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.
10 15:52 N 9 3.22 Rain Fog/Mist BKN004 OVC011 8.3 7.8 97% 7 76.05 1013.9 0.64 1.7
10 14:52 NE 13 3.22 Heavy Rain Fog/Mist OVC004 8.3 7.8 97% 6 76.1 1014.7 0.66
10 13:52 NE 9 4.83 Light Rain Fog/Mist BKN006 OVC020 8.3 7.8 97% 7 76.15 1015.3 0.41
10 12:52 N 9 3.22 Rain Fog/Mist OVC006 8.3 7.8 10 8.3 97% 7 76.3 1017.1 0.28 1.24
10 11:52 E 7 4.83 Light Rain Fog/Mist BKN009 OVC018 8.3 7.2 93% 7 76.4 1018.5 0.33
10 10:52 NE 9 3.22 Rain Fog/Mist SCT017 BKN023 OVC060 8.3 7.2 93% 7 76.53 1020.2 0.36
10 09:52 NE 11 4.83 Rain Fog/Mist FEW010 BKN027 OVC075 8.9 7.8 93% 7 76.58 1021.1 0.23 0.28
10 08:52 N 9 12.87 Light Rain SCT070 OVC100 8.9 7.2 89% 8 76.61 1021.4 0.05
10 07:52 Calm 16.09 Light Rain BKN070 OVC100 8.9 7.2 89% 76.63 1021.5
10 06:52 NE 11 16.09 Overcast BKN075 OVC150 9.4 7.2 10.6 7.8 86% 8 76.63 1021.7
10 05:52 N 9 16.09 Mostly Cloudy SCT080 BKN110 BKN180 10 7.2 83% 9 76.61 1021.5
10 04:52 NE 9 16.09 Overcast SCT075 OVC180 10.6 9.4 92% 76.61 1021.2
10 03:52 N 7 14.48 Overcast FEW120 OVC180 10 9.4 96% 9 76.58 1021.0
10 02:52 N 6 8.05 Fog/Mist FEW012 SCT120 OVC200 9.4 8.9 97% 76.63 1021.5
10 01:52 SW 6 8.05 Fog/Mist FEW013 OVC200 8.9 8.9 100% 76.61 1021.3
10 00:52 Calm 9.66 Fog/Mist OVC200 9.4 9.4 12.2 9.4 100% 76.53 1020.4
09 23:52 Calm 12.87 Overcast FEW120 OVC200 11.1 10.6 97% 76.5 1020.0
09 22:52 S 6 12.87 Overcast FEW120 OVC200 11.7 10.6 93% 76.5 1020.0
09 21:52 SW 13 12.87 Overcast SCT080 OVC120 12.2 10.6 90% 76.5 1019.8
09 20:52 S 17 12.87 Overcast BKN080 OVC120 11.7 10.6 93% 76.48 1019.6
09 19:52 S 19 16.09 Overcast BKN080 OVC110 11.7 10 89% 76.45 1019.3
09 18:52 S 17 16.09 Overcast OVC110 11.7 10 12.2 8.9 89% 76.43 1019.2 0.03
09 17:52 S 22 G 39 16.09 Overcast SCT016 OVC100 11.7 9.4 86% 76.38 1018.2
09 16:52 S 7 14.48 Overcast BKN017 OVC090 10.6 8.9 89% 76.4 1018.7
09 15:52 S 11 12.87 Light Rain SCT012 BKN045 OVC110 10.6 8.9 89% 76.38 1018.5 0.03 0.03
09 14:52 S 17 12.87 Overcast BKN009 OVC075 10 8.9 93% 8 76.38 1018.4
09 13:52 S 15 11.27 Overcast OVC010 9.4 7.8 90% 7 76.43 1018.9
09 12:52 S 15 11.27 Light Rain OVC011 8.9 6.1 8.9 4.4 83% 7 76.48 1019.8
09 11:52 S 13 16.09 Overcast OVC014 7.8 5 83% 6 76.53 1020.4
09 10:52 S 17 16.09 Overcast OVC019 7.8 4.4 79% 5 76.66 1022.2
09 09:52 S 11 12.87 Overcast FEW022 BKN027 OVC033 7.2 5 86% 5 76.71 1022.8
09 08:52 S 9 11.27 Overcast OVC034 6.7 4.4 85% 5 76.76 1023.3
09 07:52 S 13 8.05 Fog/Mist BKN037 OVC090 5.6 4.4 92% 3 76.76 1023.5
09 06:52 S 11 9.66 Fog/Mist BKN038 BKN140 4.4 3.3 7.2 3.9 93% 2 76.84 1024.3
