Agreed on 0 being optimal but for shits and giggles..

West coastland- Cali, Oregon, Washington, BC

Desert SW- Zona, Nevada, NM, Utah

Mountain west- Colorado, Wyoming, Montana, Idaho, Alberta, Sask

Artic circle- Alaska, Yukon, Nw Territories, Nun

Great Plains- Oklahoma, Kansas, Nebraska, SD, ND, Iowa, Manitoba

Great Lakes- Minnesota, Wisconsin, Illinoiis, Indy, Michigan, Ohio, PA, NY, Ontario

The SEC- Texas, Missouri, Arkansas, Louisiana, Mississippi, Bama, Tenn, Ky, Fl, S Carolina

Mid Atlantic- NC, Virginia, Maryland, WV (no idea where to put them- own country?), Deleware, Jersey

New England and new France- Connecticut, RI, Mass, Vermont, NH, Maine, Quebec, New Bruns, Prince Ed, Nova Scotia, Newfoundland

Hawaii