Solar Energy & Solar Power Resources

Solar Power in 61101 (Rockford, IL)

Solar Energy in 61101

Sorry, historical solar radition values for 61101 are currently unavailable, please check back later.

Solar Panels in 61101

Solar panels in 61101 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 61101

The total length of the day in 61101 (Rockford, IL) today (September 06, 2026) will be 12 hours and 58 minutes. [More]

Solar Energy in 61101 (Rockford, IL)

Solar Energy Data for 61101

See the chart below to see how different types of solar panel installations compare in 61101.

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

Solar Energy Analysis for 61101

Sorry, it is not possible to complete our solar energy analysis for 61101 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 61101

Solar Radiation Data in 61101

See the chart below for monthly solar radiation levels in 61101.

Sorry, data is not currently available.

Solar Radiation Analysis for 61101

Sorry, it is not possible to complete our solar radiation analysis for 61101 at this time.

Historical solar radiation data for 61101 is not currently available.

Please check back later.

Solar Power Comparison: 61101 vs. the U.S.

Solar Power Levels in 61101

Sorry, solar radiation data for 61101 is not currently available.

Solar Power: 61101 vs. the U.S.

Below is a month-by-month comparison of how average 61101 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 Illinois is not currently available.

Solar Data & Statistics for 61101

Sunrise / Sunset in 61101

Sunrise/Sunset for September 06, 2026 ^[2]
- Sunrise: 6:25 am
- Sunset: 7:23 pm
- Length of Day: 12:58

Best Months for Solar in 61101

Monthly data not currently available.

Solar Panel Installs in 61101

We do not have data on solar panel installations in ZIP Code 61101 at the current time.

Solar Power Output in 61101

The Power of Solar in 61101

Monthly AC solar system output averages for 61101. Month-by-month solar power, as ranked by AC output, in 61101. ^[2]

AC output data is not currently available.

Solar Output Analysis for 61101

Sorry, it is not possible to complete our solar radiation analysis for 61101 at this time.

Historical solar radiation data for 61101 is not currently available.

Please check back later.

Weather Forecast for 61101 ^[5]

Sun Sep 6

74°F

Scattered Clouds
Min: 65°F
Max: 82°F

Gentle Breeze: 10 mps E
Precip.: n/a
Humidity: 71%
Cloud cover: 38%

Mon Sep 7

78°F

Broken Clouds
Min: 62°F
Max: 81°F

Gentle Breeze: 10 mps SE
Precip.: n/a
Humidity: 49%
Cloud cover: 70%

Tue Sep 8

79°F

Light Rain
Min: 57°F
Max: 84°F

Moderate breeze: 18 mps SSE
Precip.: Chance of Rain
Humidity: 53%
Cloud cover: 96%

Wed Sep 9

71°F

Moderate Rain
Min: 65°F
Max: 76°F

Fresh Breeze: 20 mps WSW
Precip.: Chance of Rain
Humidity: 89%
Cloud cover: 100%

Thu Sep 10

75°F

Overcast Clouds
Min: 62°F
Max: 79°F

Gentle Breeze: 9 mps NW
Precip.: n/a
Humidity: 42%
Cloud cover: 99%

Fri Sep 11

79°F

Scattered Clouds
Min: 57°F
Max: 80°F

Moderate breeze: 16 mps SSW
Precip.: n/a
Humidity: 45%
Cloud cover: 31%

More about 61101

About 61101

The ZIP code 61101 is associated with the city of Rockford in Winnebago County in Illinois.

61101 Solar Energy & Power

To learn more about solar energy and solar power in 61101, or for more solar-related resources for IL, check out the U.S. Energy Information Administration.