Solar Energy & Solar Power Resources

Solar Energy in Herrin, IL

Solar Energy in Herrin

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

Solar Panels in Herrin

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

Sunrise & Sunset in Herrin

The total length of the day in Herrin, IL today (July 21, 2026) will be 14 hours and 26 minutes. [More]

Solar Power in Herrin, IL

Solar Energy Data in Herrin, IL

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

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

Solar Energy Analysis for Herrin, IL

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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 Herrin

Solar Radiation Data in Herrin, IL

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

Sorry, data is not currently available.

Solar Radiation Analysis for Herrin, IL

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

Historical solar radiation data for Herrin is not currently available.

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

Solar Power Levels in Herrin

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

Solar Power: Herrin vs. the U.S.

Below is a month-by-month comparison of how average Herrin 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 Illinois is not currently available.

Solar Data & Statistics for Herrin

Sunrise / Sunset in Herrin

Sunrise/Sunset for July 21, 2026 ^[2]
- Sunrise: 5:49 am
- Sunset: 8:15 pm
- Length of Day: 14:26

Best Months for Solar in Herrin

Monthly data not currently available.

Solar Panel Installs in Herrin

We do not currently have data on solar panel installations in the city of Herrin, IL at this current time.

Solar Power Output in Herrin

The Power of Solar in Herrin, IL

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

AC output data is not currently available.

Solar Output Analysis for Herrin, IL

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

Historical solar radiation data for Herrin is not currently available.

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Cost of Utilities in Herrin

Herrin Electricity Costs

Sorry, Herrin residential electricity prices are currently unavailable.

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Solar Power Poll: Herrin

Vote now: Given all of the data and analysis provided for Herrin, is solar power a good choice for residents of this city?

Herrin Natural Gas Costs

Sorry, Illinois residential natural gas prices are currently unavailable.

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Weather Forecast for Herrin, IL ^[5]

Tue Jul 21

89°F

Moderate Rain
Min: 72°F
Max: 91°F

Moderate breeze: 13 mps NNW
Precip.: Chance of Rain
Humidity: 78%
Cloud cover: 16%

Wed Jul 22

79°F

Scattered Clouds
Min: 64°F
Max: 80°F

Moderate breeze: 13 mps NNE
Precip.: n/a
Humidity: 60%
Cloud cover: 28%

Thu Jul 23

75°F

Broken Clouds
Min: 57°F
Max: 77°F

Gentle Breeze: 9 mps ENE
Precip.: n/a
Humidity: 55%
Cloud cover: 62%

Fri Jul 24

68°F

Light Rain
Min: 63°F
Max: 68°F

Gentle Breeze: 8 mps NNE
Precip.: Chance of Rain
Humidity: 78%
Cloud cover: 100%

Sat Jul 25

81°F

Broken Clouds
Min: 64°F
Max: 85°F

Gentle Breeze: 9 mps SSW
Precip.: n/a
Humidity: 65%
Cloud cover: 75%

Sun Jul 26

93°F

Scattered Clouds
Min: 74°F
Max: 95°F

Gentle Breeze: 9 mps SW
Precip.: n/a
Humidity: 60%
Cloud cover: 36%

More about Herrin

About Herrin

The city of Herrin, IL in Williamson County has an approximate population of 12,501. ^[6]

Herrin, IL Solar Energy

To learn more about solar energy and solar power Herrin, IL, or for more solar-related resources for Herrin, visit the U.S. Energy Information Administration.