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Global Summary of the Month (GSOM), Version 1

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2016-01-01T00:00:00.000+00:00
This Global Summaries dataset, known as GSOM for Monthly, contains a monthly resolution of meteorological elements from 1763 to present with updates applied weekly. The major parameters are: monthly mean maximum, mean minimum and mean temperatures; monthly total precipitation and snowfall; departure from normal of the mean temperature and total precipitation; monthly heating and cooling degree days; number of days that temperatures and precipitation are above or below certain thresholds; extreme daily temperature and precipitation amounts; number of days with fog; and number of days with thunderstorms. The primary input data source is the Global Historical Climatology Network - Daily (GHCN-Daily) dataset. The Global Summaries datasets also include a yearly resolution of meteorological elements in the GSOY (for Yearly) dataset. See associated resources for more information. These datasets are not to be confused with "GHCN-Monthly", "Annual Summaries" or "NCDC Summary of the Month". There are unique elements that are produced globally within the GSOM and GSOY data files. There are also bias corrected temperature data in GHCN-Monthly, which are not available in GSOM and GSOY. The GSOM and GSOY datasets replace the legacy U.S. COOP Summaries (DSI-3220), and have been expanded to include non-U.S. (global) stations. U.S. COOP Summaries (DSI-3220) only includes National Weather Service (NWS) COOP Published, or "Published in CD", sites.

Resources

13 resources available

  • NCEI Dataset Landing Page

    PLACEHOLDER/VALUE
    Download

  • GSOM Documentation

    PLACEHOLDER/VALUE
    Download

  • NCEI Data Search

    PLACEHOLDER/VALUE
    Download

  • NCEI Map Server

    PLACEHOLDER/VALUE
    Download

  • NCEI Direct Download

    PLACEHOLDER/VALUE
    Download

  • KML File

    PLACEHOLDER/VALUE
    Download

  • Global Summary of the Month CSV Sample

    PLACEHOLDER/VALUE
    Download

  • Global Summary of the Month PDF Sample

    PLACEHOLDER/VALUE
    Download

  • NCEI landing page for Global Summary of the Year (GSOY)

    PLACEHOLDER/VALUE
    Download

  • Global Change Master Directory (GCMD) Keywords

    PLACEHOLDER/VALUE
    Download

  • GCOS Essential Climate Variables

    PLACEHOLDER/VALUE
    Download

  • 0000-0001-9479-3205

    PLACEHOLDER/VALUE
    Download

  • NOAA National Centers for Environmental Information (NCEI)

    PLACEHOLDER/VALUE
    Download

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Earth Science > Atmosphere > Precipitation > Precipitation Amount Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain Earth Science > Atmosphere > Precipitation > Solid Precipitation > Snow Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Maximum/Minimum Temperature Earth Science > Atmosphere > Atmospheric Temperature > Atmospheric Temperature Indices > Heating Degree Days Earth Science > Atmosphere > Atmospheric Temperature > Atmospheric Temperature Indices > Cooling Degree Days Earth Science > Atmosphere > Atmospheric Winds > Surface Winds Earth Science > Atmosphere > Tropospheric/Low Level Clouds (observed/Analyzed) > Fog Earth Science > Atmosphere > Weather Events > Rain Storms Atmospheric - Surface - Air Pressure Atmospheric - Surface - Air Temperature Atmospheric - Surface - Precipitation Atmospheric - Surface - Wind Speed And Direction Thermometers Rain Gauges Barometers Anemometers DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Geographic Region > Global Land Monthly - < Annual Global Summary of the Month (GSOM) Global Summaries Monthly GHCN > Global Historical Climatology Network

