Strangely enough there are 2 rainfall "years" that are measured. Here is a look at what was going on from 2013-2014. So far this year we are at 50% of average. The only good news is that NorCal is doing slightly better, reservoirs are a little higher, and we have done a better job of capture. Still, the rainfall we have had is so minimal, it isn't worth much toward the situation. "A new study says that cancer-causing pollutants have dropped more than 50% Southern California’s air quality is getting better, according to a study released Thursday. Cancer-causing pollutants have dropped over 50% on average since 2005, the last time the South Coast Air Quality Management District checked air quality extensively. Efforts to reduce emissions from diesel trucks and other vehicles can account for a great deal of the drop. California residents may have noticed the positive effects of such endeavors in the sky: smog rarely browns out the mountains in the region now." CA still occupies plenty of the top spots in the smoggiest city contest but most of those are central valley locations where crop burning is exacerbated by the heat and big rigs are the major mode of vehicle on the interstate. The Santa Ana's can help to discharge but not often enough. Dallas and Houston are up there too along with DC. Still, with 18 million people, smog is gonna happen.