January in Tahtamukaj is the snowiest, the cloudiest, and the coldest month of the year. In January, the weather in Tahtamukaj is typically cold. Average daily high temperature in January is about 3 degrees above zero. On average, Tahtamukaj has 14 cloudy, 9 rainy, 4 sunny, 2 snowy, and 2 partly cloudy days in January. The rains are usually moderate. January as well as February, March, and December is considered the most uncomfortable time to visit Tahtamukaj.