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Country or TerritoryStation NameWMO Station NumberNational Station Id NumberPeriodElement-Statistic Qualifier CodeStatistic DescriptionUnitJan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Annual NCDC Computed Value 
UNITED STATES OF AMERICAROANOKE/MUNICIPAL, VA72411004472851961-1990 Mean Monthly Valuecount9.7 8.0 4.6 1.1 .1 .0 .0 .0 .0 .3 2.8 7.0 33.6 33.6 
UNITED STATES OF AMERICABECKLEY/RALEIGH CO MEM AP WV72412004605821963-1990 Mean Monthly Valuecount17.5 14.7 10.6 4.4 .3 .0 .0 .0 -9797.911.3 7.1 14.0 69.9 69.9 
UNITED STATES OF AMERICACHARLESTON/KANAWHA ARPT WV72414004615701961-1990 Mean Monthly Valuecount14.7 12.0 7.7 2.6 .1 .0 .0 .0 .0 .6 4.7 11.1 53.5 53.5 
UNITED STATES OF AMERICAELKINS/RANDOLPH CO ARPT WV72417004627181962-1990 Mean Monthly Valuecount-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92
UNITED STATES OF AMERICACINCINNATI/GREATER CINCINNATI,KY72421001518551961-1990 Mean Monthly Valuecount14.3 12.2 7.7 2.2 .1 .0 .0 .0 .0 .3 4.6 11.0 52.4 52.4 
UNITED STATES OF AMERICALEXINGTON/BLUEGRASS FIELD KY72422001547461961-1990 Mean Monthly Valuecount12.0 9.8 5.6 1.4 -9797.91.0 .0 .0 .0 .2 3.2 9.1 41.3 41.3 
UNITED STATES OF AMERICALOUISVILLE/STANDIFORD FIELD KY72423001549541961-1990 Mean Monthly Valuecount11.3 9.5 5.1 1.2 -9797.91.0 .0 .0 .0 .1 3.0 8.3 38.5 38.5 
UNITED STATES OF AMERICAHUNTINGTON/TRI-STATE, WV72425004643931961-1990 Mean Monthly Valuecount13.9 11.3 7.1 1.8 .1 .0 .0 .0 .0 .3 4.1 10.4 49.0 49.0 
UNITED STATES OF AMERICACOLUMBUS WSO AP, OH72428003317861961-1990 Mean Monthly Valuecount16.3 13.6 9.5 3.0 .1 .0 .0 .0 -9797.91.7 5.6 13.9 62.7 62.7 
UNITED STATES OF AMERICADAYTON/INT'L AP, OH72429003320751961-1990 Mean Monthly Valuecount16.1 13.4 9.2 3.1 .1 .0 .0 .0 .0 .6 6.0 13.8 62.3 62.3 
UNITED STATES OF AMERICAEVANSVILLE/REGIONAL, IN72432001227381961-1990 Mean Monthly Valuecount11.2 8.9 5.0 .8 .0 .0 .0 .0 .0 .1 3.0 8.2 37.2 37.2 
UNITED STATES OF AMERICAST. LOUIS/LAMBERT, MO72434002374551961-1990 Mean Monthly Valuecount10.8 9.8 5.4 1.1 .0 .0 .0 .0 .0 .1 3.3 9.1 39.6 39.6 
UNITED STATES OF AMERICAINDIANAPOLIS/INT'L ARPT IN72438001242591961-1990 Mean Monthly Valuecount14.6 12.3 8.7 2.4 .1 .0 .0 .0 .0 .3 5.1 13.0 56.5 56.5 
UNITED STATES OF AMERICASPRINGFIELD/CAPITAL ARPT IL72439001181791961-1990 Mean Monthly Valuecount12.7 11.7 7.3 1.7 .1 .0 .0 .0 .0 .3 4.3 11.7 49.8 49.8 
UNITED STATES OF AMERICASPRINGFIELD/REGIONAL AP MO72440002379761961-1990 Mean Monthly Valuecount10.6 9.5 5.0 .9 .0 .0 .0 .0 .0 .2 3.4 8.6 38.2 38.2 
UNITED STATES OF AMERICACOLUMBIA/REGIONAL ARPT MO72445002317911969-1990 Mean Monthly Valuecount11.7 10.2 5.7 1.3 .0 .0 .0 .0 .0 .2 4.1 10.6 43.8 43.8 
UNITED STATES OF AMERICAKANSAS CITY/INTL ARPT MO72446002343581972-1990 Mean Monthly Valuecount9.9 8.3 4.7 1.2 .0 .0 .0 .0 .0 .3 4.2 9.3 37.9 37.9 
UNITED STATES OF AMERICAWICHITA/MID-CONTINENT ARPT KS72450001488301961-1990 Mean Monthly Valuecount8.9 7.1 4.3 .7 .0 .0 .0 .0 .0 .2 3.2 7.9 32.3 32.3 
UNITED STATES OF AMERICADODGE CITY/MUNICIPAL, KS72451001421641961-1990 Mean Monthly Valuecount8.6 7.5 6.0 1.4 .1 .0 .0 .0 .1 .6 4.1 8.1 36.5 36.5 
UNITED STATES OF AMERICATOPEKA/MUNICIPAL ARPT KS72456001481671961-1990 Mean Monthly Valuecount9.7 8.7 5.5 1.0 .0 .0 .0 .0 .0 .2 3.4 8.9 37.4 37.4 
UNITED STATES OF AMERICACONCORDIA/BLOSSER MUNI AP KS72458001417671962-1990 Mean Monthly Valuecount10.7 8.8 6.1 1.5 -9797.91.0 .0 .0 -9797.91.3 5.0 10.4 42.8 42.8 
UNITED STATES OF AMERICAALAMOSA/BERGMAN FIELD CO72462000501301965-1990 Mean Monthly Valuecount-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92
UNITED STATES OF AMERICAPUEBLO/MEMORIAL AP, CO72464000567401961-1990 Mean Monthly Valuecount7.8 8.1 7.8 3.1 .6 .0 .0 .0 .2 1.5 5.4 7.2 41.7 41.7 
UNITED STATES OF AMERICAGOODLAND/RENNER FIELD KS72465001431531961-1990 Mean Monthly Valuecount9.9 9.6 9.4 3.6 .5 .0 .0 .0 .3 1.9 6.5 9.1 50.8 50.8 
