How hot has it been there? A lot of vegetables won't set fruit when the temperature gets above a certain point.

Is the plant from saved seeds or bought seeds or transplant? What variety is it?

It's been in the 90s with fairly high humidity. Once the temps dropped into the lower 90s, it produced one cucumber. I'm hoping that's a good sign and that now that it's cooled down even more, maybe it will produce more.

The plant is one I bought at a hardware store, not from seed. The variety is Boston pickling cucumber. Any advice on that kind?

i'm in same zone as you, and wasn't getting any either, UNTIL, i started pruning them like tomato plants. first i pruned all leaves the first foot and half off of ground to get air flow...and i also pruned all the leaves that showed even the littlest yellow. then a week later..BOOM...all of a sudden, it seemed that all that once were flowers, had fruits, then a week after that, a TON. not kidding. now it seems i have more leaves than before, too, and had to prune a little today, and will do a ton tomorrow too.

prune them. ive heard the plant thinks it needs to go to seed right away, after this happens. note however that i have approx 20 plants sharing the same trellis that is six feet long. they need air and space.