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    • United States Historical Climatology Network (USHCN), Version 2.5

    Metadata Updated: September 19, 2023

    The U.S. Historical Climatology Network Monthly Data, Version 2.5 consists of precipitation and temperature data "corrected" for changes in station location, instrumentation, and observing practices. The vast majority of stations are from the NOAA Cooperative Observer Program (COOP) Network. Stations have been selected according to coverage, length of data record and completeness, and historical stability. Data includes sets of Maximum, Minimum and Average Temperature and Precipitation data that are either (1) raw (non-adjusted though flagged for possible quality issues), (2) adjusted due to time of observation bias (TOB) or (3) put through the Pairwise Homogenization Algorithm (PHA). The data also is archived with station information and source code for reading the data.

    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 June 23, 2023
    Metadata Created Date February 3, 2023
    Metadata Updated Date September 19, 2023
    Reference Date(s) October 1, 2012 (publication)
    Frequency Of Update weekly

    Metadata Source

    Harvested from ncdc

    Other Data Resources

    Graphic Preview

    COOP Network Station Map

    Additional Metadata

    Resource Type Dataset
    Metadata Date June 23, 2023
    Metadata Created Date February 3, 2023
    Metadata Updated Date September 19, 2023
    Reference Date(s) October 1, 2012 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncdc:C00895
    Access Constraints Cite as: Menne, Matthew J.; Williams, Claude N. Jr. (2012): United States Historical Climatology Network (USHCN), Version 2.5.x.YYYYMMDD [indicate minor version and date of access]. NOAA National Centers for Environmental Information. doi: 10.7289/V56W98B4 [indicate access date], Users of the data are also requested to cite the paper: Menne, M.J., C.N. Williams, and R.S. Vose, 2009: The United States Historical Climatology Network monthly temperature data, Version 2. Bulletin of the American Meteorological Society, 90, 993-1007., 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 -55.0
    Bbox North Lat 52.0
    Bbox South Lat 23.0
    Bbox West Long -125.0
    Coupled Resource
    Frequency Of Update weekly
    Graphic Preview Description COOP Network Station Map
    Graphic Preview File https://www.ncei.noaa.gov/pub/data/metadata/images/C00895_COOP Network Map-USHCN.png
    Graphic Preview Type PNG
    Harvest Object Id 5a32eb93-76df-4fa5-9a6e-9c1c359273be
    Harvest Source Id 2cb3ef77-1683-4c2a-9119-dc65e50917c6
    Harvest Source Title ncdc
    Licence
    Lineage This dataset replaced the V2 dataset in 2012. The version 2.5 processing steps are essentially the same as in version 2.0, but the version number change reflects modifications to the underlying database as well as coding changes to the pairwise homogenization algorithm (PHA) that improve its overall efficiency.
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-125.0, 23.0], [-55.0, 23.0], [-55.0, 52.0], [-125.0, 52.0], [-125.0, 23.0]]]}
    Progress onGoing
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1891-01-01

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