Solar Energy & Solar Power Resources

Solar Power in 99260 (Spokane, WA)

Solar Energy in 99260

Sorry, historical solar radition values for 99260 are currently unavailable, please check back later.

Solar Panels in 99260

Solar panels in 99260 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 99260

The total length of the day in 99260 (Spokane, WA) today (October 15, 2025) will be 10 hours and 55 minutes. [More]

Solar Energy in 99260 (Spokane, WA)

Solar Energy Data for 99260

See the chart below to see how different types of solar panel installations compare in 99260.

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

Solar Energy Analysis for 99260

Sorry, it is not possible to complete our solar energy analysis for 99260 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 99260

Solar Radiation Data in 99260

See the chart below for monthly solar radiation levels in 99260.

Sorry, data is not currently available.

Solar Radiation Analysis for 99260

Sorry, it is not possible to complete our solar radiation analysis for 99260 at this time.

Historical solar radiation data for 99260 is not currently available.

Please check back later.

Solar Power Comparison: 99260 vs. the U.S.

Solar Power Levels in 99260

Sorry, solar radiation data for 99260 is not currently available.

Solar Power: 99260 vs. the U.S.

Below is a month-by-month comparison of how average 99260 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 99260

Sunrise / Sunset in 99260

Sunrise/Sunset for October 15, 2025 ^[2]
- Sunrise: 7:07 am
- Sunset: 6:02 pm
- Length of Day: 10:55

Best Months for Solar in 99260

Monthly data not currently available.

Solar Panel Installs in 99260

We do not have data on solar panel installations in ZIP Code 99260 at the current time.

Solar Power Output in 99260

The Power of Solar in 99260

Monthly AC solar system output averages for 99260. Month-by-month solar power, as ranked by AC output, in 99260. ^[2]

AC output data is not currently available.

Solar Output Analysis for 99260

Sorry, it is not possible to complete our solar radiation analysis for 99260 at this time.

Historical solar radiation data for 99260 is not currently available.

Please check back later.

Weather Forecast for 99260 ^[5]

Wed Oct 15

51°F

Sky Is Clear
Min: 33°F
Max: 56°F

Calm: 3 mps N
Precip.: n/a
Humidity: 59%
Cloud cover: 0%

Thu Oct 16

53°F

Sky Is Clear
Min: 32°F
Max: 59°F

Light breeze: 7 mps SW
Precip.: n/a
Humidity: 36%
Cloud cover: 0%

Fri Oct 17

55°F

Overcast Clouds
Min: 44°F
Max: 58°F

Moderate breeze: 12 mps W
Precip.: n/a
Humidity: 50%
Cloud cover: 100%

Sat Oct 18

53°F

Sky Is Clear
Min: 41°F
Max: 58°F

Light breeze: 5 mps W
Precip.: n/a
Humidity: 38%
Cloud cover: 2%

Sun Oct 19

46°F

Light Rain
Min: 46°F
Max: 51°F

Gentle Breeze: 9 mps SSW
Precip.: Chance of Rain
Humidity: 74%
Cloud cover: 100%

Mon Oct 20

50°F

Scattered Clouds
Min: 42°F
Max: 54°F

Moderate breeze: 13 mps WSW
Precip.: n/a
Humidity: 63%
Cloud cover: 32%

More about 99260

About 99260

The ZIP code 99260 is associated with the city of Spokane in Spokane County in Washington.

99260 Solar Energy & Power

To learn more about solar energy and solar power in 99260, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.