Solar Energy & Solar Power Resources

Solar Energy in Mattoon, IL

Solar Energy in Mattoon

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

Solar Panels in Mattoon

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

Sunrise & Sunset in Mattoon

The total length of the day in Mattoon, IL today (September 05, 2026) will be 12 hours and 55 minutes. [More]

Solar Power in Mattoon, IL

Solar Energy Data in Mattoon, IL

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

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

Solar Energy Analysis for Mattoon, IL

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

Solar Radiation Data in Mattoon, IL

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

Sorry, data is not currently available.

Solar Radiation Analysis for Mattoon, IL

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

Historical solar radiation data for Mattoon is not currently available.

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

Solar Power Levels in Mattoon

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

Solar Power: Mattoon vs. the U.S.

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

Sunrise / Sunset in Mattoon

Sunrise/Sunset for September 05, 2026 ^[2]
- Sunrise: 6:24 am
- Sunset: 7:19 pm
- Length of Day: 12:55

Best Months for Solar in Mattoon

Monthly data not currently available.

Solar Panel Installs in Mattoon

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

Solar Power Output in Mattoon

The Power of Solar in Mattoon, IL

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

AC output data is not currently available.

Solar Output Analysis for Mattoon, IL

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

Historical solar radiation data for Mattoon is not currently available.

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Cost of Utilities in Mattoon

Mattoon Electricity Costs

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Solar Power Poll: Mattoon

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

Mattoon Natural Gas Costs

Sorry, Illinois residential natural gas prices are currently unavailable.

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Weather Forecast for Mattoon, IL ^[5]

Sat Sep 5

94°F

Few Clouds
Min: 72°F
Max: 97°F

Moderate breeze: 15 mps NE
Precip.: n/a
Humidity: 38%
Cloud cover: 12%

Sun Sep 6

81°F

Sky Is Clear
Min: 63°F
Max: 85°F

Moderate breeze: 14 mps NE
Precip.: n/a
Humidity: 43%
Cloud cover: 1%

Mon Sep 7

81°F

Scattered Clouds
Min: 59°F
Max: 85°F

Gentle Breeze: 12 mps E
Precip.: n/a
Humidity: 40%
Cloud cover: 27%

Tue Sep 8

90°F

Overcast Clouds
Min: 63°F
Max: 95°F

Gentle Breeze: 9 mps SSE
Precip.: n/a
Humidity: 34%
Cloud cover: 100%

Wed Sep 9

99°F

Light Rain
Min: 73°F
Max: 102°F

Moderate breeze: 14 mps SW
Precip.: Chance of Rain
Humidity: 28%
Cloud cover: 9%

Thu Sep 10

81°F

Light Rain
Min: 64°F
Max: 81°F

Moderate breeze: 15 mps NNE
Precip.: Chance of Rain
Humidity: 42%
Cloud cover: 100%

More about Mattoon

About Mattoon

The city of Mattoon, IL in Coles County has an approximate population of 18,555. ^[6]

Mattoon, IL Solar Energy

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