Abstract: In Paraíba, most farmers practice rainfed agriculture, which depends on rainfall for its full development. The rainfed crops studied were rice, beans, cassava and corn. The objectives of the research were: a) to identify the behavior of rainfall in the state of Paraíba between 1901 and 2020 and try to classify it into three specific periods: dry, normal and rainy; b) to gauge the levels of instability/stability of annual rainfall c) to design an instrument that is capable of gauging, in a weighted and compressed manner, the synergy that exists between the defining variables of rice, bean, manioc and corn production in Paraíba from 1945 to 2020, the years in which data is available......
KEYWORDS: Climate resilient agriculture; Semi-arid; Rainfall instability; Family farmers; Rainfall spatial and temporal variability; Climate variation.
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