Our first three trips were late June. We had another in July. Hot and humid, count on a storm(usually on AK day for some reason) but doable. Once we went in August and it was a big difference! The pool was like a bathtub; not even refreshing.
Now our last 4 trips were spring break trips. My son and I had way different breaks this year--he's in HS and can't miss school, I'm a teacher and can't take more than 1or 2 days. so we are going back June 17. I hope it's not worse than I remember! But I haven't been in over two years so I don't even care. We will swim, I'll buy a spray bottle if needed, and take water bottles. Anyhow, after the worst winter in NW Ohio history, I'd rather be hot than cold!