Two regions dominate the top ten list of the sunniest places in the world. Half of the ten sunniest places on record are in the American southwest states of Arizona, Nevada and Texas. The other sunny region is in northeast Africa. It spans southern Egypt, northern Sudan and northern Chad, taking in the Nile Valley and deserts to the west.
Yuma, located in western Arizona near the borders with Mexico and California, is the only place on earth confirmed to bask in more than 4000 hours of sunshine a year. Altogether 90 percent of the daylight in Yuma is sunny. Year round, Yuma averages 11 hours of sun a day.
