Bayanbulag (, rich spring) is a sum (district) of Bayankhongor Province in southern Mongolia. In 2006, its population was 2,143. Climate Bayanbulag has a cold semi-arid climate (Köppen climate classification BSk) with mild summers and severely cold winters. The climate is very dry; most precipitation falls in the summer as rain, with some snow in the adjacent months of May and September. Winters are very dry. References Populated places in Mongolia Districts of Bayankhongor Province