gov.noaa.nodc:0253808 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-04-03T22:18:55Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) WMO Climatological Standard Normals for 1991-2020 (NCEI Accession 0253808) 2023-08-01 publication 2025-01-22 revision 2022-06-10 creation International DOI Foundation (IDF) 10.25921/800j-vn07 NOAA National Centers for Environmental Information gov.noaa.nodc:0253808 NCEI Archive Management System 0253808 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Peer Hechler World Meteorological Organization (WMO) phechler@wmo.int https://public.wmo.int/en HTTPS World Meteorological Organization (WMO) website Institution web page information resourceProvider World Meteorological Organization (WMO) https://public.wmo.int/en HTTPS World Meteorological Organization (WMO) website Institution web page information resourceProvider Peer Hechler World Meteorological Organization, Climate Monitoring and Policy Services Division phechler@wmo.int pointOfContact Sarah Diouf World Meteorological Organization, Regional Climate Prediction Services Division pointOfContact WMO Member Nations author tableDigital The World Meteorological Organization (WMO) Climatological Standard Normals are a large suite of data products that provide information about typical climate conditions for thousands of locations across the world. Normals act both as a ruler to compare today’s weather and tomorrow’s forecast, and as a predictor of conditions on a calendar basis. The Normals are calculated for a uniform 30-year period, and consist of monthly averages and statistics of temperature, precipitation, and other climatological variables observed in all member countries. Member countries follow a standard set of methods for performing these calculations, WMO No.1203. The Normals are generated every 10 years in keeping with the needs of our users and the requirements of the WMO. These data allow travelers to pack the right clothes, farmers to plant the best crop varieties, and utilities to plan for seasonal energy usage. Many other important economic decisions that are made beyond the predictive range of standard weather forecasts are either based on or influenced by climate Normals. Finally, they are used most commonly in broadcast meteorology. These valuable data are stored by the World Data Center for Meteorology - Asheville. This dataset is available to the public for a wide variety of uses including scientific research and analysis. completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded NCEI Accession 0253808 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made. https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0253808 Preview graphic PNG 0253808 NCEI ACCESSION NUMBER 2022-06-08 publication AIR TEMPERATURE BAROMETRIC PRESSURE cloud amount/frequency INCOMING SOLAR RADIATION PRECIPITATION AMOUNT RELATIVE HUMIDITY sunshine VISIBILITY WIND DIRECTION WIND SPEED theme NODC DATA TYPES THESAURUS anemometer barometer ceilometer pyranometer rain gauge thermistor thermometer instrument NODC INSTRUMENT TYPES THESAURUS in situ theme NODC OBSERVATION TYPES THESAURUS World Meteorological Organization dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS World-Wide Distribution place NODC SEA AREA NAMES THESAURUS climatology theme WMO_CategoryCode 2012-09-15 publication UN/WMO > World Meteorological Organization, United Nations dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian EARTH SCIENCE > ATMOSPHERE > AEROSOLS > DUST/ASH/SMOKE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SURFACE PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > INCOMING SOLAR RADIATION EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR RADIATION EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > SUNSHINE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > DEW POINT TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES > CLOUD FREQUENCY EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > LIQUID PRECIPITATION > RAIN > FREEZING RAIN EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > SOLID PRECIPITATION > HAIL EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > SOLID PRECIPITATION > SNOW EARTH SCIENCE > ATMOSPHERE > WEATHER EVENTS > FOG EARTH SCIENCE > ATMOSPHERE > WEATHER EVENTS > LIGHTNING EARTH SCIENCE > CLIMATE INDICATORS > CRYOSPHERIC INDICATORS > SNOW DEPTH EARTH SCIENCE > CLIMATE INDICATORS > LAND SURFACE/AGRICULTURE INDICATORS > SOIL TEMPERATURE EARTH SCIENCE > OCEANS > OCEAN OPTICS theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Vapor Pressure theme Provider Data Types ANEMOMETERS > ANEMOMETERS BAROMETERS > BAROMETERS CEILOMETERS > CEILOMETERS PYRANOMETERS > PYRANOMETERS RAIN GAUGES > RAIN GAUGES THERMISTORS > THERMISTORS THERMOMETERS > THERMOMETERS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian CONTINENT > AFRICA CONTINENT > ANTARCTICA CONTINENT > ASIA CONTINENT > AUSTRALIA/NEW ZEALAND CONTINENT > EUROPE CONTINENT > NORTH AMERICA CONTINENT > SOUTH AMERICA GEOGRAPHIC REGION > GLOBAL OCEAN OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Global place Provider Place Names LNGHHU Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: WMO Member Nations (2023). WMO Climatological Standard Normals for 1991-2020 (NCEI Accession 0253808). