Equatorial Pacific SST and precipitation
Correlation analysis between each of the 44 precipitation indices and the 4 SST anomaly indices, corresponding to the regions Niño 1+2, Niño 3, Niño 3.4, and Niño 4, has been performed for each calendar month in the climatological rainy season of October to March. The output of the analysis is presented both in Table 2 and Figures 3-5.