hhis dataset contains the derived data used to reproduce the hydrological drought analyses for the Nile Basin at Dongola. It includes monthly SRI-3, SRI-6, and SRI-12 series for historical (1925–2000) and future (2025–2100) periods, drought-event characteristics derived using run theory, annual minimum SRI series used for extreme-value analysis, and return-level input data. Drought events are defined using SRI ≤ −1. The dataset supports reproducibility of the event-based and extreme-value analyses presented in the associated manuscript.