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.
15 01:52 Calm 10.00 Mostly Cloudy FEW140 BKN160 32 25 75% 30.07 1018.2
15 00:52 Calm 10.00 Mostly Cloudy BKN160 33.1 27 42.1 33.1 78% 30.08 1018.7
14 23:52 Calm 10.00 Mostly Cloudy BKN180 34 25 70% 30.09 1018.9
14 22:52 S 3 10.00 Partly Cloudy SCT250 34 25 70% 30.09 1019.0
14 21:52 Calm 10.00 Partly Cloudy SCT250 36 26.1 67% 30.08 1018.9
14 20:52 S 3 10.00 Partly Cloudy SCT250 37 26.1 65% 30.09 1019.2
14 19:52 Calm 10.00 Fair CLR 39 25 57% 30.1 1019.4
14 18:52 S 3 10.00 Partly Cloudy FEW120 SCT250 39.9 25 57 39.9 55% 30.1 1019.5
14 17:52 S 3 10.00 Overcast BKN120 OVC200 48 25 41% 30.08 1018.8
14 16:52 S 6 10.00 Mostly Cloudy FEW120 BKN250 52 27 38% 30.07 1018.6
14 15:52 W 6 10.00 Partly Cloudy FEW150 SCT250 55.9 27 33% 30.07 1018.3
14 14:52 SW 8 10.00 A Few Clouds FEW250 57 26.1 30% 30.06 1018.0
14 13:52 W 7 10.00 Mostly Cloudy FEW080 BKN250 55.9 27 33% 30.08 1018.7
14 12:52 W 9 10.00 A Few Clouds FEW080 FEW250 54 28.9 54 23 38% 30.1 1019.4
14 11:52 S 7 10.00 A Few Clouds FEW080 FEW250 51.1 25 36% 30.13 1020.5
14 10:52 S 6 10.00 A Few Clouds FEW250 46 23 40% 44 30.16 1021.6
14 09:52 S 7 10.00 A Few Clouds FEW090 FEW250 39 19.9 46% 35 30.17 1022.1
14 08:52 S 6 10.00 Partly Cloudy SCT090 32 19 59% 27 30.18 1022.4
14 07:52 S 5 10.00 A Few Clouds FEW090 26.1 17.1 69% 21 30.17 1022.0
14 06:52 Calm 10.00 A Few Clouds FEW080 24.1 16 27 21.9 71% 30.18 1022.1
14 05:52 Calm 10.00 A Few Clouds FEW080 24.1 15.1 68% 30.17 1021.9
14 04:52 Calm 10.00 A Few Clouds FEW100 24.1 14 65% 30.17 1022.0
14 03:52 S 5 10.00 Fair CLR 25 15.1 66% 20 30.17 1021.8
14 02:52 S 7 10.00 Fair CLR 24.1 15.1 68% 17 30.18 1022.3
14 01:52 S 6 10.00 Fair CLR 26.1 14 60% 20 30.19 1022.6
14 00:52 S 7 10.00 Fair CLR 25 15.1 30 23 66% 18 30.19 1022.6
13 23:52 S 3 10.00 Fair CLR 24.1 15.1 68% 30.2 1023.0
13 22:52 Calm 10.00 Fair CLR 24.1 15.1 68% 30.2 1022.9
13 21:52 S 3 10.00 Fair CLR 24.1 15.1 68% 30.2 1022.9
13 20:52 SW 5 10.00 Fair CLR 25 15.1 66% 20 30.2 1022.9
13 19:52 E 3 10.00 Fair CLR 27 15.1 61% 30.21 1023.1
13 18:52 Calm 10.00 Fair CLR 30.9 12.9 39 28.9 47% 30.2 1022.8
13 17:52 N 5 10.00 A Few Clouds FEW250 37 10.9 34% 34 30.19 1022.6
13 16:52 NW 6 10.00 A Few Clouds FEW250 39 12 33% 35 30.19 1022.5
13 15:52 N 6 10.00 A Few Clouds FEW200 39 12.9 34% 35 30.19 1022.5
13 14:52 N 7 10.00 Fair CLR 37.9 12.9 36% 33 30.19 1022.7
13 13:52 NW 8 G 17 10.00 Fair CLR 36 12 37% 30 30.21 1023.2
