Solar Energy & Solar Power Resources

Solar Power in 99201 (Spokane, WA)

Solar Energy in 99201

Sorry, historical solar radition values for 99201 are currently unavailable, please check back later.

Solar Panels in 99201

Solar panels in 99201 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 99201

The total length of the day in 99201 (Spokane, WA) today (July 16, 2026) will be 15 hours and 37 minutes. [More]

Solar Energy in 99201 (Spokane, WA)

Solar Energy Data for 99201

See the chart below to see how different types of solar panel installations compare in 99201.

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

Solar Energy Analysis for 99201

Sorry, it is not possible to complete our solar energy analysis for 99201 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 99201

Solar Radiation Data in 99201

See the chart below for monthly solar radiation levels in 99201.

Sorry, data is not currently available.

Solar Radiation Analysis for 99201

Sorry, it is not possible to complete our solar radiation analysis for 99201 at this time.

Historical solar radiation data for 99201 is not currently available.

Please check back later.

Solar Power Comparison: 99201 vs. the U.S.

Solar Power Levels in 99201

Sorry, solar radiation data for 99201 is not currently available.

Solar Power: 99201 vs. the U.S.

Below is a month-by-month comparison of how average 99201 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 99201

Sunrise / Sunset in 99201

Sunrise/Sunset for July 16, 2026 ^[2]
- Sunrise: 5:07 am
- Sunset: 8:44 pm
- Length of Day: 15:37

Best Months for Solar in 99201

Monthly data not currently available.

Solar Panel Installs in 99201

We do not have data on solar panel installations in ZIP Code 99201 at the current time.

Solar Power Output in 99201

The Power of Solar in 99201

Monthly AC solar system output averages for 99201. Month-by-month solar power, as ranked by AC output, in 99201. ^[2]

AC output data is not currently available.

Solar Output Analysis for 99201

Sorry, it is not possible to complete our solar radiation analysis for 99201 at this time.

Historical solar radiation data for 99201 is not currently available.

Please check back later.

Weather Forecast for 99201 ^[5]

Thu Jul 16

91°F

Sky Is Clear
Min: 68°F
Max: 101°F

Gentle Breeze: 10 mps WSW
Precip.: n/a
Humidity: 18%
Cloud cover: 9%

Fri Jul 17

83°F

Sky Is Clear
Min: 64°F
Max: 94°F

Gentle Breeze: 8 mps S
Precip.: n/a
Humidity: 20%
Cloud cover: 0%

Sat Jul 18

87°F

Sky Is Clear
Min: 68°F
Max: 93°F

Gentle Breeze: 11 mps WSW
Precip.: n/a
Humidity: 17%
Cloud cover: 0%

Sun Jul 19

84°F

Sky Is Clear
Min: 66°F
Max: 92°F

Gentle Breeze: 9 mps WSW
Precip.: n/a
Humidity: 22%
Cloud cover: 0%

Mon Jul 20

87°F

Overcast Clouds
Min: 68°F
Max: 95°F

Light breeze: 6 mps SW
Precip.: n/a
Humidity: 18%
Cloud cover: 93%

Tue Jul 21

93°F

Broken Clouds
Min: 72°F
Max: 100°F

Moderate breeze: 13 mps NNW
Precip.: n/a
Humidity: 16%
Cloud cover: 82%

More about 99201

About 99201

The ZIP code 99201 is associated with the city of Spokane in Spokane County in Washington.

99201 Solar Energy & Power

To learn more about solar energy and solar power in 99201, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.