Average temperature in December is -2.9 °C
Average daytime temperature is 3.1 °C
Average night temperature is -7.9 °C
Absolute maximum temperature: 7.5 °C
Absolute minimum temperature: -15.5 °C
Number of sunny days: 22
Number of rainy days: 6
Number of snow days: 3
Precipitation sum: 28 mm
* Weather data for Crystal 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 | -0.2 | -2.3 | 1.5 | 3.4 | 6.2 | 4.4 | 5 | 4.7 | -3.7 | 0.7 | 7.2 | 5 | 4.3 | 0.7 | 2.8 | 7.1 | 5.9 | 6.1 | 4.8 | 4.5 | 7.5 | 6.2 | 2.9 | 0.5 | -2.6 | -2.5 | -0.3 | 1 | 4.4 | 7 | 2.6 |
| Apparent max temperature | -3.5 | -6.4 | -2.6 | 0.4 | 3.2 | 0.8 | 1.3 | 1 | -8.6 | -3.2 | 3.3 | 1.2 | -0.3 | -3.3 | -0.8 | 3.5 | 1.9 | 2.2 | 1.4 | 1.5 | 4.6 | 2.2 | -0.8 | -4.5 | -7.6 | -8.8 | -5.5 | -3.8 | 0.5 | 2.8 | -0.9 |
| Mean temperature | -2.1 | -6.2 | -4.4 | -2.3 | -3.1 | -3.8 | 0.3 | -0.6 | -9.3 | -7.3 | -0.3 | -0.3 | -0.4 | -2.5 | -3.1 | -4.7 | 2.1 | -1.6 | 1 | 0.3 | -0.6 | 0.3 | 0.4 | -3.7 | -8.2 | -8.7 | -6.9 | -4.1 | -4.9 | -3.1 | -2.4 |
| Apparent mean temperature | -7.4 | -19 | -14.3 | -11.9 | -15.7 | -16.3 | -10.1 | -9.5 | -21.6 | -17.7 | -11.5 | -8.9 | -10.1 | -11.5 | -11.6 | -17.4 | -5.7 | -13.2 | -7.9 | -8.4 | -9.5 | -6.9 | -6.3 | -15.1 | -17.1 | -18.3 | -17.3 | -12.9 | -18 | -13.8 | -12 |
| Minimum temperature | -3.1 | -13 | -8.5 | -7.6 | -11.2 | -11.3 | -4.2 | -4.6 | -15.5 | -13.1 | -6.5 | -4.4 | -4.7 | -6.8 | -7 | -12.5 | -0.8 | -8 | -3.3 | -3.8 | -5.6 | -3.4 | -2.8 | -9.9 | -11.8 | -12.8 | -11.6 | -7.8 | -12.8 | -8.5 | -7 |
| Apparent min temperature | -6.8 | -10.9 | -9.3 | -6.1 | -6.9 | -8.2 | -4.4 | -5.8 | -14.5 | -11.5 | -4.6 | -4.6 | -5 | -6.6 | -6.9 | -8.7 | -2.1 | -6 | -2.9 | -3.3 | -4 | -3.2 | -2.9 | -8.4 | -13 | -14.2 | -11.9 | -8.8 | -9.2 | -7.5 | -6.7 |
| 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) | 9.9 | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 |
| Sunshine duration (h) | 3.4 | 8.9 | 8.8 | 8.9 | 8.9 | 8.9 | 8.9 | 8.4 | 8.8 | 8.8 | 8.6 | 6.5 | 6.3 | 8 | 8.5 | 8.7 | 8.6 | 8.6 | 0.5 | 1.4 | 8 | 5.6 | 5.4 | 8 | 8.7 | 8.7 | 8.7 | 8.4 | 8.7 | 8.6 | 8.7 |
| Precipitation (mm) | 11.9 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 0 | 0.2 | 1.5 | 0 | 1.1 | 7.2 | 1.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation hours | 22 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 0 | 0 | 0 | 0 | 2 | 8 | 0 | 3 | 17 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 19.4 | 16.6 | 16.4 | 8.9 | 9.7 | 12 | 18 | 29 | 16.1 | 11.2 | 9.4 | 12 | 16.6 | 17.6 | 10.8 | 11.9 | 10.1 | 13.2 | 11.6 | 11.5 | 9.4 | 14.1 | 20.3 | 20.6 | 13.1 | 20.9 | 14.3 | 13.5 | 10.5 | 11.6 | 13 |
In December 2023, the highest daytime temperature in Crystal was 7.5°C.
While the minimum temperature at night dropped to -15.5°C.
The average nighttime and daytime temperatures during December in Crystal are -7.9°C and 3.1°C respectively.
The precipitation sum in December is about 28 mm.