NOAA/ESRL/PSD Catalog http://www.esrl.noaa.gov/psd/thredds/catalog/Datasets/udel.airt.precip/catalog.html

Dataset Size Last Modified
     Folder  udel.airt.precip   --
         air.mon.1981-2010.ltm.v301.nc 18.66 Mbytes 2016-04-05T21:19:41Z
         air.mon.1981-2010.ltm.v401.nc 18.66 Mbytes 2016-04-05T21:19:38Z
         air.mon.ltm.v301.nc 18.66 Mbytes 2016-04-05T21:19:41Z
         air.mon.ltm.v401.nc 18.66 Mbytes 2016-04-05T21:19:38Z
         air.mon.mean.v301.nc 230.0 Mbytes 2016-04-05T21:19:34Z
         air.mon.mean.v401.nc 241.8 Mbytes 2016-04-05T21:19:39Z
         precip.mon.1981-2010.ltm.v301.nc 18.66 Mbytes 2016-04-05T21:19:36Z
         precip.mon.1981-2010.ltm.v401.nc 18.66 Mbytes 2016-04-05T21:19:34Z
         precip.mon.ltm.v301.nc 18.66 Mbytes 2016-04-05T21:19:36Z
         precip.mon.ltm.v401.nc 18.66 Mbytes 2016-04-05T21:19:34Z
         precip.mon.total.v301.nc 283.4 Mbytes 2016-04-05T21:19:39Z
         precip.mon.total.v401.nc 292.1 Mbytes 2016-04-05T21:19:39Z

NOAA/ESRL/PSD at NOAA ESRL PSD see Info
THREDDS Data Server [Version 4.3.15 - 20121218.1126] Documentation