Solar Energy & Solar Power Resources

Solar Power in 21742 (Hagerstown, MD)

Solar Energy in 21742

Sorry, historical solar radition values for 21742 are currently unavailable, please check back later.

Solar Panels in 21742

Solar panels in 21742 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 21742

The total length of the day in 21742 (Hagerstown, MD) today (July 13, 2026) will be 14 hours and 48 minutes. [More]

Solar Energy in 21742 (Hagerstown, MD)

Solar Energy Data for 21742

See the chart below to see how different types of solar panel installations compare in 21742.

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

Solar Energy Analysis for 21742

Sorry, it is not possible to complete our solar energy analysis for 21742 at this time.

Please check back later.

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 21742

Solar Radiation Data in 21742

See the chart below for monthly solar radiation levels in 21742.

Sorry, data is not currently available.

Solar Radiation Analysis for 21742

Sorry, it is not possible to complete our solar radiation analysis for 21742 at this time.

Historical solar radiation data for 21742 is not currently available.

Please check back later.

Solar Power Comparison: 21742 vs. the U.S.

Solar Power Levels in 21742

Sorry, solar radiation data for 21742 is not currently available.

Solar Power: 21742 vs. the U.S.

Below is a month-by-month comparison of how average 21742 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 Maryland is not currently available.

Solar Data & Statistics for 21742

Sunrise / Sunset in 21742

Sunrise/Sunset for July 13, 2026 ^[2]
- Sunrise: 5:52 am
- Sunset: 8:40 pm
- Length of Day: 14:48

Best Months for Solar in 21742

Monthly data not currently available.

Solar Panel Installs in 21742

We do not have data on solar panel installations in ZIP Code 21742 at the current time.

Solar Power Output in 21742

The Power of Solar in 21742

Monthly AC solar system output averages for 21742. Month-by-month solar power, as ranked by AC output, in 21742. ^[2]

AC output data is not currently available.

Solar Output Analysis for 21742

Sorry, it is not possible to complete our solar radiation analysis for 21742 at this time.

Historical solar radiation data for 21742 is not currently available.

Please check back later.

Weather Forecast for 21742 ^[5]

Mon Jul 13

81°F

Sky Is Clear
Min: 64°F
Max: 88°F

Gentle Breeze: 9 mps SSE
Precip.: n/a
Humidity: 60%
Cloud cover: 5%

Tue Jul 14

91°F

Sky Is Clear
Min: 69°F
Max: 99°F

Light breeze: 7 mps SSW
Precip.: n/a
Humidity: 51%
Cloud cover: 2%

Wed Jul 15

94°F

Sky Is Clear
Min: 68°F
Max: 97°F

Gentle Breeze: 11 mps NW
Precip.: n/a
Humidity: 45%
Cloud cover: 9%

Thu Jul 16

95°F

Overcast Clouds
Min: 72°F
Max: 95°F

Moderate breeze: 13 mps NW
Precip.: n/a
Humidity: 39%
Cloud cover: 86%

Fri Jul 17

88°F

Broken Clouds
Min: 67°F
Max: 89°F

Gentle Breeze: 11 mps NW
Precip.: n/a
Humidity: 38%
Cloud cover: 72%

Sat Jul 18

93°F

Moderate Rain
Min: 66°F
Max: 93°F

Gentle Breeze: 11 mps NE
Precip.: Chance of Rain
Humidity: 44%
Cloud cover: 95%

More about 21742

About 21742

The ZIP code 21742 is associated with the city of Hagerstown in Washington County in Maryland.

21742 Solar Energy & Power

To learn more about solar energy and solar power in 21742, or for more solar-related resources for MD, check out the U.S. Energy Information Administration.