Solar Energy & Solar Power Resources

Solar Energy in Walla Walla, WA

Solar Energy in Walla Walla

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

Solar Panels in Walla Walla

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

Sunrise & Sunset in Walla Walla

The total length of the day in Walla Walla, WA today (June 15, 2026) will be 15 hours and 49 minutes. [More]

Solar Power in Walla Walla, WA

Solar Energy Data in Walla Walla, WA

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

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

Solar Energy Analysis for Walla Walla, WA

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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 Walla Walla

Solar Radiation Data in Walla Walla, WA

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

Sorry, data is not currently available.

Solar Radiation Analysis for Walla Walla, WA

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

Historical solar radiation data for Walla Walla is not currently available.

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

Solar Power Levels in Walla Walla

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

Solar Power: Walla Walla vs. the U.S.

Below is a month-by-month comparison of how average Walla Walla 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 Washington is not currently available.

Solar Data & Statistics for Walla Walla

Sunrise / Sunset in Walla Walla

Sunrise/Sunset for June 15, 2026 ^[2]
- Sunrise: 4:59 am
- Sunset: 8:48 pm
- Length of Day: 15:49

Best Months for Solar in Walla Walla

Monthly data not currently available.

Solar Panel Installs in Walla Walla

We do not currently have data on solar panel installations in the city of Walla Walla, WA at this current time.

Solar Power Output in Walla Walla

The Power of Solar in Walla Walla, WA

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

AC output data is not currently available.

Solar Output Analysis for Walla Walla, WA

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

Historical solar radiation data for Walla Walla is not currently available.

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Cost of Utilities in Walla Walla

Walla Walla Electricity Costs

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Solar Power Poll: Walla Walla

Vote now: Given all of the data and analysis provided for Walla Walla, is solar power a good choice for residents of this city?

Walla Walla Natural Gas Costs

Sorry, Washington residential natural gas prices are currently unavailable.

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Weather Forecast for Walla Walla, WA ^[5]

Mon Jun 15

88°F

Overcast Clouds
Min: 56°F
Max: 94°F

Gentle Breeze: 11 mps SW
Precip.: n/a
Humidity: 14%
Cloud cover: 100%

Tue Jun 16

86°F

Scattered Clouds
Min: 60°F
Max: 91°F

Strong breeze: 26 mps WSW
Precip.: n/a
Humidity: 26%
Cloud cover: 48%

Wed Jun 17

80°F

Sky Is Clear
Min: 56°F
Max: 87°F

Gentle Breeze: 9 mps WSW
Precip.: n/a
Humidity: 19%
Cloud cover: 0%

Thu Jun 18

84°F

Scattered Clouds
Min: 60°F
Max: 91°F

Light breeze: 7 mps NW
Precip.: n/a
Humidity: 16%
Cloud cover: 31%

Fri Jun 19

91°F

Sky Is Clear
Min: 66°F
Max: 99°F

Gentle Breeze: 10 mps W
Precip.: n/a
Humidity: 14%
Cloud cover: 2%

Sat Jun 20

86°F

Overcast Clouds
Min: 68°F
Max: 89°F

Fresh Breeze: 23 mps WSW
Precip.: n/a
Humidity: 18%
Cloud cover: 99%

More about Walla Walla

About Walla Walla

The city of Walla Walla, WA in Walla Walla County has an approximate population of 31,731. ^[6]

Walla Walla, WA Solar Energy

To learn more about solar energy and solar power Walla Walla, WA, or for more solar-related resources for Walla Walla, visit the U.S. Energy Information Administration.