ICDC TDS Catalog https://icdc.cen.uni-hamburg.de/thredds/catalog/ftpthredds/knsc/atmosphere/monthly/catalog.html

Dataset Size Last Modified
     Folder  monthly   --
         Folder  30_year_means/   --
         Folder  air_pressure/   --
         Folder  air_temperature/   --
         Folder  dew_point_temperature/   --

ICDC TDS at Integrated Climate Data Center (ICDC) / University of Hamburg see Info
Documentation