Sites Period Temperature Trend (°C/decade) Precipitation Trend (mm/decade) Txx Txn Tnx Tnn PRCPTOT Araripina 1962 -2011 0.72 (*) 1.82 -0.40 0.05 -25.4 Caruaru 1960 -2011 0.28 0.10 -0.37 -0.30 -03.5 Petrolina 1965 -2007 0.19 0.39 0.13 0.12 -42.0 Vitoria 1957 -2011 0.45 0.50 0.43 -0.01 07.5 Recife 1962 -2009 0.19 0.20 0.18 0.27 -44.2

Table 1: Trends and average values for the maximum and minimum of the highest temperature, maximum and minimum of the lowest temperature (°C/decade), rainfall trend (mm/decade) and average annual values for several locations. The featured colors (bold, blue, and black) indicate statistical significance of the trend indices: bold (99%), blue (95%), and black (90%). The values without statistical significance are in red.