Solar Energy & Solar Power Resources

Solar Power in 91101 (Pasadena, CA)

Solar Energy in 91101

Sorry, historical solar radition values for 91101 are currently unavailable, please check back later.

Solar Panels in 91101

Solar panels in 91101 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 91101

The total length of the day in 91101 (Pasadena, CA) today (August 05, 2026) will be 13 hours and 46 minutes. [More]

Solar Energy in 91101 (Pasadena, CA)

Solar Energy Data for 91101

See the chart below to see how different types of solar panel installations compare in 91101.

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

Solar Energy Analysis for 91101

Sorry, it is not possible to complete our solar energy analysis for 91101 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 91101

Solar Radiation Data in 91101

See the chart below for monthly solar radiation levels in 91101.

Sorry, data is not currently available.

Solar Radiation Analysis for 91101

Sorry, it is not possible to complete our solar radiation analysis for 91101 at this time.

Historical solar radiation data for 91101 is not currently available.

Please check back later.

Solar Power Comparison: 91101 vs. the U.S.

Solar Power Levels in 91101

Sorry, solar radiation data for 91101 is not currently available.

Solar Power: 91101 vs. the U.S.

Below is a month-by-month comparison of how average 91101 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 91101

Sunrise / Sunset in 91101

Sunrise/Sunset for August 05, 2026 ^[2]
- Sunrise: 6:05 am
- Sunset: 7:51 pm
- Length of Day: 13:46

Best Months for Solar in 91101

Monthly data not currently available.

Solar Panel Installs in 91101

We do not have data on solar panel installations in ZIP Code 91101 at the current time.

Solar Power Output in 91101

The Power of Solar in 91101

Monthly AC solar system output averages for 91101. Month-by-month solar power, as ranked by AC output, in 91101. ^[2]

AC output data is not currently available.

Solar Output Analysis for 91101

Sorry, it is not possible to complete our solar radiation analysis for 91101 at this time.

Historical solar radiation data for 91101 is not currently available.

Please check back later.

Weather Forecast for 91101 ^[5]

Wed Aug 5

86°F

Sky Is Clear
Min: 68°F
Max: 91°F

Gentle Breeze: 9 mps SW
Precip.: n/a
Humidity: 34%
Cloud cover: 0%

Thu Aug 6

89°F

Sky Is Clear
Min: 66°F
Max: 93°F

Gentle Breeze: 11 mps SSW
Precip.: n/a
Humidity: 31%
Cloud cover: 6%

Fri Aug 7

92°F

Sky Is Clear
Min: 74°F
Max: 95°F

Gentle Breeze: 10 mps SSW
Precip.: n/a
Humidity: 24%
Cloud cover: 7%

Sat Aug 8

91°F

Sky Is Clear
Min: 75°F
Max: 97°F

Gentle Breeze: 9 mps SSW
Precip.: n/a
Humidity: 28%
Cloud cover: 5%

Sun Aug 9

93°F

Scattered Clouds
Min: 79°F
Max: 98°F

Gentle Breeze: 9 mps SSW
Precip.: n/a
Humidity: 28%
Cloud cover: 31%

Mon Aug 10

90°F

Sky Is Clear
Min: 76°F
Max: 94°F

Gentle Breeze: 9 mps S
Precip.: n/a
Humidity: 34%
Cloud cover: 0%

More about 91101

About 91101

The ZIP code 91101 is associated with the city of Pasadena in Los Angeles County in California.

91101 Solar Energy & Power

To learn more about solar energy and solar power in 91101, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.