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.
20 23:52 Calm 10.00 Overcast OVC018 45 41 86% 30.14 1020.6
20 22:52 Calm 10.00 Overcast OVC018 45 39.9 83% 30.15 1020.9
20 21:52 S 3 10.00 Overcast OVC019 46.9 39.9 77% 30.16 1021.4
20 20:52 S 3 10.00 Overcast OVC019 46 41 83% 30.16 1021.4
20 19:52 Calm 10.00 Overcast OVC020 46 39.9 79% 30.16 1021.4
20 18:52 S 3 10.00 Overcast OVC022 46 39.9 48 46 79% 30.17 1021.6
20 17:52 S 5 10.00 Overcast OVC023 46 39.9 79% 44 30.17 1021.7
20 16:52 S 6 10.00 Overcast OVC020 46.9 39.9 77% 45 30.16 1021.2
20 15:52 S 3 8.00 Overcast BKN020 BKN030 OVC055 48 39.9 74% 30.15 1021.2
20 14:52 Calm 10.00 Overcast FEW019 SCT032 OVC046 48 39.9 74% 30.15 1021.2
20 13:52 S 5 10.00 Overcast BKN022 OVC047 48 39.9 74% 47 30.16 1021.3
20 12:52 Calm 10.00 Overcast BKN022 OVC055 48 39.9 48 41 74% 30.16 1021.4
20 11:52 Vrbl 3 10.00 Overcast OVC021 46 39 77% 30.2 1022.8
20 10:52 Calm 7.00 Overcast OVC021 46 39 77% 30.23 1023.7
20 09:52 S 3 7.00 Overcast BKN017 OVC034 44.1 37.9 79% 30.24 1024.0
20 08:52 E 3 7.00 Overcast OVC015 43 37 80% 30.25 1024.4
20 07:52 Calm 10.00 Overcast OVC014 42.1 37 82% 30.25 1024.5
20 06:52 Calm 10.00 Overcast OVC015 41 37 42.1 41 86% 30.24 1023.9
20 05:52 E 3 10.00 Overcast BKN016 OVC035 41 37 86% 30.23 1023.9
20 04:52 W 3 10.00 Overcast OVC018 42.1 37 82% 30.24 1024.2
20 03:52 Calm 10.00 Overcast OVC024 42.1 37 82% 30.23 1023.9
20 02:52 Calm 10.00 Overcast FEW015 OVC024 42.1 37 82% 30.24 1024.0
20 01:52 N 5 10.00 Overcast OVC025 42.1 37 82% 40 30.23 1023.8
20 00:52 Calm 10.00 Overcast FEW015 OVC025 42.1 37 44.1 42.1 82% 30.24 1024.1
19 23:52 N 3 10.00 Overcast FEW015 OVC024 43 37 80% 30.24 1024.3
19 22:52 NE 5 10.00 Overcast OVC025 43 37 80% 41 30.26 1024.7
19 21:52 NE 5 10.00 Overcast FEW018 OVC028 43 37 80% 41 30.27 1025.1
19 20:52 NW 3 10.00 Overcast SCT018 OVC029 43 37 80% 30.26 1024.9
19 19:52 NW 5 10.00 Mostly Cloudy BKN018 BKN250 42.1 37 82% 40 30.26 1024.7
19 18:52 N 7 10.00 Overcast OVC018 44.1 37 45 44.1 76% 41 30.24 1024.0
19 17:52 NW 9 10.00 Overcast OVC018 44.1 37 76% 40 30.23 1023.7
19 16:52 N 9 10.00 Mostly Cloudy BKN017 BKN250 44.1 37.9 79% 40 30.22 1023.3
19 15:52 N 7 10.00 Mostly Cloudy BKN017 BKN250 45 37.9 77% 42 30.2 1022.8
19 14:52 N 10 10.00 Mostly Cloudy BKN017 BKN250 45 37.9 77% 40 30.19 1022.3
19 13:52 N 8 10.00 Overcast OVC018 45 37.9 77% 41 30.18 1022.1
19 12:52 N 10 10.00 Overcast OVC015 44.1 37.9 45 42.1 79% 39 30.18 1022.2
19 11:52 N 10 10.00 Overcast OVC015 44.1 39 83% 39 30.17 1021.8
