Weather observations for the past three days for
Washington/Dulles International Airport, DC
| 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. | ||||||||||||||||
| 09 | 19:52 | S 13 G 22 | 10.00 | Overcast | OVC020 | 28.9 | 21 | 72% | 19 | 30.02 | 1017.1 | ||||||
| 09 | 18:52 | S 16 G 23 | 10.00 | Overcast | SCT022 OVC090 | 28.9 | 19 | 33.1 | 28 | 66% | 18 | 30.05 | 1017.9 | ||||
| 09 | 17:52 | S 15 G 20 | 10.00 | Overcast | BKN095 OVC200 | 30 | 16 | 56% | 20 | 30.06 | 1018.2 | ||||||
| 09 | 16:52 | S 12 G 20 | 10.00 | Mostly Cloudy | BKN110 BKN250 | 30.9 | 14 | 49% | 22 | 30.06 | 1018.4 | ||||||
| 09 | 15:52 | S 14 | 10.00 | Mostly Cloudy | SCT120 BKN250 | 32 | 12 | 43% | 23 | 30.07 | 1018.8 | ||||||
| 09 | 14:52 | S 13 | 10.00 | Partly Cloudy | FEW041 SCT200 | 32 | 10 | 40% | 23 | 30.09 | 1019.4 | ||||||
| 09 | 13:52 | S 9 | 10.00 | Mostly Cloudy | BKN041 | 30 | 8.1 | 39% | 22 | 30.13 | 1020.7 | ||||||
| 09 | 12:52 | S 7 | 10.00 | Overcast | OVC038 | 28.9 | 7 | 28.9 | 12.9 | 39% | 23 | 30.15 | 1021.4 | ||||
| 09 | 11:52 | S 9 | 10.00 | Overcast | OVC038 | 27 | 6.1 | 41% | 19 | 30.2 | 1023.2 | ||||||
| 09 | 10:52 | S 5 | 10.00 | Overcast | OVC040 | 25 | 6.1 | 44% | 20 | 30.26 | 1025.2 | ||||||
| 09 | 09:52 | S 3 | 10.00 | Overcast | OVC044 | 23 | 3.9 | 44% | 30.28 | 1025.9 | |||||||
| 09 | 08:52 | Calm | 10.00 | Overcast | OVC044 | 21 | 3.9 | 47% | 30.28 | 1025.8 | |||||||
| 09 | 07:52 | Calm | 10.00 | Overcast | OVC047 | 19.9 | 7 | 57% | 30.28 | 1025.6 | |||||||
| 09 | 06:52 | Calm | 10.00 | Partly Cloudy | SCT050 | 14 | 5 | 23 | 14 | 67% | 30.29 | 1026.2 | |||||
| 09 | 05:52 | N 5 | 10.00 | A Few Clouds | FEW050 | 17.1 | 5 | 59% | 11 | 30.28 | 1025.7 | ||||||
| 09 | 04:52 | Calm | 10.00 | Fair | CLR | 16 | 6.1 | 65% | 30.27 | 1025.5 | |||||||
| 09 | 03:52 | NW 3 | 10.00 | Fair | CLR | 16 | 6.1 | 65% | 30.28 | 1025.7 | |||||||
| 09 | 02:52 | Calm | 10.00 | Fair | CLR | 17.1 | 5 | 59% | 30.27 | 1025.5 | |||||||
| 09 | 01:52 | NE 6 | 10.00 | Partly Cloudy | FEW120 SCT250 | 19.9 | 3.9 | 50% | 13 | 30.27 | 1025.6 | ||||||
| 09 | 00:52 | N 7 | 10.00 | Mostly Cloudy | SCT120 BKN250 | 23 | 3.9 | 28 | 23 | 44% | 16 | 30.29 | 1026.1 | ||||
| 08 | 23:52 | N 7 | 10.00 | Mostly Cloudy | BKN120 BKN250 | 24.1 | 3.9 | 42% | 17 | 30.31 | 1026.5 | ||||||
| 08 | 22:52 | N 7 | 10.00 | Mostly Cloudy | BKN140 BKN250 | 25 | 3 | 39% | 18 | 30.31 | 1026.7 | ||||||
| 08 | 21:52 | N 6 | 10.00 | Mostly Cloudy | BKN120 BKN250 | 25 | -0 | 33% | 19 | 30.31 | 1026.6 | ||||||
