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U.S. Monthly Climate Normals (1981-2010)

The U.S. Monthly Climate Normals for 1981 to 2010 are 30-year averages of meteorological parameters for thousands of U.S. stations located across the 50 states, as well as U.S. territories, commonwealths, the Compact of Free Association nations, and one station in Canada. NOAA Climate Normals are a large suite of data products that provide users with many tools to understand typical climate conditions for thousands of locations across the United States. As many NWS stations as possible are used, including those from the NWS Cooperative Observer Program (COOP) Network as well as some additional stations that have a Weather Bureau Army-Navy (WBAN) station identification number, including stations from the Climate Reference Network (CRN). The comprehensive U.S. Climate Normals dataset includes various derived products including daily air temperature normals (including maximum and minimum temperature normal, heating and cooling degree day normal, and others), precipitation normals (including snowfall and snow depth, percentiles, frequencies and other), and hourly normals (all normal derived from hourly data including temperature, dew point, heat index, wind chill, wind, cloudiness, heating and cooling degree hours, pressure normals). In addition to the standard set of normals, users also can find "agricultural normals", which are used in many industries, including but not limited to construction, architecture, pest control, etc. These supplemental "agricultural normals" include frost-freeze date probabilities, growing degree day normals, probabilities of reaching minimum temperature thresholds, and growing season length normals. Users can access the data either by product or by station. Included in the dataset is extensive documentation to describe station metadata, filename descriptions, and methodology of producing the data. All data utilized in the computation of the 1981-2010 Climate Normals were taken from the ISD Lite (a subset of derived Integrated Surface Data), the Global Historical Climatology Network-Daily dataset, and standardized monthly temperature data (COOP). These source datasets (including intermediate datasets used in the computation of products) are also archived at the NOAA NCDC.

Data and Resources

Metadata Source

Harvested from NOAA CSW Harvest Source

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About this Dataset

Resource TypeDataset
Metadata DateApr 24, 2017
Metadata CreatedSep 26, 2015
Metadata ModifiedFeb 08, 2018
Reference Date(s)Jul 01, 2011 (publication)
Responsible PartyDOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (pointOfContact)
Access Constraints["Users must cite this dataset as: Anthony Arguez, Imke Durre, Scott Applequist, Mike Squires, Russell Vose, Xungang Yin, and Rocky Bilotta (2010). NOAA's U.S. Climate Normals (1981-2010). [indicate subset used]. NOAA National Centers for Environmental Information. DOI:10.7289/V5PN93JP [access date].", "NCEI cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NCEI makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. 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."]
Bbox East Long-65.0
Bbox North Lat72.0
Bbox South Lat15.0
Bbox West Long172.0
Coupled Resource
Frequency Of UpdateasNeeded
Graphic Preview DescriptionNOAA 1981-2010 U.S. Climate Normals
Graphic Preview File
Graphic Preview TypeJPEG
Harvest Object Idb36accaa-7959-437b-b5ba-e7d61e72263c
Harvest Source Id2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source TitleNOAA CSW Harvest Source
Metadata Language
Metadata Typegeospatial
Spatial{"type": "Polygon", "coordinates": [[[172.0, 15.0], [-65.0, 15.0], [-65.0, 72.0], [172.0, 72.0], [172.0, 15.0]]]}
Spatial Data Service Type
Spatial Reference System
Spatial Harvester
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