Abstract
Many recent climatological studies aim to reconstruct past climate on thebasis ofdifferent data sources. In the present work, the drought events that occurredin westernSicily during the period 1565–1915 have been analysed, using historicalinformation.Inside the cathedral of Erice, a small and ancient town in western Sicily,there is amarble plate reporting the dates of the processions held during that period.Thisinformation, together with other documents and manuscripts found in the citylibrary,has allowed us to reconstruct the drought chronology. The comparison betweentheseseries and the quantitative data on precipitation indicates some agreement.Theapplication of the operator ARP (Automatic Research for Periodicities) showssignificantperiods of 11, 17, 22, 32, 73, 90 years. Finally, the comparison between ENSOanddrought chronology shows that in periods of many drought events a reductionof ENSOevents occurred and vice versa.
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