January weather forecast in Armonk

January in Armonk is the snowiest and the coldest month of the year. In January, the weather in Armonk is typically cold. Average daily high temperature in January is about 1 degree above zero. On average, Armonk has 13 partly cloudy, 8 sunny, 4 rainy, 3 snowy, and 3 cloudy days in January. The rains are usually heavy. January as well as February, March, and December is considered the most uncomfortable time to visit Armonk.