW050 BKN070 BKN250 77 55 79 66.9 47% 78 30.23 1023.6
02 12:52 N 8 G 18 10.00 Mostly Cloudy SCT060 BKN250 77 54 45% 78 30.24 1023.8
02 11:52 N 6 10.00 Mostly Cloudy SCT049 BKN250 77 57 50% 79 30.25 1024.0
02 10:52 Vrbl 6 10.00 Partly Cloudy FEW030 SCT250 73.9 59 60% 30.26 1024.5
02 09:52 N 7 10.00 Partly Cloudy FEW028 SCT150 SCT250 72 60.1 66% 30.27 1024.7
02 08:52 N 7 10.00 Partly Cloudy FEW120 SCT250 69.1 61 76% 30.28 1025.2
02 07:52 N 6 10.00 A Few Clouds FEW250 66.9 62.1 66.9 60.1 84% 30.27 1024.9
02 06:52 N 7 10.00 Fair CLR 64.9 62.1 90% 30.27 1024.7
02 05:52 Calm 10.00 A Few Clouds FEW020 FEW075 62.1 61 96% 30.25 1024.3
02 04:52 N 6 10.00 Partly Cloudy FEW020 SCT075 64.9 62.1 90% 30.24 1023.8
02 03:52 N 6 10.00 Partly Cloudy SCT020 SCT075 66 62.1 87% 30.23 1023.5
02 02:52 Calm 10.00 Mostly Cloudy BKN075 64 62.1 93% 30.23 1023.5
02 01:52 Calm 10.00 Mostly Cloudy FEW022 BKN075 66 64 71.1 66 93% 30.23 1023.6
02 00:52 NE 5 10.00 Overcast OVC075 66 63 90% 30.23 1023.5
01 23:52 NE 5 10.00 Mostly Cloudy BKN075 68 64 87% 30.23 1023.5
01 22:52 Calm 10.00 Mostly Cloudy BKN075 69.1 64 84% 30.24 1023.7
01 21:52 E 6 10.00 Mostly Cloudy BKN049 BKN060 70 63 79% 30.23 1023.7
01 20:52 E 6 10.00 Mostly Cloudy BKN036 BKN044 70 64 82% 30.23 1023.5
01 19:52 NE 8 10.00 Mostly Cloudy FEW030 BKN036 BKN047 71.1 64 72 71.1 79% 30.21 1022.8
01 18:52 NE 10 10.00 Overcast SCT022 OVC034 72 64 76% 30.19 1022.2
01 17:52 NE 10 10.00 Overcast SCT029 OVC034 72 64 76% 30.19 1022.0
01 16:52 NE 6 10.00 Overcast BKN030 OVC035 72 64.9 79% 30.19 1022.1
01 15:52 NE 6 10.00 Overcast SCT026 OVC032 72 64 76% 30.18 1021.8
01 14:52 NE 9 10.00 Overcast SCT015 OVC026 71.1 64 79% 30.17 1021.4
01 13:52 N 7 10.00 Overcast BKN013 OVC022 71.1 64.9 71.1 66 81% 30.18 1021.6 0.1
01 12:52 N 7 10.00 Overcast OVC013 69.1 64.9 87% 30.18 1021.7
01 11:52 NE 9 10.00 Overcast BKN010 OVC018 69.1 64.9 87% 30.18 1021.8
01 10:52 NE 10 3.00 Fog/Mist SCT007 OVC012 66.9 64 91% 30.16 1021.1 0.1
01 09:52 NE 10 10.00 Overcast BKN010 OVC018 66.9 64.9 93% 30.14 1020.3 0.01
01 08:52 N 9 3.00 Light Rain Fog/Mist BKN010 OVC019 66 64.9 96% 30.14 1020.2 0.09
01 07:52 N 10 G 22 4.00 Light Rain Fog/Mist OVC012 66.9 64 72 66.9 91% 30.13 1019.9 0.02 0.02
01 06:52 N 10 5.00 Light Rain Fog/Mist OVC014 68 64 87% 30.1 1019.0
01 05:52 N 14 G 23 10.00 Overcast OVC014 69.1 64 84% 30.07 1017.9
01 04:52 N 12 10.00 Overcast OVC014 70 64.9 84% 30.05 1017.3
