Solar Energy & Solar Power Resources

Solar Power in 99218 (Spokane, WA)

Solar Energy in 99218

Sorry, historical solar radition values for 99218 are currently unavailable, please check back later.

Solar Panels in 99218

Solar panels in 99218 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 99218

The total length of the day in 99218 (Spokane, WA) today (June 21, 2026) will be 16 hours and 4 minutes. [More]

Solar Energy in 99218 (Spokane, WA)

Solar Energy Data for 99218

See the chart below to see how different types of solar panel installations compare in 99218.

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

Solar Energy Analysis for 99218

Sorry, it is not possible to complete our solar energy analysis for 99218 at this time.

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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 99218

Solar Radiation Data in 99218

See the chart below for monthly solar radiation levels in 99218.

Sorry, data is not currently available.

Solar Radiation Analysis for 99218

Sorry, it is not possible to complete our solar radiation analysis for 99218 at this time.

Historical solar radiation data for 99218 is not currently available.

Please check back later.

Solar Power Comparison: 99218 vs. the U.S.

Solar Power Levels in 99218

Sorry, solar radiation data for 99218 is not currently available.

Solar Power: 99218 vs. the U.S.

Below is a month-by-month comparison of how average 99218 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 99218

Sunrise / Sunset in 99218

Sunrise/Sunset for June 21, 2026 ^[2]
- Sunrise: 4:49 am
- Sunset: 8:53 pm
- Length of Day: 16:4

Best Months for Solar in 99218

Monthly data not currently available.

Solar Panel Installs in 99218

We do not have data on solar panel installations in ZIP Code 99218 at the current time.

Solar Power Output in 99218

The Power of Solar in 99218

Monthly AC solar system output averages for 99218. Month-by-month solar power, as ranked by AC output, in 99218. ^[2]

AC output data is not currently available.

Solar Output Analysis for 99218

Sorry, it is not possible to complete our solar radiation analysis for 99218 at this time.

Historical solar radiation data for 99218 is not currently available.

Please check back later.

Weather Forecast for 99218 ^[5]

Sun Jun 21

75°F

Sky Is Clear
Min: 53°F
Max: 85°F

Gentle Breeze: 8 mps SSW
Precip.: n/a
Humidity: 35%
Cloud cover: 6%

Mon Jun 22

84°F

Sky Is Clear
Min: 51°F
Max: 88°F

Light breeze: 7 mps NE
Precip.: n/a
Humidity: 17%
Cloud cover: 0%

Tue Jun 23

85°F

Overcast Clouds
Min: 60°F
Max: 86°F

Light breeze: 4 mps NE
Precip.: n/a
Humidity: 21%
Cloud cover: 100%

Wed Jun 24

83°F

Scattered Clouds
Min: 62°F
Max: 89°F

Gentle Breeze: 8 mps WSW
Precip.: n/a
Humidity: 21%
Cloud cover: 31%

Thu Jun 25

74°F

Overcast Clouds
Min: 65°F
Max: 81°F

Gentle Breeze: 11 mps SW
Precip.: n/a
Humidity: 25%
Cloud cover: 93%

Fri Jun 26

58°F

Moderate Rain
Min: 56°F
Max: 68°F

Moderate breeze: 15 mps SSW
Precip.: Chance of Rain
Humidity: 90%
Cloud cover: 100%

More about 99218

About 99218

The ZIP code 99218 is associated with the city of Spokane in Spokane County in Washington.

99218 Solar Energy & Power

To learn more about solar energy and solar power in 99218, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.