A young man showed up at church who had been living in Africa. He heard all the news about the drought, then was shocked to see all the lawn watering going on. According to him, a real drought is when you turn the faucet on and nothing comes out. A water crisis is when a baboon dies and falls into the village water supply. Only a few central valley areas are facing dry faucets at the moment, so in some sense the drought really hasn't begun for the vast majority of Californians. Another way we might feel the drought is through water charges. Some areas of the state until recently were only charged for a water hookup, but not the water used. A glance at historical water rates shows that this is significantly lagging inflation.
But to be real, urban Californians only use 20% of the water compared to 80% for the agricultural sector. Or so it is misleadingly reported. Actually, the environmental mandates come to almost 50%, with agriculture more like 40% and urban at 10%. The environmental use is hard to find, but one link is here. And here. The documentation stops at 2010, which seems to be just before a bunch of court decisions to increase the environmental share of the water usage. It is tempting to think that California's policy of being a magnet for illegals, welfare recipients and homeless contributes to this, but I suspect that this is negligible.
The latest article on the subject is from the Washington Post. As usual, there is no mention of water usage and environmentalism or marijuana growing. What is mentioned is groundwater aquifers and global warming. So we will muddle through as always.