Arizona Sunlight Hours & Renewable Energy Information

Arizona Sun Light Hours Map

Quick Green Energy Summary for Arizona


State Sunlight Rank: 2/50

Average Annual Sunlight Hours: 3700 hours

Clear Days: 193 days per year

Summer Peak Sun Hours: 7.42 hours per day

Winter Peak Sun Hours: 6.01 hours per day

Average Peak Sun Hours : 6.57 hours per day


State Wind Rank : 19/50

Average Annual Wind Speed: 0.07 miles per hour

More Information on Arizona Green Energy

Arizona is one of the best states in the country for solar power, with the second highest peak sun hours and almost 200 clear sunny days a year.

The average peak sun hours of Arizona listed above are the averages for fixed mounted, no-tracking solar panels. So a tracking mount could greatly increase the efficiency of the system.

Arizona gets so much peak sunshine that it could theoretically provide electricity to the entire United States if the technology and the energy storage was efficient enough.

The southern part of the state near Tucson gets more peak sunlight hours than the northern part of the state, but still gets plenty of good sunshine in the North.

When pricing and calculating how solar panels will work for your home or business it is best to use a conservative sunlight hour estimate. A lot of variables factor into accurate estimates and not every hour of sunlight is equal. For example, the tilt of the solar panels, sporadic cloud coverage, time of year, angle of the sun are just a few factors of many that can cause a variety in daily output.

A yearly average specifically looking at peak daily sunlight hours will help eliminate the fluctuation in numbers.

Using a fixed solar panel Arizona receives an average of 6.57 peak sun hours. These are the best hours of solar insolation.