Average temperature in December is -6.1 °C
Average daytime temperature is -3.5 °C
Average night temperature is -9.1 °C
Absolute maximum temperature: 6 °C
Absolute minimum temperature: -17.4 °C
Number of sunny days: 16
Number of rainy days: 4
Number of snow days: 11
Precipitation sum: 32 mm
* Weather data for Bollnäs Sweden is based on climate observations for 2023 year
| Dicembre (°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 | -4.9 | -8.7 | -9 | -9 | -12.2 | -11.6 | -4 | -0.8 | -0.6 | -1.9 | -0.7 | -2.6 | -3.8 | -8.8 | -9 | 6 | 3.4 | 2.3 | 3.9 | -3.5 | -1.4 | -0.5 | -3.6 | -8.5 | -5.3 | -4.9 | -0.1 | -0.8 | 0 | -0.1 | -4.3 |
| Apparent max temperature | -9.9 | -13.3 | -13.5 | -13.7 | -16.5 | -16.2 | -7.7 | -4 | -4.3 | -5.5 | -4.3 | -7.1 | -8.2 | -13.4 | -12.7 | 1.1 | -1.7 | -1.3 | -1.3 | -8.7 | -5.6 | -4.6 | -8.9 | -13.8 | -9.1 | -9.7 | -5.8 | -3.6 | -3.5 | -3.8 | -8.4 |
| Mean temperature | -7.1 | -10.2 | -10.2 | -11.2 | -14.1 | -14.1 | -9.3 | -1.6 | -1.1 | -2.6 | -1.5 | -3.4 | -6.9 | -11 | -11.4 | -0.6 | 0.7 | 0.1 | 1.2 | -10.3 | -7.9 | -1.3 | -5.2 | -11.4 | -8.1 | -9.3 | -3.2 | -6.2 | -2.8 | -2.7 | -5.5 |
| Apparent mean temperature | -15.8 | -16 | -16.7 | -20.4 | -21.5 | -22.3 | -21 | -6 | -6.4 | -7.1 | -7.5 | -8.1 | -13.5 | -18 | -18.3 | -15.3 | -5.1 | -5.3 | -8.1 | -20.9 | -21.2 | -9.1 | -13.3 | -17.9 | -16.9 | -16.5 | -13.2 | -15.6 | -8.6 | -8.4 | -10.6 |
| Minimum temperature | -10.8 | -11 | -11.8 | -15 | -16.1 | -17.4 | -16.5 | -2.6 | -2.5 | -3.2 | -3 | -3.7 | -8.7 | -13.7 | -13.9 | -10.2 | -1.1 | -1.6 | -2.8 | -15.9 | -16.1 | -3.5 | -8.1 | -13.6 | -12.9 | -11.2 | -8 | -11 | -4.9 | -4.3 | -6 |
| Apparent min temperature | -12.1 | -15 | -15 | -16.2 | -19 | -18.8 | -13.1 | -5.1 | -5 | -6.2 | -5.5 | -7.8 | -11.5 | -15.6 | -15.7 | -5.1 | -3.5 | -3.6 | -4.5 | -15.2 | -12 | -6.2 | -10.6 | -16.2 | -12 | -14.3 | -8.6 | -10.5 | -6.3 | -6.7 | -9.9 |
| Dicembre | 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) | 6.1 | 6 | 6 | 5.9 | 5.9 | 5.8 | 5.8 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.5 | 5.5 | 5.5 | 5.5 | 5.6 |
| Sunshine duration (h) | 0 | 0 | 0 | 2.9 | 0.8 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.4 | 0 | 0 | 0 | 0 | 2.3 | 2.3 | 2.3 | 0 | 0 | 0 | 2.2 | 0 | 2.3 | 2.3 | 0 | 0 | 0 | 0 |
| Precipitation (mm) | 0 | 0.6 | 0.8 | 0 | 0 | 0 | 4.3 | 2 | 0.9 | 0.2 | 1.3 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 6.6 | 3.1 | 0 | 2.4 | 0 | 0 | 5 | 1.6 | 2.6 | 0 |
| Precipitation hours | 0 | 6 | 7 | 0 | 0 | 0 | 17 | 14 | 9 | 2 | 12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 20 | 13 | 0 | 13 | 0 | 0 | 12 | 8 | 10 | 0 |
| Wind speed (m/s) | 15.1 | 10.7 | 11.1 | 11.9 | 12.2 | 8.9 | 6.7 | 11.1 | 11.7 | 9.8 | 12.3 | 12.7 | 12.3 | 10.9 | 11.8 | 24 | 18.3 | 12.5 | 26 | 15.9 | 12.4 | 19.8 | 17.5 | 14.2 | 10 | 13 | 20.2 | 13.6 | 12.6 | 12.8 | 12 |
In December 2023, the highest daytime temperature in Bollnäs was 6°C.
While the minimum temperature at night dropped to -17.4°C.
The average nighttime and daytime temperatures during December in Bollnäs are -9.1°C and -3.5°C respectively.
The precipitation sum in December is about 32 mm.