Given that we currently have 8 hours between sunrise and sunset here in Northern Europe, with sub-zero (°C) temperatures promised for the weekend, it is hard to feel too much sympathy with San Diego - but your hops would be jealous of me.
They're temperate plants, and they need to go dormant in winter, the two things they need are a dose of near-or-sub-freezing temperatures and short day lengths. The daylength requirement means that there's a pretty rigid latitude barrier to growing them commercially, at about 35N/S - obviously you're closer to the equator than that, so they think it's always summer. But since you're not growing them by the field-load, you can look after them more carefully than a commercial farmer.
SAB got round that problem in South Africa by developing daylength-neutral varieties which can be grown anywhere, but I don't think they're available outside SA as rhizomes, and they were intended for macro lager so will be less characterful than your Cascades.
Maybe someone can come up with something based on local experience, but all I can suggest is that either you get some South African rhizomes (but see above) or you trick the Cascades into thinking it's winter. Which sounds like growing them in pots and bringing them inside into the dark, ideally into a fridge (dark and cold, you wouldn't necessarily need them all in there at the same time). Not having this problem I'm not sure how far you'd have to go with eg providing 8h light per day, but just dark and cold would be a start.
Meanwhile I'm off to hibernate for the next few months...