Never been to Waverly Hills myself - Glasgow's a fair bit from Kentucky as you can imagine - but I've been following reports from that location for a couple of years now and the spring visits do seem to generate more activity reports than other times of year. Whether thats environmental conditions affecting equipment or something else entirely I genuinely don't know.
What I find interesting is how many people independently report the same thing in the same areas without having read eachother's accounts beforehand. The fifth floor in particular comes up constantly. That kind of consistency is what makes me take a location seriously rather than just dismissing it as atmosphere and expectation.
What did you actually experience? And were you running any equipment at the time, even just a basic EMF meter or voice recorder? Would be good to get some specifics rather than just the general feeling stuff, not dismissing that at all, just helps to have something to cross-reference against other accounts from the same visit period.