Solar Energy & Solar Power Resources

Solar Power in 91123 (Pasadena, CA)

Solar Energy in 91123

Sorry, historical solar radition values for 91123 are currently unavailable, please check back later.

Solar Panels in 91123

Solar panels in 91123 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 91123

The total length of the day in 91123 (Pasadena, CA) today (March 11, 2025) will be 11 hours and 52 minutes. [More]

Solar Energy in 91123 (Pasadena, CA)

Solar Energy Data for 91123

See the chart below to see how different types of solar panel installations compare in 91123.

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

Solar Energy Analysis for 91123

Sorry, it is not possible to complete our solar energy analysis for 91123 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 91123

Solar Radiation Data in 91123

See the chart below for monthly solar radiation levels in 91123.

Sorry, data is not currently available.

Solar Radiation Analysis for 91123

Sorry, it is not possible to complete our solar radiation analysis for 91123 at this time.

Historical solar radiation data for 91123 is not currently available.

Please check back later.

Solar Power Comparison: 91123 vs. the U.S.

Solar Power Levels in 91123

Sorry, solar radiation data for 91123 is not currently available.

Solar Power: 91123 vs. the U.S.

Below is a month-by-month comparison of how average 91123 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 California is not currently available.

Solar Data & Statistics for 91123

Sunrise / Sunset in 91123

Sunrise/Sunset for March 11, 2025 ^[2]
- Sunrise: 7:06 am
- Sunset: 6:58 pm
- Length of Day: 11:52

Best Months for Solar in 91123

Monthly data not currently available.

Solar Panel Installs in 91123

We do not have data on solar panel installations in ZIP Code 91123 at the current time.

Solar Power Output in 91123

The Power of Solar in 91123

Monthly AC solar system output averages for 91123. Month-by-month solar power, as ranked by AC output, in 91123. ^[2]

AC output data is not currently available.

Solar Output Analysis for 91123

Sorry, it is not possible to complete our solar radiation analysis for 91123 at this time.

Historical solar radiation data for 91123 is not currently available.

Please check back later.

Weather Forecast for 91123 ^[5]

Tue Mar 11

53°F

Moderate Rain
Min: 49°F
Max: 55°F

Gentle Breeze: 12 mps E
Precip.: Chance of Rain
Humidity: 77%
Cloud cover: 100%

Wed Mar 12

58°F

Light Rain
Min: 52°F
Max: 58°F

Moderate breeze: 14 mps SSE
Precip.: Chance of Rain
Humidity: 82%
Cloud cover: 100%

Thu Mar 13

52°F

Heavy Intensity Rain
Min: 47°F
Max: 53°F

Fresh Breeze: 18 mps W
Precip.: Chance of Rain
Humidity: 56%
Cloud cover: 99%

Fri Mar 14

44°F

Light Rain
Min: 44°F
Max: 47°F

Light breeze: 7 mps ESE
Precip.: Chance of Rain
Humidity: 78%
Cloud cover: 100%

Sat Mar 15

64°F

Sky Is Clear
Min: 46°F
Max: 64°F

Light breeze: 7 mps SW
Precip.: n/a
Humidity: 26%
Cloud cover: 8%

Sun Mar 16

68°F

Overcast Clouds
Min: 52°F
Max: 68°F

Light breeze: 6 mps SW
Precip.: n/a
Humidity: 30%
Cloud cover: 100%

More about 91123

About 91123

The ZIP code 91123 is associated with the city of Pasadena in Los Angeles County in California.

91123 Solar Energy & Power

To learn more about solar energy and solar power in 91123, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.