My wife and I live at the edge of a small forest in upstate New York (it's that region on your map labelled "Here There Be Dragons", just north of Manhattan). Our backyard is essentially "kitty TV", with chipmunks, grey and red squirrels, a mole, birds of all kinds, and toads that like to hide in the dirt until you're almost on top of them.
Anyway, after a rather spectacular thunderstorm this evening, we were treated to a few visitors of the amphibian kind. I heard the cats making a commotion, looked up, and noticed a silhouette on the window. I walked closer, thinking it was the biggest moth I'd ever seen. Once I got close enough, though, I realized it was a frog, climbing his way into the liiiiight.

Robyn decided that his name should be Kermit; it was later changed to Glen when his buddies, Randy and Dean, showed up. Glen climbed his way from the base of the sliding door alllll the way up to the top lip. After that he started making his way back down, opting to employ gravity instead of skill for the last few feet. (He survived, and hopped away into the night).
Hobbes (one of our kitties) pointed out Randy by way of her "ack"-ing and tail wagging :). Robyn saw Dean off in the distance, being a frog as hard as he could.

Our kitten, Maggie, doesn't look very interested. Don't let her fool you, though, she's fierce. Rawr.
As far as we could tell, they were either Common Grey Treefrogs (
Hyla versicolor) or Cope's Grey Treefrogs (
Hyla chrysoscelis). The markings looked correct: parallel stripes on the legs, bright yellow (orange?) patches underneath the legs and lower abdomen.