Kaliope, that's so interesting that one school is more dramatic than all the rest.

OP, this doesn't sound like a very good friend. She sounds more like a frenemy. Do you think that she is aware that she is being obnoxious? Or is she oblivious to it? I think that I engaged in similar behaviors as your friend when I was younger. I didn't mean anything by it, I was just a bit rude. As I got older, I saw how off-putting I could be and tried to tone it down.

If you tell your friend, right in the moment, that you find her comment rude, her behavior might improve. If she accuses you of need validation because you use your phone: Sorry, Sue. That might be true for you, but it's not my experience. You might not be aware, but that comment sounds really accusatory.

Sometimes just a shocked expression and a 'Wow' when someone does something rude is good, too.

With the snow: "Sorry, I don't understand. Are you saying that you are surprised to hear that there is more snow here than there? Or are you accusing me of lying?"