Solar Energy & Solar Power Resources

Solar Energy in Marathon, IA

Solar Energy in Marathon

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

Solar Panels in Marathon

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

Sunrise & Sunset in Marathon

The total length of the day in Marathon, IA today (October 28, 2025) will be 10 hours and 30 minutes. [More]

Solar Power in Marathon, IA

Solar Energy Data in Marathon, IA

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

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

Solar Energy Analysis for Marathon, IA

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

Solar Radiation Data in Marathon, IA

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

Sorry, data is not currently available.

Solar Radiation Analysis for Marathon, IA

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

Historical solar radiation data for Marathon is not currently available.

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

Solar Power Levels in Marathon

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

Solar Power: Marathon vs. the U.S.

Below is a month-by-month comparison of how average Marathon 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 Iowa is not currently available.

Solar Data & Statistics for Marathon

Sunrise / Sunset in Marathon

Sunrise/Sunset for October 28, 2025 ^[2]
- Sunrise: 7:48 am
- Sunset: 6:18 pm
- Length of Day: 10:30

Best Months for Solar in Marathon

Monthly data not currently available.

Solar Panel Installs in Marathon

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

Solar Power Output in Marathon

The Power of Solar in Marathon, IA

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

AC output data is not currently available.

Solar Output Analysis for Marathon, IA

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

Historical solar radiation data for Marathon is not currently available.

Please check back later.

Cost of Utilities in Marathon

Marathon Electricity Costs

Sorry, Marathon residential electricity prices are currently unavailable.

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Solar Power Poll: Marathon

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

Marathon Natural Gas Costs

Sorry, Iowa residential natural gas prices are currently unavailable.

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Weather Forecast for Marathon, IA ^[5]

Tue Oct 28

47°F

Moderate Rain
Min: 44°F
Max: 49°F

Fresh Breeze: 24 mps N
Precip.: Chance of Rain
Humidity: 92%
Cloud cover: 100%

Wed Oct 29

51°F

Light Rain
Min: 41°F
Max: 53°F

Fresh Breeze: 19 mps N
Precip.: Chance of Rain
Humidity: 55%
Cloud cover: 81%

Thu Oct 30

50°F

Broken Clouds
Min: 38°F
Max: 52°F

Gentle Breeze: 11 mps W
Precip.: n/a
Humidity: 56%
Cloud cover: 69%

Fri Oct 31

47°F

Sky Is Clear
Min: 36°F
Max: 48°F

Moderate breeze: 15 mps WNW
Precip.: n/a
Humidity: 41%
Cloud cover: 4%

Sat Nov 1

43°F

Overcast Clouds
Min: 33°F
Max: 44°F

Light breeze: 6 mps WNW
Precip.: n/a
Humidity: 51%
Cloud cover: 100%

Sun Nov 2

46°F

Broken Clouds
Min: 34°F
Max: 50°F

Moderate breeze: 13 mps SSW
Precip.: n/a
Humidity: 42%
Cloud cover: 55%

More about Marathon

About Marathon

The city of Marathon, IA in Buena Vista County has an approximate population of 237. ^[6]

Marathon, IA Solar Energy

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