January in Saint Robert is the coldest month of the year. In January, the weather in Saint Robert is typically cold. Average daily high temperature in January is about 6 degrees above zero. On average, Saint Robert has 10 sunny, 9 partly cloudy, 6 cloudy, 5 rainy, and 1 snowy day in January. The rains are usually moderate. January as well as February, March, July, and December is considered the most uncomfortable time to visit Saint Robert.