Not sure exactly what "expected to be" means here, but Phoenix is statistically the city with the highest temperature in the US, so providing it continues to be so, it could be expected to be that in the future as well.
Miami, LA, Dallas. Maybe.
In 1910, the US city with the highest per capita income was New York City.
New York City
Denver
Reno
Alma, Colorado
new york
The Mile High City - Denver, Colorado.
death valley in southern California has clocked in the highest temp in the u.s so far.
Flint, Michigan had the highest murder rate in the US for 2010.
new york
Leadville, Colorado.