Solar Energy & Solar Power Resources

Solar Power in 15621 (Calumet, PA)

Solar Energy in 15621

Sorry, historical solar radition values for 15621 are currently unavailable, please check back later.

Solar Panels in 15621

Solar panels in 15621 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 15621

The total length of the day in 15621 (Calumet, PA) today (September 19, 2026) will be 12 hours and 20 minutes. [More]

Solar Energy in 15621 (Calumet, PA)

Solar Energy Data for 15621

See the chart below to see how different types of solar panel installations compare in 15621.

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

Solar Energy Analysis for 15621

Sorry, it is not possible to complete our solar energy analysis for 15621 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 15621

Solar Radiation Data in 15621

See the chart below for monthly solar radiation levels in 15621.

Sorry, data is not currently available.

Solar Radiation Analysis for 15621

Sorry, it is not possible to complete our solar radiation analysis for 15621 at this time.

Historical solar radiation data for 15621 is not currently available.

Please check back later.

Solar Power Comparison: 15621 vs. the U.S.

Solar Power Levels in 15621

Sorry, solar radiation data for 15621 is not currently available.

Solar Power: 15621 vs. the U.S.

Below is a month-by-month comparison of how average 15621 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 15621

Sunrise / Sunset in 15621

Sunrise/Sunset for September 19, 2026 ^[2]
- Sunrise: 7:01 am
- Sunset: 7:21 pm
- Length of Day: 12:20

Best Months for Solar in 15621

Monthly data not currently available.

Solar Panel Installs in 15621

We do not have data on solar panel installations in ZIP Code 15621 at the current time.

Solar Power Output in 15621

The Power of Solar in 15621

Monthly AC solar system output averages for 15621. Month-by-month solar power, as ranked by AC output, in 15621. ^[2]

AC output data is not currently available.

Solar Output Analysis for 15621

Sorry, it is not possible to complete our solar radiation analysis for 15621 at this time.

Historical solar radiation data for 15621 is not currently available.

Please check back later.

Weather Forecast for 15621 ^[5]

Sat Sep 19

74°F

Sky Is Clear
Min: 60°F
Max: 84°F

Gentle Breeze: 9 mps SSE
Precip.: n/a
Humidity: 64%
Cloud cover: 10%

Sun Sep 20

80°F

Heavy Intensity Rain
Min: 63°F
Max: 81°F

Moderate breeze: 13 mps WNW
Precip.: Chance of Rain
Humidity: 85%
Cloud cover: 100%

Mon Sep 21

66°F

Overcast Clouds
Min: 53°F
Max: 68°F

Gentle Breeze: 10 mps ENE
Precip.: n/a
Humidity: 59%
Cloud cover: 98%

Tue Sep 22

58°F

Heavy Intensity Rain
Min: 54°F
Max: 60°F

Moderate breeze: 13 mps E
Precip.: Chance of Rain
Humidity: 96%
Cloud cover: 100%

Wed Sep 23

61°F

Moderate Rain
Min: 51°F
Max: 61°F

Moderate breeze: 14 mps ESE
Precip.: Chance of Rain
Humidity: 66%
Cloud cover: 89%

Thu Sep 24

61°F

Light Rain
Min: 53°F
Max: 61°F

Gentle Breeze: 9 mps E
Precip.: Chance of Rain
Humidity: 82%
Cloud cover: 100%

More about 15621

About 15621

The ZIP code 15621 is associated with the city of Calumet in Westmoreland County in Pennsylvania.

15621 Solar Energy & Power

To learn more about solar energy and solar power in 15621, or for more solar-related resources for PA, check out the U.S. Energy Information Administration.