This map is a work in progress.  It was compiled by a woman on Facebook from the DVG-America site.  Even needing corrections, it is pretty cool that she put this together.  She used the address of the training director as the location of the club since some clubs have officers in a number of cities.

DVG map here

We have shade at the club and water and often a pool.  Here are some tips from WebMD about your dog and summer heat.