Average annual temperature is 1.6 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -38.0 °C
Number of sunny days: 242 days
Number of rainy days: 88 days
Number of snow days: 35 days
Look at detailed online map of Bayanhongor Sum
* Weather data for Bayanhongor Sum Mongolia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 0.1 | 4.0 | 12.1 | 18.8 | 19.9 | 30.6 | 33.6 | 29.6 | 28.1 | 15.6 | 8.9 | 3.2 |
| Average daytime temperature (°C) | -9.9 | -3.6 | 4.0 | 6.6 | 13.0 | 23.4 | 25.2 | 23.1 | 16.2 | 10.7 | -2.7 | -9.3 |
| Average temperature (°C) | -17.1 | -11.1 | -3.0 | 0.9 | 7.1 | 17.1 | 18.9 | 16.7 | 9.8 | 3.7 | -8.8 | -15.9 |
| Average night temperature (°C) | -23.6 | -18.6 | -11.5 | -6.1 | 0.7 | 9.6 | 11.8 | 9.3 | 2.3 | -3.0 | -15.5 | -22.7 |
| Absolute minimum temperature (°C) | -32.7 | -23.3 | -17.4 | -13.9 | -4.8 | 1.2 | 4.1 | 3.8 | -4.7 | -5.3 | -23.8 | -38.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 7.4 | 8.9 | 10.4 | 11.2 | 10.0 | 11.6 | 11.1 | 11.0 | 10.1 | 9.5 | 7.8 | 6.8 |
| Precipitation (mm) | 5 | 2 | 1 | 11 | 50 | 20 | 58 | 48 | 29 | 5 | 5 | 7 |
| Sunny days | 27 | 23 | 28 | 21 | 10 | 11 | 17 | 17 | 15 | 27 | 22 | 24 |
| Rainy days | 0 | 1 | 0 | 2 | 20 | 19 | 14 | 14 | 14 | 3 | 1 | 0 |
| Snow days | 4 | 4 | 3 | 7 | 1 | 0 | 0 | 0 | 1 | 1 | 7 | 7 |
Months with the longest average daylight duration in Bayanhongor Sum:
The largest precipitation sum in Bayanhongor Sum is at