US Weather Extremes: Top 10 Driest Cities

10 least humid cities Avg relative humidity in % 1. Las Vegas, Nevada 30.5 2. Phoenix, Arizona 37.0 3. Yuma, Arizona 38.0 4. Tucson, Arizona 39.0 5. El Paso, Texas 42.5 6. Albuquerque, New Mexico 44.5 7. Winslow, Arizona 46.0 8. Grand Junction, Colorado 48.0 9. Winnemucca, Nevada 48.5 10. Reno, Nevada 50.5