I have lived in NJ all my life. I think we got much more snow back in the 60's & 70's. I remember doing a lot of sledding when I was kid.
It's cyclical. In '66, we had snowfalls that forced the governor to declare an emergency and close the roads. I remember the snowfall at Christmas, because we were stuck at home for a couple of days and couldn't go visit my grandmother till 2 or 3 days. And I remember that our township plowed our driveway clear with a front-end loader.
In the 70s, I remember a couple of colder winters, and more consistent snowfall, but we seem to have gone into a cycle of milder winters. Though, the winter of 1983 had some good snow storms, too. In fact, there was a snow storm on Valentine's Day that year, when I was a freshman in college, that shut the area down. I went to Ursinus, which is only about 25 miles northwest of Philly, and the roads were shut down then, too. We had a Valentine's Day dance planned, off-campus, down around Audubon, and it was cancelled. And the campus was shut down.
There were other snow storms, too, but also some colder and drier winters, with less snow.
I recall that '96 was relatively snowy, and there was a storm over Martin Luther King Day weekend, that had the roads shut down, too. And I remember a St Patrick's Day about 8 years ago, it fell on a Friday, on which we got 6 to 8 inches of snow. It killed plans for going out, but by Sunday afternoon, most of it was melted, as spring came early.
Go back and read diaries and letters of people who lived hear a hundred years ago, two hundred years ago, and you'll read descriptions of weather that will sound pretty familiar.
Prost!
Brad