US Weather Extremes: Top 10 Sunniest Cities

10 sunniest cities Annual percent of possible sunshine 1. Yuma, Arizona 90% 2. Las Vegas, Nevada 85% 3. Phoenix, Arizona 85% 4. Tucson, Arizona 85% 5. El Paso, Texas 83% 6. Flagstaff, Arizona 79% 7. Fresno, California 79% 8. Reno, Nevada 79% 9. Sacramento, California 78% 10. Albuquerque, N.M. 76%