In December, the weather in Bol'shoy Uluy is typically freezing. Average daily high temperature in December is about 13 degrees below zero. On average, Bol'shoy Uluy has 19 snowy, 11 cloudy, and 1 sunny day in December. The snowfalls are usually light. December as well as January, February, April, and May is considered the most uncomfortable time to visit Bol'shoy Uluy.