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.
03 17:52 S 7 10.00 Mostly Cloudy BKN250 70 50 49% 30.27 1024.9
03 16:52 SW 7 10.00 Mostly Cloudy BKN250 73 48.9 43% 30.27 1024.9
03 15:52 S 7 10.00 Mostly Cloudy BKN200 73 48.9 43% 30.28 1025.4
03 14:52 Calm 10.00 Mostly Cloudy BKN250 72 48 43% 30.31 1026.2
03 13:52 S 9 10.00 Mostly Cloudy FEW050 BKN250 72 48.9 72 48 44% 30.33 1027.0
03 12:52 Vrbl 3 10.00 Mostly Cloudy FEW050 BKN250 71.1 48 44% 30.37 1028.1
03 11:52 SE 7 10.00 Mostly Cloudy FEW050 BKN250 68 48 49% 30.39 1028.9
03 10:52 Vrbl 5 10.00 Mostly Cloudy BKN250 66 46.9 50% 30.41 1029.6
03 09:52 SW 6 10.00 Mostly Cloudy BKN250 63 50 63% 30.42 1029.9
03 08:52 Calm 9.00 Fair CLR 57 51.1 81% 30.42 1030.0
03 07:52 Calm 10.00 Partly Cloudy SCT250 48 46.9 52 45 96% 30.41 1029.7
03 06:52 Calm 10.00 A Few Clouds FEW250 46 45 96% 30.4 1029.4
03 05:52 Calm 10.00 Fair CLR 46.9 46 97% 30.4 1029.4
03 04:52 Calm 10.00 Fair CLR 46.9 46.9 100% 30.4 1029.3
03 03:52 Calm 10.00 Fair CLR 46.9 46 97% 30.4 1029.5
03 02:52 Calm 10.00 Fair CLR 48.9 48 97% 30.41 1029.7
03 01:52 S 3 10.00 Fair CLR 52 48.9 63 52 89% 30.43 1030.4
03 00:52 Calm 10.00 Fair CLR 55 48.9 80% 30.43 1030.4
02 23:52 SE 7 10.00 Fair CLR 57.9 50 75% 30.44 1030.6
02 22:52 SE 7 10.00 A Few Clouds FEW250 57.9 50 75% 30.44 1030.6
02 21:52 S 6 10.00 A Few Clouds FEW250 59 48.9 69% 30.43 1030.4
02 20:52 SE 6 10.00 A Few Clouds FEW050 FEW250 60.1 48 65% 30.42 1030.2
02 19:52 SE 7 10.00 Partly Cloudy FEW050 SCT250 62.1 46.9 73 61 58% 30.42 1029.9
02 18:52 SE 7 10.00 Partly Cloudy FEW050 SCT250 64.9 48 54% 30.4 1029.3
02 17:52 SE 8 10.00 Mostly Cloudy FEW050 BKN250 68 46.9 47% 30.39 1029.2
02 16:52 S 8 10.00 Mostly Cloudy SCT050 BKN250 70 46.9 44% 30.39 1029.0
02 15:52 E 10 10.00 Mostly Cloudy BKN050 BKN250 69.1 48.9 49% 30.39 1028.9
02 14:52 E 8 10.00 Mostly Cloudy BKN050 BKN250 69.1 48 47% 30.4 1029.4
02 13:52 E 6 10.00 Mostly Cloudy BKN048 BKN055 69.1 48 72 50 47% 30.42 1030.1
02 12:52 Vrbl 5 10.00 Mostly Cloudy SCT040 BKN049 70 48.9 47% 30.44 1030.6
02 11:52 Vrbl 3 10.00 Mostly Cloudy SCT039 BKN046 68 48.9 51% 30.44 1030.7
02 10:52 Vrbl 3 10.00 Partly Cloudy SCT035 SCT250 64.9 51.1 61% 30.45 1030.9
02 09:52 Calm 10.00 A Few Clouds FEW033 FEW250 63 52 68% 30.44 1030.8
02 08:52 N 3 10.00 A Few Clouds FEW250 55.9 48.9 77% 30.43 1030.3
02 07:52 NW 5 10.00 A Few Clouds FEW250 50 46.9 50 44.1 89% 49 30.4 1029.4
