GPM Daily: https://disc.gsfc.nasa.gov/datasets/GPM_3IMERGDF_06/summary?keywords=GPM%203IMERGDF
TRMM Daily: https://disc.gsfc.nasa.gov/datasets/TRMM_3B42_Daily_7/summary?keywords=TRMM_3B42_Daily_7
MSWX: http://www.gloh2o.org/mswx/
CHRIPS: https://data.chc.ucsb.edu/products/CHIRPS-2.0/
PERSIANN: https://www.ncei.noaa.gov/data/precipitation-persiann/access/
ECMWF TIGGE: https://apps.ecmwf.int/datasets/data/tigge/levtype=sfc/type=cf/
NCAR TIGGE: https://rda.ucar.edu/datasets/ds330.3/?hash=access#!description