Lake Oroville Is at 97 Percent Capacity Heading Into May, Well Above Average

After years of watching reservoir levels swing between worry and relief, Lake Oroville is starting May in remarkably good shape.

The California Department of Water Resources confirmed that as of May 1, the reservoir sits at 893 feet elevation with storage at approximately 3.32 million acre-feet, which works out to 97 percent of total capacity and 121 percent of the historical average for this time of year.

That is a number worth pausing on. Oroville at 97 percent heading into the dry season is the kind of cushion that water managers and recreationists both want to see. For the boaters, anglers, and campers who rely on the lake staying full enough to make access worthwhile, those numbers translate directly into a better summer on the water.

The improvement reflects a combination of factors, including a wetter-than-average late winter, ongoing storm events that kept inflows positive through April, and the overall trajectory of the watershed after several difficult drought years earlier in the decade.

Lake Oroville is California’s second-largest reservoir and one of the most closely watched water storage facilities in the state. It serves as a critical anchor for the State Water Project, which delivers water to communities and agricultural users across California. When Oroville is full, the downstream implications are significant.

The boat ramps are accessible, the fishing should be strong with the recent Chinook salmon stocking, and conditions heading into Memorial Day weekend look about as good as anyone could hope for.