December in Desert Hot Springs is the coldest month of the year. In December, the weather in Desert Hot Springs is typically warm. Average daily high temperature in December is about 12 degrees above zero. On average, Desert Hot Springs has 16 sunny, 6 partly cloudy, 5 rainy, and 4 cloudy days in December. The rains are usually moderate. December as well as January and February is considered the most uncomfortable time to visit Desert Hot Springs.