Garth, I agree you with that the weather is becoming increasingly and concerningly atypical, while acknowledging that sometimes we will see unseasonably warm, Indian summer type weather here. Nonetheless, when I moved to NY 18 years ago, one could generally characterize what the weather was like in each season. Not so anymore. Back then by this time of October, it would be crisp (upper 40s-50s in the day), as I recall.
Generally speaking, I find that people under 40 don't have a strong sense of the dramatic change in weather patterns that has taken place since the 70s. To be fair, how could they, not having experienced what it was like before?
For those of us who remember what fall, winter, spring and summer used to be like (wherever we've lived), it's deeply disconcerting. In addition to the physical changes such as higher water levels, more violent and frequent storms, etc., it is my view that climate change is going to have a negative, destabilizing impact on some people, and thus society.