Solar Energy & Solar Power Resources

Solar Power in 77964 (Hallettsville, TX)

Solar Energy in 77964

Sorry, historical solar radition values for 77964 are currently unavailable, please check back later.

Solar Panels in 77964

Solar panels in 77964 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 77964

The total length of the day in 77964 (Hallettsville, TX) today (July 19, 2026) will be 13 hours and 49 minutes. [More]

Solar Energy in 77964 (Hallettsville, TX)

Solar Energy Data for 77964

See the chart below to see how different types of solar panel installations compare in 77964.

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

Solar Energy Analysis for 77964

Sorry, it is not possible to complete our solar energy analysis for 77964 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 77964

Solar Radiation Data in 77964

See the chart below for monthly solar radiation levels in 77964.

Sorry, data is not currently available.

Solar Radiation Analysis for 77964

Sorry, it is not possible to complete our solar radiation analysis for 77964 at this time.

Historical solar radiation data for 77964 is not currently available.

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Solar Power Comparison: 77964 vs. the U.S.

Solar Power Levels in 77964

Sorry, solar radiation data for 77964 is not currently available.

Solar Power: 77964 vs. the U.S.

Below is a month-by-month comparison of how average 77964 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 77964

Sunrise / Sunset in 77964

Sunrise/Sunset for July 19, 2026 ^[2]
- Sunrise: 6:39 am
- Sunset: 8:28 pm
- Length of Day: 13:49

Best Months for Solar in 77964

Monthly data not currently available.

Solar Panel Installs in 77964

We do not have data on solar panel installations in ZIP Code 77964 at the current time.

Solar Power Output in 77964

The Power of Solar in 77964

Monthly AC solar system output averages for 77964. Month-by-month solar power, as ranked by AC output, in 77964. ^[2]

AC output data is not currently available.

Solar Output Analysis for 77964

Sorry, it is not possible to complete our solar radiation analysis for 77964 at this time.

Historical solar radiation data for 77964 is not currently available.

Please check back later.

Weather Forecast for 77964 ^[5]

Sun Jul 19

91°F

Scattered Clouds
Min: 76°F
Max: 94°F

Moderate breeze: 13 mps SSE
Precip.: n/a
Humidity: 48%
Cloud cover: 44%

Mon Jul 20

94°F

Few Clouds
Min: 75°F
Max: 98°F

Gentle Breeze: 12 mps SSE
Precip.: n/a
Humidity: 35%
Cloud cover: 11%

Tue Jul 21

97°F

Scattered Clouds
Min: 72°F
Max: 100°F

Gentle Breeze: 11 mps S
Precip.: n/a
Humidity: 30%
Cloud cover: 32%

Wed Jul 22

96°F

Few Clouds
Min: 75°F
Max: 98°F

Gentle Breeze: 12 mps S
Precip.: n/a
Humidity: 36%
Cloud cover: 19%

Thu Jul 23

95°F

Few Clouds
Min: 76°F
Max: 98°F

Gentle Breeze: 11 mps S
Precip.: n/a
Humidity: 41%
Cloud cover: 19%

Fri Jul 24

97°F

Sky Is Clear
Min: 75°F
Max: 99°F

Gentle Breeze: 12 mps SSE
Precip.: n/a
Humidity: 36%
Cloud cover: 6%

More about 77964

About 77964

The ZIP code 77964 is associated with the city of Hallettsville in Lavaca County in Texas.

77964 Solar Energy & Power

To learn more about solar energy and solar power in 77964, or for more solar-related resources for TX, check out the U.S. Energy Information Administration.