| Months | Ambient temperature (˚C) | Conversion efficiency (%) | ||||
| Maximum | Minimum | Average | Maximum | Minimum | Average | |
| April | 39.1 | 36.01 | 37.4 | 16.31 | 12.99 | 14.09 |
| May | 43.02 | 36.7 | 40.4 | 14.54 | 11.51 | 12.81 |
| June | 40.7 | 32.8 | 38.5 | 16.24 | 11.62 | 13.67 |
| July | 38.76 | 30.4 | 34.2 | 17.10 | 10.88 | 14.08 |
| August | 39.65 | 28.9 | 32.9 | 14.92 | 10.61 | 12.66 |