Solar Energy & Solar Power Resources

Solar Power in 78504 (Mcallen, TX)

Solar Energy in 78504

Sorry, historical solar radition values for 78504 are currently unavailable, please check back later.

Solar Panels in 78504

Solar panels in 78504 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 78504

The total length of the day in 78504 (Mcallen, TX) today (February 16, 2026) will be 11 hours and 21 minutes. [More]

Solar Energy in 78504 (Mcallen, TX)

Solar Energy Data for 78504

See the chart below to see how different types of solar panel installations compare in 78504.

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

Solar Energy Analysis for 78504

Sorry, it is not possible to complete our solar energy analysis for 78504 at this time.

Please check back later.

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 78504

Solar Radiation Data in 78504

See the chart below for monthly solar radiation levels in 78504.

Sorry, data is not currently available.

Solar Radiation Analysis for 78504

Sorry, it is not possible to complete our solar radiation analysis for 78504 at this time.

Historical solar radiation data for 78504 is not currently available.

Please check back later.

Solar Power Comparison: 78504 vs. the U.S.

Solar Power Levels in 78504

Sorry, solar radiation data for 78504 is not currently available.

Solar Power: 78504 vs. the U.S.

Below is a month-by-month comparison of how average 78504 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 Texas is not currently available.

Solar Data & Statistics for 78504

Sunrise / Sunset in 78504

Sunrise/Sunset for February 16, 2026 ^[2]
- Sunrise: 7:06 am
- Sunset: 6:27 pm
- Length of Day: 11:21

Best Months for Solar in 78504

Monthly data not currently available.

Solar Panel Installs in 78504

We do not have data on solar panel installations in ZIP Code 78504 at the current time.

Solar Power Output in 78504

The Power of Solar in 78504

Monthly AC solar system output averages for 78504. Month-by-month solar power, as ranked by AC output, in 78504. ^[2]

AC output data is not currently available.

Solar Output Analysis for 78504

Sorry, it is not possible to complete our solar radiation analysis for 78504 at this time.

Historical solar radiation data for 78504 is not currently available.

Please check back later.

Weather Forecast for 78504 ^[5]

Mon Feb 16

74°F

Scattered Clouds
Min: 56°F
Max: 86°F

Moderate breeze: 16 mps SE
Precip.: n/a
Humidity: 54%
Cloud cover: 31%

Tue Feb 17

83°F

Scattered Clouds
Min: 64°F
Max: 88°F

Fresh Breeze: 20 mps SE
Precip.: n/a
Humidity: 39%
Cloud cover: 35%

Wed Feb 18

85°F

Scattered Clouds
Min: 66°F
Max: 91°F

Fresh Breeze: 18 mps SSE
Precip.: n/a
Humidity: 40%
Cloud cover: 40%

Thu Feb 19

88°F

Scattered Clouds
Min: 69°F
Max: 95°F

Fresh Breeze: 20 mps S
Precip.: n/a
Humidity: 37%
Cloud cover: 28%

Fri Feb 20

90°F

Few Clouds
Min: 70°F
Max: 95°F

Moderate breeze: 17 mps SSE
Precip.: n/a
Humidity: 42%
Cloud cover: 12%

Sat Feb 21

83°F

Broken Clouds
Min: 69°F
Max: 85°F

Fresh Breeze: 18 mps NNE
Precip.: n/a
Humidity: 52%
Cloud cover: 67%

More about 78504

About 78504

The ZIP code 78504 is associated with the city of Mcallen in Hidalgo County in Texas.

78504 Solar Energy & Power

To learn more about solar energy and solar power in 78504, or for more solar-related resources for TX, check out the U.S. Energy Information Administration.