The Southwestern states of Arizona and New Mexico are characterized by the following climates arid, semi-arid and Mediterranean.
This is evident where arid to semi-arid climates are found in places like Nevada, Arizona, West Texas, and the and so on where there are desert lands and mountains.
The Mediterranean climates in the region of southwestern are found in places like Wyoming, where there is a form of desert land but capable of experiencing high cold temperatures at night during winter.
I would say it would be true because even though you are visiting for 3 months you will still be breathing the polluted air for the 3 months thus it would affect a person in a negative way and it is true.