UNITED STATES OF AMERICACOLORADO SPRINGS/MUNICIPAL AP,CO72466000517781978-1989 Mean Monthly Valuecount-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92
UNITED STATES OF AMERICADENVER/STAPLETON INT'L AP CO72469000522201961-1990 Mean Monthly Valuecount9.1 9.6 11.4 6.4 1.7 -9797.91.0 .0 1.0 3.4 7.7 9.6 59.9 59.9 
UNITED STATES OF AMERICAGRAND JUNCTION/WALKER FIELD CO72476000534881961-1990 Mean Monthly Valuecount10.2 6.9 6.8 3.2 .6 .0 .0 .0 .1 1.2 4.6 9.4 43.0 43.0 
UNITED STATES OF AMERICABISHOP/ARPT CA72480000408221965-1990 Mean Monthly Valuecount-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92-9999.92
UNITED STATES OF AMERICASACRAMENTO/EXECUTIVE ARPT CA72483000476301961-1990 Mean Monthly Valuecount.1 -9797.91.0 .0 .0 .0 .0 .0 .0 .0 .0 .2 .3 0.3 
UNITED STATES OF AMERICAELY/YELLAND, NV72486002626311961-1990 Mean Monthly Valuecount10.1 9.9 12.3 8.7 4.2 .5 .0 .0 .8 3.3 7.1 10.8 67.7 67.7 
UNITED STATES OF AMERICARENO/INTL, NV72488002667791961-1990 Mean Monthly Valuecount7.6 6.5 7.8 4.9 1.8 .0 .0 .0 .3 1.0 3.9 7.5 41.3 41.3 
UNITED STATES OF AMERICASTOCKTON, CA72492000485581961-1990 Mean Monthly Valuecount.0 .1 .1 .1 .0 .0 .0 .0 .0 .0 .0 .2 .5 0.5 
UNITED STATES OF AMERICASAN FRANCISCO/INTERNATIONAL A,CA72494000477691961-1990 Mean Monthly Valuecount.2 .1 .0 .0 .0 .0 .0 .0 .0 .0 .0 .2 .5 0.5 
UNITED STATES OF AMERICANEWARK/INT'L ARPT NJ72502002860261961-1990 Mean Monthly Valuecount10.4 9.0 6.1 1.3 -9797.91.0 .0 .0 .0 .2 2.1 8.1 37.2 37.2 
UNITED STATES OF AMERICANEW YORK/LAGUARDIA ARPT NY72503003058111961-1990 Mean Monthly Valuecount9.7 8.7 6.1 1.2 -9797.91.0 .0 .0 .0 .1 1.9 8.0 35.7 35.7 
UNITED STATES OF AMERICABRIDGEPORT/SIKORSKY MEMORIAL CT72504000608061961-1990 Mean Monthly Valuecount9.5 9.8 7.2 1.7 .1 .0 .0 .0 .0 .4 3.0 9.1 40.8 40.8 
UNITED STATES OF AMERICAPROVIDENCE/GREEN STATE, RI72507003766981961-1990 Mean Monthly Valuecount11.2 9.8 7.8 2.3 .1 .0 .0 .0 .0 .3 2.9 10.2 44.6 44.6 
UNITED STATES OF AMERICAHARTFORD/BRADLEY INT'L ARPT CT72508000634561961-1990 Mean Monthly Valuecount13.5 11.4 9.2 2.9 .1 .0 .0 .0 .0 .4 4.0 13.1 54.6 54.6 
UNITED STATES OF AMERICABOSTON/LOGAN INT'L AIRPORT, MA72509001907701961-1990 Mean Monthly Valuecount11.8 10.7 8.5 2.8 .1 .0 .0 .0 .0 .4 3.3 11.4 49.0 49.0 
UNITED STATES OF AMERICAWILKES-BARRE-SCRANTON, PA72513003697051964-1990 Mean Monthly Valuecount20.2 16.5 13.1 4.5 .3 .0 .0 .0 .0 1.0 7.8 16.9 80.3 80.3 
UNITED STATES OF AMERICAWILLIAMSPORT, PA72514003697281961-1990 Mean Monthly Valuecount18.7 16.1 11.0 3.6 .2 .0 .0 .0 .0 .8 7.0 16.2 73.6 73.6 
UNITED STATES OF AMERICABINGHAMTON/EDWIN A LINK FIELD,NY72515003006871961-1990 Mean Monthly Valuecount24.7 20.3 17.6 8.3 1.3 .0 .0 .0 .1 3.8 12.8 22.8 111.7 111.7 
UNITED STATES OF AMERICAALLENTOWN/A.-BETHLEHEM, PA72517003601061961-1990 Mean Monthly Valuecount13.3 11.1 7.9 2.3 .1 .0 .0 .0 .0 .3 4.1 11.2 50.3 50.3 
UNITED STATES OF AMERICAALBANY/ALBANY COUNTY, NY72518003000421961-1990 Mean Monthly Valuecount19.2 15.3 12.5 4.4 .4 .0 .0 .0 .0 .6 7.2 17.4 77.0 77.0 
UNITED STATES OF AMERICASYRACUSE/HANCOCK INT'L ARPT NY72519003083831961-1990 Mean Monthly Valuecount24.2 19.6 15.7 6.1 .7 .0 .0 .0 .0 1.9 10.3 22.1 100.6 100.6 
UNITED STATES OF AMERICAPITTSBURGH/GR PITTSBURGH INTL,PA72520003669931961-1990 Mean Monthly Valuecount19.8 16.6 12.2 5.0 .3 .0 .0 .0 .0 1.4 8.0 17.5 80.8 80.8 
UNITED STATES OF AMERICAAKRON/AKRON-CANTON REGIONAL, OH72521003300581961-1990 Mean Monthly Valuecount19.5 16.6 12.5 5.2 .5 .0 .0 .0 .0 2.0 8.3 18.0 82.6 82.6 
UNITED STATES OF AMERICACLEVELAND/HOPKINS INTL AP, OH72524003316571961-1990 Mean Monthly Valuecount20.9 17.2 12.9 5.0 .4 .0 .0 .0 .0 1.4 7.9 18.2 83.9 83.9 
UNITED STATES OF AMERICAYOUNGSTOWN/WSO AP OH72525003394061961-1990 Mean Monthly Valuecount21.0 18.1 13.9 5.6 .6 .0 .0 .0 -9797.912.0 9.4 19.6 90.2 90.2 
UNITED STATES OF AMERICAERIE/INT'L ARPT PA72526003626821961-1990 Mean Monthly Valuecount22.6 19.2 14.3 5.5 .4 .0 .0 .0 .0 1.8 9.4 20.1 93.3 93.3 

