February in Mamaroneck is the snowiest and the windiest month of the year. In February, the weather in Mamaroneck is typically cold. Average daily high temperature in February is about 3 degrees above zero. On average, Mamaroneck has 8 rainy, 7 sunny, 7 partly cloudy, 5 cloudy, and 2 snowy days in February. The rains are usually heavy. February as well as January, March, and December is considered the most uncomfortable time to visit Mamaroneck.