Solar Energy & Solar Power Resources

Solar Power in 90239 (Downey, CA)

Solar Energy in 90239

Sorry, historical solar radition values for 90239 are currently unavailable, please check back later.

Solar Panels in 90239

Solar panels in 90239 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 90239

The total length of the day in 90239 (Downey, CA) today (December 11, 2025) will be 9 hours and 59 minutes. [More]

Solar Energy in 90239 (Downey, CA)

Solar Energy Data for 90239

See the chart below to see how different types of solar panel installations compare in 90239.

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

Solar Energy Analysis for 90239

Sorry, it is not possible to complete our solar energy analysis for 90239 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 90239

Solar Radiation Data in 90239

See the chart below for monthly solar radiation levels in 90239.

Sorry, data is not currently available.

Solar Radiation Analysis for 90239

Sorry, it is not possible to complete our solar radiation analysis for 90239 at this time.

Historical solar radiation data for 90239 is not currently available.

Please check back later.

Solar Power Comparison: 90239 vs. the U.S.

Solar Power Levels in 90239

Sorry, solar radiation data for 90239 is not currently available.

Solar Power: 90239 vs. the U.S.

Below is a month-by-month comparison of how average 90239 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 90239

Sunrise / Sunset in 90239

Sunrise/Sunset for December 11, 2025 ^[2]
- Sunrise: 6:46 am
- Sunset: 4:45 pm
- Length of Day: 9:59

Best Months for Solar in 90239

Monthly data not currently available.

Solar Panel Installs in 90239

We do not have data on solar panel installations in ZIP Code 90239 at the current time.

Solar Power Output in 90239

The Power of Solar in 90239

Monthly AC solar system output averages for 90239. Month-by-month solar power, as ranked by AC output, in 90239. ^[2]

AC output data is not currently available.

Solar Output Analysis for 90239

Sorry, it is not possible to complete our solar radiation analysis for 90239 at this time.

Historical solar radiation data for 90239 is not currently available.

Please check back later.

Weather Forecast for 90239 ^[5]

Thu Dec 11

73°F

Sky Is Clear
Min: 57°F
Max: 75°F

Light breeze: 7 mps SW
Precip.: n/a
Humidity: 29%
Cloud cover: 0%

Fri Dec 12

72°F

Sky Is Clear
Min: 62°F
Max: 77°F

Gentle Breeze: 8 mps WSW
Precip.: n/a
Humidity: 38%
Cloud cover: 0%

Sat Dec 13

71°F

Broken Clouds
Min: 63°F
Max: 75°F

Light breeze: 6 mps WSW
Precip.: n/a
Humidity: 40%
Cloud cover: 63%

Sun Dec 14

73°F

Sky Is Clear
Min: 65°F
Max: 77°F

Light breeze: 7 mps WSW
Precip.: n/a
Humidity: 32%
Cloud cover: 0%

Mon Dec 15

73°F

Sky Is Clear
Min: 66°F
Max: 79°F

Light breeze: 7 mps WSW
Precip.: n/a
Humidity: 18%
Cloud cover: 0%

Tue Dec 16

72°F

Scattered Clouds
Min: 67°F
Max: 78°F

Light breeze: 6 mps SW
Precip.: n/a
Humidity: 10%
Cloud cover: 43%

More about 90239

About 90239

The ZIP code 90239 is associated with the city of Downey in Los Angeles County in California.

90239 Solar Energy & Power

To learn more about solar energy and solar power in 90239, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.