September in La Fria is the hottest month of the year. In September, the weather in La Fria is typically hot. Average daily high temperature in September is about 30 degrees above zero. On average, La Fria has 19 rainy, 10 cloudy, and 1 sunny day in September. The rains are usually heavy. September as well as March, April, May, and June is considered the most uncomfortable time to visit La Fria.