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Classification order of monthly rainfall through the quantile technique for the city of Recife—PE with the appropriate classes and probabilities, with Qy (y = 15, 35, 65, and 85%) being the quantile limit used for each classification and y the sampling rainfall value.
| Classification | Quantile |
|---|---|
| Very dry | y ≤ Q0.15 |
| Dry | Q0.15 < y ≤ Q0.35 |
| Normal | Q0.35 < y < Q0.65 |
| Rainy | Q0.65 ≤ y < Q0.85 |
| Very rainy | y ≥ Q0.85 |
Adapted from Monteiro et al. (21).
