Global Historical Climatology Network - Monthly (GHCN-M), Version 2

The Global Historical Climatology Network Monthly (GHCN-M) Version 2 dataset created by the NCDC contains historical temperature, precipitation, and pressure data for thousands of land stations worldwide. The period of record varies from station to station, with several thousand extending back to 1950 and several hundred being updated monthly. Both historical and near-real-time GHCN-M data undergo rigorous quality assurance reviews. These reviews include pre-processing checks on source data, time series checks that identify spurious changes in the mean and variance, spatial comparisons that verify the accuracy of the climatological mean and the seasonal cycle, and neighbor checks that identify outliers from both a temporal and a spatial perspective.

Data and Resources

Field Value
accessLevel public
accrualPeriodicity R/P1D
bureauCode {006:48}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier gov.noaa.ncdc:C00835
language {en-US}
modified 1997-01-01
old-spatial {"type": "Polygon", "coordinates": [[[-180.0, 90.0], [180.0, 90.0], [180.0, -90.0], [-180.0, -90.0], [-180.0, 90.0]]]}
programCode {006:059}
publisher DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
resource-type Dataset
source_datajson_identifier true
source_hash 3e5844f69bcf113e591d374249aad671de5d6eb5
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-180.0, 90.0], [180.0, 90.0], [180.0, -90.0], [-180.0, -90.0], [-180.0, 90.0]]]}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • barometers
  • ckan
  • earth-science-atmosphere-atmospheric-pressure-sea-level-pressure
  • earth-science-atmosphere-atmospheric-temperature-air-temperature
  • earth-science-atmosphere-atmospheric-temperature-maximum-minimum-temperature
  • earth-science-atmosphere-atmospheric-temperature-surface-air-temperature
  • earth-science-atmosphere-precipitation-precipitation-amount
  • geo
  • geographic-region-global
  • geoss
  • meteorological-stations
  • national
  • north-america
  • rain-gauges
  • thermometers
  • united-states
  • vertical-location-land-surface
isopen False
license_id notspecified
license_title License not specified
maintainer Jay Lawrimore
maintainer_email ncdc.orders@noaa.gov
metadata_created 2025-11-22T22:02:07.016270
metadata_modified 2025-11-22T22:02:07.016274
notes The Global Historical Climatology Network Monthly (GHCN-M) Version 2 dataset created by the NCDC contains historical temperature, precipitation, and pressure data for thousands of land stations worldwide. The period of record varies from station to station, with several thousand extending back to 1950 and several hundred being updated monthly. Both historical and near-real-time GHCN-M data undergo rigorous quality assurance reviews. These reviews include pre-processing checks on source data, time series checks that identify spurious changes in the mean and variance, spatial comparisons that verify the accuracy of the climatological mean and the seasonal cycle, and neighbor checks that identify outliers from both a temporal and a spatial perspective.
num_resources 2
num_tags 19
title Global Historical Climatology Network - Monthly (GHCN-M), Version 2