I’m in Central Ohio in zone 6. Zone 6b according to the maps.
Although no matter how much of a close up of my area I find it is nearly impossible to tell if I’m in zone 5 or zone 6, I always figure it is 6 based on the temperature info. If you drive north from our house you seem to drive over a magical line that I call the snow line. The folks up there always get a lot more snow than we do and their kids miss a lot of school for snow days.
I think those magical snow lines exist everywhere. I’m in zone 7, just like when I lived in Delaware, but we wind up with fog delays and closings here as opposed to the snow closings they get there, or even 20 miles north of me in Maryland.
If you cross the county line—less than 3-ish miles from where i work, a little farther from where i live—we have that same magical line. if it snows, it usually stops right there. Same thing with rain, course that can go either way.
in the summer we have prevailing winds off the ocean. it can make for some hellacious aft thunderboomers! The runways at cherry point mcas draw storms like a magbet.