U.S. Daily Climate Normals (1981-2010)
Normals Daily
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The U.S. Daily 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). 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.
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].
- doi:10.7289/V5PN93JP
- NCEI DSI 9641_01
- gov.noaa.ncdc:C00823
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Distributor | Customer Engagement Branch DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce 1-828-271-4800 ncei.orders@noaa.gov |
Dataset Point of Contact | Customer Engagement Branch DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce 1-828-271-4800 ncei.orders@noaa.gov |
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Digital table - digital representation of facts or figures systematically displayed,
especially in columns |
Dataset Progress Status | Complete |
Data Update Frequency: | As needed |
Purpose: | Climate Normals are a suite of products that provide users with the means to understand typical climate conditions for thousands of locations across the United States. These Normals are intended to be used for applications requiring a daily timescale. |
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Time Period: | 1981-01-01 to 2010-12-31 |
Spatial Bounding Box Coordinates: |
N: 72.0
S: 15.0
E: -65.0
W: 172.0
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Lineage Statement | NOAA's 1981-2010 Climate Normals are the newest iteration of the U.S. Climate Normals. Though previous versions of the normals are still available from the archive, the 1981-2010 Climate Normals should be used for all current applications. Computation of the NOAA Climate Normals is in accordance with the recommendation of the World Meteorological Organization (WMO), of which the United States is a member. While the WMO mandates each member nation to compute 30-year averages of meteorological quantities at least every 30 years (1931 - 1960, 1961 - 1990, 1991 - 2020, etc.), the WMO recommends a decadal update, in part to incorporate newer weather stations. Further, the NOAA NCDC has a responsibility to fulfill the mandate of Congress "... to establish and record the climatic conditions of the United States." This responsibility stems from a provision of the Organic Act of October 1, 1890, which established the Weather Bureau as a civilian agency (15 U.S.C. 311). |
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Last Modified: 2016-05-05
For questions about the information on this page, please email:
ncdc.metadata@noaa.gov