Solar Energy & Solar Power Resources

Solar Energy in Dumfries, VA

Solar Energy in Dumfries

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

Solar Panels in Dumfries

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

Sunrise & Sunset in Dumfries

The total length of the day in Dumfries, VA today (August 16, 2026) will be 13 hours and 40 minutes. [More]

Solar Power in Dumfries, VA

Solar Energy Data in Dumfries, VA

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

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

Solar Energy Analysis for Dumfries, VA

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

Solar Radiation Data in Dumfries, VA

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

Sorry, data is not currently available.

Solar Radiation Analysis for Dumfries, VA

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

Historical solar radiation data for Dumfries is not currently available.

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

Solar Power Levels in Dumfries

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

Solar Power: Dumfries vs. the U.S.

Below is a month-by-month comparison of how average Dumfries 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 Virginia is not currently available.

Solar Data & Statistics for Dumfries

Sunrise / Sunset in Dumfries

Sunrise/Sunset for August 16, 2026 ^[2]
- Sunrise: 6:23 am
- Sunset: 8:03 pm
- Length of Day: 13:40

Best Months for Solar in Dumfries

Monthly data not currently available.

Solar Panel Installs in Dumfries

We do not currently have data on solar panel installations in the town of Dumfries, VA at this current time.

Solar Power Output in Dumfries

The Power of Solar in Dumfries, VA

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

AC output data is not currently available.

Solar Output Analysis for Dumfries, VA

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

Historical solar radiation data for Dumfries is not currently available.

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Cost of Utilities in Dumfries

Dumfries Electricity Costs

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Solar Power Poll: Dumfries

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

Dumfries Natural Gas Costs

Sorry, Virginia residential natural gas prices are currently unavailable.

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Weather Forecast for Dumfries, VA ^[5]

Sun Aug 16

76°F

Moderate Rain
Min: 74°F
Max: 85°F

Gentle Breeze: 11 mps SSW
Precip.: Chance of Rain
Humidity: 77%
Cloud cover: 97%

Mon Aug 17

89°F

Moderate Rain
Min: 75°F
Max: 94°F

Gentle Breeze: 10 mps NW
Precip.: Chance of Rain
Humidity: 49%
Cloud cover: 46%

Tue Aug 18

86°F

Broken Clouds
Min: 68°F
Max: 88°F

Light breeze: 6 mps N
Precip.: n/a
Humidity: 46%
Cloud cover: 66%

Wed Aug 19

92°F

Light Rain
Min: 70°F
Max: 93°F

Light breeze: 5 mps SE
Precip.: Chance of Rain
Humidity: 47%
Cloud cover: 22%

Thu Aug 20

90°F

Light Rain
Min: 70°F
Max: 90°F

Gentle Breeze: 8 mps N
Precip.: Chance of Rain
Humidity: 48%
Cloud cover: 21%

Fri Aug 21

67°F

Light Rain
Min: 66°F
Max: 72°F

Light breeze: 7 mps NE
Precip.: Chance of Rain
Humidity: 84%
Cloud cover: 100%

More about Dumfries

About Dumfries

The town of Dumfries, VA in Prince William County has an approximate population of 4,961. ^[6]

Dumfries, VA Solar Energy

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