U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020)
Reference System Information
Identification Information
Distribution Information
Data Quality Information
Metadata Maintenance Information

Metadata: 
  File identifier: 
      gov.noaa.ncdc:C01619
  Language: 
      eng; USA
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author:  title: NCEI (pointOfContact)
    Responsible party: uuid: 440b3ac2-64a5-46e2-9846-38305718b644
      Organisation name: 
          NOAA National Centers for Environmental Information
      Contact info: 
        Contact: 
          Address: 
            Address: 
              Electronic mail address: 
                  ncei.info@noaa.gov
          Online Resource: 
            Online Resource: 
              Linkage: 
                URL: 
                  https://www.ncei.noaa.gov/contact
              Name: 
                  NCEI Contact Information
              Description: 
                  Information for contacts at NCEI.
              Function: 
                Online function code: 
                  information
      Role: 
        Role code: 
          pointOfContact
  Date stamp: 
      2023-08-10
  Metadata standard name: 
      ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
  Metadata standard version: 
      ISO 19115-2:2009(E)
Return To Index

Reference system info: Reference system: Reference system identifier: RS Identifier: Authority: Citation: Title: EPSG Geodetic Parameter Dataset Registry Date: Date: Date: 2008-11-12 Date type: Date type code: publication Cited responsible party: Responsible party: Organisation name: International Association of Oil and Gas Producers (OGP) Geomatics Committee Contact info: Contact: Online Resource: Online Resource: Linkage: URL: http://www.epsg-registry.org/ Application profile: Data Search Application Name: EPSG Geodetic Parameter Dataset Registry Application Description: Interface to the EPSG Geodetic Parameter Dataset Registry Function: Online function code: search Role: Role code: custodian Cited responsible party: Responsible party: Organisation name: International Association of Oil and Gas Producers (OGP) Geomatics Committee Contact info: Contact: Online Resource: Online Resource: Linkage: URL: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269 Application profile: Download Name: Coordinate Reference System data in GML Description: Coordinate Reference System data in GML Function: Online function code: download Role: Role code: custodian Code: urn:ogc:def:crs:EPSG::4269 Version: unknown
Return To Index

Identification info: Data identification: Citation: Citation: Title: U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020) Date: Date: Date: 2023-05-15 Date type: Date type code: publication Edition: 1.0.1 Identifier: Identifier: Code: NCEI DSI: 2049_01 Identifier: Identifier: Code: gov.noaa.ncdc:C01619 Cited responsible party: Responsible party: Organisation name: NOAA National Centers for Environmental Information Role: Role code: publisher Cited responsible party: Responsible party: Individual name: Palecki, Michael Organisation name: National Centers for Environmental Information/NOAA Position name: Project Manager for Normals Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: michael.palecki@noaa.gov Role: Role code: author Cited responsible party: Responsible party: Individual name: Palecki, Michael Organisation name: National Centers for Environmental Information/NOAA Position name: Project Manager for Normals Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: michael.palecki@noaa.gov Role: Role code: principalInvestigator Cited responsible party: Responsible party: Individual name: Durre, Imke Organisation name: National Centers for Environmental Information/NOAA Position name: Product Section Chief Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: imke.durre@noaa.gov Role: Role code: author Cited responsible party: Responsible party: Individual name: Durre, Imke Organisation name: National Centers for Environmental Information/NOAA Position name: Product Section Chief Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: imke.durre@noaa.gov Role: Role code: sponsor Cited responsible party: Responsible party: Individual name: Durre, Imke Organisation name: National Centers for Environmental Information/NOAA Position name: Product Section Chief Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: imke.durre@noaa.gov Role: Role code: processor Cited responsible party: Responsible party: Individual name: Applequist, Scott Organisation name: National Centers for Environmental Information/NOAA Position name: Physical Scientist Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: scott.applequist@noaa.gov Role: Role code: author Cited responsible party: Responsible party: Individual name: Applequist, Scott Organisation name: National Centers for Environmental Information/NOAA Position name: Physical Scientist Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: scott.applequist@noaa.gov Role: Role code: processor Cited responsible party: Responsible party: Individual name: Arguez, Anthony Organisation name: National Centers for Environmental Information/NOAA Position name: Physical Scientist Contact info: Contact: Address: Address: Electronic mail address: anthony.arguez@noaa.gov Role: Role code: author Cited responsible party: Responsible party: Individual name: Arguez, Anthony Organisation name: National Centers for Environmental Information/NOAA Position name: Physical Scientist Contact info: Contact: Address: Address: Electronic mail address: anthony.arguez@noaa.gov Role: Role code: processor Cited responsible party: Responsible party: Individual name: Lawrimore, Jay Organisation name: National Centers for Environmental Information/NOAA Position