Average temperature in January is -15.3 °C
Average daytime temperature is -8.4 °C
Average night temperature is -20.7 °C
Absolute maximum temperature: 2.8 °C
Absolute minimum temperature: -30.7 °C
Number of sunny days: 25
Number of rainy days:
Number of snow days: 6
Precipitation sum: 3 mm
* Weather data for Arvayheer Mongolia is based on climate observations for 2023 year
| January (°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 | -9.4 | -9.5 | -8.1 | -6.3 | -4.2 | -3.4 | 2.8 | -3.1 | -1.9 | 2.8 | 2.7 | -9.4 | -18.2 | -13.5 | -9.3 | -11.8 | -8.7 | -10.1 | -15.1 | -9.8 | -12.4 | -22.8 | -22.4 | -15.5 | -13.1 | -15 | -4.6 | 0.4 | -2.5 | -1.5 | -7.9 |
| Apparent max temperature | -14.4 | -14.1 | -12.2 | -11.6 | -9.9 | -8.5 | -2.3 | -6.9 | -6.6 | -1.2 | -3.4 | -16.1 | -24.2 | -19 | -14.5 | -19.1 | -13 | -18 | -20.1 | -16.2 | -18.8 | -29.7 | -27.9 | -20.4 | -19.6 | -22 | -10.8 | -5.8 | -7.8 | -6.4 | -13.6 |
| Mean temperature | -16.3 | -14.8 | -14.5 | -13.8 | -12.8 | -8.5 | -6.4 | -9.5 | -9.5 | -6.6 | -6.5 | -17.9 | -22.9 | -20.5 | -16.5 | -17.3 | -16.3 | -16.7 | -20.4 | -17.3 | -19.1 | -26.8 | -27 | -19.6 | -18.4 | -20 | -13 | -10.3 | -10.8 | -10.4 | -14.4 |
| Apparent mean temperature | -24.6 | -24.9 | -23.7 | -24.3 | -22.9 | -21.2 | -17.2 | -19.1 | -20.1 | -16.4 | -18 | -28.3 | -31.9 | -32.6 | -28.4 | -28 | -29.8 | -29 | -29.5 | -27.8 | -32 | -35.7 | -36.5 | -33.1 | -28.3 | -28.9 | -24.3 | -22.1 | -22.4 | -22 | -24.8 |
| Minimum temperature | -19.7 | -19.7 | -18.9 | -19.5 | -18.2 | -15.9 | -12.7 | -14.8 | -15.9 | -12 | -13.7 | -22.9 | -27.1 | -27.8 | -23.1 | -23 | -24.6 | -21.9 | -22.9 | -22.1 | -25.1 | -29.6 | -30.7 | -27.9 | -21.8 | -22.9 | -18.4 | -16.2 | -16.7 | -16.5 | -20.2 |
| Apparent min temperature | -21 | -19.7 | -19.1 | -18.6 | -18.3 | -13.3 | -11.6 | -14 | -14 | -11.2 | -11.8 | -24.8 | -28.1 | -25.8 | -21.8 | -23.2 | -21.5 | -23.6 | -26.2 | -23.1 | -24.9 | -33.2 | -32.2 | -24.5 | -24 | -26.3 | -18.6 | -15.9 | -16.2 | -15.9 | -19.8 |
| January | 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) | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.8 | 8.8 | 8.8 | 8.8 | 8.9 | 8.9 | 8.9 | 9 | 9 | 9 | 9 | 9.1 | 9.1 | 9.1 | 9.2 | 9.2 | 9.3 | 9.3 | 9.3 | 9.4 | 9.4 | 9.5 | 9.5 | 9.5 | 9.6 | 9.6 |
| Sunshine duration (h) | 7.5 | 7.5 | 7.5 | 7.5 | 7 | 7.5 | 6.6 | 7.6 | 7.6 | 5.4 | 7.7 | 2.2 | 7.7 | 7.8 | 7.8 | 7.7 | 7.9 | 6.4 | 8 | 8 | 8.1 | 5.9 | 8.2 | 8.2 | 5.1 | 8.3 | 8.3 | 8.4 | 8.4 | 8.5 | 8.5 |
| Precipitation (mm) | 0 | 0 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0.7 | 0 | 0 | 0.4 | 0.3 | 0 | 0 | 0.6 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation hours | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 4 | 3 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 10.1 | 12.3 | 12.5 | 11.8 | 25.1 | 20.3 | 22.1 | 10.1 | 9.6 | 14.3 | 24.6 | 35.5 | 15.8 | 13 | 13 | 23.5 | 13.8 | 28.7 | 20.7 | 22.5 | 19 | 20.7 | 13.6 | 11.9 | 18.4 | 24.7 | 16.8 | 21.1 | 16.6 | 15.8 | 18.3 |
In January 2023, the highest daytime temperature in Arvayheer was 2.8°C.
While the minimum temperature at night dropped to -30.7°C.
The average nighttime and daytime temperatures during January in Arvayheer are -20.7°C and -8.4°C respectively.
The precipitation sum in January is about 3 mm.