In February, the weather in Hauppauge is typically cold. Average daily high temperature in February is about 4 degrees above zero. On average, Hauppauge has 11 sunny, 7 partly cloudy, 6 rainy, 4 cloudy, and 1 snowy day in February. The rains are usually heavy. February as well as January, March, April, and November is considered the most uncomfortable time to visit Hauppauge.