When Gov. Gavin Newsom asked Californians to voluntarily conserve water last week as he stood in front of the retreating shoreline at Lopez Lake in San Luis Obispo County, some must have had déjà vu.

It was only six years ago when former Gov. Jerry Brown stood in a field near Lake Tahoe that was bereft of normally plentiful snow and called for water restrictions amid the state’s punishing years-long drought.