January weather forecast in Hamilton

January in Hamilton is the rainiest and the cloudiest month of the year. In January, the weather in Hamilton is typically warm. Average daily high temperature in January is about 19 degrees above zero. On average, Hamilton has 18 rainy, 7 cloudy, 5 sunny, and 1 partly cloudy day in January. The rains are usually heavy. January as well as February, March, August, and September is considered the most uncomfortable time to visit Hamilton.