Solar Energy & Solar Power Resources

Solar Power in 91117 (Pasadena, CA)

Solar Energy in 91117

Sorry, historical solar radition values for 91117 are currently unavailable, please check back later.

Solar Panels in 91117

Solar panels in 91117 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 91117

The total length of the day in 91117 (Pasadena, CA) today (August 06, 2026) will be 13 hours and 44 minutes. [More]

Solar Energy in 91117 (Pasadena, CA)

Solar Energy Data for 91117

See the chart below to see how different types of solar panel installations compare in 91117.

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

Solar Energy Analysis for 91117

Sorry, it is not possible to complete our solar energy analysis for 91117 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 91117

Solar Radiation Data in 91117

See the chart below for monthly solar radiation levels in 91117.

Sorry, data is not currently available.

Solar Radiation Analysis for 91117

Sorry, it is not possible to complete our solar radiation analysis for 91117 at this time.

Historical solar radiation data for 91117 is not currently available.

Please check back later.

Solar Power Comparison: 91117 vs. the U.S.

Solar Power Levels in 91117

Sorry, solar radiation data for 91117 is not currently available.

Solar Power: 91117 vs. the U.S.

Below is a month-by-month comparison of how average 91117 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 91117

Sunrise / Sunset in 91117

Sunrise/Sunset for August 06, 2026 ^[2]
- Sunrise: 6:06 am
- Sunset: 7:50 pm
- Length of Day: 13:44

Best Months for Solar in 91117

Monthly data not currently available.

Solar Panel Installs in 91117

We do not have data on solar panel installations in ZIP Code 91117 at the current time.

Solar Power Output in 91117

The Power of Solar in 91117

Monthly AC solar system output averages for 91117. Month-by-month solar power, as ranked by AC output, in 91117. ^[2]

AC output data is not currently available.

Solar Output Analysis for 91117

Sorry, it is not possible to complete our solar radiation analysis for 91117 at this time.

Historical solar radiation data for 91117 is not currently available.

Please check back later.

Weather Forecast for 91117 ^[5]

Thu Aug 6

91°F

Sky Is Clear
Min: 67°F
Max: 94°F

Gentle Breeze: 10 mps SSW
Precip.: n/a
Humidity: 28%
Cloud cover: 0%

Fri Aug 7

92°F

Scattered Clouds
Min: 66°F
Max: 95°F

Gentle Breeze: 10 mps SSW
Precip.: n/a
Humidity: 25%
Cloud cover: 31%

Sat Aug 8

95°F

Sky Is Clear
Min: 75°F
Max: 97°F

Gentle Breeze: 9 mps SW
Precip.: n/a
Humidity: 22%
Cloud cover: 0%

Sun Aug 9

93°F

Sky Is Clear
Min: 77°F
Max: 96°F

Gentle Breeze: 8 mps SSW
Precip.: n/a
Humidity: 27%
Cloud cover: 9%

Mon Aug 10

91°F

Sky Is Clear
Min: 77°F
Max: 97°F

Gentle Breeze: 8 mps SSW
Precip.: n/a
Humidity: 27%
Cloud cover: 0%

Tue Aug 11

91°F

Overcast Clouds
Min: 76°F
Max: 93°F

Gentle Breeze: 11 mps S
Precip.: n/a
Humidity: 27%
Cloud cover: 97%

More about 91117

About 91117

The ZIP code 91117 is associated with the city of Pasadena in Los Angeles County in California.

91117 Solar Energy & Power

To learn more about solar energy and solar power in 91117, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.