Average temperature in December is -1.8 °C
Average daytime temperature is 1.3 °C
Average night temperature is -4.1 °C
Absolute maximum temperature: 8.2 °C
Absolute minimum temperature: -15.3 °C
Number of sunny days: 17
Number of rainy days: 8
Number of snow days: 6
Precipitation sum: 53 mm
* Weather data for Roy Lake United States 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 | 0.1 | 0.2 | 0.6 | 0.5 | -1.1 | 6.8 | 8.2 | 4.4 | 1.3 | -4.7 | -2.1 | -3.5 | 1.7 | 5.5 | 4.8 | 1.7 | -0.1 | -4 | 1.4 | 1.7 | 2.6 | 3.1 | 4.8 | 5.6 | -0.5 | 2 | 1.1 | 1.3 | 2.1 | -1.4 | -4.5 |
| Apparent max temperature | -4.6 | -5.7 | -3.8 | -2.7 | -4.8 | 2.4 | 4.1 | -1.4 | -2.3 | -8.3 | -7.8 | -9.5 | -3.2 | 0.9 | -0.5 | -1.4 | -3.9 | -11.1 | -2.7 | -3.7 | -2.1 | -0.2 | 1.1 | 2.6 | -5.9 | -2.4 | -2.4 | -2.4 | -2.1 | -5.6 | -9.5 |
| Mean temperature | -3.7 | -3.4 | -2.3 | -2.3 | -4 | 0.4 | 2.9 | 2.5 | -1.6 | -5.9 | -5.3 | -6.7 | -4.2 | 1.5 | 2.2 | 0.3 | -1.8 | -9.6 | -4.1 | -2.2 | -0.6 | 1 | 2.1 | 3.3 | -1.7 | 1.2 | 0.1 | -0.4 | -2.3 | -4.3 | -6 |
| Apparent mean temperature | -11 | -10.5 | -9.3 | -7.9 | -9.6 | -9.4 | -3.7 | -3.5 | -12.5 | -12.8 | -12.8 | -16.7 | -13.1 | -6.3 | -3.9 | -5.2 | -8.9 | -21 | -16 | -9.6 | -8.1 | -4.8 | -2.7 | -6 | -8.5 | -7.1 | -4 | -5.3 | -8.4 | -11.2 | -12.6 |
| Minimum temperature | -6.4 | -5 | -4.4 | -3.8 | -5.5 | -4.9 | -0.3 | 1 | -5.9 | -6.7 | -7.2 | -10.6 | -7.7 | -0.8 | -0.2 | -0.6 | -3.6 | -15.3 | -9.8 | -4.1 | -2.2 | -0.5 | 1.2 | -1 | -3 | -0.5 | -0.6 | -1.6 | -4.5 | -5.5 | -7.6 |
| Apparent min temperature | -8.2 | -8.7 | -7.4 | -6.2 | -7.9 | -4.8 | -1.1 | -2.5 | -6.9 | -10.4 | -10.4 | -12.9 | -9.4 | -4.1 | -1.7 | -3.5 | -6.7 | -15.7 | -9.7 | -7.1 | -6.1 | -2.9 | -1.7 | -1 | -7.4 | -4 | -3.3 | -3.6 | -6.3 | -9.6 | -11 |
| 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) | 8.8 | 8.7 | 8.7 | 8.7 | 8.7 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 |
| Sunshine duration (h) | 7.5 | 3 | 5.3 | 1 | 5 | 6.9 | 7.4 | 0 | 0 | 1.2 | 6.2 | 7.3 | 7.3 | 7.3 | 0 | 0 | 1.4 | 7.2 | 6.7 | 6.7 | 5.4 | 0.1 | 4.6 | 0 | 0 | 0 | 0 | 2.6 | 7.1 | 0 | 3.1 |
| Precipitation (mm) | 0 | 0 | 0 | 0.2 | 0 | 0 | 0 | 0.8 | 5.9 | 0 | 0 | 0.1 | 0 | 0 | 2.6 | 3.3 | 1.4 | 0.9 | 0 | 0 | 0 | 0 | 0 | 16 | 4.6 | 9.9 | 6 | 0 | 0 | 1.2 | 0.1 |
| Precipitation hours | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 8 | 14 | 0 | 0 | 1 | 0 | 0 | 7 | 9 | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 20 | 16 | 24 | 13 | 0 | 0 | 8 | 1 |
| Wind speed (m/s) | 12.5 | 18.2 | 20.5 | 12.2 | 9.7 | 23.5 | 23.6 | 29.4 | 28.3 | 21.1 | 21.3 | 25.7 | 17.2 | 23.9 | 21.9 | 15.5 | 32.2 | 33.7 | 23.7 | 16.9 | 21.9 | 16.2 | 20.4 | 27.7 | 28.1 | 28.1 | 12.5 | 10 | 13.5 | 19.6 | 20.3 |
In December 2023, the highest daytime temperature in Roy Lake was 8.2°C.
While the minimum temperature at night dropped to -15.3°C.
The average nighttime and daytime temperatures during December in Roy Lake are -4.1°C and 1.3°C respectively.
The precipitation sum in December is about 53 mm.