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    • U.S. Climate Normals 2020: U.S. Hourly Climate Normals (1991-2020)

    Metadata Updated: September 19, 2023

    The U.S. Hourly Climate Normals for 1991 to 2020 provides hourly meteorological parameters for hundreds of U.S. stations located across the 50 states, as well as U.S. Territories and Commonwealths, and the Compact of Free Association nations. These stations are now largely automated, and are usually part of the Automated Surface Observing System (ASOS) or Automated Weather Observing System (AWOS). The hourly normals include temperature, dew point, heat index, wind chill, wind, cloudiness, heating and cooling degree hours, pressure normals, and other statistics of these variables. Users can access the data either by product or by station. All data utilized in the computation of the 1991-2020 Climate Normals were taken from the Integrated Surface Dataset (ISD) Lite (a subset of NCEI's Integrated Surface Dataset). These source datasets (including intermediate datasets used in the computation of products) are also archived at the NOAA 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 August 10, 2023
    Metadata Created Date October 28, 2022
    Metadata Updated Date September 19, 2023
    Reference Date(s) May 4, 2021 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from ncdc

    Other Data Resources

    Graphic Preview

    Accumulated Precipitation Normal from January 1 to May 1

    Additional Metadata

    Resource Type Dataset
    Metadata Date August 10, 2023
    Metadata Created Date October 28, 2022
    Metadata Updated Date September 19, 2023
    Reference Date(s) May 4, 2021 (publication)
    Responsible Party National Centers for Environmental Information/NOAA (Principal Investigator)
    Contact Email
    Guid gov.noaa.ncdc:C01622
    Access Constraints Cite as: Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anothony; Lawrimore, Jay. 2021: U.S. Climate Normals 2020: U.S. Hourly Climate Normals (1991-2020). [indicate subset used]. NOAA National Centers for Environmental Information. https/doi.org/{{DOI}}. Accessed [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 -64.0
    Bbox North Lat 72.0
    Bbox South Lat -15.0
    Bbox West Long 134.0
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Accumulated Precipitation Normal from January 1 to May 1
    Graphic Preview File https://www.ncei.noaa.gov/pub/data/metadata/images/normal_1991-2020-y2dprcp-0501.png
    Graphic Preview Type PNG
    Harvest Object Id cb5031fa-283f-42a6-b157-04ea3f6d578e
    Harvest Source Id 2cb3ef77-1683-4c2a-9119-dc65e50917c6
    Harvest Source Title ncdc
    Licence These normals are calculated at weather stations and are limited in their applicability at locations in between stations as distance from the station increases horizontally and vertically.
    Lineage The Hourly Normals are generated from Integrated Surface Dataset Lite using Fortran software routines developed for the 1981-2010 normals production and updated for technical improvements.
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[134.0, -15.0], [-64.0, -15.0], [-64.0, 72.0], [134.0, 72.0], [134.0, -15.0]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4269
    Spatial Harvester True
    Temporal Extent Begin 1991-01
    Temporal Extent End 2020-12

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