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