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.
29 06:52 S 35 G 46 16.09 Overcast and Breezy OVC013 11.7 8.9 11.7 7.2 83% 74.88 998.2
29 05:52 S 28 G 48 16.09 Overcast OVC011 10.6 8.3 86% 74.88 998.4
29 04:52 S 26 G 43 16.09 Overcast OVC010 10 8.3 89% 7 74.93 999.1
29 03:52 S 22 G 43 16.09 Overcast OVC010 9.4 7.8 90% 7 75.08 1001.2
29 02:52 S 22 16.09 Overcast OVC009 8.9 6.7 86% 6 75.21 1002.9
29 01:52 S 31 G 46 16.09 Overcast OVC008 8.3 6.7 90% 5 75.29 1003.7
29 00:52 S 26 G 37 16.09 Overcast OVC006 7.2 6.1 7.2 6.1 93% 4 75.44 1005.8
28 23:52 S 20 16.09 Overcast OVC006 7.2 5.6 90% 4 75.51 1006.8
28 22:52 S 20 16.09 Overcast OVC007 6.7 5.6 93% 3 75.62 1008.2
28 21:52 S 19 16.09 Overcast OVC009 6.7 5 89% 4 75.67 1008.9
28 20:52 S 22 G 37 16.09 Overcast OVC011 6.1 3.9 86% 3 75.77 1010.2
28 19:52 S 15 G 35 16.09 Overcast OVC014 6.1 2.8 80% 3 75.9 1011.9
28 18:52 S 17 16.09 Overcast OVC018 6.1 2.2 6.1 5 76% 3 75.97 1013.0
28 17:52 S 11 16.09 Overcast OVC021 6.1 1.1 71% 4 76.1 1014.8
28 16:52 S 11 16.09 Mostly Cloudy BKN023 BKN200 5.6 1.1 73% 3 76.12 1015.0
28 15:52 S 7 16.09 Mostly Cloudy SCT022 BKN060 BKN200 6.1 1.1 71% 5 76.2 1015.9
28 14:52 S 9 16.09 Overcast OVC020 5.6 0.6 71% 4 76.23 1016.5
28 13:52 S 19 16.09 Overcast OVC020 5.6 0.6 71% 2 76.3 1017.5
28 12:52 S 11 16.09 Overcast OVC020 5 0 5 1.7 70% 3 76.35 1018.2
28 11:52 S 17 16.09 Overcast OVC018 3.9 -0.6 73% 0 76.48 1019.8
28 10:52 S 13 16.09 Overcast OVC019 3.9 -1.1 70% 1 76.58 1021.0
28 09:52 S 17 16.09 Overcast OVC021 2.8 -1.7 73% -1 76.66 1022.2
28 08:52 S 11 16.09 Overcast OVC016 2.2 -1.7 76% -1 76.68 1022.6
28 07:52 S 11 16.09 Overcast OVC016 1.7 -1.7 78% -1 76.66 1022.2
28 06:52 SE 9 16.09 Overcast OVC015 1.7 -1.7 2.8 1.7 78% -1 76.68 1022.6
28 05:52 S 9 16.09 Overcast OVC018 2.2 -1.7 76% -0 76.68 1022.6
28 04:52 S 7 16.09 Overcast OVC017 2.2 -1.7 76% 0 76.73 1023.0
28 03:52 SE 7 16.09 Overcast OVC019 2.2 -1.7 76% 0 76.73 1023.2
28 02:52 SE 6 16.09 Overcast OVC018 2.2 -1.7 76% 76.76 1023.5
28 01:52 SE 6 16.09 Overcast OVC017 2.2 -1.1 79% 76.78 1023.8
28 00:52 NE 7 16.09 Overcast OVC020 2.8 -1.7 3.9 2.8 73% 1 76.78 1023.7
27 23:52 E 6 16.09 Overcast OVC020 2.8 -1.7 73% 76.76 1023.6
27 22:52 NE 7 16.09 Overcast OVC022 2.8 -1.7 73% 1 76.73 1023.3
27 21:52 Calm 16.09 Overcast OVC025 3.3 -1.7 70% 76.73 1023.4
27 20:52 NE 15 16.09 Overcast OVC026 3.3 -1.7 70% 0 76.71 1022.8
27 19:52 E 11 16.09 Overcast OVC027 3.3 -1.7 70% 1 76.68 1022.5
27 18:52 NE 11 16.09 Overcast OVC026 3.9 -1.7 6.7 3.9 67% 1 76.63 1022.0
