SPI Index Range | Category | Kriging Interpolation Area (ha) | Spline Interpolation Area (ha) |
−2.00 or less | Extremely dry | 3530.75 | 3962.25 |
−1.50 to −1.99 | Severely dry | 1281 | 1786.75 |
−1.00 to −1.49 | Moderately dry | 2175.75 | 3007.75 |
−0.99 to 0.99 | Near Normal | 23,389 | 20,740.25 |
1.00 to 1.49 | Moderately wet | 82.5 | 352.25 |
1.50 to 1.99 | Very wet | - | 271 |
2.00 and above | Extremely wet | - | 338.75 |