The Pacific Rainfall Atlas for Hawaii and US-affiliated Islands has been updated based on the data from 1955-2007. Please click the following sections for details. We will update the Rainfall Anomaly Histograms and Pacific Basin Rainfall Analysis monthly or quarterly, and update the ENSO composite every 5 years or 10 years depending on the ENSO events. The ENSO is classfied according to the NOAA ENSO definition.