Sunniest US Cities
The major cities in United States with the most sun year round are Phoenix and Las Vegas. Both are sunny for 85 percent of the time between sunrise and sunset, amounting to over 3800 hours a year.
It gets even sunnier during July and August in Sacramento, California, where the sun shines 96% of the time and all but nine days in those two months have mainly clear skies. During winter though, clouds move in and Sacramento sees sun for less than half of the daylight hours.
Meanwhile on the California coast, the pattern reverses. San Diego, another of the top-ranking US cities for sunshine, gets more sun in winter than in summer.
The major cities included in the weather rankings represent the metropolitan areas in the United States with over one million people in 2010.
|City||% Sunshine||Hours of Sun||Clear Days|
|Las Vegas, Nevada||85||3825||210|
|Los Angeles, California||73||–||147|
|Oklahoma City, Oklahoma||68||3089||139|
|San Diego, California||68||3055||146|
|Salt Lake City, Utah||66||3029||125|
|San Francisco, California||66||–||160|
% sunshine is the percentage of time between sunrise and sunset that sun reaches the earth's surface. Clear days is the number days a year when clouds cover less than one-third of the sky on average.
NOAA National Climatic Data Center. Comparative Climatic Data Publication.
World Data Center for Meteorology. Climate of the World.