In December, the weather in Ust-Lekchim is typically freezing. Average daily high temperature in December is about 9 degrees below zero. On average, Ust-Lekchim has 17 snowy, 13 cloudy, and 1 sunny day in December. The snowfalls are usually light. December as well as January, February, April, and September is considered the most uncomfortable time to visit Ust-Lekchim.