I highly doubt it. They're so common and dependent on so many variables, I don't see much of a point. Airlines start and stop service due to demand, meaning an airport with increased service will inherently have more diversions, not necessarily weather related. Then you get different aircraft being added to a fleet while others being taken out (having different capabilities). Throw in a pandemic, el Niño, maybe a pilot shortage and some political unrest, and I just don't see how anything meaningful could be gleaned off such data. As for deviating around weather, it's as common as changing lanes on the freeway. It's just not tracked on a macro scale.

Edit; I sometimes get used to using aviation terms that may not be common for others. Deviating means flying around something (ie weather). Diverting means going to a different destination/airport entirely