Solar Energy & Solar Power Resources

Solar Power in 94559 (Napa, CA)

Solar Energy in 94559

Sorry, historical solar radition values for 94559 are currently unavailable, please check back later.

Solar Panels in 94559

Solar panels in 94559 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 94559

The total length of the day in 94559 (Napa, CA) today (June 26, 2026) will be 14 hours and 53 minutes. [More]

Solar Energy in 94559 (Napa, CA)

Solar Energy Data for 94559

See the chart below to see how different types of solar panel installations compare in 94559.

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

Solar Energy Analysis for 94559

Sorry, it is not possible to complete our solar energy analysis for 94559 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 94559

Solar Radiation Data in 94559

See the chart below for monthly solar radiation levels in 94559.

Sorry, data is not currently available.

Solar Radiation Analysis for 94559

Sorry, it is not possible to complete our solar radiation analysis for 94559 at this time.

Historical solar radiation data for 94559 is not currently available.

Please check back later.

Solar Power Comparison: 94559 vs. the U.S.

Solar Power Levels in 94559

Sorry, solar radiation data for 94559 is not currently available.

Solar Power: 94559 vs. the U.S.

Below is a month-by-month comparison of how average 94559 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 94559

Sunrise / Sunset in 94559

Sunrise/Sunset for June 26, 2026 ^[2]
- Sunrise: 5:45 am
- Sunset: 8:38 pm
- Length of Day: 14:53

Best Months for Solar in 94559

Monthly data not currently available.

Solar Panel Installs in 94559

We do not have data on solar panel installations in ZIP Code 94559 at the current time.

Solar Power Output in 94559

The Power of Solar in 94559

Monthly AC solar system output averages for 94559. Month-by-month solar power, as ranked by AC output, in 94559. ^[2]

AC output data is not currently available.

Solar Output Analysis for 94559

Sorry, it is not possible to complete our solar radiation analysis for 94559 at this time.

Historical solar radiation data for 94559 is not currently available.

Please check back later.

Weather Forecast for 94559 ^[5]

Fri Jun 26

75°F

Sky Is Clear
Min: 58°F
Max: 76°F

Moderate breeze: 16 mps WSW
Precip.: n/a
Humidity: 54%
Cloud cover: 1%

Sat Jun 27

67°F

Sky Is Clear
Min: 54°F
Max: 71°F

Moderate breeze: 14 mps SW
Precip.: n/a
Humidity: 30%
Cloud cover: 0%

Sun Jun 28

79°F

Sky Is Clear
Min: 47°F
Max: 79°F

Gentle Breeze: 12 mps WSW
Precip.: n/a
Humidity: 25%
Cloud cover: 0%

Mon Jun 29

83°F

Few Clouds
Min: 51°F
Max: 83°F

Gentle Breeze: 8 mps SSW
Precip.: n/a
Humidity: 25%
Cloud cover: 14%

Tue Jun 30

83°F

Sky Is Clear
Min: 53°F
Max: 83°F

Gentle Breeze: 8 mps SSW
Precip.: n/a
Humidity: 28%
Cloud cover: 0%

Wed Jul 1

75°F

Sky Is Clear
Min: 51°F
Max: 75°F

Light breeze: 7 mps SSW
Precip.: n/a
Humidity: 41%
Cloud cover: 4%

More about 94559

About 94559

The ZIP code 94559 is associated with the city of Napa in Napa County in California.

94559 Solar Energy & Power

To learn more about solar energy and solar power in 94559, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.