Solar Energy & Solar Power Resources

Solar Energy in Watertown, SD

Solar Energy in Watertown

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

Solar Panels in Watertown

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

Sunrise & Sunset in Watertown

The total length of the day in Watertown, SD today (September 10, 2026) will be 12 hours and 50 minutes. [More]

Solar Power in Watertown, SD

Solar Energy Data in Watertown, SD

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

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

Solar Energy Analysis for Watertown, SD

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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 Watertown

Solar Radiation Data in Watertown, SD

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

Sorry, data is not currently available.

Solar Radiation Analysis for Watertown, SD

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

Historical solar radiation data for Watertown is not currently available.

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

Solar Power Levels in Watertown

Sorry, solar radiation data for South Dakota is not currently available.

Solar Power: Watertown vs. the U.S.

Below is a month-by-month comparison of how average Watertown 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 South Dakota is not currently available.

Solar Data & Statistics for Watertown

Sunrise / Sunset in Watertown

Sunrise/Sunset for September 10, 2026 ^[2]
- Sunrise: 7:00 am
- Sunset: 7:50 pm
- Length of Day: 12:50

Best Months for Solar in Watertown

Monthly data not currently available.

Solar Panel Installs in Watertown

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

Solar Power Output in Watertown

The Power of Solar in Watertown, SD

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

AC output data is not currently available.

Solar Output Analysis for Watertown, SD

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

Historical solar radiation data for Watertown is not currently available.

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Cost of Utilities in Watertown

Watertown Electricity Costs

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Solar Power Poll: Watertown

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

Watertown Natural Gas Costs

Sorry, South Dakota residential natural gas prices are currently unavailable.

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Weather Forecast for Watertown, SD ^[5]

Thu Sep 10

79°F

Sky Is Clear
Min: 51°F
Max: 81°F

Fresh Breeze: 18 mps SSW
Precip.: n/a
Humidity: 44%
Cloud cover: 0%

Fri Sep 11

83°F

Overcast Clouds
Min: 62°F
Max: 93°F

Fresh Breeze: 23 mps SSW
Precip.: n/a
Humidity: 37%
Cloud cover: 94%

Sat Sep 12

66°F

Overcast Clouds
Min: 48°F
Max: 73°F

Moderate breeze: 17 mps N
Precip.: n/a
Humidity: 31%
Cloud cover: 100%

Sun Sep 13

57°F

Light Rain
Min: 51°F
Max: 66°F

Moderate breeze: 14 mps E
Precip.: Chance of Rain
Humidity: 43%
Cloud cover: 100%

Mon Sep 14

64°F

Light Rain
Min: 55°F
Max: 70°F

Moderate breeze: 17 mps ESE
Precip.: Chance of Rain
Humidity: 95%
Cloud cover: 100%

Tue Sep 15

67°F

Scattered Clouds
Min: 47°F
Max: 71°F

Gentle Breeze: 12 mps NNW
Precip.: n/a
Humidity: 30%
Cloud cover: 27%

More about Watertown

About Watertown

The city of Watertown, SD in Codington County has an approximate population of 21,482. ^[6]

Watertown, SD Solar Energy

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