Here in "upstate" NY, I'm rural hills. SQM usually 21.2, occasionally 21.5. Seeing is often good, transparency usually mid/marginal but occasionally wonderful. That's about it. Think Adarondas. Actually, surprisingly good for the NorthEast. Tom
I need to move to your part of NYS! At least for the seeing.
The 'seeing' I see is generally awful - mostly thanks to the jet stream, but maybe local conditions. You don't see many excellent planetary images coming out of New York.
Transparency = variable, with it best in the fall and often low in summer.
I observe in a number of places, but -
--- rural home, Southern Tier, near Binghamton, SQM = 20.5
--- at Kopernik Observatory (NY/PA border area, south of Vestal, NY), SQM = 21.0
--- my camp on Indian Lake and the Adirondack Public Observatory (central Adirondacks), SQM = 21.75 or better. At Indian Lake I enjoy a wonderfully low Southern Horizon right over the 16 mile long wilderness lake - if there are 'light domes' they are hidden behind mountains.
I also observe often from Cherry Springs "Dark Sky" Park in PA (not quite 3 hour drive for me). On rare occasions the seeing is excellent, at times the transparency is excellent, late night fog is a problem - SQM = 21.75 or better.