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Solar Power in 51439 (Charter Oak, IA)

Solar Energy in 51439

The month of July has the highest historical solar radition values in 51439 with an average of 6.45 kWh/m2/day. [More]

Solar Panels in 51439

Solar panels in 51439 that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in 51439

The total length of the day in 51439 (Charter Oak, IA) today (June 22, 2025) will be 15 hours and 18 minutes. [More]

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51439 Solar Energy

Solar Energy in 51439 (Charter Oak, IA)

Solar Energy Data for 51439

See the chart below to see how different types of solar panel installations compare in 51439.

* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.


Solar Energy Analysis for 51439

Solar Radiation Data in 51439

Based on historical 51439 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 51439. [1]

The region associated with 51439 has an average monthly Global Horizontal Irradiance (GHI) of 4.07 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 8% less than the average monthly Direct Normal Irradiance (DNI) of 4.43 kWh/m2/day. [1]

Solar installations in 51439 that are always titled at the latitude of Charter Oak (Average Tilt at Latitude or ATaL) average 4.79 kWh/m2/day, or about 18% greater than the average monthly GHI of 4.07 kWh/m2/day and approximately 8% greater than the average monthly DNI of 4.43 kWh/m2/day. [1]

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 51439

Solar Radiation Data in 51439

See the chart below for monthly solar radiation levels in 51439.

* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)

Solar Radiation Analysis for 51439

Solar Radiation Data in 51439

The region associated with 51439 has a average annual solar radiation value of 5.05 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in 51439 is July with an average of 6.45 kWh/m2/day, followed by August at 5.99 kWh/m2/day and June at 5.9 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in 51439 are December with an average of 3.22 kWh/m2/day, followed by January with an average of 3.63 kWh/m2/day and November at 4.05 kWh/m2/day. [1]

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Solar Power Comparison: 51439 vs. the U.S.

Solar Power Levels in 51439

The average monthly solar radiation level in 51439, of 5.05 kilowatt hours per square meter per day (kWh/m2/day) is approximately 28% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 24% less than the average level of 6.61 kWh/m2/day in a city with historically high levels (NV). [1]


→ Values listed as 0 (zero) are not available (N/A).

Solar Power: 51439 vs. the U.S.

Below is a month-by-month comparison of how average 51439 solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). [1]

→ k/m/d = kWh/m2/day = kilowatt hours per square meter per day.
→ Values listed as 0 (zero) are not available (N/A).

Solar Data & Statistics for 51439

Sunrise / Sunset in 51439

  • Sunrise/Sunset for June 22, 2025 [2]
    • Sunrise: 5:45 am
    • Sunset: 9:03 pm
    • Length of Day: 15:18
Solar Energy Statistics for 51439

Best Months for Solar in 51439

  • Top Solar Power Months Historically [1]
    • Solar Radiation July (6.45 kWh/m2/day)
    • ATaL: July (6.12 kWh/m2/day)
    • DNI: July (6.15 kWh/m2/day)
    • GHI: July (6.58 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in 51439

We do not have data on solar panel installations in ZIP Code 51439 at the current time.

Solar Power Output in 51439

The Power of Solar in 51439

Monthly AC solar system output averages for 51439. Month-by-month solar power, as ranked by AC output, in 51439. [2]

* Amounts listed in kWhac (kilowatt hours (AC))

Solar Output Analysis for 51439

Solar Radiation Data in 51439

51439 has a average annual solar AC output value of 5801.75 kilowatt hours (AC). [2]

The month with the highest historical solar power output in 51439 is July with an average of 595.27 kWhac, followed by May at 554.68 kWhac and August at 552.13 kWhac. [2]

The three months that historically average the lowest average solar output levels in 51439 are December with an average of 334.71 kWhac, followed by January with an average of 379.27 kWhac and February at 389.66 kWhac. [2]

Weather Forecast for 51439 [5]

Sun Jun 22
89°F
Sky Is Clear
Min: 78°F
Max: 92°F
Strong breeze: 24 mps S
Precip.: n/a
Humidity: 55%
Cloud cover: 0%
Mon Jun 23
78°F
Moderate Rain
Min: 68°F
Max: 81°F
Fresh Breeze: 24 mps S
Precip.: Chance of Rain
Humidity: 74%
Cloud cover: 95%
Tue Jun 24
72°F
Heavy Intensity Rain
Min: 65°F
Max: 82°F
Gentle Breeze: 12 mps E
Precip.: Chance of Rain
Humidity: 86%
Cloud cover: 100%
Wed Jun 25
80°F
Light Rain
Min: 67°F
Max: 88°F
Moderate breeze: 14 mps S
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 94%
Thu Jun 26
85°F
Moderate Rain
Min: 66°F
Max: 86°F
Moderate breeze: 15 mps SSW
Precip.: Chance of Rain
Humidity: 61%
Cloud cover: 53%
Fri Jun 27
86°F
Light Rain
Min: 65°F
Max: 89°F
Moderate breeze: 13 mps S
Precip.: Chance of Rain
Humidity: 60%
Cloud cover: 1%

More about 51439

About 51439

The ZIP code 51439 is associated with the city of Charter Oak in Crawford County in Iowa.

51439 Solar Power

51439 Solar Energy & Power

To learn more about solar energy and solar power in 51439, or for more solar-related resources for IA, check out the U.S. Energy Information Administration.

Did you know?

Various missions to space by different countries are known to utilize solar energy as a main power source.

Cities in Iowa

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References

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