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.
01 01:52 NW 9 10.00 Mostly Cloudy SCT050 BKN200 36 21.9 57% 30 30.32 1026.8
01 00:52 NW 9 10.00 Overcast FEW060 SCT120 OVC200 36 21.9 41 36 57% 30 30.29 1026.0
30 23:52 NW 20 G 31 10.00 Overcast FEW060 SCT120 OVC200 39 23 53% 30 30.26 1024.8
30 22:52 NW 22 G 29 10.00 Overcast and Breezy SCT060 BKN120 OVC200 41 25 53% 32 30.22 1023.4
30 21:52 W 3 10.00 Overcast BKN060 BKN120 OVC200 37.9 36 93% 30.19 1022.5
30 20:52 Calm 10.00 Overcast FEW011 BKN044 OVC100 37.9 36 93% 30.16 1021.4
30 19:52 SW 3 10.00 Overcast SCT009 BKN040 OVC100 39 37 93% 30.15 1021.0
30 18:52 W 8 10.00 Overcast OVC008 39.9 37 39.9 37 89% 35 30.14 1020.9
30 17:52 S 10 10.00 Overcast OVC008 39.9 37 89% 34 30.1 1019.6
30 16:52 S 8 10.00 Overcast OVC009 39.9 37 89% 35 30.09 1019.2
30 15:52 S 13 10.00 Overcast OVC009 39.9 36 86% 33 30.08 1018.8
30 14:52 SW 8 10.00 Overcast OVC010 39.9 36 86% 35 30.09 1019.2
30 13:52 S 16 G 22 10.00 Overcast FEW015 SCT028 BKN038 BKN130 OVC200 39 34 82% 31 30.1 1019.4
30 12:52 S 12 10.00 Overcast FEW015 SCT024 OVC039 37 33.1 37 34 86% 30 30.14 1020.9 0.06
30 11:52 S 16 G 25 10.00 Overcast SCT030 BKN042 OVC055 36 32 86% 27 30.19 1022.3
30 10:52 S 12 10.00 Overcast SCT039 OVC055 35.1 28.9 78% 28 30.23 1023.9
30 09:52 S 12 10.00 Overcast FEW025 BKN037 OVC055 34 30 85% 26 30.26 1024.7 0.02 0.06
30 08:52 S 12 9.00 Light Rain BKN055 BKN070 OVC100 34 28 79% 26 30.27 1025.2 0.03
30 07:52 S 9 8.00 Light Rain OVC055 35.1 27 72% 29 30.28 1025.7 0.01
30 06:52 S 12 10.00 Light Rain Snow OVC060 36 23 37 36 59% 29 30.29 1026.1
30 05:52 S 10 10.00 Overcast OVC065 37 21 52% 30 30.3 1026.1
30 04:52 S 8 10.00 Overcast OVC110 36 21 55% 30 30.31 1026.6
30 03:52 S 8 10.00 Overcast FEW120 OVC140 36 19.9 52% 30 30.33 1027.2
30 02:52 S 8 10.00 Overcast OVC140 36 18 48% 30 30.36 1028.4
30 01:52 S 7 10.00 Overcast OVC140 37 19 48% 32 30.41 1030.0
30 00:52 S 7 10.00 Overcast FEW120 OVC140 37 19 37 35.1 48% 32 30.41 1030.0
29 23:52 SE 10 10.00 Overcast BKN140 OVC190 37 19 48% 30 30.42 1030.3
29 22:52 S 7 10.00 Overcast OVC160 37 19 48% 32 30.45 1031.4
29 21:52 S 8 10.00 Overcast BKN160 OVC250 37 18 46% 32 30.47 1031.9
29 20:52 SE 6 10.00 Overcast BKN160 OVC250 36 18 48% 32 30.47 1031.9
29 19:52 S 5 10.00 Overcast BKN160 OVC250 36 17.1 46% 33 30.48 1032.3
29 18:52 SE 6 10.00 Mostly Cloudy BKN250 35.1 16 43 30 46% 31 30.47 1032.3
29 17:52 Calm 10.00 Partly Cloudy SCT250 35.1 16 46% 30.48 1032.4
29 16:52 Calm 10.00 Partly Cloudy SCT250 37 16 42% 30.48 1032.4
29 15:52 Calm 10.00 A Few Clouds FEW250 41 15.1 35% 30.49 1032.6
