Attention: NCDC systems Global Summary of the Day, Global Hourly Data, Climate Indices, Climate Station Summaries and Marine Data are currently unavailable. These systems will be online by Friday, Feb 27. For immediate access to the FTP data, please visit Datasets Listing . We apologize for the inconvenience.

Many of NCDC Popular Publications are now available at no charge

Many of our most popular serial publications from our Image and Publications system are now offered at no cost to the public. The Local Climatological Data publication can still be ordered online for Department of Commerce (DOC) certification. Please see the Certification of Data page for more information.