Footnotes

1 - code for value > 0.0 but < the smallest unit at the archived precision
2 - code for missing value
Source

World Meteorological Organization Standard Normals

Source:  World Meteorological Organization

WMO data provide the basis for better understanding the climatology of severe weather and extreme events such as tropical cyclones, El Niño, floods, heat waves, cold waves, droughts and other natural hazards, contributing to saving both lives and property, and improving our understanding and monitoring of the climate system and environment. WMO has drawn attention to issues of major concern, such as ozone layer depletion, global warming, climate change and diminishing water resources.

WMO enhances the application of meteorological and hydrological information for the security and well-being of society. Such information is crucial for addressing major challenges such as food security, water resources management, reduction of pollution, decision-making related to the health sector, transport, tourism among others.

WMO provides guidelines to use procedures for analysing climate data for climate change purposes as well as for other applications. This includes, inter-alia, analysis of extremes in a changing climate, the role of climatological normals in a changing climate and climate data homogenisation. Description of processes, methodologies and practices in climatology are provided within a mandatory publication representing the WMO guide to climatological practices.

WMO defines climatological standard normals as "averages of climatological data computed for the following consecutive periods of 30 years: January 1, 1901 to December 31, 1930, January 1, 1931 to December 31, 1960, etc." (WMO, 1984).The latest global standard normals period is 1961-1990. The next standard normals periode is January 1991 – December 2020.
Last update in UNdata: 2010/07/14
Next update in UNdata: To be confirmed