Souther California here (LA). My temps are always 81-83, 90-93 but humidity is always in the low 30s. One thing I did was add another water bowl to the side with the UTHs. That raised it a bit. I also wadded together some paper towels, and regularly mist them until soaking wet. Those make the humidity stay up for upto 5-6 hours instead of 3-4 during regular misting.