This is true but by no means will it solve the problem. California is in such bad shape that, according to CNN, requires 11 trillion gallons of water to be relieved of this drought. That is the equivalent of 14,000 Dallas Cowboy stadiums full of water.
How is California's water used? Well according to The Daily Show with Jon Stewart about 4% has gone towards direct use such as watering lawns, showering, drinking and so forth, whereas 46% went towards agriculture and 47% towards meat and dairy products. The remainder has gone toward industry products. If anything California should not be planting so many crops in a desert and possess such a large meat and dairy industry if they wish to be a drought free.
What can you do to help California even if you don't live there? Eat local and eat less meat. California produces over half of America's produce according to CNN. Therefore chances are no matter where you live in the country, you probably ate something grown or raised in California today. If you would like to help California, decrease the demand for meat and eat locally.