January in Montrose is the snowiest and the most freezing month of the year. In January, the weather in Montrose is typically freezing. Average daily high temperature in January is about zero. On average, Montrose has 13 sunny, 12 partly cloudy, 3 snowy, 2 rainy, and 1 cloudy day in January. The snowfalls are usually light. January as well as February, March, November, and December is considered the most uncomfortable time to visit Montrose.