19 10:52 N 9 10.00 Mostly Cloudy SCT010 BKN015 44.1 37.9 79% 40 30.18 1022.1
19 09:52 N 8 10.00 Overcast SCT008 BKN014 OVC017 43 39.9 89% 39 30.17 1021.6
19 08:52 N 10 6.00 Fog/Mist BKN008 OVC015 43 41 93% 38 30.13 1020.5
19 07:52 NW 7 6.00 Fog/Mist OVC006 42.1 41 96% 38 30.12 1020.0
19 06:52 NW 8 3.00 Fog/Mist OVC003 42.1 41 43 41 96% 38 30.09 1019.1 0.07
19 05:52 NW 7 3.00 Fog/Mist OVC003 42.1 41 96% 38 30.06 1017.9
19 04:52 NW 9 4.00 Fog/Mist OVC004 42.1 41 96% 37 30.04 1017.4
19 03:52 NW 3 4.00 Fog/Mist OVC005 42.1 42.1 100% 30.02 1016.6 0.07
19 02:52 Calm 6.00 Light Rain Fog/Mist OVC006 43 42.1 97% 30.03 1017.1 0.02
19 01:52 E 7 6.00 Light Rain Fog/Mist BKN006 OVC060 42.1 41 96% 38 30.02 1016.6 0.05
19 00:52 SE 5 8.00 Light Rain OVC060 41 39.9 42.1 39.9 96% 38 30.07 1018.3 0.02 0.12
18 23:52 E 5 6.00 Light Rain Fog/Mist OVC065 41 39 93% 38 30.11 1019.7 0.06
18 22:52 NE 3 10.00 Overcast OVC070 41 39 93% 30.13 1020.3
18 21:52 E 5 10.00 Light Rain OVC050 41 37.9 89% 38 30.13 1020.2 0.01 0.04
18 20:52 Calm 10.00 Light Rain BKN042 OVC060 41 37.9 89% 30.15 1021.2
18 19:52 SE 5 10.00 Overcast SCT048 BKN070 OVC095 39.9 39 97% 37 30.14 1020.9 0.03
18 18:52 S 3 8.00 Rain BKN042 OVC075 41 37.9 48.9 39.9 89% 30.16 1021.4 0.07 0.1
18 17:52 SW 5 10.00 Light Rain OVC045 42.1 36 79% 40 30.17 1021.8 0.03
18 16:52 S 9 10.00 Overcast OVC050 46.9 25 42% 43 30.15 1021.1
18 15:52 S 5 10.00 Overcast OVC055 48 23 37% 47 30.15 1021.0
18 14:52 S 8 10.00 Overcast OVC060 48 23 37% 45 30.16 1021.4
18 13:52 S 6 10.00 Overcast BKN070 OVC110 48 24.1 39% 46 30.18 1022.1
18 12:52 S 7 10.00 Overcast FEW065 SCT085 OVC110 48 23 48.9 26.1 37% 45 30.19 1022.4
18 11:52 SW 8 10.00 Mostly Cloudy FEW100 SCT140 SCT180 BKN250 48 21.9 36% 45 30.21 1023.0
18 10:52 Vrbl 5 10.00 Mostly Cloudy FEW065 FEW120 SCT180 BKN250 46 23 40% 44 30.24 1024.4
18 09:52 S 5 10.00 Mostly Cloudy FEW065 FEW110 SCT180 BKN250 42.1 21.9 45% 40 30.25 1024.6
18 08:52 Calm 10.00 Mostly Cloudy FEW190 BKN250 35.1 25 67% 30.25 1024.5
18 07:52 Calm 10.00 Mostly Cloudy FEW110 FEW190 BKN250 30 21.9 72% 30.24 1024.3
18 06:52 S 3 10.00 Mostly Cloudy BKN250 27 21 32 24.1 78% 30.22 1023.7
18 05:52 Calm 10.00 Fair CLR 27 19.9 75% 30.2 1023.0
18 04:52 N 3 10.00 Fair CLR 28 21 75% 30.19 1022.5
18 03:52 Calm 10.00 Fair CLR 27 19.9 75% 30.18 1022.2
18 02:52 NW 5 10.00 Fair CLR 28 19.9 72% 24 30.17 1021.8
18 01:52 NW 3 10.00 Fair CLR 30 19.9 66% 30.16 1021.3
18 00:52 Calm 10.00 Fair CLR 32 19.9 43 30 61% 30.15 1020.9
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)