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    • 5-Minute Surface Weather Observations from the Automated Surface Observing Systems (ASOS) Network

    Metadata Updated: December 12, 2025

    This dataset includes five-minute reports with elements for wind speed and direction, visibility, present weather, temperature, dew point temperature, station altimeter, pressure and density altitude, and relative humidity for approximately 900 stations in the U.S., Puerto Rico, the U.S. Virgin Islands, and some Pacific island territories as part of the Automated Surface Observing Systems (ASOS) network. The ASOS Program is a joint effort of the National Weather Service (NWS), the Federal Aviation Administration (FAA), and the Department of Defense (DOD). The ASOS network was designed to support weather forecast activities and aviation operations and, at the same time, support the needs of the meteorological, hydrological, and climatological research communities. The ASOS 5-minute data were collected and processed by the NOAA National Centers for Environmental Information (NCEI).

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date December 3, 2025
    Metadata Created Date December 12, 2025
    Metadata Updated Date December 12, 2025
    Reference Date(s) 2005 (publication)
    Frequency Of Update daily

    Metadata Source

    Harvested from ncdc

    Other Data Resources

    Graphic Preview

    ASOS weather sensors (credit: NOAA/NWS)

    Additional Metadata

    Resource Type Dataset
    Metadata Date December 3, 2025
    Metadata Created Date December 12, 2025
    Metadata Updated Date December 12, 2025
    Reference Date(s) 2005 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncdc:C00418
    Access Constraints Cite as: NOAA National Weather Service, U.S. Federal Aviation Administration, U.S. Department of Defense, NOAA National Centers for Environmental Information (2005): 5-Minute Surface Weather Observations from the Automated Surface Observing Systems (ASOS) Network. [indicate subset used]. NOAA National Centers for Environmental Information. NCEI DSI 6401_02. [access date]., Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -60.0
    Bbox North Lat 72.0
    Bbox South Lat 15.0
    Bbox West Long 170.0
    Coupled Resource
    Frequency Of Update daily
    Graphic Preview Description ASOS weather sensors (credit: NOAA/NWS)
    Graphic Preview File https://www.ncei.noaa.gov/pub/data/metadata/images/C00386_ASOS.jpg
    Graphic Preview Type JPEG
    Harvest Object Id 071d4cf6-f428-4d5a-ba35-2a978ae6c668
    Harvest Source Id 2cb3ef77-1683-4c2a-9119-dc65e50917c6
    Harvest Source Title ncdc
    Licence
    Lineage The data have been archived by the NOAA National Centers for Environmental Information.
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[170.0, 15.0], [-60.0, 15.0], [-60.0, 72.0], [170.0, 72.0], [170.0, 15.0]]]}
    Progress
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1996-07-01

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