<URL:http://www.ncdc.noaa.gov>
<URL:ftp://ftp.ncdc.noaa.gov/pub/data/>
<URL:telnet://hurricane.ncdc.noaa.gov> (login "storm", password "research")
  National Climatic Data Center (NCDC) of NOAA.   Inventories and metadata for various climate datasets are available, along with selected datasets.
Monthly Climatic Data for the World for the last several years is available here in the directory <URL:ftp://ftp.ncdc.noaa.gov/pub/data/mcdw/>.
This is a World Data Center A for meteorology.

<URL:http://www.cdc.noaa.gov>
  The Climate Diagnostics Center (CDC), previously the Climate Research 
Division of the ERL Climate Monitoring and Diagnostics Laboratory (CMDL), conducts diagnostic studies of climate variability on time scales of months to centuries.  CDC climatological data is archived in netCDF format. This site gives access to metadata (information about these datasets) which can be searched by various keywords;  actual data must be ordered from CAC by email or fill-in forms.

<URL:http://nic.fb4.noaa.gov>
<URL:ftp://nic.fb4.noaa.gov/pub/>
  Climate Prediction Center.  Climate products and services consisting of operational prediction of climate variations, monitoring of the climate system and development of data bases for determining current global and regional climate anomalies and trends, and analysis of their origins and linkages to the complete climate system, including ENSO advisories and indices, and monthly mean and anomaly fields.

<URL:http://daac.gsfc.nasa.gov/DAAC_DOCS/gdaac_home.html>
  Goddard Distributed Active Archive Center (DAAC). Data and related 
services for global change research and education.  Data holdings cover
information on the upper atmosphere, atmospheric dynamics, and global 
biosphere. 
  Products include data from Upper Atmosphere Research Satellite (UARS), Total Ozone Mapping Satellites (TOMS), Coastal Zone Color Scanner (CZCS), Sea-viewing Wide Field of View Sensor (SeaWiFS), Pathfinder Advanced Very High Resolution (AVHRR) land sensor 4-Dimensional Assimilation dataset, Total Ozone Vertical Sounder (TOVS) Pathfinder data, Tropical Ocean Global Atmosphere (TOGA) Coupled Ocean-Atmosphere Response Experiment (COARE) Field Observation experiment data.

<URL:http://rainbow.ldgo.columbia.edu>
  Lamont-Doherty Earth Observatory of Columbia University's Climate Group's server.  The "Data Library" contains various climatologies for the ocean and atmosphere, and topographic data, along with a nice interactive system for selection and display of data.

<URL:http://www.ssec.wisc.edu/~rbrbrn/awsproj.html>
<URL:http://uwamrc.ssec.wisc.edu/amrchome.html>
  The Space Science and Engineering Center at the University of 
Wisconsin - Madison maintains archives of Antarctic data, including
synoptic reports and satellite images.

<URL:http://www.giss.nasa.gov/Data/>
<URL:ftp://ftp.giss.nasa.gov>
  Various monthly mean data files, including surface temperature anomalies, grids of various variables used in the GCM II (General Circ. Model).  Also various maps of vegetation indices, cultivation indices, wetland ecosystems.  
  The ftp machine can not be accessed using a WWW browser -- you must ftp directly.  The file "GISS.HELP" contains an index.  As of Feb 96,
the ftp server's data is somewhat outdated.

<URL:http://isccp.giss.nasa.gov>
  ISCCP C2 cloud data from GISS.  This data is no longer on the main
server, above.

<URL:http://strat-www.met.fu-berlin.de> 
  Free University of Berlin Stratospheric Research Group.  Stratospheric data (heights and temperatures).

<URL:http://www.dpi.qld.gov.au/longpdk/>
  "The Long Paddock" Climatology of Australia with focus on Queensland.
Maps of monthly rainfall, SOI, SST.  Information on drought and the
southern oscillation.

<URL:http://thunder.atms.purdue.edu:80/toga_atlas/>
  Climatology of the TOGA-COARE and adjacent regions.

<URL:http://www.cyberus.ca/~sorokoj/>
  Links to many paleoclimate resources.

<URL:http://climate.sage.dri.edu>
  Western Regional Climate Center

<URL:http://met-www.cit.cornell.edu/nrcc_home.html>
  Northeast Regional Climate Center

<URL:http://sercc.dnr.state.sc.us/sercc.html>
  Southeast Regional Climate Center

<URL:http://maestro.srcc.lsu.edu/srcc.html>
  Southern Regional Climate Center

<URL:http://hpccsun.unl.edu/>
  High Plains Regional Climate Center