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Data Access: Long-Term Daily and Monthly Climate Records from Stations Across the Contiguous United States

The daily data include observations of maximum and minimum temperature, precipitation amount, snowfall amount, and snow depth. Monthly data include mean, maximum, and minimum temperature and total precipitation. Most records in both datasets extend through 2012.

Please refer to the daily and monthly data documentation before using these data.

These data are available via two pathways:

  • FTP: Daily Data and Monthly Data
  • Web interface: This interface allows users to query, plot, and download data from individual stations. CDIAC developed this system using Google MapsTM and SAS/IntrNetTM.

Note: A related product using a subset of the USHCN-Daily data is now available - DayRec: An Interface for Exploring United States Record-Maximum/Minimum Daily Temperatures

Please email Dale Kaiser with questions.