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NOUS41 KWBC 141519
PNSWSH
Public Information Statement
National Weather Service Headquarters Washington DC
1120 AM EDT Thu Jul 14, 2011
TO: Subscribers:
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS Partners, Users, and Employees
FROM: Fiona Horsfall
Chief, Climate Services Division
SUBJECT: Change to New 1981-2010 Climate Normals
Effective August 1.
The NWS will incorporate the new 1981-2010 Climate Normals into
our climate text products on August 1. The products affected
will be:
Daily Climatological Report (CLI)
Monthly Climatological Report (CLM)
Quarterly Climatological Report (CLQ)
Seasonal Climatological Report (CLS)
Annual Climatological Report (CLA)
Preliminary Local Climatological Data Report (CF6)
Any product that has data that crosses the August 1
implementation date, such as the quarterly, seasonal and annual
Climatological Reports, will use the new 1981-2010 Climate
Normals for required calculations for the entire period.
Products issued prior to the change date will not be reissued
using the new climate Normals.
Climate Normals are calculated every 10 years and are an average
of 30 years of climate data. The calculations are done by The
National Climatic Data Center. More information can be found
at;
http://www.ncdc.noaa.gov/oa/climate/normals/usnormals.html
If you have any question or comments, please contact:
Jim Zdrojewski
Climate Data Program Analyst
Silver Spring, MD 20910
301-713-1970 x181
James.Zdrojewski@xxxxxxxx
National public information statements are online:
http://www.weather.gov/os/notif.htm
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