December in Un"ugan is the snowiest month of the year. In December, the weather in Un"ugan is typically freezing. Average daily high temperature in December is about 13 degrees below zero. On average, Un"ugan has 11 cloudy, 9 snowy, 8 partly cloudy, and 3 sunny days in December. The snowfalls are usually light. December as well as January, February, September, and October is considered the most uncomfortable time to visit Un"ugan.