You might want to read up a little on www.freshops.com
In general most references say hops grow between 30 and 50 degrees latitude.
I would sure like to see the various hop varieties interpolated onto a cliamte zone map like they do for roses and daisies and what all else. Fruit trees...
Ya know? If my local climate is ideal for say uhh - Centenial - just as an example - than I would rather grow a truckload of Centenial and have tradebait, rather than have some weak EKG vines with three hops, four caterpillars and no trade bait.
Growing hop questions is probably about four new threads away from one big merged sticky. I shall go track down the freshop page and edit into this post.
EDIT: the freshops page on home hop gardening: