Hi Mary welcome to Permies! My husband and I are not far from you. We don't use much ac unless it gets above 95F. We are in the woods with a lot of shade and we have security screen doors and use fans to direct air around the house. Screens are very necessary due to mosquitoes and flies. These past 2 years of la nina weather pattern for our area have been wet and much cooler than normal. On the years we have heatwaves ac is really nice to have. Shading, overhangs, lots of greenery, and air flow really help with cooling. Due to the high humidity swamp coolers and similar things are not very effective. I would like an attic fan which would vent heat and pull in more cool air than the fans, and if I were to ever build a house it would be in the design. The house came with the husband and it was almost a deal-breaker, lol. If you cruise through the historical district downtown you can get an idea of some of the old ways of cooling, transom windows, turret towers for air draw, built on piers for air flow and to prevent heavy rains from intruding, large porches with overhangs, lots of greenery and shady spots.