Download TRMM Precipitation

The Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA) provides a combined precipitation estimates from multiple satellites including monthly gauge data at fine scales (0.25° x 0.25° and 3 hourly). The scripts bellow download post processed 3B42 version 6 and version 7 TRMM products in NetCDF format on a daily time step. NetCDF file can easily be converted to raster using ArcGIS.

The script bellow downloads data from here.
View/Download Tool for Downloading 3B42 V6

The script bellow downloads data from here.
View/Download Tool for Downloading 3B42 V7

Download NCDC and NexRAD Precipitation

The National Climatic Data Center (NCDC) gauge and Next generation RADar (NexRAD) precipitation tools are available under the ArcGIS tab. The ArcGIS toolbox includes tools to download NCDC gauge and NexRAD precipitation.