Average temperature in December is -7.3 °C
Average daytime temperature is -4.3 °C
Average night temperature is -10.5 °C
Absolute maximum temperature: 8.9 °C
Absolute minimum temperature: -18.4 °C
Number of sunny days: 11
Number of rainy days: 7
Number of snow days: 13
Precipitation sum: 67 mm
* Weather data for Rollag Norway 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 | -7.1 | -7.2 | -9.8 | -11 | -12 | -9.3 | -6.8 | -4.6 | -1.4 | -1.3 | -1.9 | -2.5 | -4.5 | -9.9 | -6.8 | 8.9 | 2.2 | -0.5 | 4.2 | -0.9 | -3.7 | -1.6 | -9.1 | -6.8 | -4.7 | -4.4 | -3.1 | -4.8 | -3.9 | -4.2 | -3.4 |
| Apparent max temperature | -11.7 | -10.8 | -13.8 | -15.1 | -16.2 | -13.1 | -10.5 | -8.3 | -4.7 | -4.7 | -5.7 | -5.6 | -7.6 | -13.4 | -10.5 | 3.9 | -1.4 | -3.4 | -0.9 | -4.5 | -8 | -6.5 | -13.4 | -10.1 | -8.5 | -9.3 | -7.9 | -7.9 | -6.9 | -7.3 | -7.3 |
| Mean temperature | -10.9 | -10.4 | -13.2 | -15 | -14.9 | -11.7 | -7.8 | -5.7 | -2.9 | -1.9 | -2.5 | -4.1 | -7.8 | -11.6 | -9.6 | -0.2 | -1.9 | -1.7 | -2.5 | -6 | -6.2 | -4.8 | -11.7 | -10.7 | -7.5 | -11.1 | -9 | -7 | -5.7 | -5.5 | -4.6 |
| Apparent mean temperature | -18.8 | -18.5 | -22.4 | -23.5 | -23 | -19.3 | -13 | -10.6 | -8.2 | -6.4 | -6.6 | -10.6 | -16.6 | -17.4 | -15.4 | -9.9 | -8.3 | -5.9 | -11.8 | -14.4 | -14.7 | -14.9 | -20.4 | -21.7 | -14.8 | -18.6 | -17.9 | -14.1 | -13.9 | -13.1 | -10.8 |
| Minimum temperature | -14 | -13.9 | -17.4 | -18.4 | -18 | -14.7 | -9.2 | -7 | -4.5 | -2.5 | -3.1 | -7.2 | -12.1 | -12.9 | -11.6 | -6.5 | -4.8 | -2.6 | -7.8 | -10.4 | -10.7 | -9.9 | -15.9 | -17 | -10.4 | -13.7 | -13.6 | -10.1 | -9.8 | -9.1 | -6 |
| Apparent min temperature | -15.4 | -14.5 | -17.6 | -19.6 | -19.5 | -15.8 | -11.5 | -9.4 | -6.2 | -5.3 | -6.2 | -7.3 | -11.4 | -15.6 | -13.3 | -3.9 | -5 | -4.7 | -6.4 | -9.7 | -10.3 | -9.4 | -16.1 | -14.6 | -11.3 | -15.5 | -13.4 | -10.7 | -9.2 | -9.1 | -8.5 |
| 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) | 6.5 | 6.4 | 6.4 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6 | 6 | 6 | 6 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 6 | 6 | 6 |
| Sunshine duration (h) | 4.3 | 0 | 3.8 | 3.4 | 3.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0.9 | 0.1 | 2.4 | 3.1 | 3 | 0 | 2 | 3.3 | 0 | 1 | 1 | 3.3 | 0 | 0 | 0.9 | 0 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0.4 | 0 | 2.4 | 12.8 | 6.6 | 3.7 | 0.6 | 0.1 | 0.2 | 0 | 2.2 | 0.5 | 0 | 0 | 1.1 | 9.7 | 0.3 | 0 | 2.3 | 1.4 | 0 | 0.3 | 6.7 | 7 | 0 | 8.3 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 10 | 24 | 24 | 24 | 6 | 1 | 2 | 0 | 6 | 5 | 0 | 0 | 5 | 17 | 3 | 0 | 11 | 9 | 0 | 2 | 11 | 13 | 0 | 19 |
| Wind speed (m/s) | 9.8 | 6.6 | 8 | 8.8 | 8 | 5.8 | 4.4 | 5.7 | 6.6 | 8.4 | 10.3 | 4.3 | 6.9 | 6.6 | 5.1 | 23.5 | 6.9 | 6.2 | 18.1 | 7.9 | 11.3 | 15.9 | 9.7 | 7.4 | 9.4 | 12.7 | 13 | 7.7 | 4.9 | 7 | 12.6 |
In December 2023, the highest daytime temperature in Rollag was 8.9°C.
While the minimum temperature at night dropped to -18.4°C.
The average nighttime and daytime temperatures during December in Rollag are -10.5°C and -4.3°C respectively.
The precipitation sum in December is about 67 mm.