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| Point Forecast: West Chatham MA 41.68N 69.99W (Elev. 33 ft) |
Last Update: 3:49 am EST Dec 10, 2019 |
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| Date | 12/10 | 12/11 | ||||||||||||||||||||||
| Hour (EST) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 54 | 56 | 56 | 55 | 57 | 57 | 56 | 56 | 56 | 57 | 55 | 52 | 53 | 53 | 53 | 53 | 52 | 49 | 48 | 44 | 42 | 40 | 38 | 36 |
| Dewpoint (°F) | 53 | 52 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 50 | 50 | 50 | 49 | 47 | 45 | 44 | 41 | 38 | 36 | 35 | 34 |
| Wind Chill (°F) | 45 | 44 | 38 | 35 | 32 | 30 | 28 | |||||||||||||||||
| Surface Wind (mph) | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 15 | 14 | 13 | 10 | 10 | 9 | 9 | 9 | 10 | 13 | 14 | 13 | 11 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | NW | NW | NW | NW | NW | NW |
| Gust | 37 | 36 | 36 | 34 | 33 | 32 | 31 | 31 | 32 | 33 | 32 | 30 | 30 | 26 | 22 | 20 | 20 | 20 | 20 | |||||
| Sky Cover (%) | 99 | 99 | 98 | 99 | 98 | 98 | 98 | 98 | 98 | 98 | 99 | 99 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 99 |
| Precipitation Potential (%) | 39 | 37 | 5 | 11 | 7 | 8 | 8 | 10 | 13 | 47 | 81 | 82 | 67 | 90 | 79 | 67 | 61 | 67 | 56 | 64 | 71 | 79 | 79 | 78 |
| Relative Humidity (%) | 96 | 86 | 83 | 86 | 80 | 80 | 83 | 83 | 83 | 80 | 86 | 96 | 89 | 89 | 89 | 86 | 83 | 86 | 86 | 89 | 86 | 85 | 89 | 92 |
| Rain | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | Chc | Ocnl | Ocnl | Lkly | Ocnl | Ocnl | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 12/12 | |||||||||||||||||||||||
| Hour (EST) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 35 | 35 | 35 | 35 | 34 | 33 | 32 | 32 | 33 | 33 | 33 | 34 | 34 | 34 | 35 | 35 | 32 | 30 | 30 | 29 | 29 | 29 | 28 | 28 |
| Dewpoint (°F) | 33 | 33 | 32 | 31 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 25 | 24 | 23 | 21 | 20 |
| Wind Chill (°F) | 27 | 27 | 27 | 27 | 27 | 25 | 24 | 24 | 25 | 25 | 26 | 28 | 29 | 28 | 28 | 28 | 24 | 20 | 19 | 18 | 17 | 17 | 16 | 15 |
| Surface Wind (mph) | 11 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 9 | 9 | 8 | 7 | 6 | 7 | 8 | 9 | 10 | 13 | 14 | 15 | 16 | 17 | 17 | 18 |
| Wind Dir | NW | NW | NW | NW | NW | NW | N | NW | NW | NW | NW | NW | W | W | W | W | W | W | W | W | W | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 99 | 99 | 100 | 100 | 100 | 100 | 99 | 98 | 97 | 96 | 88 | 80 | 72 | 67 | 62 | 57 | 50 | 42 | 35 | 34 | 33 | 32 | 23 | 15 |
| Precipitation Potential (%) | 78 | 89 | 100 | 100 | 100 | 92 | 84 | 67 | 51 | 34 | 27 | 21 | 14 | 12 | 9 | 7 | 5 | 4 | 2 | 2 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 92 | 92 | 89 | 85 | 85 | 89 | 92 | 88 | 85 | 85 | 85 | 78 | 78 | 78 | 72 | 72 | 81 | 85 | 85 | 85 | 81 | 78 | 75 | 71 |
| Rain | Ocnl | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Lkly | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | Ocnl | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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