Weather observations for the past three days for
Washington/Dulles International Airport, DC
Metric (Imperial)
Date Time (est) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
16 13:52 N 7 16.09 Overcast OVC019 6.7 1.7 71% 6 76.56 1020.6
16 12:52 NW 15 16.09 Overcast OVC019 6.1 2.2 6.7 1.7 76% 3 76.56 1020.7
16 11:52 Vrbl 7 16.09 Overcast OVC018 6.7 2.2 73% 6 76.58 1021.1
16 10:52 N 9 14.48 Overcast OVC015 5.6 1.7 76% 4 76.56 1020.7
16 09:52 N 9 11.27 Overcast BKN012 OVC017 3.3 1.1 86% 1 76.56 1020.7
16 08:52 N 13 9.66 Fog/Mist BKN011 OVC026 2.8 0.6 86% -0 76.5 1020.2
16 07:52 N 15 8.05 Fog/Mist SCT009 OVC018 2.2 0.6 89% -1 76.45 1019.5
16 06:52 N 20 9.66 Fog/Mist OVC008 1.7 0.6 2.8 1.7 93% -3 76.38 1018.6
16 05:52 N 22 8.05 Fog/Mist OVC007 1.7 0.6 93% -3 76.25 1016.9
16 04:52 N 20 6.44 Fog/Mist OVC005 1.7 1.1 96% -3 76.23 1016.3
16 03:52 N 19 8.05 Fog/Mist OVC006 2.8 1.7 93% -1 76.15 1015.5
16 02:52 N 13 9.66 Fog/Mist OVC006 2.8 1.7 93% -0 76.1 1014.8
16 01:52 N 13 8.05 Fog/Mist OVC006 2.8 1.7 93% -0 76.07 1014.3
16 00:52 N 17 11.27 Overcast OVC006 2.8 1.7 5 2.8 93% -1 76.02 1013.5 0.61
15 23:52 NE 15 8.05 Light Rain Fog/Mist OVC005 3.3 2.2 93% 0 76.05 1013.8 0.1
15 22:52 N 13 8.05 Light Rain Fog/Mist OVC005 3.9 2.8 93% 1 76.07 1014.4 0.08
15 21:52 N 11 9.66 Light Rain Fog/Mist OVC004 3.9 3.3 96% 1 76.05 1013.9 0.13 0.43
15 20:52 N 11 8.05 Light Rain Fog/Mist OVC005 4.4 3.9 97% 2 76.05 1014.0 0.13
15 19:52 NE 7 4.02 Light Rain Fog/Mist OVC004 4.4 3.9 97% 3 76.05 1013.9 0.18
15 18:52 NE 6 4.83 Light Rain Fog/Mist OVC004 5 4.4 6.7 4.4 96% 76.05 1014.0 0.18 0.86
15 17:52 Calm 4.02 Light Rain Fog/Mist BKN005 OVC011 4.4 3.9 97% 76.02 1013.8 0.18
15 16:52 E 7 4.02 Light Rain Fog/Mist BKN006 OVC010 4.4 3.9 97% 3 76.05 1014.0 0.2
15 15:52 Calm 6.44 Light Rain Fog/Mist FEW009 BKN012 OVC030 5.6 5 96% 76.07 1014.4 0.13 0.3
15 14:52 E 6 6.44 Light Rain Fog/Mist BKN016 BKN030 OVC040 5.6 4.4 92% 76.12 1014.9 0.13
15 13:52 SE 7 8.05 Light Rain Fog/Mist OVC040 5.6 3.9 89% 4 76.17 1015.8 0.05
15 12:52 NW 7 11.27 Light Rain OVC045 6.7 0.6 7.8 0.6 65% 6 76.23 1016.6 0.03 0.03
15 11:52 Calm 16.09 Overcast OVC055 7.8 -2.2 50% 76.28 1017.1
15 10:52 Calm 16.09 Overcast BKN075 OVC090 6.7 -2.2 53% 76.3 1017.3
15 09:52 Calm 16.09 Overcast OVC085 5.6 -2.2 58% 76.3 1017.4
15 08:52 Calm 16.09 Overcast BKN100 OVC140 3.9 -2.2 65% 76.3 1017.5
15 07:52 Calm 16.09 Overcast SCT120 OVC150 1.7 -2.8 72% 76.3 1017.3
15 06:52 Calm 16.09 Overcast OVC150 1.7 -2.8 2.8 -1.1 72% 76.28 1017.1
15 05:52 NW 6 16.09 Overcast OVC150 1.7 -2.8 72% 76.3 1017.2
15 04:52 Calm 16.09 Overcast OVC160 1.7 -3.3 70% 76.28 1017.1
