In December, the weather in Woodstock is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Woodstock has 11 cloudy, 7 partly cloudy, 5 snowy, 4 rainy, and 4 sunny days in December. The snowfalls are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Woodstock.