Solar Energy & Solar Power Resources

Solar Power in 72821 (Altus, AR)

Solar Energy in 72821

Sorry, historical solar radition values for 72821 are currently unavailable, please check back later.

Solar Panels in 72821

Solar panels in 72821 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 72821

The total length of the day in 72821 (Altus, AR) today (September 20, 2026) will be 12 hours and 16 minutes. [More]

Solar Energy in 72821 (Altus, AR)

Solar Energy Data for 72821

See the chart below to see how different types of solar panel installations compare in 72821.

Historical solar power output data for Altus is not currently available.

Solar Energy Analysis for 72821

Sorry, it is not possible to complete our solar energy analysis for 72821 at this time.

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Solar Energy Glossary

Global Horizontal Irradiance (GHI)

Global Horizontal Irradiance: The total amount of solar radiation that is received per unit area by a surface that is always positioned in a horizontal manner.

Direct Normal Irradiance (DNI)

Direct Normal Irradiance: The total amount of solar radiation received per unit area by a surface that is always perpendicular to the sun rays that come in a straight line from the direction of the sun at its current position in the sky.

Average Tilt at Latitude (ATaL)

Average Tilt at Latitude: The total amount of solar radiation received per unit area by a surface that is tilted toward the equator at an angle equal to the current latitude. ATaL will often produce the optimum energy output.

Solar Radiation Levels in 72821

Solar Radiation Data in 72821

See the chart below for monthly solar radiation levels in 72821.

Sorry, data is not currently available.

Solar Radiation Analysis for 72821

Sorry, it is not possible to complete our solar radiation analysis for 72821 at this time.

Historical solar radiation data for 72821 is not currently available.

Please check back later.

Solar Power Comparison: 72821 vs. the U.S.

Solar Power Levels in 72821

Sorry, solar radiation data for 72821 is not currently available.

Solar Power: 72821 vs. the U.S.

Below is a month-by-month comparison of how average 72821 solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). ^[1]

Sorry, solar radiation data for Arkansas is not currently available.

Solar Data & Statistics for 72821

Sunrise / Sunset in 72821

Sunrise/Sunset for September 20, 2026 ^[2]
- Sunrise: 7:00 am
- Sunset: 7:16 pm
- Length of Day: 12:16

Best Months for Solar in 72821

Monthly data not currently available.

Solar Panel Installs in 72821

We do not have data on solar panel installations in ZIP Code 72821 at the current time.

Solar Power Output in 72821

The Power of Solar in 72821

Monthly AC solar system output averages for 72821. Month-by-month solar power, as ranked by AC output, in 72821. ^[2]

AC output data is not currently available.

Solar Output Analysis for 72821

Sorry, it is not possible to complete our solar radiation analysis for 72821 at this time.

Historical solar radiation data for 72821 is not currently available.

Please check back later.

Weather Forecast for 72821 ^[5]

Sun Sep 20

95°F

Broken Clouds
Min: 71°F
Max: 96°F

Light breeze: 5 mps NNW
Precip.: n/a
Humidity: 40%
Cloud cover: 58%

Mon Sep 21

89°F

Moderate Rain
Min: 68°F
Max: 91°F

Gentle Breeze: 9 mps NE
Precip.: Chance of Rain
Humidity: 66%
Cloud cover: 11%

Tue Sep 22

86°F

Sky Is Clear
Min: 65°F
Max: 88°F

Gentle Breeze: 8 mps NE
Precip.: n/a
Humidity: 49%
Cloud cover: 10%

Wed Sep 23

83°F

Scattered Clouds
Min: 68°F
Max: 87°F

Gentle Breeze: 10 mps ENE
Precip.: n/a
Humidity: 49%
Cloud cover: 25%

Thu Sep 24

79°F

Scattered Clouds
Min: 64°F
Max: 84°F

Light breeze: 8 mps ENE
Precip.: n/a
Humidity: 49%
Cloud cover: 45%

Fri Sep 25

81°F

Few Clouds
Min: 63°F
Max: 83°F

Light breeze: 6 mps ENE
Precip.: n/a
Humidity: 48%
Cloud cover: 22%

More about 72821

About 72821

The ZIP code 72821 is associated with the city of Altus in Franklin County in Arkansas.

72821 Solar Energy & Power

To learn more about solar energy and solar power in 72821, or for more solar-related resources for AR, check out the U.S. Energy Information Administration.