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/800j-vn07. 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. otherRestrictions 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. WMO Guidelines on the Calculation of Climate Normals (WMO-No. 1203), 2017 edition 2021 publication 2017 WMO-No. 1203 https://library.wmo.int/idurl/4/55797 HTTPS https://library.wmo.int/idurl/4/55797 WMO calculation guidelines documentation information World Meteorological Organization (WMO) https://public.wmo.int/en HTTPS World Meteorological Organization (WMO) website Institution web page information publisher documentDigital WMO 1203 [accessed 2024-08-05] crossReference program eng; USA utf8 environment climatologyMeteorologyAtmosphere -180 180 -90 90 1991-01-01 2020-12-31 In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact 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. Contact NCEI for other distribution options and instructions. Originator data format 291.284 https://doi.org/10.25921/800j-vn07 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/253808 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/253808 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0216/0253808/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0253808 v1.1 was published. 2023-08-01T14:07:45Z NCEI Accession 0253808 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0253808/1.1 HTTPS NCEI Accession 0253808 v1.1 published 2023-08-01T14:07:45Z download NCEI Accession 0253808 was revised and v2.2 was published. Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. 2023-10-13T20:52:55Z NCEI Accession 0253808 v2.2 publication https://www.ncei.noaa.gov/archive/accession/0253808/2.2 HTTPS NCEI Accession 0253808 v2.2 published 2023-10-13T20:52:55Z download NCEI Accession 0253808 was revised and v3.3 was published. Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. 2024-05-28T17:37:29Z NCEI Accession 0253808 v3.3 publication https://www.ncei.noaa.gov/archive/accession/0253808/3.3 HTTPS NCEI Accession 0253808 v3.3 published 2024-05-28T17:37:29Z download NCEI Accession 0253808 was revised and v4.4 was published. Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. 2024-06-12T02:19:09Z NCEI Accession 0253808 v4.4 publication https://www.ncei.noaa.gov/archive/accession/0253808/4.4 HTTPS NCEI Accession 0253808 v4.4 published 2024-06-12T02:19:09Z download NCEI Accession 0253808 was revised and v5.5 was published. Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. 2024-08-14T17:14:10Z NCEI Accession 0253808 v5.5 publication https://www.ncei.noaa.gov/archive/accession/0253808/5.5 HTTPS NCEI Accession 0253808 v5.5 published 2024-08-14T17:14:10Z download NCEI Accession 0253808 was revised and v6.6 was published. Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. 2025-01-22T20:05:54Z NCEI Accession 0253808 v6.6 publication https://www.ncei.noaa.gov/archive/accession/0253808/6.6 HTTPS NCEI Accession 0253808 v6.6 published 2025-01-22T20:05:54Z download dataset 141 Countries/Territories provided 1991-2020 Normals data for their respective Nation's stations to the World Meteorological Organization (WMO) in 2022-2023. The WMO performed initial quality control before transferring the files to the NCEI/World Data Center for Meteorology where additional quality control and processing were performed. The relevant metadata, descriptive information, and documentation are included along with the data files in the archive package asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian anemometer anemometer measures wind speed An anemometer is an instrument that measures wind speed. Note that an aerovane (insttypes_id 175) is an anemometer which has a tail and a propeller to measure the speed and direction of the wind. barometer barometer Barometers are instruments for measuring atmospheric pressure; two types include mercury barometers and aneroid barometers. ceilometer ceilometer Ceilometers are devices using a laser or other light source to determine the height of a cloud base. An optical ceilometer uses triangulation to determine the height of a spot of light projected onto the base of the cloud; a laser ceilometer determines the height by measuring the time required for a pulse of light to be scattered back from the cloud base. pyranometer pyranometer Instrument that measure solar radiation. rain gauge rain gauge A device to measure the amount of liquid precipitation The definition of liquid precipitation is any form of water falling from the sky as rain. Rain gauge measures the amount of liquid precipitation. thermistor thermistor electronic temperature sensor thermally sensitive resistor thermometer thermometer generic thermometer or reversing thermometer use thermometer when temperature is a data type, but the exact instrument used to measure temperature is unknown