In February, the weather in Armonk is typically cold. Average daily high temperature in February is about 4 degrees above zero. On average, Armonk has 11 sunny, 7 partly cloudy, 5 cloudy, 4 rainy, and 2 snowy days in February. The rains are usually moderate. February as well as January, March, April, and November is considered the most uncomfortable time to visit Armonk.