| 08 | 20:52 | NE 8 | 10.00 | Overcast | SCT100 OVC140 | 26.1 | -0 | 32% | 18 | 30.31 | 1026.6 | ||||||
| 08 | 19:52 | N 9 | 10.00 | Overcast | BKN110 OVC115 | 27 | -0 | 31% | 19 | 30.31 | 1026.5 | ||||||
| 08 | 18:52 | N 10 | 10.00 | Overcast | OVC100 | 28 | -0 | 33.1 | 28 | 29% | 19 | 30.3 | 1026.3 | ||||
| 08 | 17:52 | N 10 | 10.00 | Overcast | OVC085 | 28.9 | 3.9 | 34% | 20 | 30.28 | 1025.8 | ||||||
| 08 | 16:52 | N 10 | 10.00 | Overcast | OVC100 | 28.9 | 3.9 | 34% | 20 | 30.25 | 1024.8 | ||||||
| 08 | 15:52 | N 12 G 18 | 10.00 | Overcast | OVC090 | 30 | 5 | 34% | 21 | 30.25 | 1024.6 | ||||||
| 08 | 14:52 | N 10 | 10.00 | Overcast | OVC090 | 30.9 | 7 | 36% | 23 | 30.23 | 1024.0 | ||||||
| 08 | 13:52 | N 9 G 18 | 10.00 | Overcast | OVC095 | 32 | 8.1 | 36% | 25 | 30.23 | 1023.9 | ||||||
| 08 | 12:52 | N 10 | 10.00 | Overcast | BKN090 OVC140 | 33.1 | 9 | 35.1 | 32 | 36% | 26 | 30.22 | 1023.5 | ||||
| 08 | 11:52 | N 14 | 10.00 | A Few Clouds | FEW085 | 33.1 | 12 | 42% | 24 | 30.21 | 1023.5 | ||||||
| 08 | 10:52 | NE 18 G 25 | 10.00 | Overcast | OVC085 | 33.1 | 12 | 42% | 23 | 30.23 | 1024.1 | ||||||
| 08 | 09:52 | N 14 | 10.00 | Overcast | BKN080 OVC090 | 32 | 12.9 | 45% | 23 | 30.25 | 1024.5 | ||||||
| 08 | 08:52 | NE 16 G 24 | 10.00 | Overcast | FEW045 OVC075 | 32 | 14 | 47% | 22 | 30.24 | 1024.1 | ||||||
| 08 | 07:52 | N 17 G 28 | 10.00 | Overcast | FEW044 SCT075 OVC090 | 33.1 | 19 | 56% | 23 | 30.21 | 1023.1 | ||||||
| 08 | 06:52 | N 15 G 25 | 10.00 | Overcast | OVC090 | 35.1 | 21 | 37 | 26.1 | 57% | 26 | 30.19 | 1022.4 | ||||
| 08 | 05:52 | N 12 | 10.00 | Overcast | OVC040 | 37 | 28 | 70% | 30 | 30.15 | 1021.2 | ||||||
| 08 | 04:52 | N 8 | 10.00 | Overcast | OVC042 | 36 | 28.9 | 76% | 30 | 30.14 | 1020.7 | ||||||
| 08 | 03:52 | Calm | 9.00 | Overcast | BKN100 OVC230 | 28.9 | 28 | 96% | 30.13 | 1020.4 | |||||||
| 08 | 02:52 | Calm | 7.00 | Overcast | FEW042 SCT120 OVC230 | 28.9 | 28 | 96% | 30.12 | 1020.0 | |||||||
| 08 | 01:52 | NW 3 | 6.00 | Fog/Mist | FEW070 OVC230 | 30 | 28.9 | 96% | 30.1 | 1019.4 | |||||||
| 08 | 00:52 | S 3 | 6.00 | Fog/Mist | BKN065 | 28.9 | 28 | 34 | 27 | 96% | 30.09 | 1019.2 | |||||
| 07 | 23:52 | Calm | 6.00 | Fog/Mist | SCT060 BKN240 | 30 | 28.9 | 96% | 30.08 | 1018.8 | |||||||
| 07 | 22:52 | Calm | 7.00 | Fair | CLR | 30 | 28.9 | 96% | 30.07 | 1018.4 | |||||||
| 07 | 21:52 | Calm | 7.00 | Mostly Cloudy | BKN055 | 28 | 27 | 96% | 30.06 | 1018.3 | |||||||
| 07 | 20:52 | Calm | 8.00 | Partly Cloudy | SCT060 | 28.9 | 27 | 92% | 30.07 | 1018.6 | |||||||
