As I said, I can't distinguish within 3 zones where I am on that map.
I'd need a pixel-level editor, and I don't expect the data that
produced the map is that exact to that resolution, anyway.

I meant click on your state, or any state, for that matter. All the zones
are listed at the bottom with relative temps.

I assume you meant Def F. We get to single digits for at
least a few days in january. Does that mean I'm in zone 6b ?

Upper single digits or lower single digits? 6b or 7a. At least it will give
you a good idea of what you can plant.