Average temperature in December is -3.2 °C
Average daytime temperature is -1.4 °C
Average night temperature is -5.4 °C
Absolute maximum temperature: 3.1 °C
Absolute minimum temperature: -11.7 °C
Number of sunny days: 3
Number of rainy days: 16
Number of snow days: 12
Precipitation sum: 100 mm
* Weather data for Roslavl’ 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 | -3.9 | -4.1 | -5.3 | -4 | -3.5 | -6 | -7.3 | -7.4 | -6.9 | -5 | -2.3 | -0.2 | -0.7 | -3.8 | -2.9 | -2.8 | 2.5 | 2 | 2.8 | 2.1 | 0.8 | 0.5 | 0.1 | -0.8 | 2.1 | 1.5 | 1.2 | -0.8 | 3 | 3.1 | 1.7 |
| Apparent max temperature | -7.7 | -9.1 | -10.5 | -9.3 | -7.8 | -9.5 | -13.1 | -13.3 | -12 | -10.3 | -7.8 | -5.4 | -5.5 | -9.5 | -9.2 | -8.2 | -2.9 | -2.4 | -2.9 | -2.5 | -4.2 | -3.7 | -3.8 | -5.8 | -3.6 | -4.3 | -3.5 | -5.8 | -2.5 | -1 | -3.5 |
| Mean temperature | -4.8 | -5.2 | -6.5 | -8.4 | -4.9 | -8.5 | -9.8 | -8.9 | -8.3 | -7.1 | -4.5 | -1.3 | -2.5 | -7.1 | -6.6 | -4.3 | 0.7 | 1.5 | 1.9 | 1.2 | 0.1 | 0.1 | -1.2 | -1.8 | -1.4 | -0.4 | -0.5 | -3.4 | 1.7 | 2.3 | -2 |
| Apparent mean temperature | -11.5 | -10.7 | -16 | -17.2 | -11.1 | -16.1 | -17.6 | -17.3 | -14.7 | -14.9 | -12.2 | -8.5 | -9.7 | -15 | -17 | -10.4 | -7.7 | -3.9 | -4.5 | -3.9 | -6 | -7.4 | -7.4 | -7.9 | -10.3 | -8.9 | -8 | -10.8 | -5 | -4 | -16 |
| Minimum temperature | -6.5 | -6.5 | -9.9 | -11.7 | -7 | -11.1 | -11.4 | -10.9 | -9.4 | -9.4 | -6 | -2.9 | -3.9 | -8.6 | -10.9 | -6.3 | -2.7 | 0.6 | 0.8 | 0.3 | -1.1 | -0.9 | -2.1 | -3.3 | -4.1 | -2.6 | -2 | -6.6 | -0.2 | 1 | -11.4 |
| Apparent min temperature | -9.5 | -9.6 | -12.3 | -14 | -9.3 | -12.9 | -15.7 | -15.3 | -13.7 | -12.3 | -10.4 | -6.6 | -7.9 | -13.1 | -12.6 | -9.1 | -4.7 | -2.9 | -3.7 | -3 | -5 | -5.5 | -5.9 | -6.9 | -7.2 | -5.8 | -5.7 | -8.5 | -3.5 | -2.4 | -7.4 |
| 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) | 7.8 | 7.8 | 7.7 | 7.7 | 7.7 | 7.6 | 7.6 | 7.6 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.5 | 7.5 |
| Sunshine duration (h) | 0 | 0.1 | 0 | 0 | 0 | 0.8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.9 | 0 | 5 | 0 | 0 | 0 |
| Precipitation (mm) | 1.5 | 0.3 | 11 | 1.2 | 0.5 | 0 | 0 | 7.9 | 1.9 | 0 | 2.6 | 1.7 | 4.6 | 11.2 | 0.7 | 0.3 | 5.4 | 1.1 | 1.6 | 10.2 | 3.8 | 5.7 | 1.1 | 2.4 | 3 | 2.7 | 9.2 | 0.4 | 1.5 | 5.7 | 1.1 |
| Precipitation hours | 8 | 2 | 18 | 7 | 5 | 0 | 0 | 21 | 7 | 0 | 18 | 10 | 20 | 20 | 4 | 3 | 8 | 3 | 7 | 23 | 7 | 21 | 6 | 10 | 10 | 9 | 14 | 4 | 4 | 11 | 8 |
| Wind speed (m/s) | 17.7 | 15.6 | 23.6 | 21.5 | 13.4 | 11.3 | 26.7 | 24.3 | 18.1 | 17.3 | 24.5 | 22.1 | 22.8 | 23.1 | 27.2 | 25.4 | 30.1 | 19.6 | 31.7 | 21.4 | 25.9 | 30.6 | 20.6 | 21.8 | 31.9 | 30.5 | 26.1 | 28.2 | 27.6 | 26.8 | 25.3 |
In December 2023, the highest daytime temperature in Roslavl’ was 3.1°C.
While the minimum temperature at night dropped to -11.7°C.
The average nighttime and daytime temperatures during December in Roslavl’ are -5.4°C and -1.4°C respectively.
The precipitation sum in December is about 100 mm.