15 03:52 SW 6 16.09 Overcast OVC150 1.1 -3.3 73% 76.3 1017.5
15 02:52 Calm 16.09 Mostly Cloudy SCT140 BKN160 -1.1 -3.9 82% 76.33 1017.7
15 01:52 Calm 16.09 Mostly Cloudy FEW140 BKN160 0 -3.9 75% 76.38 1018.2
15 00:52 Calm 16.09 Mostly Cloudy BKN160 0.6 -2.8 5.6 0.6 78% 76.4 1018.7
14 23:52 Calm 16.09 Mostly Cloudy BKN180 1.1 -3.9 70% 76.43 1018.9
14 22:52 S 6 16.09 Partly Cloudy SCT250 1.1 -3.9 70% 76.43 1019.0
14 21:52 Calm 16.09 Partly Cloudy SCT250 2.2 -3.3 67% 76.4 1018.9
14 20:52 S 6 16.09 Partly Cloudy SCT250 2.8 -3.3 65% 76.43 1019.2
14 19:52 Calm 16.09 Fair CLR 3.9 -3.9 57% 76.45 1019.4
14 18:52 S 6 16.09 Partly Cloudy FEW120 SCT250 4.4 -3.9 13.9 4.4 55% 76.45 1019.5
14 17:52 S 6 16.09 Overcast BKN120 OVC200 8.9 -3.9 41% 76.4 1018.8
14 16:52 S 9 16.09 Mostly Cloudy FEW120 BKN250 11.1 -2.8 38% 76.38 1018.6
14 15:52 W 9 16.09 Partly Cloudy FEW150 SCT250 13.3 -2.8 33% 76.38 1018.3
14 14:52 SW 13 16.09 A Few Clouds FEW250 13.9 -3.3 30% 76.35 1018.0
14 13:52 W 11 16.09 Mostly Cloudy FEW080 BKN250 13.3 -2.8 33% 76.4 1018.7
14 12:52 W 15 16.09 A Few Clouds FEW080 FEW250 12.2 -1.7 12.2 -5 38% 76.45 1019.4
14 11:52 S 11 16.09 A Few Clouds FEW080 FEW250 10.6 -3.9 36% 76.53 1020.5
14 10:52 S 9 16.09 A Few Clouds FEW250 7.8 -5 40% 6 76.61 1021.6
14 09:52 S 11 16.09 A Few Clouds FEW090 FEW250 3.9 -6.7 46% 1 76.63 1022.1
14 08:52 S 9 16.09 Partly Cloudy SCT090 0 -7.2 59% -3 76.66 1022.4
14 07:52 S 7 16.09 A Few Clouds FEW090 -3.3 -8.3 69% -6 76.63 1022.0
14 06:52 Calm 16.09 A Few Clouds FEW080 -4.4 -8.9 -2.8 -5.6 71% 76.66 1022.1
14 05:52 Calm 16.09 A Few Clouds FEW080 -4.4 -9.4 68% 76.63 1021.9
14 04:52 Calm 16.09 A Few Clouds FEW100 -4.4 -10 65% 76.63 1022.0
14 03:52 S 7 16.09 Fair CLR -3.9 -9.4 66% -7 76.63 1021.8
14 02:52 S 11 16.09 Fair CLR -4.4 -9.4 68% -8 76.66 1022.3
14 01:52 S 9 16.09 Fair CLR -3.3 -10 60% -7 76.68 1022.6
14 00:52 S 11 16.09 Fair CLR -3.9 -9.4 -1.1 -5 66% -8 76.68 1022.6
13 23:52 S 6 16.09 Fair CLR -4.4 -9.4 68% 76.71 1023.0
13 22:52 Calm 16.09 Fair CLR -4.4 -9.4 68% 76.71 1022.9
13 21:52 S 6 16.09 Fair CLR -4.4 -9.4 68% 76.71 1022.9
13 20:52 SW 7 16.09 Fair CLR -3.9 -9.4 66% -7 76.71 1022.9
13 19:52 E 6 16.09 Fair CLR -2.8 -9.4 61% 76.73 1023.1
13 18:52 Calm 16.09 Fair CLR -0.6 -10.6 3.9 -1.7 47% 76.71 1022.8
13 17:52 N 7 16.09 A Few Clouds FEW250 2.8 -11.7 34% 1 76.68 1022.6
13 16:52 NW 9 16.09 A Few Clouds FEW250 3.9 -11.1 33% 2 76.68 1022.5
13 15:52 N 9 16.09 A Few Clouds FEW200 3.9 -10.6 34% 2 76.68 1022.5
13 14:52 N 11 16.09 Fair CLR 3.3 -10.6 36% 1 76.68 1022.7
Date Time (est) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)