Solar Energy & Solar Power Resources

Solar Power in 99109 (Chewelah, WA)

Solar Energy in 99109

Sorry, historical solar radition values for 99109 are currently unavailable, please check back later.

Solar Panels in 99109

Solar panels in 99109 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 99109

The total length of the day in 99109 (Chewelah, WA) today (September 19, 2026) will be 12 hours and 24 minutes. [More]

Solar Energy in 99109 (Chewelah, WA)

Solar Energy Data for 99109

See the chart below to see how different types of solar panel installations compare in 99109.

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

Solar Energy Analysis for 99109

Sorry, it is not possible to complete our solar energy analysis for 99109 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 99109

Solar Radiation Data in 99109

See the chart below for monthly solar radiation levels in 99109.

Sorry, data is not currently available.

Solar Radiation Analysis for 99109

Sorry, it is not possible to complete our solar radiation analysis for 99109 at this time.

Historical solar radiation data for 99109 is not currently available.

Please check back later.

Solar Power Comparison: 99109 vs. the U.S.

Solar Power Levels in 99109

Sorry, solar radiation data for 99109 is not currently available.

Solar Power: 99109 vs. the U.S.

Below is a month-by-month comparison of how average 99109 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 99109

Sunrise / Sunset in 99109

Sunrise/Sunset for September 19, 2026 ^[2]
- Sunrise: 6:32 am
- Sunset: 6:56 pm
- Length of Day: 12:24

Best Months for Solar in 99109

Monthly data not currently available.

Solar Panel Installs in 99109

We do not have data on solar panel installations in ZIP Code 99109 at the current time.

Solar Power Output in 99109

The Power of Solar in 99109

Monthly AC solar system output averages for 99109. Month-by-month solar power, as ranked by AC output, in 99109. ^[2]

AC output data is not currently available.

Solar Output Analysis for 99109

Sorry, it is not possible to complete our solar radiation analysis for 99109 at this time.

Historical solar radiation data for 99109 is not currently available.

Please check back later.

Weather Forecast for 99109 ^[5]

Sat Sep 19

73°F

Overcast Clouds
Min: 50°F
Max: 82°F

Calm: 3 mps SE
Precip.: n/a
Humidity: 40%
Cloud cover: 97%

Sun Sep 20

76°F

Sky Is Clear
Min: 51°F
Max: 83°F

Calm: 3 mps SE
Precip.: n/a
Humidity: 35%
Cloud cover: 0%

Mon Sep 21

79°F

Sky Is Clear
Min: 54°F
Max: 83°F

Light breeze: 5 mps SE
Precip.: n/a
Humidity: 32%
Cloud cover: 0%

Tue Sep 22

75°F

Few Clouds
Min: 58°F
Max: 81°F

Light breeze: 6 mps S
Precip.: n/a
Humidity: 40%
Cloud cover: 17%

Wed Sep 23

66°F

Scattered Clouds
Min: 54°F
Max: 73°F

Light breeze: 7 mps S
Precip.: n/a
Humidity: 44%
Cloud cover: 34%

Thu Sep 24

67°F

Scattered Clouds
Min: 51°F
Max: 72°F

Light breeze: 4 mps SSE
Precip.: n/a
Humidity: 37%
Cloud cover: 49%

More about 99109

About 99109

The ZIP code 99109 is associated with the city of Chewelah in Stevens County in Washington.

99109 Solar Energy & Power

To learn more about solar energy and solar power in 99109, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.