Never really thought about the weather connection until about two years ago when I was doing an EVP session in an old Victorian terraced house in Solihull. Storm rolled in halfway through and honestly the temperature fluctuations on my meter went absolutely mental, more than I'd ever seen in a dry session.
Whether thats coincidence or something else I genuinely don't know. I'm quite skeptical about these things even after getting into ghost hunting, I always want a rational explanation first. But there might be something to the electromagnetic activity from lightning affecting whatever is going on in these locations.
Has anyone actually tracked this properly, like kept records comparing weather conditions to activity levels? Because anecdotal stuff is one thing but I'd find it more convincing if someone had done this across multiple visits to the same location. Would be worth doing properly if nobody has.