Only those aren't well versed in the regional history portend a single rainy season will end this drought. Bring some pleasant relief, which will only help to slacken regulation/thinking/policy.
However after a year the drought will still be - unmoderated and with even worse water policies.
But, if you can afford the water, Cali is still the same - although it's harder to see through the haze of selfie sticks and REI gear.