Solar Energy & Solar Power Resources

Solar Energy in Sumas, WA

Solar Energy in Sumas

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

Solar Panels in Sumas

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

Sunrise & Sunset in Sumas

The total length of the day in Sumas, WA today (July 28, 2026) will be 15 hours and 20 minutes. [More]

Solar Power in Sumas, WA

Solar Energy Data in Sumas, WA

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

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

Solar Energy Analysis for Sumas, WA

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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 Sumas

Solar Radiation Data in Sumas, WA

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

Sorry, data is not currently available.

Solar Radiation Analysis for Sumas, WA

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

Historical solar radiation data for Sumas is not currently available.

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

Solar Power Levels in Sumas

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

Solar Power: Sumas vs. the U.S.

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

Sunrise / Sunset in Sumas

Sunrise/Sunset for July 28, 2026 ^[2]
- Sunrise: 5:35 am
- Sunset: 8:55 pm
- Length of Day: 15:20

Best Months for Solar in Sumas

Monthly data not currently available.

Solar Panel Installs in Sumas

We do not currently have data on solar panel installations in the city of Sumas, WA at this current time.

Solar Power Output in Sumas

The Power of Solar in Sumas, WA

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

AC output data is not currently available.

Solar Output Analysis for Sumas, WA

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

Historical solar radiation data for Sumas is not currently available.

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Cost of Utilities in Sumas

Sumas Electricity Costs

Sorry, Sumas residential electricity prices are currently unavailable.

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Solar Power Poll: Sumas

Vote now: Given all of the data and analysis provided for Sumas, is solar power a good choice for residents of this city?

Sumas Natural Gas Costs

Sorry, Washington residential natural gas prices are currently unavailable.

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Weather Forecast for Sumas, WA ^[5]

Tue Jul 28

69°F

Light Rain
Min: 61°F
Max: 69°F

Gentle Breeze: 11 mps WSW
Precip.: Chance of Rain
Humidity: 72%
Cloud cover: 97%

Wed Jul 29

74°F

Broken Clouds
Min: 57°F
Max: 75°F

Light breeze: 7 mps W
Precip.: n/a
Humidity: 44%
Cloud cover: 73%

Thu Jul 30

74°F

Sky Is Clear
Min: 51°F
Max: 77°F

Light breeze: 6 mps W
Precip.: n/a
Humidity: 41%
Cloud cover: 0%

Fri Jul 31

78°F

Sky Is Clear
Min: 53°F
Max: 80°F

Light breeze: 6 mps W
Precip.: n/a
Humidity: 36%
Cloud cover: 7%

Sat Aug 1

58°F

Moderate Rain
Min: 52°F
Max: 64°F

Light breeze: 7 mps S
Precip.: Chance of Rain
Humidity: 97%
Cloud cover: 100%

Sun Aug 2

68°F

Light Rain
Min: 52°F
Max: 70°F

Light breeze: 6 mps W
Precip.: Chance of Rain
Humidity: 49%
Cloud cover: 53%

More about Sumas

About Sumas

The city of Sumas, WA in Whatcom County has an approximate population of 1,307. ^[6]

Sumas, WA Solar Energy

To learn more about solar energy and solar power Sumas, WA, or for more solar-related resources for Sumas, visit the U.S. Energy Information Administration.