In September, the weather in Claremont is typically warm. Average daily high temperature in September is about 19 degrees above zero. On average, Claremont has 15 sunny, 10 partly cloudy, and 5 rainy days in September. The rains are usually moderate. September as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Claremont.