New York Times: CALIFORNIA has only two seasons, rainy and dry. In March, when the rains stop assuming they have begun we must forget about precipitation for at least six months. The rainfall determines our mood for the summer and fall. Where I live, on the Central Coast, 17 inches of rain per winter has been the long-term average. Beating that number we last did it five years ago feels like winning the lottery. Lately, the average has been well under 10. The difference between a good rain year in California...