January weather forecast in Brentwood

January in Brentwood is the cloudiest and the coldest month of the year. In January, the weather in Brentwood is typically warm. Average daily high temperature in January is about 14 degrees above zero. On average, Brentwood has 9 rainy, 9 partly cloudy, 8 cloudy, and 5 sunny days in January. The rains are usually heavy. January as well as December is considered the most uncomfortable time to visit Brentwood.