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Dataset Overview | National Centers for Environmental Information (NCEI)

U.S. Climate Divisional Dataset (Version Superseded)

TCDD

browse graphicDivisional Data GIS image
This data has been superseded by a newer version of the dataset. Please refer to NOAA's Climate Divisional Database for more information. The U.S. Climate Divisional Dataset provides data access to current U.S. temperature, precipitation and drought indeces. Divisional indices included are: Precipitation Index, Palmer Drought Severity Index, Palmer Hydrological Drought Index, Modified Palmer Drought Severity Index, Temperature, Palmer Z Index, Cooling Degree Days, Heating Degree Days, 1-Month Standardized Precipitation Index (SPI), 2-Month (SPI), 3-Month (SPI), 6-Month (SPI),12-Month (SPI) and the 24-Month (SPI). All of these Indices, except for the SPI, are available for Regional, State and National views as well. There are 344 climate divisions in the CONUS. For each climate division, monthly station temperature and precipitation values are computed from the daily observations. The divisional values are weighted by area to compute statewide values and the statewide values are weighted by area to compute regional values. The indices were computed using daily station data from 1895 to present.
Cite this dataset when used as a source.
  • NCEI DSI 9640_01
  • gov.noaa.ncdc:C00702
gov.noaa.ncdc:C00702
Full Text · XML
Download Data
Distribution Formats
  • fixed-length ASCII text
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Customer Engagement Branch
NOAA National Centers for Environmental Information
1-828-271-4800
ncei.orders@noaa.gov
Dataset Point of Contact Chris Fenimore or Karin Gleason
Climate Monitoring Branch Representative
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
+1 828-271-4800
cmb.contact@noaa.gov
Time Period 1895-01-01 to Present
Spatial Bounding Box Coordinates
West: -125.0
East: -66.0
South: 24.0
North: 50.0
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 1984-01-01
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Monthly
Purpose The U.S. Climate Divisional Dataset is the only long-term temporally and spatially complete dataset from 1895 to the present for the contiguous United States (CONUS) from NCDC. USCDD has been used for many decades to compute long term temperature, precipitation, and drought indices. The spatial coverage was from the divisional level up to the national level. The indices were computed using daily station data from 1895 to present.
Use Limitations
  • Data is derived from all observations available at the time of data production.
Cited Authors
  • User Engagement and Services Branch
    DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Originators
  • User Engagement and Services Branch
    DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature
  • Earth Science > Atmosphere > Atmospheric Temperature > Degree Days
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Maximum/Minimum Temperature
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature
  • Earth Science > Atmosphere > Atmospheric Temperature > Temperature Anomalies
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Temperature Tendency
  • Earth Science > Atmosphere > Precipitation > Precipitation Amount
  • Earth Science > Atmosphere > Precipitation > Precipitation Anomalies
Global Climate Observing System (GCOS) Essential Climate Variables (ECVs)
  • Atmospheric - Surface - Air Temperature
  • Atmospheric - Surface - Precipitation
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Platform keywords Global Change Master Directory (GCMD) Platform Keywords
  • Fixed Observation Stations
Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
  • Thermometers
  • Rain Gauges
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Continent > North America > United States Of America
Data Resolution keywords Global Change Master Directory (GCMD) Temporal Data Resolution Keywords
  • Monthly Climatology
Use 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.
Access 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.
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.
Lineage information for: dataset
Lineage Statement Data is derived from insitu observations archived at NCDC
Processing Steps
  • Please review documentation for more information
Source Datasets
  • The USHCN Version 2 Serial Monthly Dataset
    • The USHCN Version 2 Serial Monthly Dataset (download)
      USHCN Version 2 Data files are available on FTP
    • Description of Source: Input dataset to produce the US Climate Divisional Dataset (TCDD)
    • Temporal extent used: 1895-01-01 to Present
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - 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.
Acquisition Information (collection)
Instrument
  • TEMPERATURE LOGGERS
  • THERMOMETERS
  • RAIN GAUGES
Platform
  • METEOROLOGICAL STATIONS
Last Modified: 2023-06-23
For questions about the information on this page, please email: ncei.info@noaa.gov