|
Typical Helsinki December Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 1.4 °C | |
| Average daily low | -2.9 °C | |
| Average monthly precipitation | 5.8 cm | |
| Daily chance of precipitation | 60.9% | |
|
Helsinki December Weather Records 1951–2024 |
||
|---|---|---|
| Highest temperature | 10.5 °C | December 20, 2015 |
| Lowest temperature | -29.5 °C | December 31, 1978 |
| Highest daily low | 8.1 °C | December 6, 2015 |
| Lowest daily high | -24.4 °C | December 30, 1978 |
| Hottest average high temperature | 5.6 °C | 2006 |
| Coldest average high temperature | -7.9 °C | 1978 |
| Most daily precipitation | 3.0 cm | December 12, 2017 |
| Most monthly precipitation | 12.1 cm | 2011 |
| Day | Average (°C) | Record (°C) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| December 1 | 2.8 | -1.1 | 8.5 | -15.2 |
| December 2 | 2.7 | -1.3 | 8.3 | -16.8 |
| December 3 | 2.6 | -1.4 | 8.3 | -17.9 |
| December 4 | 2.5 | -1.5 | 8.2 | -14.0 |
| December 5 | 2.4 | -1.5 | 9.7 | -16.8 |
| December 6 | 2.4 | -1.6 | 9.4 | -21.1 |
| December 7 | 2.3 | -1.7 | 9.0 | -21.3 |
| December 8 | 2.1 | -1.9 | 8.0 | -23.4 |
| December 9 | 2.0 | -2.1 | 8.1 | -24.9 |
| December 10 | 1.9 | -2.2 | 8.3 | -24.5 |
| December 11 | 1.8 | -2.4 | 8.1 | -15.5 |
| December 12 | 1.7 | -2.5 | 7.3 | -18.2 |
| December 13 | 1.6 | -2.6 | 7.8 | -22.2 |
| December 14 | 1.5 | -2.8 | 7.6 | -21.6 |
| December 15 | 1.5 | -2.9 | 9.8 | -24.8 |
| December 16 | 1.4 | -3.0 | 6.5 | -24.3 |
| December 17 | 1.3 | -3.1 | 7.2 | -22.8 |
| December 18 | 1.2 | -3.2 | 7.6 | -19.2 |
| December 19 | 1.1 | -3.3 | 7.9 | -19.4 |
| December 20 | 1.0 | -3.4 | 10.5 | -21.3 |
| December 21 | 0.9 | -3.6 | 8.7 | -21.9 |
| December 22 | 0.8 | -3.7 | 8.3 | -20.7 |
| December 23 | 0.6 | -3.9 | 8.2 | -24.3 |
| December 24 | 0.5 | -4.0 | 7.5 | -24.1 |
| December 25 | 0.5 | -4.1 | 7.2 | -24.6 |
| December 26 | 0.4 | -4.2 | 9.3 | -24.4 |
| December 27 | 0.3 | -4.3 | 9.9 | -20.8 |
| December 28 | 0.3 | -4.5 | 6.1 | -21.6 |
| December 29 | 0.2 | -4.5 | 6.5 | -25.6 |
| December 30 | 0.2 | -4.6 | 6.7 | -29.2 |
| December 31 | 0.1 | -4.6 | 7.0 | -29.5 |
| Years | Station | Coordinates |
|---|---|---|
| 1951–2024 | Helsinki Kaisaniemi Aws | location |