Solar Energy & Solar Power Resources

Solar Power in 99209 (Spokane, WA)

Solar Energy in 99209

Sorry, historical solar radition values for 99209 are currently unavailable, please check back later.

Solar Panels in 99209

Solar panels in 99209 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 99209

The total length of the day in 99209 (Spokane, WA) today (September 10, 2026) will be 12 hours and 54 minutes. [More]

Solar Energy in 99209 (Spokane, WA)

Solar Energy Data for 99209

See the chart below to see how different types of solar panel installations compare in 99209.

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

Solar Energy Analysis for 99209

Sorry, it is not possible to complete our solar energy analysis for 99209 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 99209

Solar Radiation Data in 99209

See the chart below for monthly solar radiation levels in 99209.

Sorry, data is not currently available.

Solar Radiation Analysis for 99209

Sorry, it is not possible to complete our solar radiation analysis for 99209 at this time.

Historical solar radiation data for 99209 is not currently available.

Please check back later.

Solar Power Comparison: 99209 vs. the U.S.

Solar Power Levels in 99209

Sorry, solar radiation data for 99209 is not currently available.

Solar Power: 99209 vs. the U.S.

Below is a month-by-month comparison of how average 99209 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 99209

Sunrise / Sunset in 99209

Sunrise/Sunset for September 10, 2026 ^[2]
- Sunrise: 6:19 am
- Sunset: 7:13 pm
- Length of Day: 12:54

Best Months for Solar in 99209

Monthly data not currently available.

Solar Panel Installs in 99209

We do not have data on solar panel installations in ZIP Code 99209 at the current time.

Solar Power Output in 99209

The Power of Solar in 99209

Monthly AC solar system output averages for 99209. Month-by-month solar power, as ranked by AC output, in 99209. ^[2]

AC output data is not currently available.

Solar Output Analysis for 99209

Sorry, it is not possible to complete our solar radiation analysis for 99209 at this time.

Historical solar radiation data for 99209 is not currently available.

Please check back later.

Weather Forecast for 99209 ^[5]

Thu Sep 10

76°F

Overcast Clouds
Min: 56°F
Max: 82°F

Gentle Breeze: 12 mps WSW
Precip.: n/a
Humidity: 31%
Cloud cover: 100%

Fri Sep 11

68°F

Overcast Clouds
Min: 49°F
Max: 75°F

Light breeze: 6 mps NE
Precip.: n/a
Humidity: 33%
Cloud cover: 100%

Sat Sep 12

65°F

Overcast Clouds
Min: 56°F
Max: 70°F

Gentle Breeze: 8 mps NNE
Precip.: n/a
Humidity: 39%
Cloud cover: 100%

Sun Sep 13

51°F

Moderate Rain
Min: 51°F
Max: 60°F

Gentle Breeze: 8 mps N
Precip.: Chance of Rain
Humidity: 84%
Cloud cover: 100%

Mon Sep 14

60°F

Scattered Clouds
Min: 50°F
Max: 66°F

Gentle Breeze: 8 mps SSW
Precip.: n/a
Humidity: 51%
Cloud cover: 40%

Tue Sep 15

60°F

Overcast Clouds
Min: 52°F
Max: 67°F

Light breeze: 6 mps NE
Precip.: n/a
Humidity: 49%
Cloud cover: 89%

More about 99209

About 99209

The ZIP code 99209 is associated with the city of Spokane in Spokane County in Washington.

99209 Solar Energy & Power

To learn more about solar energy and solar power in 99209, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.