February in Rio Grande is the windiest and the cloudiest month of the year. In February, the weather in Rio Grande is typically cold. Average daily high temperature in February is about 5 degrees above zero. On average, Rio Grande has 11 partly cloudy, 8 sunny, 6 rainy, and 4 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 Rio Grande.