December in Chelmza is the windiest month of the year. In December, the weather in Chelmza is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Chelmza has 16 cloudy, 12 rainy, 2 sunny, and 1 snowy day in December. The rains are usually light. December as well as January, February, March, and November is considered the most uncomfortable time to visit Chelmza.