Was looking through this and took exception to your comment;
"I used the areas as defined in the farmers almanac. It was easy that way!

Mike..."
Most times the easy way is not the correct way, ....
The encyclopedia Britannica defines the Southwest as;
http://www.britannica.com/EBchecked/top ... /Southwest
The Dept. of Interior's Office of Solicitor defines their various Regions as;
http://www.doi.gov/solicitor/regions.html
So, in keeping with the thought behind your signature,
"The quality is remembered long after the price is forgotten, so build your teardrop with the best materials..."
wouldn't it be more consistent with quality to place States in there correct geographic Regions?
Just something to consider...
hank