Solar Energy & Solar Power Resources

Solar Power in 91199 (Pasadena, CA)

Solar Energy in 91199

Sorry, historical solar radition values for 91199 are currently unavailable, please check back later.

Solar Panels in 91199

Solar panels in 91199 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 91199

The total length of the day in 91199 (Pasadena, CA) today (September 21, 2026) will be 12 hours and 14 minutes. [More]

Solar Energy in 91199 (Pasadena, CA)

Solar Energy Data for 91199

See the chart below to see how different types of solar panel installations compare in 91199.

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

Solar Energy Analysis for 91199

Sorry, it is not possible to complete our solar energy analysis for 91199 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 91199

Solar Radiation Data in 91199

See the chart below for monthly solar radiation levels in 91199.

Sorry, data is not currently available.

Solar Radiation Analysis for 91199

Sorry, it is not possible to complete our solar radiation analysis for 91199 at this time.

Historical solar radiation data for 91199 is not currently available.

Please check back later.

Solar Power Comparison: 91199 vs. the U.S.

Solar Power Levels in 91199

Sorry, solar radiation data for 91199 is not currently available.

Solar Power: 91199 vs. the U.S.

Below is a month-by-month comparison of how average 91199 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 91199

Sunrise / Sunset in 91199

Sunrise/Sunset for September 21, 2026 ^[2]
- Sunrise: 6:38 am
- Sunset: 6:52 pm
- Length of Day: 12:14

Best Months for Solar in 91199

Monthly data not currently available.

Solar Panel Installs in 91199

We do not have data on solar panel installations in ZIP Code 91199 at the current time.

Solar Power Output in 91199

The Power of Solar in 91199

Monthly AC solar system output averages for 91199. Month-by-month solar power, as ranked by AC output, in 91199. ^[2]

AC output data is not currently available.

Solar Output Analysis for 91199

Sorry, it is not possible to complete our solar radiation analysis for 91199 at this time.

Historical solar radiation data for 91199 is not currently available.

Please check back later.

Weather Forecast for 91199 ^[5]

Mon Sep 21

74°F

Scattered Clouds
Min: 65°F
Max: 76°F

Light breeze: 6 mps SSW
Precip.: n/a
Humidity: 62%
Cloud cover: 47%

Tue Sep 22

79°F

Sky Is Clear
Min: 62°F
Max: 80°F

Light breeze: 6 mps SSW
Precip.: n/a
Humidity: 50%
Cloud cover: 0%

Wed Sep 23

86°F

Sky Is Clear
Min: 65°F
Max: 91°F

Light breeze: 5 mps SSW
Precip.: n/a
Humidity: 27%
Cloud cover: 0%

Thu Sep 24

82°F

Sky Is Clear
Min: 69°F
Max: 88°F

Light breeze: 5 mps SSW
Precip.: n/a
Humidity: 38%
Cloud cover: 0%

Fri Sep 25

82°F

Sky Is Clear
Min: 68°F
Max: 88°F

Light breeze: 5 mps SW
Precip.: n/a
Humidity: 33%
Cloud cover: 1%

Sat Sep 26

84°F

Overcast Clouds
Min: 70°F
Max: 87°F

Light breeze: 7 mps SSW
Precip.: n/a
Humidity: 19%
Cloud cover: 95%

More about 91199

About 91199

The ZIP code 91199 is associated with the city of Pasadena in Los Angeles County in California.

91199 Solar Energy & Power

To learn more about solar energy and solar power in 91199, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.