La Niña Pattern to Start California’s Water Year. What That Means for Rain, Temperatures

A La Niña pattern for the first few months of this water year (Oct. 1 to Sept. 30) means there is potential for extreme weather events, both flooding and drought, depending on where you are located in California.

Despite Sacramento receiving 76% of its normal rainfall for this past water year, Lake Oroville, the State Water Project’s largest reservoir, is currently sitting at 109% of average.