| 07 | 19:52 | S 5 | 10.00 | Fair | CLR | 33.1 | 30 | 89% | 29 | 30.06 | 1018.3 | ||||||
| 07 | 18:52 | SW 3 | 10.00 | Fair | CLR | 34 | 30 | 44.1 | 34 | 85% | 30.08 | 1018.9 | |||||
| 07 | 17:52 | S 6 | 10.00 | A Few Clouds | FEW250 | 37 | 30 | 76% | 33 | 30.08 | 1019.0 | ||||||
| 07 | 16:52 | S 6 | 10.00 | A Few Clouds | FEW250 | 39 | 30 | 70% | 35 | 30.06 | 1018.4 | ||||||
| 07 | 15:52 | SW 5 | 10.00 | A Few Clouds | FEW035 FEW250 | 43 | 30 | 60% | 41 | 30.05 | 1017.9 | ||||||
| 07 | 14:52 | SW 8 | 10.00 | Partly Cloudy | FEW035 SCT250 | 44.1 | 28.9 | 55% | 40 | 30.05 | 1017.8 | ||||||
| 07 | 13:52 | SW 9 | 10.00 | Mostly Cloudy | FEW035 FEW230 BKN250 | 43 | 28.9 | 58% | 38 | 30.07 | 1018.6 | ||||||
| 07 | 12:52 | S 8 | 10.00 | Mostly Cloudy | FEW030 BKN230 | 42.1 | 28 | 43 | 26.1 | 58% | 38 | 30.1 | 1019.3 | ||||
| 07 | 11:52 | SW 8 | 10.00 | Partly Cloudy | FEW025 FEW220 SCT250 | 42.1 | 30 | 62% | 38 | 30.12 | 1020.2 | ||||||
| 07 | 10:52 | SW 3 | 10.00 | Mostly Cloudy | FEW180 BKN250 | 37 | 32 | 82% | 30.15 | 1021.2 | |||||||
| 07 | 09:52 | Calm | 8.00 | Partly Cloudy | FEW180 SCT250 | 33.1 | 30.9 | 92% | 30.15 | 1021.2 | |||||||
| 07 | 08:52 | S 3 | 5.00 | Fog/Mist | FEW036 FEW220 BKN250 | 28.9 | 28 | 96% | 30.14 | 1020.8 | |||||||
| 07 | 07:52 | SW 3 | 4.00 | Fog/Mist | FEW036 SCT150 BKN220 | 26.1 | 25 | 96% | 30.13 | 1020.5 | |||||||
| 07 | 06:52 | Calm | 0.50 | Freezing Fog | BKN002 BKN007 BKN012 | 26.1 | 25 | 28.9 | 24.1 | 96% | 30.13 | 1020.4 | |||||
| 07 | 05:52 | Calm | 1.50 | Fog/Mist | BKN001 | 26.1 | 25 | 96% | 30.12 | 1020.2 | |||||||
| 07 | 04:52 | Calm | 4.00 | Fog/Mist | SCT200 | 25 | 24.1 | 96% | 30.1 | 1019.6 | |||||||
| 07 | 03:52 | Calm | 5.00 | Fog/Mist | OVC200 | 26.1 | 25 | 96% | 30.09 | 1019.0 | |||||||
| 07 | 02:52 | SW 3 | 3.00 | Fog/Mist | BKN190 | 25 | 25 | 100% | 30.08 | 1018.7 | |||||||
| 07 | 01:52 | SE 3 | 4.00 | Fog/Mist | BKN190 | 28 | 27 | 96% | 30.05 | 1017.8 | |||||||
| 07 | 00:52 | W 5 | 6.00 | Fog/Mist | FEW055 SCT190 | 28.9 | 28 | 32 | 27 | 96% | 25 | 30.07 | 1018.4 | ||||
| 06 | 23:52 | Calm | 5.00 | Fog/Mist | FEW055 | 30 | 28.9 | 96% | 30.06 | 1018.0 | |||||||
| 06 | 22:52 | Calm | 5.00 | Fog/Mist | BKN055 | 30.9 | 30 | 96% | 30.03 | 1017.3 | |||||||
| 06 | 21:52 | S 3 | 8.00 | Mostly Cloudy | BKN055 | 28.9 | 28.9 | 100% | 30.02 | 1016.9 | |||||||
| 06 | 20:52 | Calm | 7.00 | Mostly Cloudy | BKN060 | 30 | 30 | 100% | 30 | 1016.2 | |||||||
| 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) | |||||||||||||||