Average temperature in December is -13.6 °C
Average daytime temperature is -8.7 °C
Average night temperature is -17.8 °C
Absolute maximum temperature: 8.3 °C
Absolute minimum temperature: -26.5 °C
Number of sunny days: 24
Number of rainy days:
Number of snow days: 7
Precipitation sum: 8 mm
* Weather data for Bayan 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 | -0.4 | 1.4 | 1.9 | 4.3 | -5.3 | 3.2 | 8.3 | -9.1 | -13.5 | -17 | -17.7 | -18.1 | -19.2 | -21.5 | -20 | -15.2 | -14.7 | -18.8 | -19.1 | -18 | -18 | -13.9 | -6 | -1.8 | -6.3 | -4.2 | -0.2 | -1.3 | -4.3 | -3.6 | -2.9 |
| Apparent max temperature | -6 | -2.8 | -4.1 | -1.1 | -13.5 | -2.1 | 2.4 | -14.2 | -18.3 | -21.9 | -22.3 | -23.1 | -24.6 | -26.3 | -26.5 | -20.3 | -19.4 | -23.4 | -24.4 | -23.3 | -22.9 | -19.9 | -11.9 | -5.9 | -10.8 | -8.6 | -5 | -5.4 | -10.1 | -7.9 | -8.8 |
| Mean temperature | -6.7 | -4.9 | -4.6 | -0.8 | -8.8 | -2.5 | -2.2 | -14.1 | -18.5 | -20.4 | -21.3 | -21.4 | -21.4 | -22.3 | -22.5 | -20.2 | -19.4 | -21.2 | -23 | -23.3 | -21.9 | -16.7 | -10.7 | -10.2 | -11 | -10.5 | -7.8 | -7.6 | -7.6 | -10 | -9.5 |
| Apparent mean temperature | -16.2 | -14.5 | -13.8 | -13.9 | -17.2 | -15.6 | -17.6 | -23.5 | -25.3 | -26.6 | -27.8 | -28.2 | -28.7 | -28.7 | -28.9 | -29.5 | -27.4 | -31.1 | -31.6 | -31.2 | -31.5 | -26 | -21.6 | -19.8 | -20.2 | -20.7 | -17.7 | -17.8 | -18.1 | -19.3 | -20.7 |
| Minimum temperature | -11.2 | -9.3 | -9.1 | -7.2 | -11.4 | -10.4 | -11.4 | -19 | -20.7 | -22.5 | -23.5 | -24 | -23.1 | -23.4 | -23.9 | -24.2 | -21.8 | -25.7 | -26.1 | -25.7 | -26.5 | -20.9 | -16 | -14.6 | -15.2 | -15.4 | -12.8 | -12.9 | -13.3 | -14 | -15.2 |
| Apparent min temperature | -12.1 | -9.8 | -10 | -7.4 | -15.3 | -7.6 | -8.7 | -18.9 | -23.1 | -25.2 | -25.7 | -26.1 | -26.7 | -27.3 | -27.9 | -25.5 | -24.7 | -26.4 | -28.3 | -28.8 | -26.9 | -22.3 | -16.1 | -15.1 | -15.6 | -15.4 | -12.6 | -11.8 | -13 | -14.9 | -14.8 |
| 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 | 8.4 | 8.4 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 |
| Sunshine duration (h) | 7.6 | 7.5 | 7.5 | 7.5 | 7.4 | 7.4 | 7.2 | 7.4 | 7.3 | 7.1 | 7.3 | 6.2 | 0 | 3 | 7.2 | 7.2 | 4.5 | 5 | 7.2 | 7.2 | 7.2 | 6.8 | 7.2 | 7.2 | 6.6 | 7.2 | 7.2 | 6.8 | 0 | 7.3 | 7.3 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0 | 0.5 | 2.3 | 0 | 0 | 0 | 1.3 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 2.9 | 0 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 5 | 22 | 0 | 0 | 0 | 13 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 18 | 0 | 0 |
| Wind speed (m/s) | 14.4 | 13.3 | 20.5 | 33 | 34.5 | 15.5 | 36.7 | 13.9 | 9.3 | 12.4 | 4.7 | 11.4 | 11.8 | 10.1 | 16.9 | 10.9 | 14.8 | 15.9 | 10.7 | 11.6 | 7.8 | 15 | 16.3 | 14.5 | 10.3 | 11.9 | 13.6 | 12.5 | 23.2 | 13.5 | 19.5 |
In December 2023, the highest daytime temperature in Bayan was 8.3°C.
While the minimum temperature at night dropped to -26.5°C.
The average nighttime and daytime temperatures during December in Bayan are -17.8°C and -8.7°C respectively.
The precipitation sum in December is about 8 mm.