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.
Yuma's sunniest month is June, when it's sunny for 97 percent of the time between sunrise to sunset. The month gets a total 415 hours of sunshine.
The rankings here are based on the sunshine averages for 1961 to 1990 that were provided for 129 countries and territories to the World Meteorological Organization. These come from 1800 weather stations scattered across all the continents, ranging from the Antarctic to the northern tip of North America. Altogether, climate stations around the world average 2334 hours of sun a year, equal to 6 hours and 24 minutes of sunshine a day.