09 05:52 SE 13 12.87 A Few Clouds FEW150 5 3.3 89% 2 76.78 1023.7
09 04:52 S 9 16.09 Fair CLR 5.6 3.9 89% 4 76.84 1024.4
09 03:52 S 13 16.09 A Few Clouds FEW150 5.6 3.3 85% 3 76.84 1024.5
09 02:52 SE 7 16.09 Partly Cloudy SCT150 5 2.2 82% 4 76.84 1024.4
09 01:52 S 9 16.09 Mostly Cloudy SCT150 BKN200 6.7 2.2 73% 5 76.81 1024.1
09 00:52 SW 13 16.09 Mostly Cloudy BKN150 7.2 2.2 8.9 6.1 71% 5 76.84 1024.2
08 23:52 S 9 16.09 Partly Cloudy SCT150 7.2 2.2 71% 6 76.81 1023.9
08 22:52 S 9 16.09 Partly Cloudy SCT150 6.7 2.2 73% 5 76.86 1024.7
08 21:52 S 7 16.09 A Few Clouds FEW150 6.7 2.2 73% 6 76.84 1024.6
08 20:52 S 9 16.09 A Few Clouds FEW150 FEW250 7.8 2.8 71% 6 76.84 1024.6
08 19:52 SE 7 16.09 Mostly Cloudy FEW150 BKN250 7.8 2.8 71% 7 76.84 1024.5
08 18:52 S 7 16.09 Mostly Cloudy SCT150 BKN250 8.9 2.8 13.9 8.3 66% 8 76.84 1024.6
08 17:52 SE 9 16.09 Mostly Cloudy SCT150 BKN250 9.4 2.8 64% 8 76.78 1024.0
08 16:52 S 7 16.09 Mostly Cloudy SCT150 BKN250 11.7 2.8 55% 76.76 1023.3
08 15:52 Vrbl 9 16.09 Mostly Cloudy FEW140 BKN250 13.9 3.3 49% 76.73 1023.3
08 14:52 Vrbl 9 16.09 Mostly Cloudy BKN140 BKN250 13.3 3.3 51% 76.71 1022.8
08 13:52 Vrbl 9 16.09 Mostly Cloudy BKN250 13.3 3.3 51% 76.73 1023.0
08 12:52 S 15 16.09 Mostly Cloudy BKN250 12.8 3.3 12.8 -2.8 53% 76.76 1023.4
08 11:52 Vrbl 9 16.09 Mostly Cloudy BKN250 12.2 3.3 55% 76.78 1023.9
08 10:52 Vrbl 7 16.09 Mostly Cloudy BKN250 10.6 3.3 61% 76.84 1024.5
08 09:52 Calm 16.09 Mostly Cloudy BKN250 7.8 3.3 73% 76.84 1024.4
08 08:52 Calm 14.48 A Few Clouds FEW250 2.8 1.7 93% 76.76 1023.4
08 07:52 Calm 11.27 Fair CLR -2.2 -2.2 100% 76.71 1022.8
08 06:52 Calm 16.09 Fair CLR -1.7 -2.2 2.8 -2.2 96% 76.63 1021.8
08 05:52 SE 6 11.27 Fair CLR -1.7 -1.7 100% 76.58 1021.0
08 04:52 S 9 16.09 A Few Clouds FEW250 -1.1 -1.7 96% -4 76.56 1020.6
08 03:52 Calm 16.09 A Few Clouds FEW200 -0.6 -1.1 96% 76.5 1020.1
08 02:52 Calm 16.09 Fair CLR -0.6 -0.6 100% 76.43 1019.2
08 01:52 Calm 16.09 Fair CLR 0.6 0 96% 76.38 1018.4
08 00:52 Calm 16.09 Fair CLR 2.2 1.1 10.6 1.7 93% 76.33 1017.7
07 23:52 Calm 16.09 Fair CLR 3.3 1.7 89% 76.33 1017.7
07 22:52 N 9 16.09 Fair CLR 6.7 2.2 73% 5 76.3 1017.4
07 21:52 N 9 16.09 Fair CLR 8.9 3.3 68% 8 76.28 1016.8
07 20:52 Calm 16.09 Fair CLR 10 2.8 61% 76.23 1016.5
07 19:52 NW 7 16.09 Fair CLR 9.4 2.8 64% 9 76.23 1016.5
07 18:52 NW 9 16.09 Fair CLR 10 3.3 16.7 10 63% 9 76.17 1015.5
07 17:52 NW 19 16.09 Fair CLR 11.7 3.3 57% 76.07 1014.2
07 16:52 NW 17 16.09 A Few Clouds FEW065 12.8 2.8 51% 76 1013.1
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)