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Monthly Global Climate Reports

NCDC’s global analyses aggregate information from many sources to construct a global and near-global understanding of large-scale conditions. To allow for the most complete set of international data possible, these reports are typically available on or about the 15th of the following month.

  • Global Analysis
    This report provides the latest snapshot of the global climate system in terms of temperature and precipitation around the globe. Global and regional temperatures are compared to average conditions, ranked among the long-term history, and their trends are analyzed. Global precipitation patterns are also analyzed.
  • Upper Air
    The Upper Air report provides monthly updates regarding the temperature of several layers within the troposphere and the stratosphere. The data used in these reports come from NCDC partners at the University of Alabama–Huntsville, Remote Sensing Systems, and the University of Washington.
  • Global Snow and Ice
    This report updates the latest Northern Hemisphere snow cover extent on hemispheric and continental spatial scales from October through May. Arctic and Antarctic sea ice statistics are provided year round. The information is gleaned from two of NCDC’s operational partners: The National Snow and Ice Data Center and the Rutgers University Global Snow Lab.
  • Global Hazards
    The Global Hazards report provides summary information related to notable and significant weather and climate events around the world. These reports often draw upon real-time information from external sources (international bodies, relief organizations, media reports), so they cannot be considered comprehensive and complete. When possible and appropriate, additional data and analysis is performed to provide stronger historical context for the reader.
  • Global Climate at a Glance
    This application can be used to retrieve monthly and annual global temperature anomaly maps that date back to 1880. Users can also create time series for locations around the globe by selecting a point on the map. The interactive interface allows users to adjust the vertical and horizontal axes of the time series plots to view a selected range of months or years of data or to view the entire period of record.