Average annual temperature is 2.9 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -33.6 °C
Number of sunny days: 243 days
Number of rainy days: 90 days
Number of snow days: 32 days
Look at detailed online map of Bor-Öndör Sum
* Weather data for Bor-Öndör 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) | -1.1 | 5.4 | 16.7 | 19.2 | 24.5 | 35.7 | 35.5 | 31.1 | 28.9 | 16.7 | 8.9 | 1.5 |
| Average daytime temperature (°C) | -11.6 | -4.0 | 4.5 | 8.5 | 16.6 | 26.2 | 25.0 | 23.5 | 18.7 | 11.1 | -6.9 | -12.0 |
| Average temperature (°C) | -16.2 | -9.7 | -1.3 | 2.1 | 10.8 | 19.8 | 19.8 | 18.0 | 13.0 | 5.5 | -11.1 | -16.1 |
| Average night temperature (°C) | -20.7 | -14.5 | -7.1 | -3.9 | 4.8 | 13.1 | 14.8 | 12.7 | 7.8 | 0.6 | -15.4 | -20.4 |
| Absolute minimum temperature (°C) | -33.6 | -18.5 | -16.9 | -10.1 | -0.5 | 7.5 | 9.9 | 7.2 | 0.8 | -5.9 | -26.5 | -29.5 |
| 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) | 7.7 | 9.0 | 10.7 | 11.4 | 10.1 | 12.2 | 10.0 | 11.3 | 10.2 | 8.9 | 6.7 | 6.3 |
| Precipitation (mm) | 1 | 0 | 0 | 7 | 36 | 6 | 65 | 37 | 41 | 3 | 24 | 7 |
| Sunny days | 29 | 26 | 27 | 22 | 15 | 20 | 11 | 10 | 14 | 26 | 19 | 24 |
| Rainy days | 0 | 0 | 1 | 2 | 14 | 10 | 20 | 21 | 16 | 4 | 2 | 0 |
| Snow days | 2 | 2 | 3 | 6 | 2 | 0 | 0 | 0 | 0 | 1 | 9 | 7 |
The best time to visit Bor-Öndör Sum during the most sunny months:
Months with the longest average daylight duration in Bor-Öndör Sum:
The largest precipitation sum in Bor-Öndör Sum is at