Average temperature in December is -6.5 °C
Average daytime temperature is -3.9 °C
Average night temperature is -9.3 °C
Absolute maximum temperature: 8.3 °C
Absolute minimum temperature: -17.1 °C
Number of sunny days: 14
Number of rainy days: 7
Number of snow days: 10
Precipitation sum: 90 mm
* Weather data for Grong 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 | -11.1 | -12 | -14.1 | -8.6 | -5 | -5.5 | -8 | -5.1 | -0.3 | -0.4 | -3.6 | -4.9 | -10.3 | -9.3 | 2.5 | 8.3 | 3.7 | 5.1 | 3.1 | -2.8 | -3.6 | -3.1 | -5.5 | -6.6 | -5 | 1.5 | 0.1 | -4.5 | -3.1 | -4.9 | -7.3 |
| Apparent max temperature | -15.3 | -16.4 | -19.1 | -12.5 | -8.6 | -9.2 | -12.7 | -9.7 | -5.4 | -5.2 | -7.7 | -9.2 | -15 | -14.3 | -0.8 | 2.9 | -0.4 | 1.1 | -1.2 | -6.2 | -8.4 | -7.1 | -9.9 | -12.2 | -9.4 | -3.6 | -4.7 | -10.4 | -8.6 | -10 | -13.1 |
| Mean temperature | -11.9 | -15.8 | -15 | -12 | -7.3 | -7.6 | -9.4 | -10.7 | -2.1 | -3.2 | -5.8 | -8.3 | -11.8 | -12.2 | -3.2 | 3.9 | 2.9 | 4 | 1.1 | -5.6 | -5.7 | -4.2 | -10.3 | -10.8 | -5.8 | -5.7 | -3.2 | -6.8 | -3.9 | -6.6 | -8 |
| Apparent mean temperature | -18 | -22 | -20.7 | -21.1 | -15.4 | -13.6 | -18.1 | -20.4 | -9.4 | -10.6 | -12.1 | -15.8 | -17.7 | -18.4 | -14.1 | -3.6 | -3.4 | -1.2 | -6.5 | -12.9 | -13.8 | -10 | -18 | -17.7 | -11.1 | -17.8 | -14.6 | -14.7 | -10.7 | -13.5 | -14.9 |
| Minimum temperature | -13.3 | -17.1 | -16.1 | -16.6 | -11 | -9.7 | -13 | -15.1 | -5 | -6.3 | -7.6 | -11 | -12.8 | -13.2 | -8.9 | 1 | 2.3 | 2.4 | -2.9 | -8.5 | -8.5 | -5.7 | -13.6 | -13.2 | -6.8 | -13.5 | -10 | -10.6 | -5.3 | -8.2 | -9.1 |
| Apparent min temperature | -16.4 | -20.7 | -20.1 | -16.3 | -11.2 | -11.7 | -14.2 | -15.6 | -6.8 | -7.7 | -10.3 | -12.8 | -16.6 | -17.5 | -7.2 | -0.7 | -1.4 | 0 | -4.1 | -9.5 | -10.4 | -8.3 | -14.8 | -15.9 | -10.1 | -10 | -7.8 | -11.7 | -9.5 | -11.9 | -13.9 |
| 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) | 4.9 | 4.8 | 4.7 | 4.6 | 4.6 | 4.5 | 4.4 | 4.4 | 4.3 | 4.3 | 4.2 | 4.2 | 4.1 | 4.1 | 4 | 4 | 4 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 4 | 4 | 4 | 4.1 | 4.1 | 4.1 |
| Sunshine duration (h) | 0 | 0.2 | 1.9 | 0 | 0 | 0 | 0 | 2.9 | 0 | 0 | 0.5 | 3.2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.7 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3.7 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 1.5 | 0.1 | 0 | 0 | 0 | 0.4 | 0 | 0 | 0 | 0.4 | 8.1 | 33.4 | 7.5 | 19.1 | 10.3 | 0 | 1.2 | 1.8 | 0 | 0 | 2.2 | 1.4 | 2.3 | 0.1 | 0.1 | 0.3 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 6 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 2 | 14 | 24 | 16 | 21 | 19 | 0 | 10 | 15 | 0 | 0 | 13 | 7 | 15 | 1 | 1 | 3 | 0 |
| Wind speed (m/s) | 7.9 | 9.7 | 10.9 | 6.1 | 7.4 | 9.7 | 11.2 | 12 | 17.5 | 17 | 11.3 | 9.8 | 10.1 | 13 | 12.3 | 30.6 | 27.8 | 25.3 | 34.3 | 9.1 | 13.7 | 9.8 | 10.8 | 16.8 | 16.6 | 22.1 | 19.2 | 19.1 | 19.8 | 15.3 | 22 |
In December 2023, the highest daytime temperature in Grong was 8.3°C.
While the minimum temperature at night dropped to -17.1°C.
The average nighttime and daytime temperatures during December in Grong are -9.3°C and -3.9°C respectively.
The precipitation sum in December is about 90 mm.