Solar Energy & Solar Power Resources

Solar Energy in Allentown, PA

Solar Energy in Allentown

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

Solar Panels in Allentown

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

Sunrise & Sunset in Allentown

The total length of the day in Allentown, PA today (September 16, 2025) will be 12 hours and 28 minutes. [More]

Solar Power in Allentown, PA

Solar Energy Data in Allentown, PA

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

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

Solar Energy Analysis for Allentown, PA

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

Solar Radiation Data in Allentown, PA

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

Sorry, data is not currently available.

Solar Radiation Analysis for Allentown, PA

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

Historical solar radiation data for Allentown is not currently available.

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

Solar Power Levels in Allentown

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

Solar Power: Allentown vs. the U.S.

Below is a month-by-month comparison of how average Allentown 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 Pennsylvania is not currently available.

Solar Data & Statistics for Allentown

Sunrise / Sunset in Allentown

Sunrise/Sunset for September 16, 2025 ^[2]
- Sunrise: 6:42 am
- Sunset: 7:10 pm
- Length of Day: 12:28

Best Months for Solar in Allentown

Monthly data not currently available.

Solar Panel Installs in Allentown

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

Solar Power Output in Allentown

The Power of Solar in Allentown, PA

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

AC output data is not currently available.

Solar Output Analysis for Allentown, PA

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

Historical solar radiation data for Allentown is not currently available.

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Cost of Utilities in Allentown

Allentown Electricity Costs

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Solar Power Poll: Allentown

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

Allentown Natural Gas Costs

Sorry, Pennsylvania residential natural gas prices are currently unavailable.

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Weather Forecast for Allentown, PA ^[5]

Tue Sep 16

73°F

Broken Clouds
Min: 61°F
Max: 74°F

Gentle Breeze: 11 mps E
Precip.: n/a
Humidity: 61%
Cloud cover: 80%

Wed Sep 17

65°F

Light Rain
Min: 60°F
Max: 65°F

Gentle Breeze: 12 mps ENE
Precip.: Chance of Rain
Humidity: 80%
Cloud cover: 100%

Thu Sep 18

75°F

Light Rain
Min: 62°F
Max: 78°F

Light breeze: 6 mps WNW
Precip.: Chance of Rain
Humidity: 68%
Cloud cover: 93%

Fri Sep 19

76°F

Few Clouds
Min: 59°F
Max: 80°F

Moderate breeze: 14 mps NNW
Precip.: n/a
Humidity: 50%
Cloud cover: 16%

Sat Sep 20

66°F

Sky Is Clear
Min: 51°F
Max: 73°F

Gentle Breeze: 9 mps ENE
Precip.: n/a
Humidity: 35%
Cloud cover: 0%

Sun Sep 21

67°F

Scattered Clouds
Min: 48°F
Max: 75°F

Gentle Breeze: 9 mps SSE
Precip.: n/a
Humidity: 49%
Cloud cover: 35%

More about Allentown

About Allentown

The city of Allentown, PA in Lehigh County has an approximate population of 118,032. ^[6]

Allentown, PA Solar Energy

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