gov.noaa.ncdc:C01765 eng; USA utf8 dataset DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ISO 19115 Metadata Contact 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern pointOfContact 2026-02-20T19:02:02 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA Typical Meteorological Year (TMY) (1998-2100) 2026 publication gov.noaa.ncdc:C01765 NOAA National Centers for Environmental Information Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern publisher NOAA National Centers for Environmental Information author tableDigital The Typical Meteorological Year (TMY) is an hourly time series that best represents a location's long-term weather conditions. It is a concatenation of 12 typical meteorological months from statistically analyzed and selected individual years from 1998-2022. NCEI’s TMY product is delivered through a point-and-click interface with a downloadable dataset. This product consists of a historical product and a future projections product. The historical product spans 1998-2022 and identifies the most typical years to represent each calendar month based on their statistical similarity to long-term weather norms. The future projections product uses historical analogs that are adjusted based on climate model projections through 2100 to represent conditions that may be typical in the future. These adjustments may increase or decrease the value of the parameters in the future. TMY is a requirement to support designing infrastructure that is energy-efficient and resilient to current and future weather conditions in various climate zones across the United States. NOAA National Centers for Environmental Information Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern pointOfContact asNeeded Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Dew Point Temperature Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Speed Earth Science > Atmosphere > Atmospheric Radiation > Solar Irradiance > Shortwave Downward Irradiance Earth Science > Atmosphere > Atmospheric Radiation > Incoming Solar Radiation Earth Science > Atmosphere > Atmospheric Radiation > Solar Radiation Earth Science > Atmosphere > Precipitation > Liquid Precipitation Earth Science > Atmosphere > Precipitation > Precipitation Amount Earth Science > Atmosphere > Atmospheric water vapor > Water vapor indicators > Humidity > Relative humidity Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud amount Earth Science > Atmosphere > Precipitation > Solid Precipitation > Snow Earth Science > Terrestrial hydrosphere > Snow/Ice > Snow depth Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Direction theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords 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. information publisher Continent > North America > United States Of America OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > PUERTO RICO OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > VIRGIN ISLANDS place Global Change Master Directory (GCMD) Location Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords 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. information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords 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. information publisher otherRestrictions These data were produced by NOAA and are not subject to copyright protection in the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0). SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0) There is no guarantee that the Additional Variables will illustrate a "typical" amount for the year selected. The TMY calculation does not take into account the Additional Variables, only the Core Variables. Instead, the Additional Variable data will be pulled from the same year as the Core Variables for that month. The TMY product utilizes two distinct solar radiation inputs: the POWER dataset is used poleward of 60°N due to the unavailability of NSRDB data in this region. The years that are chosen as typical for a station may be sensitive to the choice of solar radiation dataset input. The fTMY product relies on a single model and one climate scenario therefore should be viewed as just one potential future, not as a minimum, maximum, or expected outcome. otherRestrictions Cite as: NOAA National Centers for Environmental Information. (2026). NOAA Typical Meteorological Year (TMY) (1998-2100). [indicate subset used]. NOAA National Centers for Environmental Information. [access date]. otherRestrictions 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. NOAA Typical Meteorological Year (1998-2100) Technical User’s Guide 2025-11-03 publication https://www.ncei.noaa.gov/sites/default/files/2026-01/TMY%20Tech%20User%20Guide%20-%201.29.26.pdf HTTPS Web Browser NOAA Typical Meteorological Year (1998-2100) Technical User’s Guide Technical User Guide information NOAA National Centers for Environmental Information author crossReference userGuide NOAA Typical Meteorological Year (1998-2100) User’s Guide Appendix 2025-10-29 publication https://www.ncei.noaa.gov/sites/default/files/2025-11/TMY%20Appendix%20to%20User%20Guide%20-%2010.30.25.pdf HTTPS Web Browser NOAA Typical Meteorological Year (1998-2100) User’s Guide Appendix Appendix to the Technical User Guide information NOAA National Centers for Environmental Information author crossReference userGuide Typical Meteorological Year (Version Superseded) 1981-05 publication https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ncdc:C00045 HTTPS Landing Page NCEI Landing Page for Typical Meteorological Year (Version Superseded) Related dataset landing page information NOAA National Centers for Environmental Information author crossReference collection textTable eng; USA climatologyMeteorologyAtmosphere 1 134.0 -64.0 -15.0 72.0 ground condition 1998 2100 1 NOAA National Centers for Environmental Information Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern distributor In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media. ASCII Text EnergyPlus Weather (EPW) file 1 https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc:C01765/html HTTPS Landing Page NCEI Data Set Landing Page Landing page for the data set information 1 https://www.ncei.noaa.gov/products/typical-meteorological-year HTTPS Information NOAA Typical Meteorological Year (TMY) NOAA web service to calculate the Typical Meteorological Year (TMY) for a given user input. information 1 https://www.ncei.noaa.gov/access/typical-meteorological-year/ HTTPS Map Search Application TMY Interactive Map Interactive map application to create tailored calculations for different design scenarios. search dataset This dataset was produced by and is stewarded by the NOAA National Centers for Environmental Information (NCEI). processor Global Historical Climatology Network-hourly (GHCNh), Version 1 2024-03-01 publication NOAA National Centers for Environmental Information publisher https://doi.org/10.25921/jp3d-3v19 HTTPS Landing Page NCEI Dataset Landing Page Landing page for the GHCNh dataset. information NLR National Solar Radiation Solar Database (NSRDB), Version 3.2.2 publication National Laboratory of the Rockies publisher https://nsrdb.nrel.gov/ HTTPS Web Browser NSRDB: National Solar Radiation Database Dataset information page information NASA’s Prediction Of Worldwide Energy Resources (POWER), Version 2.4.9 publication GEOPHYSICAL FLUID DYNAMICS LABORATORY publisher https://power.larc.nasa.gov/ HTTPS Web Browser NASA Prediction Of Worldwide Energy Resources (POWER) Dataset information page information NOAA Geophysical Fluid Dynamics Laboratory (GFDL) Seamless System for Prediction and EArth System Research (SPEAR) 2021-02-01 publication GEOPHYSICAL FLUID DYNAMICS LATORATORY publisher https://www.gfdl.noaa.gov/spear/ HTTPS Landing Page SPEAR: Seamless System for Prediction and EArth System Research Dataset information page information repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 asNeeded Bulk metadata change applied on 2018-11-05. See version control repository history for metadata change details.