27 17:52 NE 17 16.09 Overcast OVC027 4.4 -1.7 65% 1 76.61 1021.6
27 16:52 NE 11 16.09 Overcast OVC028 5 -1.1 65% 3 76.56 1020.8
27 15:52 N 17 16.09 Overcast OVC029 5.6 -1.1 62% 3 76.5 1020.0
27 14:52 NE 17 16.09 Mostly Cloudy BKN031 6.1 -0.6 63% 3 76.43 1019.2
27 13:52 NE 20 16.09 Overcast OVC031 6.1 0 65% 3 76.35 1018.0
27 12:52 N 19 16.09 Mostly Cloudy BKN033 6.1 0 6.7 2.8 65% 3 76.35 1018.1
27 11:52 N 15 16.09 Mostly Cloudy BKN035 6.7 0.6 65% 4 76.38 1018.3
27 10:52 NE 15 G 30 16.09 Mostly Cloudy BKN035 6.1 0.6 68% 3 76.38 1018.5
27 09:52 N 15 16.09 Mostly Cloudy BKN033 5 0 70% 2 76.35 1018.2
27 08:52 N 9 16.09 Mostly Cloudy BKN033 3.9 0 76% 2 76.28 1017.2
27 07:52 N 9 16.09 Mostly Cloudy BKN037 3.9 -0.6 73% 2 76.2 1016.0
27 06:52 N 7 16.09 Overcast OVC037 3.3 -1.1 3.9 2.8 73% 2 76.1 1014.7
27 05:52 N 6 16.09 Overcast BKN037 OVC050 2.8 -1.7 73% 76 1013.2
27 04:52 N 11 16.09 Overcast OVC035 3.3 -2.8 65% 1 75.9 1012.0
27 03:52 N 11 16.09 Mostly Cloudy BKN021 BKN038 3.3 -2.2 68% 1 75.82 1011.1
27 02:52 N 13 16.09 Overcast OVC019 3.9 -3.3 60% 1 75.77 1010.2
27 01:52 NW 7 16.09 Mostly Cloudy BKN024 3.9 -3.3 60% 2 75.72 1009.7
27 00:52 N 6 16.09 Mostly Cloudy SCT039 BKN050 3.9 -3.3 3.9 2.2 60% 75.67 1008.9
26 23:52 NW 7 16.09 Mostly Cloudy BKN050 3.3 -3.3 62% 2 75.64 1008.6
26 22:52 S 17 16.09 Mostly Cloudy BKN050 3.9 -3.9 57% 0 75.62 1008.3
26 21:52 S 11 16.09 Mostly Cloudy BKN045 BKN060 3.3 -4.4 57% 1 75.69 1009.3
26 20:52 S 11 16.09 Overcast BKN050 BKN070 OVC100 3.3 -5 55% 1 75.77 1010.4
26 19:52 S 17 16.09 Mostly Cloudy SCT050 BKN070 BKN100 2.8 -5.6 54% -1 75.82 1011.1
26 18:52 S 15 16.09 Overcast BKN037 OVC050 2.2 -6.1 2.2 0 55% -1 75.87 1011.7
26 17:52 S 13 16.09 Overcast BKN037 OVC060 1.7 -6.7 54% -2 75.95 1012.9
26 16:52 S 15 16.09 Overcast OVC042 1.7 -7.2 52% -2 76.07 1014.4
26 15:52 S 13 G 31 16.09 Overcast OVC044 1.1 -7.2 54% -2 76.15 1015.4
26 14:52 SE 15 16.09 Overcast BKN043 OVC085 1.1 -6.1 59% -3 76.23 1016.4
26 13:52 S 15 16.09 Overcast OVC042 0 -7.2 59% -4 76.35 1018.2
26 12:52 SE 9 16.09 Overcast OVC043 0 -7.2 1.1 -0.6 59% -3 76.48 1020.0 0.05
26 11:52 S 7 9.66 Light Freezing Rain BKN047 OVC060 -0.6 -6.1 67% -3 76.61 1021.5 0.05
26 10:52 S 7 16.09 Overcast BKN050 BKN075 OVC160 0.6 -8.3 52% -1 76.71 1023.0
26 09:52 S 6 16.09 Overcast SCT060 BKN095 OVC200 0.6 -8.9 49% 76.76 1023.6
26 08:52 Calm 16.09 Overcast BKN100 OVC200 0.6 -8.3 52% 76.84 1024.5
26 07:52 NE 6 16.09 Fair CLR 0 -8.3 54% 76.73 1023.2
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)