Climate Data Online

Climate Data Online (CDO)
Climate Data Online (CDO) provides a range of public web services that supply programmatic access to current data.  Data or information can be obtained using:

  • Map Search
    Allows data access using a map to search by country, state, city, ZIP code, climate division, and hydrologic unit. Many other geographic tools and secondary functions are also available.
  • Data Search
    Allows a search by station location and data type.
  • Legacy Access
    A number of products have not been migrated into the Climate Data Online map services and must be searched using the legacy interface. This link allows access to these datasets.
  • Product Catalog
    Search for many key products such as certified data and CD-ROMs/DVDs.

Climate Data Online (CDO) Help/FAQs
Check out this link for online help and frequently asked questions concerning the CDO system. (Note: You may have to scroll up to find your answer.)