13 12:52 NW 10 10.00 Fair CLR 35.1 12.9 35.1 25 40% 28 30.23 1023.9
13 11:52 N 8 10.00 A Few Clouds FEW050 33.1 12.9 43% 27 30.25 1024.8
13 10:52 NW 10 10.00 A Few Clouds FEW050 32 14 47% 24 30.27 1025.2
13 09:52 NW 14 G 23 10.00 A Few Clouds FEW045 30 14 51% 20 30.27 1025.3
13 08:52 N 12 10.00 Fair CLR 28 12 51% 19 30.27 1025.2
13 07:52 N 12 10.00 Fair CLR 26.1 12 55% 16 30.26 1024.8
13 06:52 N 8 10.00 A Few Clouds FEW050 25 12.9 28.9 25 60% 17 30.23 1024.0
13 05:52 N 8 10.00 Partly Cloudy SCT040 26.1 14 60% 18 30.21 1023.4
13 04:52 N 12 10.00 Partly Cloudy SCT041 27 15.1 61% 17 30.2 1023.1
13 03:52 NW 9 10.00 Partly Cloudy SCT041 28 15.1 58% 20 30.19 1022.7
13 02:52 N 9 10.00 Partly Cloudy SCT042 28 15.1 58% 20 30.19 1022.7
13 01:52 NW 5 10.00 A Few Clouds FEW100 27 15.1 61% 22 30.19 1022.6
13 00:52 NW 5 10.00 Fair CLR 27 16 32 27 63% 22 30.19 1022.6
12 23:52 NW 10 10.00 Fair CLR 28.9 15.1 56% 20 30.17 1022.1
12 22:52 NW 9 10.00 Fair CLR 30 15.1 54% 22 30.17 1021.9
12 21:52 NW 8 10.00 A Few Clouds FEW060 30 15.1 54% 23 30.17 1022.1
12 20:52 NW 10 10.00 Fair CLR 30.9 15.1 52% 23 30.17 1022.1
12 19:52 NW 14 10.00 A Few Clouds FEW047 FEW250 30.9 16 54% 21 30.17 1021.9
12 18:52 NW 14 10.00 A Few Clouds FEW250 32 17.1 37 32 54% 23 30.17 1021.8
12 17:52 NW 13 G 23 10.00 Partly Cloudy FEW047 SCT250 34 18 52% 26 30.14 1021.0
12 16:52 NW 13 G 23 10.00 Partly Cloudy SCT045 36 19 50% 28 30.12 1020.1
12 15:52 NW 15 G 25 10.00 Mostly Cloudy BKN048 37 19 48% 29 30.1 1019.5
12 14:52 NW 20 G 30 10.00 Mostly Cloudy BKN048 37 19 48% 27 30.11 1019.6
12 13:52 NW 14 G 28 10.00 Mostly Cloudy BKN048 36 19 50% 28 30.11 1019.9
12 12:52 NW 17 G 30 10.00 Mostly Cloudy BKN044 34 18 35.1 33.1 52% 24 30.13 1020.4
12 11:52 NW 18 G 30 10.00 Overcast OVC045 34 18 52% 24 30.14 1020.8
12 10:52 N 13 10.00 Overcast BKN042 OVC049 33.1 19 56% 25 30.14 1020.9
12 09:52 NW 13 10.00 Overcast OVC048 33.1 19 56% 25 30.13 1020.6
12 08:52 NW 10 10.00 Overcast OVC043 33.1 19 56% 26 30.13 1020.4
12 07:52 N 10 10.00 Overcast OVC043 33.1 19 56% 26 30.12 1020.0
12 06:52 NW 12 10.00 Overcast OVC041 33.1 19 36 33.1 56% 25 30.1 1019.4
12 05:52 N 9 10.00 Overcast OVC044 33.1 19.9 58% 26 30.09 1019.1
12 04:52 N 14 10.00 Overcast OVC044 34 19.9 56% 25 30.07 1018.3
12 03:52 NW 15 G 25 10.00 Overcast OVC047 35.1 19 52% 26 30.06 1018.1
12 02:52 NW 15 G 25 10.00 Overcast OVC042 35.1 19.9 54% 26 30.06 1018.1
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)