Tropical Rainfall Measuring Mission (TRMM) data products are currently available from 1998 to the present.The TRMM is a joint mission between NASA and the Japan Aerospace Exploration Agency designed to monitor and study tropical rainfall. Global Precipitation Measurement data products will be provided following the launch of the GPM Core Observatory in 2013. Here we outline the types of products currently available for the TRMM and the various ways to query, view and download these precipitation products.