Solar Energy & Solar Power Resources

Solar Energy in Graf, IA

Solar Energy in Graf

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

Solar Panels in Graf

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

Sunrise & Sunset in Graf

The total length of the day in Graf, IA today (September 12, 2026) will be 12 hours and 41 minutes. [More]

Solar Power in Graf, IA

Solar Energy Data in Graf, IA

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

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

Solar Energy Analysis for Graf, IA

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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 Graf

Solar Radiation Data in Graf, IA

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

Sorry, data is not currently available.

Solar Radiation Analysis for Graf, IA

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Historical solar radiation data for Graf is not currently available.

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

Solar Power Levels in Graf

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

Solar Power: Graf vs. the U.S.

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

Sunrise / Sunset in Graf

Sunrise/Sunset for September 12, 2026 ^[2]
- Sunrise: 6:39 am
- Sunset: 7:20 pm
- Length of Day: 12:41

Best Months for Solar in Graf

Monthly data not currently available.

Solar Panel Installs in Graf

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

Solar Power Output in Graf

The Power of Solar in Graf, IA

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

AC output data is not currently available.

Solar Output Analysis for Graf, IA

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

Historical solar radiation data for Graf is not currently available.

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Cost of Utilities in Graf

Graf Electricity Costs

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Solar Power Poll: Graf

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

Graf Natural Gas Costs

Sorry, Iowa residential natural gas prices are currently unavailable.

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Weather Forecast for Graf, IA ^[5]

Sat Sep 12

73°F

Scattered Clouds
Min: 65°F
Max: 82°F

Moderate breeze: 13 mps NNW
Precip.: n/a
Humidity: 61%
Cloud cover: 27%

Sun Sep 13

65°F

Light Rain
Min: 55°F
Max: 71°F

Gentle Breeze: 11 mps N
Precip.: Chance of Rain
Humidity: 62%
Cloud cover: 99%

Mon Sep 14

67°F

Light Rain
Min: 48°F
Max: 71°F

Fresh Breeze: 19 mps SSE
Precip.: Chance of Rain
Humidity: 46%
Cloud cover: 59%

Tue Sep 15

74°F

Moderate Rain
Min: 61°F
Max: 74°F

Gentle Breeze: 11 mps S
Precip.: Chance of Rain
Humidity: 80%
Cloud cover: 98%

Wed Sep 16

60°F

Light Rain
Min: 55°F
Max: 62°F

Gentle Breeze: 8 mps ENE
Precip.: Chance of Rain
Humidity: 96%
Cloud cover: 100%

Thu Sep 17

62°F

Light Rain
Min: 56°F
Max: 63°F

Light breeze: 7 mps N
Precip.: Chance of Rain
Humidity: 97%
Cloud cover: 100%

More about Graf

About Graf

The city of Graf, IA in Dubuque County has an approximate population of 79. ^[6]

Graf, IA Solar Energy

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