Daniel Swain for New York Times — December Was One of the Warmest on Record in California

UCLA climate scientist Daniel Swain discusses California’s warmest December since 1958 in a recent New York Times article. Temperatures were, on average, 4.2 degrees higher than normal. “In some places in the Sierra foothills, it appears this was the warmest December on record. In other parts of California, it was certainly in the top three,” Swain said.