• It is simple and data undemanding, needing exclusively monthly precipitation time series. • One of its marks of identity is its rainfall anomaly accummulation, whose computation is restarted anytime negative anomalies reappear. • The DEPI values are the empirical probability of exceedance of the calculated rainfall cumulative anomalies. • The research revealed that the DEPI shows great ability to reflect the onset, end, actual duration and peak of the drought.
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