The Sierra Nevada foothills is blessed with a relatively mild climate. Summers are warm and dry, with temperatures ranging from the 80s to over 100 degrees F. In the winter, snow seldom falls at elevations less than 3,000 feet. Most of the region is above the persistent fog that blankets the Central Valley to the west. Frosty winter mornings, however, occur even at low elevations. The winter rainy season generally extends from October until April, with the heaviest precipitation occurring in December, January and February.