December weather forecast in Ottawa

In December, the weather in Ottawa is typically freezing. Average daily high temperature in December is about 1 degree above zero. On average, Ottawa has 10 cloudy, 6 snowy, 5 rainy, 5 sunny, and 5 partly cloudy days in December. The snowfalls are usually light. December as well as February, March, April, and November is considered the most uncomfortable time to visit Ottawa.