Solar Energy & Solar Power Resources

Solar Power in 91310 (Castaic, CA)

Solar Energy in 91310

Sorry, historical solar radition values for 91310 are currently unavailable, please check back later.

Solar Panels in 91310

Solar panels in 91310 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 91310

The total length of the day in 91310 (Castaic, CA) today (September 18, 2025) will be 12 hours and 19 minutes. [More]

Solar Energy in 91310 (Castaic, CA)

Solar Energy Data for 91310

See the chart below to see how different types of solar panel installations compare in 91310.

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

Solar Energy Analysis for 91310

Sorry, it is not possible to complete our solar energy analysis for 91310 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 91310

Solar Radiation Data in 91310

See the chart below for monthly solar radiation levels in 91310.

Sorry, data is not currently available.

Solar Radiation Analysis for 91310

Sorry, it is not possible to complete our solar radiation analysis for 91310 at this time.

Historical solar radiation data for 91310 is not currently available.

Please check back later.

Solar Power Comparison: 91310 vs. the U.S.

Solar Power Levels in 91310

Sorry, solar radiation data for 91310 is not currently available.

Solar Power: 91310 vs. the U.S.

Below is a month-by-month comparison of how average 91310 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 91310

Sunrise / Sunset in 91310

Sunrise/Sunset for September 18, 2025 ^[2]
- Sunrise: 6:38 am
- Sunset: 6:57 pm
- Length of Day: 12:19

Best Months for Solar in 91310

Monthly data not currently available.

Solar Panel Installs in 91310

We do not have data on solar panel installations in ZIP Code 91310 at the current time.

Solar Power Output in 91310

The Power of Solar in 91310

Monthly AC solar system output averages for 91310. Month-by-month solar power, as ranked by AC output, in 91310. ^[2]

AC output data is not currently available.

Solar Output Analysis for 91310

Sorry, it is not possible to complete our solar radiation analysis for 91310 at this time.

Historical solar radiation data for 91310 is not currently available.

Please check back later.

Weather Forecast for 91310 ^[5]

Thu Sep 18

75°F

Moderate Rain
Min: 65°F
Max: 78°F

Light breeze: 8 mps NNE
Precip.: Chance of Rain
Humidity: 75%
Cloud cover: 100%

Fri Sep 19

80°F

Light Rain
Min: 68°F
Max: 84°F

Gentle Breeze: 11 mps SSW
Precip.: Chance of Rain
Humidity: 54%
Cloud cover: 43%

Sat Sep 20

86°F

Sky Is Clear
Min: 67°F
Max: 89°F

Moderate breeze: 14 mps SW
Precip.: n/a
Humidity: 34%
Cloud cover: 0%

Sun Sep 21

86°F

Sky Is Clear
Min: 69°F
Max: 91°F

Moderate breeze: 13 mps SSW
Precip.: n/a
Humidity: 27%
Cloud cover: 0%

Mon Sep 22

87°F

Sky Is Clear
Min: 70°F
Max: 93°F

Gentle Breeze: 11 mps SW
Precip.: n/a
Humidity: 25%
Cloud cover: 0%

Tue Sep 23

80°F

Light Rain
Min: 65°F
Max: 83°F

Gentle Breeze: 12 mps SW
Precip.: Chance of Rain
Humidity: 46%
Cloud cover: 77%

More about 91310

About 91310

The ZIP code 91310 is associated with the city of Castaic in Los Angeles County in California.

91310 Solar Energy & Power

To learn more about solar energy and solar power in 91310, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.