| Statistical parameter | I (W/m2) | Dew Point (˚C) | Relative humidity (%) | Temperature (˚C) | Pressure (Kpa) |
| Mape | 0.589106 | 0.263855 | 0.092241 | 0.069331 | 0.002700 |
| Me | −290.250000 | −1.650000 | −6.332500 | 0.800000 | −2.750000 |
| Mae | 290.250000 | 1.650000 | 6.332500 | 0.800000 | 2.750000 |
| Mpe | −0.589106 | −0.263855 | −0.092241 | 0.069331 | −0.002700 |
| Rmse | 332.625540 | 2.067607 | 6.844679 | 0.956556 | 4.555217 |
| Correlation Coefficient | 0.984106 | −0.690522 | 0.918542 | −0.077331 | −0.333333 |
| Minmax | 0.589106 | 0.263855 | 0.092241 | 0.063099 | 0.002700 |