I hate to tell you all, but location or humidity has nothing to do with that smell!!
We have had the opportunity to experience this in pretty much all areas of the country .... it's all the same! Toto can go for a 10 minute walk and stinks to high heaven!! It's no different here in Colorado than it is in Alabama! We don't let her on the ground very often ... that's the most nausiating smell I have ever smelled!!