Steve, I was thinking about this very thing earlier this week. It's interesting how 50-75 miles in distance makes such a difference in one's perception. Growing up in the '70s it seemed like every snow down here was in the 2-4, 3-5, 4-6 range. We went years without a foot-plus snowstorm. Historically we (Lancaster county) receive such a snowstorm about once per decade. In the past 14 winters we've had at least 8 storms over a foot. So at least for winter weather, we have been much, much more active in recent years. Again...this is specific to my location and not to yours.
I would agree with other elements of weather. My 16 year old daughter remarked this afternoon that we don't get thunderstorms like she remembers from her younger years. And it's been 6 years since we've been impacted by a significant tropical event. So I'd say that spring, summer, and fall has been quieter weather wise.
In a broader sense beyond PA, I feel like weather has become much more extreme. Every winter there seems to be a new "storm of the decade" somewhere on the east coast. We've had 2 extreme hurricanes strike our country for the first time in years. Some of my perception is no doubt media-driven hype, but it does seem like (to me) that storms seem to be getting bigger and badder...even if not necessarily around here.
I have to think sooner than later you're going to have either a harsh winter or some other weather extreme. You're more than overdue...right?