December in Lake George is the snowiest and the cloudiest month of the year. In December, the weather in Lake George is typically freezing. Average daily high temperature in December is about zero. On average, Lake George has 11 snowy, 10 cloudy, 4 sunny, 3 rainy, and 3 partly cloudy days in December. The snowfalls are usually moderate. December as well as March, April, and November is considered the most uncomfortable time to visit Lake George.