February in New Brunswick is the windiest and the cloudiest month of the year. In February, the weather in New Brunswick is typically cold. Average daily high temperature in February is about 4 degrees above zero. On average, New Brunswick has 10 partly cloudy, 7 rainy, 7 sunny, and 5 cloudy days in February. The rains are usually heavy. February as well as January, March, and December is considered the most uncomfortable time to visit New Brunswick.