Still hanging on in zone 3
This Fall has been mild, with plenty of sunshine and temps consistently above average (average is now is a high of 15C/59F, low of 2C/36F). Lately we've been running about 21C/70F by day, 7C/45F at night). Looks like a few more days of warmth, then below-average temps and nighttime frost.
My Hungarian Hot Wax, Firecracker, and Hot Charleston peppers are all enjoying the warm fall weather (not to mention the pumpkins and blackberries :))
Here's how my Charleston Hot pepper is doing. I did a first picking of red-ripe peppers and turned them into hot sauce 10 days ago, the plants are ready for a second picking of ripe peppers now. Still lots of peppers to ripen though, but at least now the bulk of peppers are now mostly yellow instead of green like when I last posted pics on Sept. 8.