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| Point Forecast: Washington DC, Reagan National Airport VA 38.84N 77.03W (Elev. 3 ft) |
Last Update: 10:29 pm EDT Apr 18, 2024 |
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| Date | 04/19 | |||||||||||||||||||||||
| Hour (EDT) | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Temperature (°F) | 58 | 57 | 55 | 54 | 52 | 52 | 51 | 51 | 52 | 54 | 55 | 58 | 60 | 62 | 64 | 65 | 65 | 65 | 65 | 63 | 62 | 60 | 59 | 59 |
| Dewpoint (°F) | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 46 | 46 | 47 | 48 | 48 | 49 | 50 | 49 | 49 | 50 | 50 | 50 | 50 |
| Wind Chill (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 6 | 5 | 6 | 6 | 7 | 7 | 6 | 7 | 7 | 8 | 8 | 8 | 7 | 6 | 6 | 5 | 3 |
| Wind Dir | E | E | E | E | E | E | E | E | E | E | E | SE | SE | SE | SE | SE | SE | SE | S | S | SE | SE | SE | SE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 24 | 36 | 48 | 71 | 91 | 91 | 97 | 98 | 98 | 99 | 99 | 99 | 97 | 92 | 91 | 88 | 85 | 82 | 78 | 74 | 70 | 71 | 72 | 73 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 5 | 5 | 5 | 30 | 30 | 30 | 31 | 31 | 31 | 45 | 45 | 45 | 45 |
| Relative Humidity (%) | 62 | 64 | 66 | 69 | 74 | 74 | 77 | 80 | 77 | 71 | 69 | 64 | 60 | 58 | 56 | 54 | 56 | 58 | 56 | 60 | 65 | 69 | 72 | 72 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Fog | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 04/20 | |||||||||||||||||||||||
| Hour (EDT) | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Temperature (°F) | 58 | 58 | 57 | 57 | 56 | 56 | 56 | 55 | 56 | 58 | 60 | 62 | 64 | 66 | 67 | 68 | 69 | 69 | 68 | 65 | 63 | 61 | 59 | 57 |
| Dewpoint (°F) | 50 | 50 | 50 | 50 | 49 | 48 | 47 | 46 | 44 | 42 | 41 | 39 | 38 | 37 | 36 | 36 | 35 | 35 | 35 | 34 | 34 | 33 | 33 | 32 |
| Wind Chill (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 2 | 3 | 5 | 5 | 5 | 6 | 7 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 13 | 13 | 13 | 10 | 9 | 8 | 8 | 7 |
| Wind Dir | SW | SW | NW | NW | NW | NW | N | N | N | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | 20 | 21 | 22 | 21 | ||||||||||||||||||||
| Sky Cover (%) | 75 | 78 | 80 | 76 | 70 | 65 | 63 | 63 | 63 | 60 | 47 | 40 | 37 | 36 | 34 | 32 | 28 | 24 | 20 | 18 | 17 | 18 | 19 | 21 |
| Precipitation Potential (%) | 45 | 45 | 30 | 30 | 30 | 30 | 30 | 30 | 7 | 7 | 7 | 7 | 7 | 7 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 75 | 75 | 77 | 77 | 77 | 74 | 72 | 72 | 64 | 55 | 49 | 43 | 38 | 34 | 32 | 31 | 28 | 28 | 29 | 31 | 34 | 35 | 37 | 38 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Fog | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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