Weather observations for the past three days for
Washington/Dulles International Airport, DC
| Date | Time (edt) | 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. | ||||||||||||||||
| 21 | 05:52 | Calm | 16.09 | Mostly Cloudy | BKN055 | 9.4 | 9.4 | 100% | 75.69 | 1008.9 | |||||||
| 21 | 04:52 | Calm | 16.09 | Mostly Cloudy | BKN055 | 10.6 | 10 | 96% | 75.64 | 1008.4 | 0.18 | ||||||
| 21 | 03:52 | SW 7 | 16.09 | Mostly Cloudy | BKN065 BKN100 | 11.1 | 10.6 | 97% | 75.62 | 1008.0 | |||||||
| 21 | 02:52 | S 7 | 16.09 | Mostly Cloudy | FEW050 BKN065 BKN180 | 11.1 | 10.6 | 97% | 75.64 | 1008.3 | 0.18 | ||||||
| 21 | 01:52 | S 6 | 16.09 | Light Rain | SCT047 BKN075 OVC110 | 12.2 | 10 | 16.7 | 11.7 | 87% | 75.69 | 1009.0 | 0.43 | 0.51 | |||
| 21 | 00:52 | E 6 | 16.09 | Light Rain | FEW055 BKN075 OVC100 | 12.2 | 10.6 | 90% | 75.67 | 1008.6 | 0.03 | ||||||
| 20 | 23:52 | N 28 G 41 | 16.09 | Overcast | FEW070 OVC080 | 15 | 8.3 | 64% | 75.74 | 1009.7 | |||||||
| 20 | 22:52 | SW 15 | 16.09 | Overcast | OVC085 | 15 | 8.9 | 67% | 75.64 | 1008.3 | 0.03 | 0.05 | |||||
| 20 | 21:52 | S 19 | 16.09 | Light Rain | OVC075 | 14.4 | 9.4 | 72% | 75.69 | 1009.0 | 0.03 | ||||||
| 20 | 20:52 | S 17 | 16.09 | Overcast | OVC070 | 14.4 | 9.4 | 72% | 75.72 | 1009.3 | |||||||
| 20 | 19:52 | S 15 | 16.09 | Light Rain | OVC060 | 13.9 | 10.6 | 22.2 | 13.3 | 81% | 75.74 | 1009.8 | 0.08 | 0.15 | |||
| 20 | 18:52 | S 6 | 11.27 | Light Rain | OVC060 | 14.4 | 10 | 75% | 75.79 | 1010.3 | 0.08 | ||||||
| 20 | 17:52 | W 15 | 16.09 | Light Rain | BKN060 OVC100 | 20.6 | 4.4 | 35% | 75.69 | 1009.2 | |||||||
| 20 | 16:52 | S 19 G 43 | 16.09 | Overcast | BKN100 OVC200 | 21.7 | 2.8 | 29% | 75.64 | 1008.5 | |||||||
| 20 | 15:52 | S 30 G 59 | 16.09 | Overcast | FEW090 BKN140 OVC200 | 21.7 | 2.8 | 29% | 75.74 | 1009.7 | |||||||
| 20 | 14:52 | S 20 G 46 | 16.09 | Overcast | FEW090 BKN140 OVC200 | 21.7 | 3.3 | 30% | 75.87 | 1011.2 | |||||||
| 20 | 13:52 | S 22 G 35 | 16.09 | Mostly Cloudy | FEW140 BKN250 | 21.7 | 3.9 | 21.7 | 5 | 31% | 76.02 | 1013.4 | |||||
| 20 | 12:52 | S 19 G 33 | 16.09 | Mostly Cloudy | FEW070 BKN250 | 19.4 | 3.9 | 36% | 76.15 | 1015.1 | |||||||
| 20 | 11:52 | S 19 | 16.09 | Partly Cloudy | FEW040 SCT250 | 16.7 | 3.3 | 41% | 76.25 | 1016.5 | |||||||
| 20 | 10:52 | S 15 | 16.09 | A Few Clouds | FEW250 | 13.3 | 2.8 | 49% | 76.33 | 1017.6 | |||||||
| 20 | 09:52 | S 11 | 16.09 | A Few Clouds | FEW030 FEW250 | 9.4 | 2.2 | 61% | 8 | 76.43 | 1018.8 | ||||||
| 20 | 08:52 | S 7 | 16.09 | Partly Cloudy | SCT250 | 7.2 | 1.7 | 68% | 6 | 76.48 | 1019.5 | ||||||
| 20 | 07:52 | S 7 | 16.09 | Partly Cloudy | SCT250 | 5 | 1.1 | 6.7 | 3.9 | 76% | 4 | 76.48 | 1019.6 | ||||
