January in Saint Joseph is the snowiest and the coldest month of the year. In January, the weather in Saint Joseph is typically freezing. Average daily high temperature in January is about zero. On average, Saint Joseph has 14 partly cloudy, 10 sunny, 5 cloudy, and 2 snowy days in January. The snowfalls are usually light. January as well as February, March, and December is considered the most uncomfortable time to visit Saint Joseph.