January in Cambridge is the coldest month of the year. In January, the weather in Cambridge is typically cold. Average daily high temperature in January is about 6 degrees above zero. On average, Cambridge has 11 rainy, 11 cloudy, 5 partly cloudy, and 4 sunny days in January. The rains are usually moderate. January as well as February, April, June, and July is considered the most uncomfortable time to visit Cambridge.