Solar Energy & Solar Power Resources

Solar Power in 99402 (Asotin, WA)

Solar Energy in 99402

Sorry, historical solar radition values for 99402 are currently unavailable, please check back later.

Solar Panels in 99402

Solar panels in 99402 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 99402

The total length of the day in 99402 (Asotin, WA) today (April 09, 2026) will be 13 hours and 18 minutes. [More]

Solar Energy in 99402 (Asotin, WA)

Solar Energy Data for 99402

See the chart below to see how different types of solar panel installations compare in 99402.

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

Solar Energy Analysis for 99402

Sorry, it is not possible to complete our solar energy analysis for 99402 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 99402

Solar Radiation Data in 99402

See the chart below for monthly solar radiation levels in 99402.

Sorry, data is not currently available.

Solar Radiation Analysis for 99402

Sorry, it is not possible to complete our solar radiation analysis for 99402 at this time.

Historical solar radiation data for 99402 is not currently available.

Please check back later.

Solar Power Comparison: 99402 vs. the U.S.

Solar Power Levels in 99402

Sorry, solar radiation data for 99402 is not currently available.

Solar Power: 99402 vs. the U.S.

Below is a month-by-month comparison of how average 99402 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 99402

Sunrise / Sunset in 99402

Sunrise/Sunset for April 09, 2026 ^[2]
- Sunrise: 6:10 am
- Sunset: 7:28 pm
- Length of Day: 13:18

Best Months for Solar in 99402

Monthly data not currently available.

Solar Panel Installs in 99402

We do not have data on solar panel installations in ZIP Code 99402 at the current time.

Solar Power Output in 99402

The Power of Solar in 99402

Monthly AC solar system output averages for 99402. Month-by-month solar power, as ranked by AC output, in 99402. ^[2]

AC output data is not currently available.

Solar Output Analysis for 99402

Sorry, it is not possible to complete our solar radiation analysis for 99402 at this time.

Historical solar radiation data for 99402 is not currently available.

Please check back later.

Weather Forecast for 99402 ^[5]

Thu Apr 9

58°F

Sky Is Clear
Min: 33°F
Max: 61°F

Light breeze: 6 mps N
Precip.: n/a
Humidity: 41%
Cloud cover: 3%

Fri Apr 10

58°F

Overcast Clouds
Min: 43°F
Max: 63°F

Gentle Breeze: 8 mps NW
Precip.: n/a
Humidity: 45%
Cloud cover: 100%

Sat Apr 11

56°F

Moderate Rain
Min: 47°F
Max: 60°F

Light breeze: 8 mps SSE
Precip.: Chance of Rain
Humidity: 64%
Cloud cover: 60%

Sun Apr 12

53°F

Moderate Rain
Min: 42°F
Max: 56°F

Moderate breeze: 14 mps SSW
Precip.: Chance of Rain
Humidity: 69%
Cloud cover: 79%

Mon Apr 13

41°F

Moderate Rain
Min: 39°F
Max: 48°F

Gentle Breeze: 10 mps S
Precip.: Chance of Rain
Humidity: 90%
Cloud cover: 100%

Tue Apr 14

46°F

Overcast Clouds
Min: 36°F
Max: 49°F

Moderate breeze: 15 mps SW
Precip.: n/a
Humidity: 53%
Cloud cover: 89%

More about 99402

About 99402

The ZIP code 99402 is associated with the city of Asotin in Asotin County in Washington.

99402 Solar Energy & Power

To learn more about solar energy and solar power in 99402, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.