| 20 | 06:52 | S 9 | 16.09 | A Few Clouds | FEW250 | 3.9 | 0.6 | 79% | 2 | 76.48 | 1019.6 | ||||||
| 20 | 05:52 | S 9 | 16.09 | Fair | CLR | 5 | 0.6 | 73% | 3 | 76.48 | 1019.6 | ||||||
| 20 | 04:52 | S 9 | 16.09 | Fair | CLR | 5 | 0.6 | 73% | 3 | 76.48 | 1019.7 | ||||||
| 20 | 03:52 | S 15 | 16.09 | Fair | CLR | 5.6 | 0.6 | 71% | 3 | 76.5 | 1020.1 | ||||||
| 20 | 02:52 | S 13 | 16.09 | Fair | CLR | 6.1 | 0.6 | 68% | 4 | 76.58 | 1020.8 | ||||||
| 20 | 01:52 | S 9 | 16.09 | Fair | CLR | 6.1 | 0.6 | 11.1 | 4.4 | 68% | 4 | 76.63 | 1021.5 | ||||
| 20 | 00:52 | SE 6 | 16.09 | A Few Clouds | FEW140 FEW250 | 5 | 0 | 70% | 76.66 | 1022.0 | |||||||
| 19 | 23:52 | S 9 | 16.09 | Mostly Cloudy | BKN250 | 7.8 | 0 | 58% | 6 | 76.63 | 1021.7 | ||||||
| 19 | 22:52 | S 13 | 16.09 | Mostly Cloudy | BKN250 | 8.9 | -0.6 | 52% | 7 | 76.63 | 1021.6 | ||||||
| 19 | 21:52 | S 11 | 16.09 | Mostly Cloudy | BKN200 | 10 | -0.6 | 48% | 9 | 76.61 | 1021.5 | ||||||
| 19 | 20:52 | S 11 | 16.09 | Partly Cloudy | SCT200 | 10.6 | -1.1 | 45% | 76.58 | 1021.1 | |||||||
| 19 | 19:52 | S 11 | 16.09 | A Few Clouds | FEW070 FEW200 | 11.1 | -0.6 | 15 | 8.9 | 45% | 76.56 | 1020.8 | |||||
| 19 | 18:52 | S 13 | 16.09 | Partly Cloudy | FEW070 SCT200 | 12.8 | 0 | 42% | 76.56 | 1020.7 | |||||||
| 19 | 17:52 | SE 9 | 16.09 | Partly Cloudy | FEW060 SCT200 | 13.9 | -0.6 | 37% | 76.56 | 1020.6 | |||||||
| 19 | 16:52 | Vrbl 7 | 16.09 | Partly Cloudy | FEW060 SCT200 | 14.4 | -0.6 | 36% | 76.56 | 1020.8 | |||||||
| 19 | 15:52 | Vrbl 7 | 16.09 | Mostly Cloudy | FEW060 BKN200 | 13.9 | -1.1 | 36% | 76.61 | 1021.5 | |||||||
| 19 | 14:52 | Vrbl 6 | 16.09 | Mostly Cloudy | FEW055 BKN200 | 13.3 | -1.1 | 37% | 76.66 | 1022.2 | |||||||
| 19 | 13:52 | N 9 | 16.09 | Mostly Cloudy | BKN060 BKN110 BKN250 | 11.7 | -1.7 | 11.7 | 2.2 | 40% | 76.73 | 1023.0 | |||||
| 19 | 12:52 | Vrbl 9 | 16.09 | Mostly Cloudy | SCT110 BKN250 | 10.6 | -2.8 | 39% | 76.81 | 1024.0 | |||||||
| 19 | 11:52 | Vrbl 9 | 16.09 | Mostly Cloudy | SCT110 BKN250 | 8.3 | -3.3 | 44% | 7 | 76.84 | 1024.5 | ||||||
| 19 | 10:52 | SW 9 | 16.09 | Mostly Cloudy | BKN060 BKN250 | 6.7 | -3.3 | 49% | 5 | 76.89 | 1025.0 | ||||||
| 19 | 09:52 | S 7 | 16.09 | Mostly Cloudy | BKN060 | 3.9 | -2.8 | 62% | 2 | 76.91 | 1025.4 | ||||||
| 19 | 08:52 | S 13 | 16.09 | Mostly Cloudy | BKN060 | 2.8 | -2.8 | 67% | -0 | 76.89 | 1025.3 | ||||||
| 19 | 07:52 | S 13 | 16.09 | Mostly Cloudy | BKN060 | 2.2 | -3.3 | 2.2 | 1.7 | 67% | -1 | 76.86 | 1024.8 | ||||
| 19 | 06:52 | S 7 | 16.09 | Mostly Cloudy | BKN060 | 2.2 | -3.3 | 67% | 0 | 76.86 | 1024.7 | ||||||
