Average temperature in December is -4 °C
Average daytime temperature is -1.8 °C
Average night temperature is -5.9 °C
Absolute maximum temperature: 3.1 °C
Absolute minimum temperature: -13.2 °C
Number of sunny days: 3
Number of rainy days: 14
Number of snow days: 14
Precipitation sum: 81 mm
* Weather data for Smolensk 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 | -4.2 | -4.8 | -5.4 | -4.3 | -5.3 | -7 | -8 | -8.6 | -8.5 | -6.1 | -2.5 | -0.6 | -0.6 | -2.7 | -3.6 | -2.8 | 3.1 | 2.4 | 3 | 2.3 | 0.9 | 0.5 | 0 | -0.9 | 2.1 | 1.4 | -0.3 | -1.1 | 2.8 | 2.9 | 1.2 |
| Apparent max temperature | -8.3 | -9 | -10.4 | -9.3 | -10 | -10.8 | -13 | -14.1 | -13.6 | -11.2 | -7.6 | -5.3 | -5.5 | -7.7 | -8.7 | -8 | -2.3 | -2 | -2.1 | -1.8 | -3.7 | -3.8 | -3.9 | -5.5 | -3.6 | -3.6 | -3.1 | -6 | -2.1 | -1.5 | -4.1 |
| Mean temperature | -5.4 | -5.8 | -6.5 | -9 | -8 | -8.4 | -10 | -10.8 | -9.5 | -8.4 | -5 | -1.4 | -1.9 | -6.7 | -6.7 | -5 | 0.8 | 1.7 | 2.2 | 1.4 | 0 | 0 | -1.5 | -2.1 | -2 | -1.3 | -1.4 | -3.6 | 1.7 | 1.7 | -4 |
| Apparent mean temperature | -11.7 | -11.2 | -16.2 | -17 | -17.9 | -14.3 | -19.6 | -19.6 | -16.1 | -15.9 | -11.8 | -8.6 | -8.7 | -15.4 | -16 | -13.6 | -6.5 | -3 | -3.6 | -3.6 | -6.6 | -6.8 | -7.7 | -8.2 | -10.4 | -9.3 | -7.6 | -10.3 | -5.3 | -3.8 | -17.3 |
| Minimum temperature | -7.1 | -7.1 | -10.1 | -11.7 | -12.5 | -10.2 | -12.9 | -13.2 | -10.6 | -10.4 | -6 | -3 | -3.2 | -9.5 | -10.8 | -8.8 | -1.5 | 0.9 | 1 | 0.2 | -1 | -0.4 | -2.3 | -4 | -4.6 | -3.2 | -2.3 | -5.3 | -0.5 | 0.3 | -12.3 |
| Apparent min temperature | -9.9 | -10 | -12 | -14.1 | -12.2 | -12.7 | -15.8 | -17.1 | -14.9 | -13.6 | -10.5 | -6.6 | -6.9 | -12.2 | -12.1 | -9.6 | -4.3 | -2.5 | -3 | -2.5 | -5 | -5.3 | -6.2 | -6.7 | -7.4 | -6.2 | -6.1 | -8.6 | -3.3 | -2.8 | -9.4 |
| 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) | 7.6 | 7.6 | 7.6 | 7.5 | 7.5 | 7.5 | 7.4 | 7.4 | 7.4 | 7.4 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.3 | 7.3 | 7.3 | 7.3 |
| Sunshine duration (h) | 0 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.9 | 0 | 3.4 | 0 | 1.7 | 0 | 0 | 0 |
| Precipitation (mm) | 1.2 | 0.5 | 8.9 | 0.7 | 0.3 | 0.7 | 0 | 8.6 | 1.2 | 0 | 2.4 | 2.1 | 3.2 | 7.5 | 1 | 0 | 5 | 0.6 | 3.4 | 5 | 2.8 | 4.9 | 1 | 1.6 | 4 | 2.2 | 1.9 | 0.4 | 3.8 | 5 | 1.2 |
| Precipitation hours | 11 | 5 | 18 | 6 | 3 | 5 | 0 | 20 | 7 | 0 | 16 | 12 | 17 | 18 | 6 | 0 | 11 | 2 | 12 | 13 | 9 | 19 | 7 | 9 | 13 | 10 | 12 | 4 | 8 | 6 | 8 |
| Wind speed (m/s) | 13.7 | 13.3 | 20.9 | 17.8 | 13.7 | 12.3 | 22.5 | 22.1 | 15.8 | 15.9 | 20.4 | 20.9 | 19.7 | 22.2 | 23.4 | 18.1 | 25.6 | 19 | 28.8 | 22.4 | 23.7 | 28.4 | 19.7 | 19.5 | 25.4 | 28.8 | 25.1 | 25.3 | 25.9 | 26.3 | 23.8 |
In December 2023, the highest daytime temperature in Smolensk was 3.1°C.
While the minimum temperature at night dropped to -13.2°C.
The average nighttime and daytime temperatures during December in Smolensk are -5.9°C and -1.8°C respectively.
The precipitation sum in December is about 81 mm.