name: Dataset Section Chief Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: jay.lawrimore@noaa.gov Role: Role code: author Cited responsible party: Responsible party: Individual name: Lawrimore, Jay Organisation name: National Centers for Environmental Information/NOAA Position name: Dataset Section Chief Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: jay.lawrimore@noaa.gov Role: Role code: sponsor Presentation form: Presentation form code: documentDigital Abstract: The U.S. Annual/Seasonal Climate Normals for 1991 to 2020 are 30-year averages of meteorological parameters that provide users the information needed to understand typical climate conditions 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 Annual/Seasonal 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), lengths of growing seasons, probabilities of first or last temperature threshold exceedances. All data utilized in the computation of the 1991-2020 Climate Normals were taken from the Global Historical Climatology Network-Daily and -Monthly datasets. Temperatures were homogenized, adjusted for time-of-observation, and made serially complete where possible based on information from nearby stations. Precipitation totals were also made serially complete where possible based using nearby stations. 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. Purpose: NOAA NCEI and NOAA NWS will be primary users of this dataset. Other users include many federal, state, and local government agencies; corporations and individuals in all U.S. Economic Sectors, and the general public. The archived data will be be used to compare local climates across the United States. It will also be used to place current observations in context by allowing the calculation of anomalies (differences from normals) from a consistent reference period of record. Status: Progress code: completed Point of contact: Responsible party: Individual name: Michael Palecki Organisation name: National Centers for Environmental Information/NOAA Position name: Project Manager for Normals Contact info: Contact: Phone: Telephone: Voice: 8282714340 Address: Address: Electronic mail address: michael.palecki@noaa.gov Role: Role code: principalInvestigator Resource maintenance: Maintenance information: Maintenance and update frequency: Maintenance frequency code: asNeeded Graphic overview: BrowseGraphic: File name: https://www.ncei.noaa.gov/pub/data/metadata/images/normal_1991-2020-y2dprcp-0501.png File description: Accumulated Precipitation Normal from January 1 to May 1 File type: PNG Descriptive keywords: Keywords: Keyword: Earth Science > Climate Indicators Keyword: Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature Keyword: Earth Science > Atmosphere > Precipitation > Precipitation Amount Type: Keyword type code: theme Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Science Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: Web Browser Name: Global Change Master Directory (GCMD) Keywords 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. Function: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: Atmospheric - Surface - Air Temperature Keyword: Atmospheric - Surface - Precipitation Type: Keyword type code: theme Thesaurus name: Citation: Title: Global Climate Observing System (GCOS) Essential Climate Variables (ECVs) Date: Date: Date: 2017 Date type: Date type code: publication Edition: Release 2017 Cited responsible party: Responsible party: Organisation name: World Meteorological Organization, United Nations Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://public.wmo.int/en/programmes/global-climate-observing-system/essential-climate-variables Protocol: HTTP Application profile: Information Name: GCOS Essential Climate Variables Description: Overview of the GCOS Essential Climate Variables. Function: Online function code: information Role: Role code: custodian Descriptive keywords: Keywords: Keyword: Continent > North America > United States Of America Keyword: Ocean > Pacific Ocean > Central Pacific Ocean Type: Keyword type code: place Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Location Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: Web Browser Name: Global Change Master Directory (GCMD) Keywords 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. Function: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: Vertical Location > Land Surface Type: Keyword type code: stratum Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Location Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: Web Browser Name: Global Change Master Directory (GCMD) Keywords 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. Function: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: Point Resolution Type: Keyword type code: dataResolution Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: Web Browser Name: Global Change Master Directory (GCMD) Keywords 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. Function: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: Point Resolution Type: Keyword type code: dataResolution Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Vertical Data Resolution Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: Web Browser Name: Global Change Master Directory (GCMD) Keywords 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. Function: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Type: Keyword type code: dataCentre Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Data Center Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: Web Browser Name: Global Change Master Directory (GCMD) Keywords 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. Function: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: Normals Type: Keyword type code: theme Thesaurus name: Citation: Title: Keyword Thesaurus Title Date: missing Resource constraints: Constraints: Use limitation: 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. Resource constraints: Legal constraints: Use constraints: Restriction code: otherRestrictions Other 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]. Resource constraints: title: Distribution Liability Legal constraints: uuid: dadd4ac3-2b9f-4db5-8603-71285b94c3d7 Access constraints: Restriction code: otherRestrictions Other constraints: 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. Resource constraints: title: Use Liability Legal constraints: uuid: e8163b1b-fb5a-4f4e-8d5c-ed06da10e21b Use constraints: Restriction code: otherRestrictions Other constraints: 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. Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: NOAA'S 1981-2010 U.S. CLIMATE NORMALS An Overview Date: Date: Date: 2012-11-01 Date type: Date type code: publication Edition: Bulletin of the American Meteorological Society, 93, 1687-1697 Cited responsible party: Responsible party: Organisation name: National Centers for Environmental Information/NOAA Role: Role code: author Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://doi.org/10.1175/BAMS-D-11-00197.1 Application profile: Web Browser Name: NOAA'S 1981-2010 U.S. CLIMATE NORMALS An Overview Description: Paper DOI Function: Online function code: information Role: missing Association Type: Association type code: largerWorkCitation Initiative Type: Initiative type code: sciencePaper Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: NOAA's 1981-2010 U.S. Climate Normals: Monthly Precipitation, Snowfall, and Snow Depth Date: Date: Date: 2013-11-01 Date type: Date type code: publication Edition: Journal of Applied Meteorology and Climatology, 52, 2377-2395 Cited responsible party: Responsible party: Organisation name: National Centers for Environmental Information/NOAA Role: Role code: author Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://doi.org/10.1175/JAMC-D-13-051.1 Application profile: Web Browser Name: NOAA's 1981-2010 U.S. Climate Normals: Monthly Precipitation, Snowfall, and Snow Depth Description: Paper DOI Function: Online function code: information Role: missing Association Type: Association type code: largerWorkCitation Initiative Type: Initiative type code: sciencePaper Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: U.S. Gridded Climate Normals Date: inapplicable Cited responsible party: Responsible party: Organisation name: NOAA National Centers for Environmental Information Role: Role code: author Cited responsible party: Responsible party: Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals#tab-1027 Name: NCEI web page for the U.S. Gridded Climate Normals Description: Related dataset web page with general information and access links for that dataset. Function: Online function code: information Role: inapplicable Association Type: Association type code: crossReference Initiative Type: Initiative type code: project Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: 1981–2010 U.S. Climate Normals Date: inapplicable Cited responsible party: Responsible party: Organisation name: NOAA National Centers for Environmental Information Role: Role code: author Cited responsible party: Responsible party: Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals#tab-331 Name: NCEI web page for the 1981–2010 U.S. Climate Normals Description: Related dataset web page with general information and access links for that dataset. Function: Online function code: information Role: inapplicable Association Type: Association type code: crossReference Initiative Type: Initiative type code: project Spatial representation type: Spatial representation type code: textTable Language: eng; USA Topic category: Topic category code: climatologyMeteorologyAtmosphere Environment description: The input files are available in an ascii format, piped to scripts and programs on normalswork-dev, and completed as *.csv files in bulk variable storage and station file storage formats. They are then validated and quality controlled, and shipped to climon-prod for shipping to archive directories and online storage directories. Extent: Extent: Geographic element: Geographic bounding box: Extent type code: 1 West bound longitude: 134.0 East bound longitude: -64.0 South bound latitude: -15.0 North bound latitude: 72.0 Temporal element: Temporal extent: Extent: Time period: Description: ground condition Begin date: 1991-01 End date: 2020-12 gml:timeInterval: 3
Return To Index

Distribution info: Distribution: Distributor: Distributor: Distributor contact: title: NCEI (distributor) Responsible party: uuid: 440b3ac2-64a5-46e2-9846-38305718b644 Organisation name: NOAA National Centers for Environmental Information Contact info: Contact: Address: Address: Electronic mail address: ncei.info@noaa.gov Online Resource: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/contact Name: NCEI Contact Information Description: Information for contacts at NCEI. Function: Online function code: information Role: Role code: distributor Distribution Order Process: Standard order process: Fees: In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Ordering instructions: Contact NCEI for other distribution options and instructions. Distributor format: Format: Name: CSV Version: 1.0 Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc:C01619/html Protocol: HTTPS Application profile: Landing Page Name: NCEI Dataset Landing Page Description: Landing page for the dataset. Function: Online function code: information Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals Protocol: HTTPS Application profile: Information Name: NCEI Product Information Page Description: Description of the data and related resources. Function: Online function code: information Distributor transfer options: Digital transfer options: Transfer size: missing Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020 Protocol: HTTPS Application profile: Download Name: NCEI Direct Download (Dataset Files) Description: Direct download for the dataset. Function: Online function code: download Distributor transfer options: Digital transfer options: Transfer size: missing Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/access/search/data-search/normals-annualseasonal-1991-2020 Protocol: HTTPS Application profile: Data Search Application Name: NCEI Common Access Description: Search data via the interface Function: Online function code: search Distributor transfer options: Digital transfer options: Transfer size: missing Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/doc/Normals_ANN_Documentation_1991-2020.pdf Protocol: HTTPS Application profile: Documentation Name: Normals Annual Documentation 1991-2020 Description: Normals User Guide that provides product descriptions and formats for all data and products produced and made available to users. Function: Online function code: information Distributor transfer options: Digital transfer options: Transfer size: missing Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/doc/Normals_Calculation_Methodology_2020.pdf Protocol: HTTPS Application profile: Documentation Name: Normals Calculation Methodology 1991-2020 Description: The science and methodologies used to generate official climate normals for the United States. Function: Online function code: information Distributor transfer options: Digital transfer options: Transfer size: missing Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/doc/Readme_By-Variable_By-Station_Normals_Files.txt Protocol: HTTPS Application profile: Documentation Name: Readme By-Variable By-Station Normals Files 1991-2020 Description: This document describes the technical layout of the CSV normals files in both the individual, by-station, format and the grouped by-variable format. It also provides a guide to the location of the variables within the larger by-variable tar files. Function: Online function code: information Distributor transfer options: Digital transfer options: Transfer size: missing Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/doc/Normals_ANN_1991-2020_sample.csv Protocol: HTTPS Application profile: Sample Name: Normals Annual 1991-2020 CSV Sample Description: This sample data file shows how the data are formatted in CSV and is for example purposes only. Function: Online function code: download Distributor transfer options: Digital transfer options: Transfer size: missing Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/doc/Normals_ANN_1991-2020_sample.pdf Protocol: HTTPS Application profile: Sample Name: Normals Annual 1991-2020 PDF Sample Description: This sample data file shows how the data are formatted in PDF and is for example purposes only. Function: Online function code: download Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://registry.opendata.aws/noaa-climate-normals/ Protocol: HTTPS Application profile: Information Name: Registry of Open Data on AWS Description: Information on AWS data access. Function: Online function code: information Distributor transfer options: Digital transfer options: Units of distribution: Region: us-east-1 Online: Online Resource: Linkage: URL: https://noaa-normals-pds.s3.amazonaws.com/index.html#normals-annualseasonal/1991-2020/ Protocol: HTTPS Application profile: Download Name: AWS S3 Explorer (Region: us-east-1) Description: Browse view to explore the S3 bucket. Function: Online function code: download Distributor transfer options: Digital transfer options: Units of distribution: Region: us-east Online: Online Resource: Linkage: URL: https://microsoft.github.io/AIforEarthDataSets/data/noaa-climatenormals.html Protocol: HTTPS Application profile: Information Name: Azure Landing Page (Region: us-east) Description: Information on Microsoft Azure data access. Function: Online function code: information
Return To Index

Data quality info: Data quality: Scope: Scope: Hierarchy level: Scope code: dataset Extent: xlink: #boundingExtent Lineage: Lineage: Statement: The Annual/Seasonal 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. Process step: Process Step: Description: The main body of 1991-2020 U.S. Climate Normals were produced in 2021. However, since then a small number of requests have been received from our primary partner, the National Weather Service, for some station normals to be recalculated or added to the compilation of station normals. Reasons for these recalculations vary, but are usually accompanied by one of two causes. Either there is a correction of a flagging situation that caused a previously calculated normal to be rejected by internal quality control, or a significant amount of the underlying observational data has been replaced or added to a station record. Normals calculations follow the same procedures as used in the main production run. These new stations normals files are then tarred with the existing normals files, or used to replace existing normals files as necessary. All existing station normals that have not been replaced are carried over into Version 1.0.1. Date and time: 2023-05-15T00:00:00 Processor: Responsible party: Organisation name: NOAA National Centers for Environmental Information Role: Role code: processor
Return To Index

Metadata maintenance: Maintenance information: Maintenance and update frequency: Maintenance frequency code: asNeeded Maintenance note: Bulk metadata change applied on 2023-07-03. See version control repository history for metadata change details.
Return To Index