In December, the weather in Shu is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Shu has 12 partly cloudy, 9 sunny, 4 snowy, 4 cloudy, and 2 rainy days in December. The snowfalls are usually light. December as well as January, February, March, and November is considered the most uncomfortable time to visit Shu.