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| Point Forecast: Portland OR 45.53N 122.67W (Elev. 61 m) |
Last Update: 2:27 am PST Dec 9, 2021 |
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| Date | 12/09 | 12/10 | ||||||||||||||||||||||
| Hour (PST) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°C) | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 4 | 5 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 4 | 3 | 3 | 3 | 3 | 4 | 4 | 3 |
| Dewpoint (°C) | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 2 | 2 | 2 | 3 | 3 | 3 | 3 |
| Wind Chill (°C) | 0 | 0 | -1 | -1 | -1 | -2 | -1 | 0 | 2 | 2 | 3 | 4 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Surface Wind (mph) | 5 | 5 | 6 | 6 | 7 | 6 | 7 | 8 | 8 | 8 | 9 | 9 | 6 | 6 | 6 | 3 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 |
| Wind Dir | SSW | SSW | S | S | S | SSW | SSW | SSW | SSW | SSW | SSW | WSW | WSW | WSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 66 | 66 | 75 | 75 | 75 | 85 | 85 | 85 | 89 | 89 | 89 | 78 | 78 | 78 | 64 | 64 | 64 | 64 | 64 | 64 | 71 | 71 | 71 | 71 |
| Precipitation Potential (%) | 72 | 72 | 90 | 90 | 90 | 90 | 90 | 90 | 97 | 97 | 97 | 97 | 97 | 97 | 70 | 70 | 70 | 70 | 70 | 70 | 52 | 52 | 52 | 52 |
| Relative Humidity (%) | 96 | 96 | 96 | 96 | 97 | 97 | 96 | 94 | 92 | 90 | 88 | 87 | 86 | 86 | 87 | 88 | 90 | 92 | 93 | 93 | 93 | 93 | 94 | 94 |
| Rain | Lkly | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 12/11 | |||||||||||||||||||||||
| Hour (PST) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°C) | 3 | 4 | 3 | 3 | 3 | 3 | 4 | 5 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 8 |
| Dewpoint (°C) | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 4 | 4 |
| Wind Chill (°C) | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 5 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 |
| Surface Wind (mph) | 7 | 8 | 8 | 7 | 8 | 8 | 9 | 9 | 10 | 11 | 13 | 13 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 15 | 15 | 15 | 16 |
| Wind Dir | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 71 | 71 | 78 | 78 | 78 | 87 | 87 | 87 | 88 | 88 | 88 | 89 | 89 | 89 | 87 | 87 | 87 | 86 | 86 | 86 | 86 | 86 | 86 | 86 |
| Precipitation Potential (%) | 52 | 52 | 67 | 67 | 67 | 67 | 67 | 67 | 73 | 73 | 73 | 73 | 73 | 73 | 49 | 49 | 49 | 49 | 49 | 49 | 69 | 69 | 69 | 69 |
| Relative Humidity (%) | 94 | 94 | 94 | 94 | 94 | 94 | 93 | 92 | 91 | 90 | 89 | 88 | 87 | 90 | 90 | 89 | 87 | 85 | 83 | 82 | 81 | 80 | 79 | 79 |
| Rain | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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