January in Paderborn is the snowiest and the coldest month of the year. In January, the weather in Paderborn is typically cold. Average daily high temperature in January is about 3 degrees above zero. On average, Paderborn has 11 rainy, 8 cloudy, 6 partly cloudy, 5 sunny, and 1 snowy day in January. The rains are usually heavy. January as well as February, March, April, and October is considered the most uncomfortable time to visit Paderborn.