| 19 | 05:52 | S 17 | 16.09 | Overcast | OVC060 | 2.2 | -3.9 | 64% | -2 | 76.81 | 1024.4 | ||||||
| 19 | 04:52 | S 7 | 16.09 | Overcast | BKN060 OVC095 | 1.7 | -3.3 | 70% | -0 | 76.84 | 1024.5 | ||||||
| 19 | 03:52 | SE 7 | 16.09 | Overcast | OVC065 | 1.7 | -3.9 | 67% | -0 | 76.86 | 1024.8 | ||||||
| 19 | 02:52 | S 7 | 16.09 | Overcast | OVC100 | 2.2 | -4.4 | 62% | 0 | 76.91 | 1025.5 | ||||||
| 19 | 01:52 | S 9 | 16.09 | Overcast | FEW060 OVC100 | 2.2 | -5 | 2.8 | 1.7 | 59% | -0 | 76.96 | 1026.2 | ||||
| 19 | 00:52 | S 11 | 16.09 | Overcast | OVC070 | 2.2 | -5.6 | 57% | -1 | 76.99 | 1026.6 | ||||||
| 18 | 23:52 | SE 9 | 16.09 | Overcast | OVC070 | 2.2 | -6.7 | 52% | -0 | 76.99 | 1026.7 | ||||||
| 18 | 22:52 | SE 15 | 16.09 | Overcast | OVC075 | 2.8 | -7.2 | 48% | -1 | 77.01 | 1026.8 | ||||||
| 18 | 21:52 | SE 13 | 16.09 | Mostly Cloudy | SCT085 BKN120 | 2.8 | -8.3 | 44% | -0 | 77.01 | 1026.9 | ||||||
| 18 | 20:52 | SE 13 | 16.09 | Partly Cloudy | FEW080 SCT100 | 2.2 | -8.9 | 44% | -1 | 77.01 | 1026.9 | ||||||
| 18 | 19:52 | SE 11 | 16.09 | Partly Cloudy | SCT100 SCT250 | 2.8 | -10 | 5 | 2.8 | 39% | 0 | 76.96 | 1026.3 | ||||
| 18 | 18:52 | SW 13 | 16.09 | A Few Clouds | FEW100 FEW250 | 3.9 | -11.7 | 31% | 1 | 76.99 | 1026.6 | ||||||
| 18 | 17:52 | SW 17 | 16.09 | A Few Clouds | FEW070 FEW250 | 5 | -11.1 | 30% | 2 | 76.99 | 1026.7 | ||||||
| 18 | 16:52 | S 11 | 16.09 | A Few Clouds | FEW070 FEW250 | 5 | -11.1 | 30% | 3 | 77.01 | 1027.1 | ||||||
| 18 | 15:52 | Vrbl 9 | 16.09 | A Few Clouds | FEW080 FEW250 | 4.4 | -11.7 | 30% | 2 | 77.06 | 1027.6 | ||||||
| 18 | 14:52 | S 17 G 33 | 16.09 | A Few Clouds | FEW075 FEW250 | 3.3 | -12.2 | 31% | -0 | 77.11 | 1028.3 | ||||||
| 18 | 13:52 | SE 19 G 33 | 16.09 | A Few Clouds | FEW075 FEW250 | 2.8 | -12.8 | 3.3 | -3.3 | 31% | -1 | 77.19 | 1029.4 | ||||
| 18 | 12:52 | E 15 | 16.09 | A Few Clouds | FEW140 FEW250 | 2.2 | -12.8 | 32% | -1 | 77.27 | 1030.3 | ||||||
| 18 | 11:52 | Calm | 16.09 | A Few Clouds | FEW250 | 0.6 | -12.8 | 36% | 77.29 | 1030.8 | |||||||
| 18 | 10:52 | Vrbl 6 | 16.09 | Mostly Cloudy | BKN140 BKN250 | -0.6 | -12.2 | 42% | 77.27 | 1030.5 | |||||||
| 18 | 09:52 | N 9 | 16.09 | Mostly Cloudy | SCT120 BKN150 BKN220 | -2.2 | -12.2 | 47% | -5 | 77.24 | 1030.1 | ||||||
| 18 | 08:52 | N 13 | 16.09 | Mostly Cloudy | BKN170 BKN220 | -2.8 | -12.2 | 49% | -7 | 77.19 | 1029.4 | ||||||
| 18 | 07:52 | N 9 | 16.09 | Mostly Cloudy | BKN250 | -3.3 | -11.7 | -3.3 | -5 | 53% | -7 | 77.22 | 1029.6 | ||||
| 18 | 06:52 | NW 17 | 16.09 | Mostly Cloudy | BKN250 | -3.9 | -11.7 | 55% | -9 | 77.22 | 1029.6 | ||||||
| Date | Time (edt) | 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) | |||||||||||||||