Complete Metadata
@type dcat:Dataset
accessLevel non-public
accrualPeriodicity R/P1W
contactPoint 
                                            {
  "fn": "NOAA National Centers for Environmental Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:ncei.orders@noaa.gov"
}
describedByType application/octet-steam
description This Global Summaries dataset, known as GSOM for Monthly, contains a monthly resolution of meteorological elements from 1763 to present with updates applied weekly. The major parameters are: monthly mean maximum, mean minimum and mean temperatures; monthly total precipitation and snowfall; departure from normal of the mean temperature and total precipitation; monthly heating and cooling degree days; number of days that temperatures and precipitation are above or below certain thresholds; extreme daily temperature and precipitation amounts; number of days with fog; and number of days with thunderstorms. The primary input data source is the Global Historical Climatology Network - Daily (GHCN-Daily) dataset. The Global Summaries datasets also include a yearly resolution of meteorological elements in the GSOY (for Yearly) dataset. See associated resources for more information. These datasets are not to be confused with "GHCN-Monthly", "Annual Summaries" or "NCDC Summary of the Month". There are unique elements that are produced globally within the GSOM and GSOY data files. There are also bias corrected temperature data in GHCN-Monthly, which are not available in GSOM and GSOY. The GSOM and GSOY datasets replace the legacy U.S. COOP Summaries (DSI-3220), and have been expanded to include non-U.S. (global) stations. U.S. COOP Summaries (DSI-3220) only includes National Weather Service (NWS) COOP Published, or "Published in CD", sites.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Dataset Landing Page",
    "mediaType": "placeholder/value",
    "description": "Landing page for the dataset.",
    "downloadURL": "https://doi.org/10.7289/V5QV3JJ5",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GSOM Documentation",
    "mediaType": "placeholder/value",
    "description": "Detailed dataset description of the GSOM (Global Summary of the Month).",
    "downloadURL": "https://www.ncei.noaa.gov/data/gsom/doc/GSOM_documentation.pdf",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Data Search",
    "mediaType": "placeholder/value",
    "description": "Search for data by time period, location and type.",
    "downloadURL": "https://www.ncei.noaa.gov/access/search/data-search/global-summary-of-the-month",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Map Server",
    "mediaType": "placeholder/value",
    "description": "Dynamic GIS mapping application to locate stations and data for selected layers",
    "downloadURL": "https://www.ncei.noaa.gov/maps/monthly/",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Direct Download",
    "mediaType": "placeholder/value",
    "description": "Direct download links for the dataset files.",
    "downloadURL": "https://www.ncei.noaa.gov/data/global-summary-of-the-month/",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "KML File",
    "mediaType": "placeholder/value",
    "description": "Geographic information for the dataset in a KMZ file format.",
    "downloadURL": "https://gis.ncdc.noaa.gov/kml/gsom.kmz",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Global Summary of the Month CSV Sample",
    "mediaType": "placeholder/value",
    "description": "This sample data file shows how the data are formatted in CSV and is for example purposes only.",
    "downloadURL": "https://www.ncei.noaa.gov/pub/data/cdo/samples/gsom_sample_csv.csv",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Global Summary of the Month PDF Sample",
    "mediaType": "placeholder/value",
    "description": "This sample data file shows how the data are formatted in PDF and is for example purposes only.",
    "downloadURL": "https://www.ncei.noaa.gov/pub/data/cdo/samples/gsom_sample_pdf.pdf",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI landing page for Global Summary of the Year (GSOY)",
    "mediaType": "placeholder/value",
    "description": "Related dataset landing page.",
    "downloadURL": "https://doi.org/10.7289/JWPF-Y430",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Global Change Master Directory (GCMD) Keywords",
    "mediaType": "placeholder/value",
    "description": "The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.",
    "downloadURL": "https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCOS Essential Climate Variables",
    "mediaType": "placeholder/value",
    "description": "Overview of the GCOS Essential Climate Variables.",
    "downloadURL": "https://public.wmo.int/en/programmes/global-climate-observing-system/essential-climate-variables",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "0000-0001-9479-3205",
    "mediaType": "placeholder/value",
    "description": "ORCID (Open Researcher and Contributor ID) of the author.",
    "downloadURL": "https://orcid.org/0000-0001-9778-0178",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NOAA National Centers for Environmental Information (NCEI)",
    "mediaType": "placeholder/value",
    "description": "NCEI home page with information, data access and contact information.",
    "downloadURL": "https://www.ncei.noaa.gov",
    "describedByType": "application/octet-steam"
  }
]
identifier gov.noaa.ncdc:C00946
isPartOf Global Summary of the Year (GSOY), Version 1
issued 2016-01-01T00:00:00.000+00:00
keyword 
                                            [
  "Earth Science > Atmosphere > Precipitation > Precipitation Amount",
  "Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain",
  "Earth Science > Atmosphere > Precipitation > Solid Precipitation > Snow",
  "Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure",
  "Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Maximum/Minimum Temperature",
  "Earth Science > Atmosphere > Atmospheric Temperature > Atmospheric Temperature Indices > Heating Degree Days",
  "Earth Science > Atmosphere > Atmospheric Temperature > Atmospheric Temperature Indices > Cooling Degree Days",
  "Earth Science > Atmosphere > Atmospheric Winds > Surface Winds",
  "Earth Science > Atmosphere > Tropospheric/Low Level Clouds (observed/Analyzed) > Fog",
  "Earth Science > Atmosphere > Weather Events > Rain Storms",
  "Atmospheric - Surface - Air Pressure",
  "Atmospheric - Surface - Air Temperature",
  "Atmospheric - Surface - Precipitation",
  "Atmospheric - Surface - Wind Speed And Direction",
  "Thermometers",
  "Rain Gauges",
  "Barometers",
  "Anemometers",
  "DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "Geographic Region > Global Land",
  "Monthly - < Annual",
  "Global Summary of the Month (GSOM)",
  "Global Summaries",
  "Monthly",
  "GHCN > Global Historical Climatology Network"
]
landingPage https://orcid.org/0000-0001-9778-0178
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2016-01-01T00:00:00.000+00:00
publisher 
                                            {
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
                                            [
  "https://doi.org/10.7289/JWPF-Y430"
]
rights otherRestrictions
spatial 180.0,-90.0,-180.0,90.0
temporal 1763-01-01T00:00:00+00:00/1763-01-01T00:00:00+00:00
title Global Summary of the Month (GSOM), Version 1

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