This is a common argument encouraged by the fossil fuel industry but it's not that simple. Climate science operates on a longer time scale so there isn't a single “We did it – Exxon, et al.” note to find but what you can talk about are the probabilities shifting (100 year floods become 20 year floods, etc.) and that tends to happen after most major events. For example, two noteworthy weather events this summer:

https://arstechnica.com/science/2021/07/pacific-northwest-he... https://arstechnica.com/science/2021/08/europes-july-floods-...

In this case, what I'd look at is whether this event is in line with what the climate scientists have been saying for decades, namely that we'd see more volatility and extreme weather events. This is especially compatible with predictions for the mid-Atlantic region which have called for more big snow events despite generally less snow on average. No, it's not definitive enough that you could use it in a criminal case but it tells anyone that cares to expect higher insurance rates, taxes, etc.