December in Redlands is the rainiest and the coldest month of the year. In December, the weather in Redlands is typically warm. Average daily high temperature in December is about 14 degrees above zero. On average, Redlands has 20 sunny, 8 partly cloudy, and 3 rainy days in December. The rains are usually light. December as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most uncomfortable time to visit Redlands.