December in Trzcianka is the windiest and the cloudiest month of the year. In December, the weather in Trzcianka is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Trzcianka has 16 rainy, 13 cloudy, 1 sunny, and 1 partly cloudy day in December. The rains are usually moderate. December as well as January, February, March, and November is considered the most uncomfortable time to visit Trzcianka.