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Climate Normals

Climate Normals are the latest three-decade averages of climatological variables including temperature and precipitation. This product is produced once every 10 years. The 1981–2010 U.S. Climate Normals dataset is the latest release of NCDC’s Climate Normals. This dataset contains daily and monthly Normals of temperature, precipitation, snowfall, heating and cooling degree days, frost/freeze dates, and growing degree days calculated from observations at approximately 9,800 stations operated by NOAA’s National Weather Service.

  • 1981–2010 U.S. Climate Normals
    Easy access to 1981–2010 temperature and precipitation Climate Normals and visualizations that demonstrate cycles and interesting features within the data. Answers to frequently asked questions about the 1981–2010 Climate Normals and a list of reference publications are also provided.
  • Advanced Access to 1981–2010 U.S. Climate Normals
    Hourly, daily, monthly, and annual temperature and precipitation Climate Normals for locations that can be selected by station, zip code, city, county, or state via an interactive map. This advanced tool also provides access to supplemental Normals, which include snowfall, heating and cooling degree days, frost/freeze dates, and growing degree days.
  • 1971–2000 U.S. Climate Normals Data and Information
    Access to the previous version of the U.S. Climate Normals, which includes similar products to the newly updated 1981–2010 Climate Normals.