Average temperature in December is -3.3 °C
Average daytime temperature is -1.4 °C
Average night temperature is -5 °C
Absolute maximum temperature: 5.3 °C
Absolute minimum temperature: -14.1 °C
Number of sunny days: 6
Number of rainy days: 12
Number of snow days: 13
Precipitation sum: 66 mm
* Weather data for Ostrov Russia is based on climate observations for 2023 year
| December (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | -3.3 | -6.5 | -7.8 | -7.7 | -7.6 | -8 | -5.8 | -7.9 | -7.7 | -6.2 | -1.7 | 0.2 | 0.4 | 0.1 | -2.6 | 1.9 | 4.4 | 3.3 | 5.3 | 2.4 | 1 | 1.9 | -0.2 | -0.1 | 1.3 | -0.5 | -0.7 | 0.7 | 3.1 | 3.3 | 0.9 |
| Apparent max temperature | -7 | -10.6 | -11.8 | -11.3 | -11.7 | -12 | -10 | -13 | -13.1 | -11.2 | -6.5 | -3.7 | -2.6 | -2.4 | -6.2 | -3.3 | -1.2 | -0.3 | 0.4 | -2.6 | -3.4 | -2.3 | -4 | -4.3 | -2.3 | -4.2 | -5.3 | -4 | -1.1 | -0.3 | -3.5 |
| Mean temperature | -4.7 | -7.7 | -9 | -9.7 | -9.2 | -10.3 | -8 | -9.6 | -9.2 | -7.1 | -3.9 | -0.9 | 0 | -1.1 | -4.3 | -2.3 | 2.1 | 2.7 | 3.4 | 1.3 | 0.3 | 1.2 | -0.9 | -1.3 | -1.2 | -2.5 | -2.5 | -2.6 | 2.5 | 2.1 | -5.6 |
| Apparent mean temperature | -10.6 | -13.1 | -14.7 | -16.3 | -16.2 | -18.4 | -14.3 | -15.3 | -15.4 | -13.2 | -12.4 | -6.9 | -4 | -6 | -10.9 | -9.5 | -4.3 | -1.6 | -3 | -3.7 | -6.1 | -5.2 | -6.5 | -6.9 | -8.1 | -8.9 | -9.7 | -11.3 | -3.2 | -3.1 | -14.1 |
| Minimum temperature | -6.6 | -9.3 | -10.4 | -11.9 | -11.9 | -14.1 | -9.6 | -10.3 | -10.4 | -7.9 | -7.1 | -2.1 | -0.9 | -2.8 | -5.8 | -5 | 0.4 | 1.7 | 1.6 | 0.5 | -0.7 | -0.1 | -1.9 | -2.2 | -2.6 | -5 | -5.9 | -7.1 | 1.2 | 0.6 | -9.2 |
| Apparent min temperature | -8.8 | -11.6 | -13.1 | -13.6 | -13.2 | -14.6 | -12.8 | -14.8 | -14.3 | -12.3 | -9 | -5.3 | -3.5 | -4.2 | -8.9 | -6.7 | -2.6 | -0.9 | -1.4 | -3.1 | -4.4 | -3.6 | -5 | -5.5 | -6.2 | -6.8 | -7 | -7 | -1.8 | -1.6 | -10.7 |
| December | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 7.1 | 7.1 | 7 | 7 | 7 | 6.9 | 6.9 | 6.9 | 6.8 | 6.8 | 6.8 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 |
| Sunshine duration (h) | 0 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.6 | 0 | 0 | 0.8 | 0 | 0 | 0 | 0.3 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 |
| Precipitation (mm) | 5.4 | 0 | 0 | 0.2 | 0 | 0 | 0 | 4.1 | 0.4 | 3.2 | 4.3 | 3.6 | 1.5 | 1.2 | 0.1 | 2.2 | 1.8 | 0 | 2.6 | 0.1 | 3 | 3.5 | 1.4 | 0.4 | 5.4 | 0.3 | 2.7 | 3.2 | 5.2 | 7 | 2.7 |
| Precipitation hours | 22 | 0 | 0 | 2 | 0 | 0 | 0 | 16 | 4 | 13 | 19 | 19 | 9 | 7 | 1 | 6 | 7 | 0 | 9 | 1 | 13 | 9 | 8 | 3 | 17 | 3 | 10 | 9 | 15 | 15 | 6 |
| Wind speed (m/s) | 10.5 | 8.6 | 9.2 | 9.5 | 7.2 | 8.9 | 14.3 | 16.4 | 14.8 | 15.3 | 16.6 | 16.1 | 12.4 | 7.4 | 15.3 | 22.2 | 27.4 | 14.8 | 26.8 | 20.8 | 24.2 | 25.7 | 15.3 | 16.8 | 22.5 | 21.2 | 19.2 | 17.5 | 20.9 | 16.8 | 19.4 |
In December 2023, the highest daytime temperature in Ostrov was 5.3°C.
While the minimum temperature at night dropped to -14.1°C.
The average nighttime and daytime temperatures during December in Ostrov are -5°C and -1.4°C respectively.
The precipitation sum in December is about 66 mm.