|
Typical Seattle December Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 46.1 °F | |
| Average daily low | 36.6 °F | |
| Average monthly precipitation | 5.7 inches | |
| Average monthly snow | 1.6 inches | |
| Daily chance of precipitation | 59.5% | |
| Daily chance of snow | 4.8% | |
|
Seattle December Weather Records 1894–2024 |
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|---|---|---|
| Highest temperature | 66 °F | December 10, 2014 |
| Lowest temperature | 6 °F | December 30, 1968 |
| Highest daily low | 55 °F | December 26, 1980 |
| Lowest daily high | 17 °F | December 29, 1968 |
| Hottest average high temperature | 52.0 °F | 1939 |
| Coldest average high temperature | 40.1 °F | 1990 |
| Most daily precipitation | 3.8 inches | December 3, 2007 |
| Most monthly precipitation | 15.3 inches | 1933 |
| Most daily snow | 9.3 inches | December 31, 1968 |
| Most monthly snow | 22.1 inches | 1968 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| December 1 | 47.7 | 37.7 | 60 | 20 |
| December 2 | 47.5 | 37.6 | 60 | 25 |
| December 3 | 47.4 | 37.5 | 60 | 27 |
| December 4 | 47.2 | 37.3 | 65 | 20 |
| December 5 | 47.0 | 37.3 | 62 | 23 |
| December 6 | 47.0 | 37.2 | 58 | 19 |
| December 7 | 46.9 | 37.2 | 58 | 18 |
| December 8 | 46.8 | 37.1 | 60 | 13 |
| December 9 | 46.7 | 37.0 | 61 | 18 |
| December 10 | 46.6 | 37.0 | 66 | 16 |
| December 11 | 46.5 | 36.8 | 59 | 16 |
| December 12 | 46.3 | 36.7 | 60 | 12 |
| December 13 | 46.2 | 36.7 | 59 | 16 |
| December 14 | 46.2 | 36.7 | 59 | 20 |
| December 15 | 46.2 | 36.6 | 63 | 18 |
| December 16 | 46.1 | 36.5 | 57 | 10 |
| December 17 | 46.0 | 36.5 | 57 | 11 |
| December 18 | 46.0 | 36.5 | 58 | 12 |
| December 19 | 46.0 | 36.5 | 58 | 15 |
| December 20 | 46.0 | 36.5 | 60 | 14 |
| December 21 | 46.0 | 36.5 | 63 | 12 |
| December 22 | 46.0 | 36.5 | 61 | 14 |
| December 23 | 46.0 | 36.4 | 58 | 9 |
| December 24 | 46.0 | 36.5 | 62 | 16 |
| December 25 | 46.0 | 36.5 | 60 | 18 |
| December 26 | 46.1 | 36.5 | 62 | 20 |
| December 27 | 46.0 | 36.5 | 60 | 17 |
| December 28 | 46.0 | 36.5 | 61 | 12 |
| December 29 | 46.0 | 36.5 | 63 | 8 |
| December 30 | 46.0 | 36.5 | 58 | 6 |
| December 31 | 46.0 | 36.4 | 58 | 13 |