|
Typical Richland December Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 40.7 °F | |
| Average daily low | 27.5 °F | |
| Average monthly precipitation | 1.0 inches | |
| Daily chance of precipitation | 32.7% | |
|
Richland December Weather Records 1894–2024 |
||
|---|---|---|
| Highest temperature | 71 °F | December 1, 2021 |
| Lowest temperature | -29 °F | December 13, 1919 |
| Highest daily low | 61 °F | December 18, 1917 |
| Lowest daily high | -2 °F | December 14, 1919 |
| Hottest average high temperature | 51.7 °F | 1917 |
| Coldest average high temperature | 28.1 °F | 1985 |
| Most daily precipitation | 1.1 inches | December 31, 1913 |
| Most monthly precipitation | 2.8 inches | 1973 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| December 1 | 43.9 | 29.0 | 71 | 4 |
| December 2 | 43.6 | 28.7 | 67 | 6 |
| December 3 | 43.3 | 28.5 | 67 | 2 |
| December 4 | 42.9 | 28.2 | 68 | 1 |
| December 5 | 42.7 | 28.1 | 66 | 2 |
| December 6 | 42.5 | 28.0 | 61 | -1 |
| December 7 | 42.4 | 28.0 | 63 | 2 |
| December 8 | 42.2 | 27.8 | 69 | -4 |
| December 9 | 41.9 | 27.7 | 69 | -4 |
| December 10 | 41.7 | 27.6 | 66 | -5 |
| December 11 | 41.4 | 27.6 | 63 | -8 |
| December 12 | 41.2 | 27.6 | 70 | -25 |
| December 13 | 41.1 | 27.6 | 66 | -29 |
| December 14 | 41.0 | 27.6 | 64 | -22 |
| December 15 | 40.9 | 27.6 | 65 | -14 |
| December 16 | 40.7 | 27.5 | 65 | -14 |
| December 17 | 40.5 | 27.3 | 61 | -14 |
| December 18 | 40.4 | 27.2 | 71 | -10 |
| December 19 | 40.3 | 27.1 | 62 | -8 |
| December 20 | 40.2 | 27.0 | 65 | 1 |
| December 21 | 40.1 | 26.9 | 68 | -6 |
| December 22 | 40.1 | 26.8 | 66 | -16 |
| December 23 | 40.1 | 26.8 | 63 | -10 |
| December 24 | 40.1 | 26.8 | 64 | -13 |
| December 25 | 40.1 | 26.8 | 68 | -14 |
| December 26 | 40.1 | 26.8 | 71 | -7 |
| December 27 | 40.0 | 26.8 | 65 | 0 |
| December 28 | 40.0 | 26.7 | 67 | -8 |
| December 29 | 39.9 | 26.6 | 65 | -5 |
| December 30 | 39.8 | 26.5 | 62 | -10 |
| December 31 | 39.7 | 26.5 | 57 | -5 |