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| Point Forecast: 4 Miles S Clayton CA 37.87N 121.92W (Elev. 2818 ft) |
Last Update: 2:28 am PDT May 7, 2021 |
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| Date | 05/07 | 05/08 | ||||||||||||||||||||||
| Hour (PDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 47 | 46 | 45 | 46 | 48 | 50 | 52 | 53 | 54 | 57 | 59 | 61 | 62 | 62 | 62 | 61 | 60 | 59 | 58 | 58 | 57 | 57 | 56 | 56 |
| Dewpoint (°F) | 32 | 32 | 31 | 31 | 31 | 30 | 31 | 33 | 34 | 36 | 36 | 36 | 35 | 34 | 34 | 35 | 36 | 36 | 36 | 34 | 32 | 31 | 30 | 29 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 16 | 14 | 11 | 14 | 16 | 15 | 15 | 13 | 11 | 10 | 10 | 10 | 10 | 10 | 11 | 13 | 14 | 13 | 15 | 21 | 25 | 29 | 31 | 31 |
| Wind Dir | W | WNW | NW | NW | NNW | NNW | NNW | NNW | NNW | NW | NW | NW | WNW | WNW | WNW | WNW | WNW | NW | N | N | N | N | N | N |
| Gust | 23 | 21 | 18 | 21 | 23 | 23 | 22 | 18 | 20 | 21 | 20 | 23 | 30 | 38 | 44 | 46 | 46 | |||||||
| Sky Cover (%) | 25 | 22 | 12 | 13 | 10 | 3 | 3 | 1 | 2 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 3 | 4 | 4 | 2 | 2 | 1 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 57 | 58 | 58 | 57 | 52 | 46 | 45 | 46 | 46 | 46 | 42 | 39 | 36 | 35 | 35 | 38 | 40 | 43 | 43 | 41 | 38 | 37 | 36 | 36 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/09 | |||||||||||||||||||||||
| Hour (PDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 56 | 56 | 55 | 56 | 56 | 58 | 59 | 62 | 65 | 68 | 70 | 72 | 73 | 74 | 74 | 73 | 71 | 70 | 69 | 68 | 67 | 67 | 66 | 65 |
| Dewpoint (°F) | 26 | 25 | 23 | 23 | 22 | 21 | 21 | 22 | 22 | 22 | 21 | 20 | 20 | 22 | 24 | 28 | 31 | 34 | 35 | 36 | 36 | 36 | 36 | 37 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 30 | 28 | 28 | 28 | 29 | 26 | 26 | 26 | 25 | 25 | 25 | 23 | 23 | 23 | 21 | 21 | 21 | 20 | 20 | 20 | 22 | 22 | 22 | 21 |
| Wind Dir | N | N | N | N | N | N | N | N | N | N | N | N | N | N | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW |
| Gust | 44 | 41 | 38 | 39 | 34 | 30 | 33 | 38 | 38 | 38 | 34 | 34 | 34 | 32 | 32 | 32 | 30 | 30 | 30 | 32 | 32 | 32 | 30 | |
| Sky Cover (%) | 1 | 3 | 2 | 3 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 12 | 12 | 12 | 5 | 5 | 5 | 1 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 31 | 30 | 29 | 28 | 26 | 24 | 23 | 21 | 20 | 18 | 16 | 14 | 14 | 14 | 16 | 19 | 23 | 26 | 29 | 30 | 32 | 32 | 34 | 35 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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