Average temperature in December is -14.3 °C
Average daytime temperature is -8.9 °C
Average night temperature is -19.1 °C
Absolute maximum temperature: 5.1 °C
Absolute minimum temperature: -27.2 °C
Number of sunny days: 24
Number of rainy days: 2
Number of snow days: 5
Precipitation sum: 7 mm
* Weather data for Arvayheer Mongolia 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 | 1.7 | -0.2 | 3.7 | -7 | 2.2 | 5.1 | -9.4 | -13 | -15.4 | -14.6 | -15.8 | -17.3 | -22.8 | -20.9 | -16.9 | -16 | -22.3 | -19.2 | -17.9 | -16.3 | -12.1 | -5.1 | -2.7 | -3.2 | -7.8 | 1.4 | -2 | -5.5 | -4.7 | -1.4 |
| Apparent max temperature | -6.5 | -2.8 | -4.1 | -2 | -13.9 | -2.7 | -2.7 | -14.5 | -18.8 | -20.5 | -20.3 | -21.5 | -22.1 | -29.9 | -27.4 | -22.4 | -20.9 | -28.3 | -23.7 | -22.3 | -21.7 | -18.5 | -9.6 | -6.8 | -9.6 | -12.4 | -2.4 | -6.4 | -11.9 | -9.1 | -5.7 |
| Mean temperature | -7.9 | -6.4 | -8.4 | -3.9 | -11.7 | -3.2 | -3.3 | -14.7 | -17.2 | -18.3 | -18.7 | -18.3 | -21.4 | -24.5 | -24.4 | -21.4 | -19.9 | -24 | -24 | -22.8 | -21.7 | -15.4 | -11.7 | -10 | -10.2 | -12.1 | -7.6 | -8.4 | -9 | -10.9 | -10.6 |
| Apparent mean temperature | -17.2 | -18.1 | -18.5 | -16.7 | -19.6 | -17.5 | -19.7 | -24.8 | -25 | -26.2 | -26.5 | -25.6 | -31.4 | -32.2 | -31.5 | -31 | -31.5 | -32.9 | -31.5 | -32.2 | -32.2 | -25.6 | -22.6 | -20 | -20.1 | -20.2 | -18.4 | -18.3 | -19.6 | -20.7 | -22.2 |
| Minimum temperature | -12.5 | -13.5 | -14.1 | -12.7 | -14.9 | -12.5 | -13.1 | -20.2 | -20.6 | -21.7 | -22.3 | -20.8 | -24.5 | -26.3 | -26.5 | -26.2 | -23.6 | -26.2 | -26.4 | -25.7 | -27.2 | -19.9 | -17.3 | -15.2 | -15.4 | -16 | -14.3 | -14.3 | -15 | -16 | -17.1 |
| Apparent min temperature | -13.4 | -11.6 | -12.8 | -9.8 | -17.3 | -8.4 | -10.3 | -19.6 | -22 | -23.1 | -23.4 | -23 | -28.2 | -30.8 | -29.7 | -26.2 | -25.1 | -30.2 | -29 | -27.9 | -26.8 | -21.5 | -16.7 | -14.9 | -15.3 | -16.9 | -12 | -12.9 | -16.2 | -15.4 | -15.4 |
| 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) | 8.9 | 8.9 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.7 | 8.7 |
| Sunshine duration (h) | 7.7 | 7.6 | 7.7 | 7.6 | 7.6 | 7.6 | 7.6 | 7.5 | 7.5 | 3.2 | 7.4 | 6.6 | 0.6 | 2.3 | 7.4 | 7.4 | 6.5 | 6.5 | 7.4 | 7.4 | 7.3 | 7.4 | 7.4 | 7.4 | 6.6 | 7.4 | 7.4 | 7.4 | 0.6 | 7.4 | 7.5 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 0 | 0.6 | 2.4 | 0.1 | 0 | 0 | 0.8 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.3 | 0 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 5 | 16 | 1 | 0 | 0 | 8 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 0 |
| Wind speed (m/s) | 25.1 | 15.3 | 10.2 | 37.1 | 26.3 | 21.3 | 39.6 | 18.2 | 12.5 | 11.6 | 14.4 | 13.5 | 23.4 | 23.4 | 19.2 | 9.8 | 25.9 | 29.9 | 10.6 | 16.4 | 15.4 | 19.7 | 11.5 | 13.6 | 19.1 | 11.6 | 13.2 | 13 | 42 | 8.9 | 11.7 |
In December 2023, the highest daytime temperature in Arvayheer was 5.1°C.
While the minimum temperature at night dropped to -27.2°C.
The average nighttime and daytime temperatures during December in Arvayheer are -19.1°C and -8.9°C respectively.
The precipitation sum in December is about 7 mm.