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1981-2010 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 in Asheville, NC. More information can be found at:

The new 1981-2010 climate normals will be incorporated into our climate text products. The products that will be affected are shown below. Any product that has data that crosses the August 1 implementation date, will use the new 1981-2010 climate normals. Products issued prior to the change date will not be reissued using the new climate normals.
  • Daily Climatological Report (CLI)
  • Monthly Climatological Report (CLM)
  • Seasonal Climatological Report (CLS)
  • Annual Climatological Report (CLA)
  • Preliminary Local Climatological Report (CF6)

Raleigh-Durham (RDU) 1981-2010 Climate Normals

Greensboro Piedmont Triad (GSO) 1981-2010 Climate Normals

National Weather Service
Raleigh Forecast Office
1005 Capability Drive, Suite 300
Centennial Campus
Raleigh, North Carolina 27606-5226
(919) 515-8209
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Page Last Modified: 01 August 2011 17:44:53 UTC
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