Ive caught bed fish in CA in July, but only in Humboldt Co which is of course in the fog belt. The weather is such on the northcoast that water temps never really get beyond what is considered optimal spawning temps. Thus, the spawn technically could last for a very long time (and in certain years it did, and I documented this occurring during multiple years in the past 15 years through scale analysis), and it appeared the spawn was dictated primarilly through other variables (such as rainfall).

It doesnt surprise me youve done it in the Bay area since thats in the fog belt as well, typically is very cool, and its likely water temps remain near optimal temps much longer than systems lying outside of the "coastal effect".