January in Corum is the cloudiest and the coldest month of the year. In January, the weather in Corum is typically cold. Average daily high temperature in January is about 2 degrees above zero. On average, Corum has 10 rainy, 8 cloudy, 7 partly cloudy, and 6 sunny days in January. The rains are usually moderate. January as well as February, March, and December is considered the most uncomfortable time to visit Corum.