|
Typical San Luis Obispo December Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 65.2 °F | |
| Average daily low | 41.2 °F | |
| Average monthly precipitation | 3.3 inches | |
| Daily chance of precipitation | 27.1% | |
|
San Luis Obispo December Weather Records 1893–2024 |
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|---|---|---|
| Highest temperature | 92 °F | December 4, 1958 |
| Lowest temperature | 17 °F | December 23, 1990 |
| Highest daily low | 63 °F | December 12, 1958 |
| Lowest daily high | 40 °F | December 11, 1932 |
| Hottest average high temperature | 73.7 °F | 2017 |
| Coldest average high temperature | 56.5 °F | 1971 |
| Most daily precipitation | 4.5 inches | December 28, 1931 |
| Most monthly precipitation | 14.4 inches | 1931 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| December 1 | 67.6 | 42.9 | 88 | 30 |
| December 2 | 67.3 | 42.7 | 85 | 33 |
| December 3 | 67.1 | 42.6 | 86 | 31 |
| December 4 | 67.0 | 42.5 | 92 | 30 |
| December 5 | 66.7 | 42.3 | 87 | 31 |
| December 6 | 66.5 | 42.1 | 84 | 25 |
| December 7 | 66.4 | 41.9 | 85 | 29 |
| December 8 | 66.2 | 41.8 | 89 | 29 |
| December 9 | 66.0 | 41.7 | 86 | 28 |
| December 10 | 65.8 | 41.7 | 85 | 30 |
| December 11 | 65.6 | 41.5 | 84 | 24 |
| December 12 | 65.5 | 41.4 | 86 | 26 |
| December 13 | 65.4 | 41.3 | 83 | 28 |
| December 14 | 65.4 | 41.2 | 82 | 29 |
| December 15 | 65.3 | 41.2 | 82 | 31 |
| December 16 | 65.2 | 41.1 | 85 | 28 |
| December 17 | 65.1 | 41.0 | 85 | 28 |
| December 18 | 65.0 | 41.0 | 82 | 24 |
| December 19 | 65.0 | 41.0 | 78 | 24 |
| December 20 | 64.9 | 40.9 | 80 | 24 |
| December 21 | 64.9 | 40.8 | 80 | 30 |
| December 22 | 64.9 | 40.7 | 78 | 26 |
| December 23 | 64.8 | 40.7 | 79 | 17 |
| December 24 | 64.8 | 40.7 | 84 | 20 |
| December 25 | 64.8 | 40.7 | 84 | 27 |
| December 26 | 64.8 | 40.7 | 85 | 26 |
| December 27 | 64.8 | 40.7 | 85 | 29 |
| December 28 | 64.8 | 40.7 | 82 | 30 |
| December 29 | 64.8 | 40.8 | 84 | 29 |
| December 30 | 64.9 | 40.8 | 81 | 28 |
| December 31 | 64.9 | 40.8 | 85 | 30 |