US Solar Energy Data by Location

Comprehensive solar irradiance, peak sun hours, and production estimates for 20 cities across 13 states. Data sourced from NREL and NASA POWER APIs.

Cities

States

4.86 kWh/m²/day

Avg. GHI across all cities

Top Solar Cities by Irradiance

Browse by State

Arizona (5.78) (1) California (5.17) (4) Colorado (5.0) (1) District of Columbia (5.0) (1) Florida (5.0) (1) Illinois (3.89) (1) Indiana (5.0) (1) New York (3.93) (1) North Carolina (5.0) (1) Ohio (5.0) (1) Pennsylvania (4.02) (1) Texas (4.8) (5) Washington (5.0) (1)

Solar Data by State

Arizona

Above Average

5.78

kWh/m²/day avg

1 city page

View Arizona Cities

California

Average

5.17

kWh/m²/day avg

4 city pages

View California Cities

Colorado

Average

5.0

kWh/m²/day avg

1 city page

View Colorado Cities

District of Columbia

Average

5.0

kWh/m²/day avg

1 city page

View District of Columbia Cities

Florida

Average

5.0

kWh/m²/day avg

1 city page

View Florida Cities

Illinois

Average

3.89

kWh/m²/day avg

1 city page

View Illinois Cities

Indiana

Average

5.0

kWh/m²/day avg

1 city page

View Indiana Cities

New York

Average

3.93

kWh/m²/day avg

1 city page

View New York Cities

North Carolina

Average

5.0

kWh/m²/day avg

1 city page

View North Carolina Cities

Ohio

Average

5.0

kWh/m²/day avg

1 city page

View Ohio Cities

Pennsylvania

Average

4.02

kWh/m²/day avg

1 city page

View Pennsylvania Cities

Texas

Average

4.8

kWh/m²/day avg

5 city pages

View Texas Cities

Washington

Average

5.0

kWh/m²/day avg

1 city page

View Washington Cities

City-level averages aren't enough?

These pages show area-averaged solar data. For a precise analysis of your roof — accounting for orientation, shading, and your specific utility rate — use SolarScope's Site Studio.

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