I don't think El Nino can be blamed for the cool SoCal conditions you describe. Actually, the cool ocean conditions off the West Coast may be, in part, a remnant of the La Nina that ended just a few months ago (things have been changing fast in the Pacific!). El Nino tends to bring warmer ocean temperatures off the West Coast, so I would expect things to warm up eventually. El Nino actually tends to bring less May and June gloom to coastal California, so maybe next spring will be a little less gloomy!