| SPI timescales | Climatic Variables | Statistic (1991-2020) | Value |
| SPI-12 | Drought | Number of drought events | 168 |
| Drought Severity | Mean | 9.618505 | |
| Standard deviation | 12.366295 | ||
| Minimum | 0.0942 | ||
| Maximum | 37.2467 | ||
| Skewness | 1.259743 | ||
| Kurtosis | 0.556482 | ||
| Drought Duration (Months) | Mean | 11.2 | |
| Standard deviation | 11.760709 | ||
| Minimum | 1 | ||
| Maximum | 36 | ||
| Skewness | 1.182199 | ||
| Kurtosis | 0.446859 | ||
| SPI-6 | Drought | Number of drought events | 181 |
| Drought Severity | Mean | 4.138478 | |
| Standard deviation | 5.461377 | ||
| Minimum | 0.00723 | ||
| Maximum | 22.4139 | ||
| Skewness | 1.550083 | ||
| Kurtosis | 2.334523 | ||
| Drought Duration (Months) | Mean | 5.323529 | |
| Standard deviation | 6.366201 | ||
| Minimum | 1 | ||
| Maximum | 32 | ||
| Skewness | 2.427510 | ||
| Kurtosis | 8.298513 | ||
| SPI-3 | Drought | Number of drought events | 174 |
| Drought Severity | Mean | 2.178106 | |
| Standard deviation | 2.299336 | ||
| Minimum | 0.0224 | ||
| Maximum | 8.16114 | ||
| Skewness | 1.184149 | ||
| Kurtosis | 0.373987 |