NOAA's Climate Divisional Database (nCLIMDIV)

Metadata Updated: February 27, 2019

This dataset replaces the previous Time Bias Corrected Divisional Temperature-Precipitation Drought Index. The new divisional data set (nCLIMDIV) is based on the Global Historical Climatological Network-Daily (GHCN-D) and makes use of several improvements to the previous data set. For the input data, improvements include additional station networks, quality assurance reviews and temperature bias adjustments. Perhaps the most extensive improvement is to the computational approach, which now employs climatologically aided interpolation. This 5km grid based calculation nCLIMGRID helps to address topographic and network variability. This data set is primarily used by the National Oceanic and Atmospheric Administration (NOAA) National Climatic Data Center (NCDC) to issue State of the Climate Reports on a monthly basis. These reports summarize recent temperature and precipitation conditions and long-term trends at a variety of spatial scales, the smallest being the climate division level. Data at the climate division level are aggregated to compute statewide, regional and national snapshots of climate conditions. For CONUS, the period of record is from 1895-present. Derived quantities such as Standardized precipitation Index (SPI), Palmer Drought Indices (PDSI, PHDI, PMDI, and ZNDX) and degree days are also available for the CONUS sites.

In March 2015, data for thirteen Alaskan climate divisions were added to the nCLIMDIV data set. Data for the new Alaskan climate divisions begin in 1925 through the present and are included in all nCLIMDIV monthly updates. Alaskan climate data include the following elements for divisional and statewide coverage: average temperature, maximum temperature (highs), minimum temperature (lows), and precipitation. The Alaska nCLIMDIV data were created and updated using similar methodology as that for the CONUS, but with a different approach to establishing the underlying climatology. The Alaska data are built upon the 1971-2000 PRISM averages whereas the CONUS values utilize a base climatology derived from the nCLIMGRID data set.

As of November 2018, nClimDiv includes county data and additional inventory files.

Access & Use Information

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Metadata Date December 19, 2018
Metadata Created Date September 27, 2015
Metadata Updated Date February 27, 2019
Reference Date(s) March 1, 2014 (publication), March 15, 2015 (revision), November 15, 2018 (revision)
Frequency Of Update monthly

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

Divisional Average Temperature Ranks, January-December 2014

Additional Metadata

Resource Type Dataset
Metadata Date December 19, 2018
Metadata Created Date September 27, 2015
Metadata Updated Date February 27, 2019
Reference Date(s) March 1, 2014 (publication), March 15, 2015 (revision), November 15, 2018 (revision)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Cite as: Vose, Russell S.; Applequist, Scott; Squires, Mike; Durre, Imke; Menne, Matthew J.; Williams, Claude N., Jr.; Fenimore, Chris; Gleason, Karin; Arndt, Derek (2014): NOAA's Gridded Climate Divisional Dataset (CLIMDIV). [indicate subset used]. NOAA National Climatic Data Center. doi:10.7289/V5M32STR [access 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 -66.0
Bbox North Lat 71.5
Bbox South Lat 24.0
Bbox West Long -180.0
Coupled Resource
Frequency Of Update monthly
Graphic Preview Description Divisional Average Temperature Ranks, January-December 2014
Graphic Preview File
Graphic Preview Type GIF
Guid gov.noaa.ncdc:C00005
Harvest Object Id 32dfd80e-c473-469e-aa50-e6f971122583
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence Data is derived from all observations available at the time of data production.
Metadata Language
Metadata Type geospatial
Progress onGoing
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1895-01-01

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