The snowpack in the Sierra Nevada mountains is even deeper than the accumulation in 2017 that pulled the state out of its five-year drought.
The Sierra snowpack measured more than 200% of average on May 30 after a barrage of wet storms throughout the winter and spring, according to the Department of Water Resources.
Last year, the levels recorded stood at 6% of average.
The mountain snow supplies nearly 30% of the state's water needs.
The late-season storms are good for skiers too. Squaw Valley ski resort saw 37 inches of snow in May, enabling managers to plan to keep the slopes open at least until the July 4 holiday.