December in Kingston is the cloudiest month of the year. In December, the weather in Kingston is typically freezing. Average daily high temperature in December is about zero. On average, Kingston has 10 partly cloudy, 9 cloudy, 5 snowy, 5 sunny, and 2 rainy days in December. The snowfalls are usually heavy. December as well as February, March, April, and October is considered the most uncomfortable time to visit Kingston.