| Years | Percentage (%) | ||||
Classes | SPEI-1 | SPEI-3 | SPEI-12 | SPEI-1 | SPEI-3 | SPEI-12 |
Extremely wet (SPEI > 2) | 1 | 2 | 1 | 2 | 3 | 2 |
Very wet (1.50 < SPEI < 1.99) | 4 | 1 | 5 | 7 | 2 | 9 |
Moderately wet (1.00 < SPEI < 1.49) | 11 | 8 | 9 | 19 | 14 | 15 |
Normal (−0.99 < SPEI < 0.99) | 17 | 19.5 | 15.5 | 59 | 67 | 53 |
Moderately dry (−1 < SPEI < −1.49) | 6 | 5 | 8 | 10 | 9 | 14 |
Very dry (−1.50 < SPEI < −1.99) | 2 | 3 | 4 | 3 | 5 | 7 |
Extremely dry (SPEI < −2) | 0 | 0 | 0 | 0 | 0 | 0 |