January in Maidstone is the coldest month of the year. In January, the weather in Maidstone is typically cold. Average daily high temperature in January is about 6 degrees above zero. On average, Maidstone has 20 rainy, 6 cloudy, and 5 sunny days in January. The rains are usually moderate. January as well as February, March, November, and December is considered the most uncomfortable time to visit Maidstone.