March in Armonk is the windiest month of the year. In March, the weather in Armonk is typically cold. Average daily high temperature in March is about 8 degrees above zero. On average, Armonk has 10 sunny, 9 partly cloudy, 8 rainy, 3 cloudy, and 1 snowy day in March. The rains are usually heavy. March as well as January, February, April, and November is considered the most uncomfortable time to visit Armonk.