January in Frechen is the coldest month of the year. In January, the weather in Frechen is typically cold. Average daily high temperature in January is about 5 degrees above zero. On average, Frechen has 12 rainy, 9 cloudy, 6 partly cloudy, and 4 sunny days in January. The rains are usually moderate. January as well as February, March, November, and December is considered the most uncomfortable time to visit Frechen.