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    • U.S. Climate Normals 2020: U.S. Daily Climate Normals (2006-2020)

    Metadata Updated: September 19, 2023

    The U.S. Daily Climate Normals for 2006 to 2020 are 15-year averages of meteorological parameters that provide users supplemental normals for specialized applications for thousands of locations across the United States, as well as U.S. Territories and Commonwealths, and the Compact of Free Association nations. The stations used include those from the NWS Cooperative Observer Program (COOP) Network as well as some additional stations that have a Weather Bureau Army-Navy (WBAN) station identification number, including stations from the U.S. Climate Reference Network (USCRN) and other automated observation stations. In addition, precipitation normals for stations from the U.S. Snow Telemetry (SNOTEL) Network and the citizen-science Community Collaborative Rain, Hail and Snow (CoCoRaHS) Network are also available. The Daily Climate Normals dataset includes various derived products such as air temperature normals (including maximum and minimum temperature normals, heating and cooling degree day normals, and others), precipitation normals (including precipitation and snowfall totals, and percentiles, frequencies and other statistics of precipitation, snowfall, and snow depth), and agricultural normals (growing degree days (GDDs)). All data utilized in the computation of the 2006-2020 Climate Normals were taken from the Global Historical Climatology Network-Daily, but the Daily Normals are adjusted so that they are consistent with the Monthly Normals. The source datasets (including intermediate datasets used in the computation of products) are also archived at NOAA NCEI. A comparatively small number of station normals sets (~50) have been added as Version 1.0.1 to correct quality issues or because additional historical data during the 1991-2020 period has been ingested.

    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 15, 2023 (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 15, 2023 (publication)
    Responsible Party National Centers for Environmental Information/NOAA (Principal Investigator)
    Contact Email
    Guid gov.noaa.ncdc:C01625
    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 45e4216b-06a0-4a96-97cd-42a3c4a8cf5f
    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 Daily Normals are generated from Global Historical Climatology Network Monthly V.4 and Daily V.3 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 2006-01
    Temporal Extent End 2020-12

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