February in Sherman–Denison is the snowiest and the cloudiest month of the year. In February, the weather in Sherman–Denison is typically warm. Average daily high temperature in February is about 14 degrees above zero. On average, Sherman–Denison has 10 sunny, 7 partly cloudy, 6 rainy, 5 cloudy, and 1 snowy day in February. The rains are usually heavy. February as well as January, March, May, and June is considered the most uncomfortable time to visit Sherman–Denison.