National Climatic Data Center

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About the National Climatic Data Center


NCDC is the world's largest active archive of weather data. NCDC produces numerous climate publications and responds to data requests from all over the world. NCDC operates the World Data Center for Meteorology which is co-located at NCDC in Asheville, North Carolina, and the World Data Center for Paleoclimatology which is located in Boulder, Colorado.

NCDC supports a three tier national climate services support program - the partners include: NCDC, Regional Climate Centers, and State Climatologists.

Access the Data


Global Historical Climatology Network (GHCN) of the National Climate Data Center - contains historical temperature, precipitation, and pressure data for thousands of land stations worldwide. Part of the National Climatic Data Center.

Global Historical Climatology Network

Contents of the Data

There is quite a bit of data on the website, not all of it free.

  • COOP Data/Record of Climatological Observations, US
  • 1971-2000 US Climate Normals Products
  • Climate Maps of the United States
  • Storm Data Publication/Database
  • Climatic Wind Data for the US through 1996
  • Comparative Climatic Data Publication
  • SRRS Weather Maps/Charts
  • Historical Significant Events Imagery
  • Heating/Cooling Degree Dat & Temperature/Precipitation UPdates
  • Surface Data - Global Summary of the Day
  • Climates of the World, HCS 6-4
  • US Historical Climatology Network (USHCN)
  • Surface Data - Global Historical Network (GHCN) Version 2
  • Freeze/Frost Data (CLIM 20 Supp. 1)
  • NCDC Web Page Resources