Based on historical Ukiah, CA data, solar panels that always track the sun throughout the day will produce the maximum solar energy output in Ukiah.[1]
Ukiah has an average monthly Global Horizontal Irradiance (GHI) of 4.96 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 17% less than the average monthly Direct Normal Irradiance (DNI) of 5.97 kWh/m2/day. [1]
Solar installations in Ukiah that are always titled at the latitude of Ukiah (Average Tilt at Latitude or ATaL) average 5.69 kWh/m2/day, or about 15% greater than the average monthly GHI of 4.96 kWh/m2/day and approximately 5% less than the average monthly DNI of 5.97 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 Ukiah
Solar Radiation Data in Ukiah, CA
See the chart below for monthly solar radiation levels in Ukiah.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Ukiah, CA
Ukiah, CA has a average annual solar radiation value of 5.79 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Ukiah is August with an average of 7.55 kWh/m2/day, followed by July at 7.41 kWh/m2/day and September at 7.18 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Ukiah (California) are December with an average of 3.58 kWh/m2/day, followed by January with an average of 3.92 kWh/m2/day and February at 4.06 kWh/m2/day. [1]
Solar Power Comparison: Ukiah vs. the U.S.
Solar Power Levels in Ukiah
The average monthly solar radiation level in Ukiah, CA, of 5.79 kilowatt hours per square meter per day (kWh/m2/day) is approximately 47% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 12% 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: Ukiah vs. the U.S.
Below is a month-by-month comparison of how average Ukiah 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).
We do not currently have data on solar panel installations in the city of Ukiah, CA at this current time.
Solar Power Output in Ukiah
The Power of Solar in Ukiah, CA
Monthly AC solar system output averages for Ukiah (ca). Month-by-month solar power, as ranked by AC output, in Ukiah. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Ukiah, CA
Ukiah (CA) has a average annual solar AC output value of 6238.19 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Ukiah is August with an average of 661.97 kWhac, followed by July at 651.43 kWhac and May at 620.29 kWhac. [2]
The three months that historically average the lowest average solar output levels in Ukiah (California) are December with an average of 348.05 kWhac, followed by February with an average of 349.59 kWhac and January at 376.92 kWhac. [2]
Cost of Utilities in Ukiah
Ukiah Electricity Costs
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Solar Power Poll: Ukiah
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Ukiah Natural Gas Costs
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Calm: 4 mps NE
Precip.: Chance of Rain
Humidity: 55%
Cloud cover: 100%
Fri Nov 29
59°F
Light Rain
Min: 49°F
Max: 59°F
Calm: 3 mps ESE
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 100%
More about Ukiah
About Ukiah
The city of Ukiah, CA in Mendocino County has an approximate population of 16,075. [6]
Ukiah, CA Solar Energy
To learn more about solar energy and solar power Ukiah, CA, or for more solar-related resources for Ukiah, visit the U.S. Energy Information Administration.
Did you know?
Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.