January in Doncaster is the coldest month of the year. In January, the weather in Doncaster is typically cold. Average daily high temperature in January is about 5 degrees above zero. On average, Doncaster has 18 rainy, 8 cloudy, 4 sunny, and 1 partly cloudy day in January. The rains are usually moderate. January as well as February, March, April, and June is considered the most uncomfortable time to visit Doncaster.