02 06:52 Calm 10.00 Fair CLR 45 44.1 97% 30.38 1028.5
02 05:52 Calm 10.00 Fair CLR 46 44.1 93% 30.36 1028.0
02 04:52 NW 3 10.00 Fair CLR 45 43 93% 30.35 1027.5
02 03:52 Calm 10.00 Fair CLR 46 43 89% 30.33 1026.8
02 02:52 E 3 10.00 Fair CLR 44.1 42.1 93% 30.32 1026.5
02 01:52 Calm 10.00 Fair CLR 46.9 43 64 46.9 86% 30.31 1026.2
02 00:52 Calm 10.00 Fair CLR 48.9 43 80% 30.29 1025.7
01 23:52 Calm 10.00 Fair CLR 51.1 43 74% 30.29 1025.5
01 22:52 Calm 10.00 Fair CLR 53.1 44.1 72% 30.27 1025.0
01 21:52 E 5 10.00 Fair CLR 57.9 43 58% 30.26 1024.5
01 20:52 NE 5 10.00 Fair CLR 61 41 48% 30.24 1023.8
01 19:52 NE 7 10.00 Fair CLR 64 41 75.9 64 43% 30.21 1023.0
01 18:52 NE 10 10.00 Fair CLR 69.1 39.9 35% 30.19 1022.1
01 17:52 N 5 10.00 A Few Clouds FEW060 73 41 32% 30.17 1021.4
01 16:52 NE 7 10.00 A Few Clouds FEW055 FEW250 75 43 32% 77 30.15 1020.9
01 15:52 N 9 10.00 Partly Cloudy FEW050 SCT200 75 43 32% 77 30.15 1020.8
01 14:52 N 9 10.00 A Few Clouds FEW050 FEW250 75 45 34% 77 30.16 1021.0
01 13:52 NE 12 G 22 10.00 A Few Clouds FEW050 FEW250 75 46 75 62.1 36% 77 30.17 1021.2
01 12:52 NE 9 G 16 10.00 A Few Clouds FEW050 FEW250 73 46.9 40% 30.18 1021.9
01 11:52 N 7 10.00 A Few Clouds FEW050 FEW250 71.1 46.9 42% 30.19 1022.1
01 10:52 N 9 10.00 Mostly Cloudy BKN040 68 46 45% 30.19 1022.3
01 09:52 NE 10 10.00 Mostly Cloudy SCT040 BKN250 66 46 49% 30.18 1021.7
01 08:52 N 12 10.00 Mostly Cloudy BKN250 64 46 52% 30.16 1021.0
01 07:52 N 9 10.00 Partly Cloudy SCT250 62.1 46.9 66.9 61 58% 30.14 1020.4
01 06:52 N 7 10.00 Partly Cloudy SCT250 61 46.9 60% 30.12 1019.8
01 05:52 N 7 10.00 Partly Cloudy SCT250 62.1 48.9 62% 30.1 1019.0
01 04:52 N 9 10.00 Mostly Cloudy BKN250 64 50 60% 30.07 1018.2
01 03:52 N 6 10.00 Mostly Cloudy BKN250 64 52 65% 30.06 1017.7
01 02:52 N 9 10.00 Mostly Cloudy BKN250 66 52 61% 30.05 1017.2
01 01:52 N 7 10.00 Mostly Cloudy BKN250 66.9 53.1 71.1 66 61% 30.04 1017.2
01 00:52 N 5 10.00 Overcast OVC250 66.9 53.1 61% 30.03 1016.6
30 23:52 N 5 10.00 Overcast SCT120 OVC250 68 54 61% 30.04 1016.9
30 22:52 N 6 9.00 Overcast BKN120 OVC250 69.1 55 61% 30.04 1017.0
30 21:52 N 3 10.00 Overcast BKN120 OVC200 70 55 59% 30.05 1017.2
30 20:52 N 8 10.00 Overcast BKN120 OVC200 71.1 55 57% 30.05 1017.2
30 19:52 N 8 10.00 Mostly Cloudy FEW080 BKN120 BKN200 71.1 54 75 71.1 55% 30.04 1017.2
30 18:52 N 10 10.00 Mostly Cloudy FEW080 BKN120 BKN200 73 53.1 50% 30.04 1017.0
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)