29 14:52 W 5 10.00 A Few Clouds FEW250 43 16 34% 41 30.49 1032.6
29 13:52 Calm 10.00 A Few Clouds FEW250 42.1 16 35% 30.48 1032.4
29 12:52 Calm 10.00 Partly Cloudy SCT250 42.1 16 42.1 27 35% 30.5 1032.9
29 11:52 N 6 10.00 Partly Cloudy SCT250 39.9 16 38% 36 30.53 1034.0
29 10:52 W 9 10.00 A Few Clouds FEW250 37.9 15.1 39% 32 30.55 1034.7
29 09:52 NW 10 10.00 A Few Clouds FEW250 37 16 42% 30 30.55 1034.8
29 08:52 W 6 10.00 A Few Clouds FEW250 35.1 15.1 44% 31 30.54 1034.3
29 07:52 Calm 10.00 A Few Clouds FEW250 28 16 60% 30.52 1033.7
29 06:52 W 9 10.00 A Few Clouds FEW250 27 15.1 32 24.1 61% 19 30.48 1032.5
29 05:52 Calm 10.00 Fair CLR 24.1 14 65% 30.46 1031.8
29 04:52 NW 10 10.00 Fair CLR 30 14 51% 22 30.44 1031.2
29 02:52 W 5 10.00 A Few Clouds FEW060 28.9 12.9 51% 25 30.43 1030.8
29 01:52 W 3 10.00 A Few Clouds FEW060 30 12 47% 30.42 1030.3
29 00:52 W 10 10.00 A Few Clouds FEW060 32 12.9 35.1 30 45% 24 30.39 1029.2
28 23:52 W 6 10.00 A Few Clouds FEW060 30.9 14 49% 26 30.38 1029.0
28 22:52 NW 13 10.00 A Few Clouds FEW070 30.9 16 54% 22 30.36 1028.3
28 21:52 NW 14 10.00 A Few Clouds FEW070 32 16 52% 23 30.34 1027.5
28 20:52 W 10 10.00 A Few Clouds FEW065 32 14 47% 24 30.32 1027.1
28 19:52 W 8 10.00 A Few Clouds FEW065 FEW100 33.1 14 45% 27 30.31 1026.7
28 18:52 W 9 G 23 10.00 Overcast BKN060 OVC100 34 15.1 41 34 46% 27 30.29 1026.0
28 17:52 W 15 G 26 10.00 Mostly Cloudy BKN055 BKN100 35.1 14 42% 26 30.27 1025.1
28 16:52 NW 15 G 23 10.00 Mostly Cloudy BKN055 35.1 15.1 44% 26 30.25 1024.4
28 15:52 NW 18 G 29 10.00 Mostly Cloudy BKN070 36 12.9 39% 26 30.22 1023.6
28 14:52 W 20 G 33 10.00 Mostly Cloudy BKN060 37.9 12.9 36% 29 30.2 1022.7
28 13:52 NW 20 G 32 10.00 Mostly Cloudy BKN060 39.9 14 35% 31 30.18 1022.1
28 12:52 W 22 G 31 10.00 Mostly Cloudy and Breezy BKN055 39.9 12.9 41 30.9 33% 31 30.17 1021.8
28 11:52 NW 18 G 30 10.00 Mostly Cloudy SCT048 BKN055 39.9 14 35% 31 30.16 1021.4
28 10:52 NW 22 G 33 10.00 Mostly Cloudy and Breezy FEW040 BKN055 39 15.1 38% 29 30.16 1021.4
28 09:52 W 26 G 37 10.00 Partly Cloudy and Windy SCT045 36 16 44% 24 30.14 1020.9
28 08:52 W 21 G 30 10.00 A Few Clouds and Breezy FEW040 35.1 16 46% 25 30.13 1020.4
28 07:52 W 7 10.00 A Few Clouds FEW060 32 12.9 45% 26 30.13 1020.5
28 06:52 W 8 10.00 A Few Clouds FEW060 30.9 12 35.1 30.9 45% 24 30.12 1020.0
28 05:52 W 8 10.00 A Few Clouds FEW060 32 12 43% 25 30.09 1019.0
28 04:52 W 12 G 18 10.00 Fair CLR 32 10.9 41% 24 30.07 1018.4
28 03:52 W 7 10.00 Mostly Cloudy BKN065 32 12.9 45% 26 30.07 1018.3
28 02:52 W 17 G 30 10.00 A Few Clouds FEW060 33.1 14 45% 23 30.07 1018.4
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)