The aim of the work was to detect climate trends or climate variations in eight annual average maximum air temperature series (Tmax) of the State of São Paulo. The study was based on parametric and non-parametric tests. In the Pindorama and Ubatuba series, positive trends in Tmax values were detected during the last 28/24 years. No significant trends were detected in the Cordeirópolis, Mococa, Monte Alegre do Sul, and Ribeirão Preto series. The probability density function associated with the series of Campinas and Piracicaba, shows significant shifts to the right. In the Campinas data series this shift on Tmax data distribution occurred 30 years (approximately) earlier than in the Tmax of Piracicaba data distribution. Thus, despite the majority of the data series have shown important variations on their statistical parameters, it was not possible to identify a temporal variability pattern on the eight Tmax analyzed series.
temporal variability; probability density function
