December in East Amherst is the rainiest month of the year. In December, the weather in East Amherst is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, East Amherst has 18 rainy, 7 cloudy, 5 snowy, and 1 sunny day in December. The rains are usually moderate. December as well as March, April, October, and November is considered the most uncomfortable time to visit East Amherst.