January in Gerardmer is the snowiest and the coldest month of the year. In January, the weather in Gerardmer is typically cold. Average daily high temperature in January is about 1 degree above zero. On average, Gerardmer has 13 rainy, 8 snowy, 7 cloudy, and 3 sunny days in January. The rains are usually heavy. January as well as February, March, April, and May is considered the most uncomfortable time to visit Gerardmer.