[abakker]

In CA, swamp coolers can be really great - http://www.homedepot.com/b/Heating-Venting-Cooling-Air-Condi...

I used one when I worked with a friend in LA on a car restoration project. They can generate a LOT of cooling very quickly as long as it is dry outside.

[maxerickson]

It's funny they show the northern Midwest in the maybe zone. When it is hot here, it is usually also quite humid.