01 03:52 N 8 G 18 10.00 Overcast OVC011 71.1 66.9 87% 30.03 1016.7
01 02:52 N 10 G 20 10.00 Overcast OVC010 71.1 68 90% 30.03 1016.4
01 01:52 N 10 10.00 Overcast OVC009 72 68 77 72 87% 30.02 1016.2
01 00:52 N 13 10.00 Overcast OVC010 73.9 70 88% 30.02 1016.1
31 23:52 N 10 10.00 Overcast BKN015 OVC025 75 71.1 88% 75 30 1015.6
31 22:52 NE 6 10.00 Overcast BKN015 OVC027 75.9 73 91% 76 30 1015.5
31 21:52 NE 7 10.00 Overcast SCT013 OVC019 75.9 73 91% 76 29.98 1014.8
31 20:52 N 6 10.00 Mostly Cloudy FEW020 SCT080 BKN180 75.9 73 91% 76 29.96 1014.3
31 19:52 NW 9 10.00 Mostly Cloudy FEW070 SCT120 BKN250 75.9 73 91 73 91% 76 29.94 1013.5 0.29
31 18:52 NE 7 10.00 Mostly Cloudy FEW015 SCT050 SCT110 BKN180 BKN250 75.9 73.9 94% 75 29.92 1013.0 0.19
31 17:52 NW 12 G 26 2.00 Heavy Rain Fog/Mist FEW021CB BKN035 OVC050 73.9 72 94% 29.97 1014.6 0.1
31 16:52 SE 9 10.00 Mostly Cloudy SCT037 BKN100 BKN180 BKN250 81 75 82% 87 29.89 1011.9
31 15:52 S 23 G 35 10.00 Overcast and Breezy FEW030 BKN039 BKN075 OVC180 81 75.9 85% 87 29.89 1011.8
31 14:52 Vrbl 7 10.00 Mostly Cloudy BKN035 BKN080 BKN180 88 75.9 68% 99 29.88 1011.6
31 13:52 S 9 10.00 Mostly Cloudy BKN035 BKN048 BKN075 91 73.9 91.9 80.1 57% 101 29.88 1011.5
31 12:52 SW 10 10.00 Mostly Cloudy BKN028 BKN044 BKN060 91.9 75.9 60% 104 29.91 1012.6
31 11:52 SW 8 10.00 Mostly Cloudy BKN027 BKN034 BKN055 89.1 75.9 65% 100 29.94 1013.4
31 10:52 S 5 10.00 Mostly Cloudy SCT025 BKN050 BKN110 87.1 75.9 70% 98 29.94 1013.6
31 09:52 S 6 10.00 Mostly Cloudy BKN065 BKN110 84.9 77 77% 95 29.94 1013.5
31 08:52 S 6 10.00 Mostly Cloudy FEW025 BKN065 BKN140 82 75.9 82% 89 29.95 1013.9
31 07:52 SW 3 10.00 Mostly Cloudy SCT150 BKN250 80.1 75.9 82 77 87% 85 29.96 1014.1
31 06:52 SW 5 10.00 Mostly Cloudy BKN150 BKN250 78.1 75 90% 81 29.95 1013.8
31 05:52 Calm 10.00 Mostly Cloudy BKN150 BKN250 78.1 75 90% 81 29.94 1013.3
31 04:52 SW 5 10.00 Overcast OVC150 79 75.9 90% 83 29.95 1013.7
31 03:52 SW 6 10.00 Overcast OVC140 79 77 94% 83 29.95 1013.8
31 02:52 S 5 10.00 Partly Cloudy SCT170 80.1 77 90% 86 29.96 1014.0
31 01:52 S 5 10.00 Overcast OVC150 81 78.1 87.1 81 91% 89 29.96 1014.1
31 00:52 S 5 10.00 Overcast OVC150 82 78.1 88% 91 29.97 1014.4
30 23:52 S 6 10.00 Mostly Cloudy BKN150 82 77 85% 90 29.98 1014.8
30 22:52 Calm 10.00 Mostly Cloudy BKN160 82.9 75.9 79% 91 29.99 1015.2
30 21:52 S 3 10.00 Overcast BKN120 OVC250 84 75.9 77% 93 29.98 1015.0
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)