New normals for weather forecasting, economic models

I always wondered when they were going to do this; so now they are; the National Climate Data Center is redefining average (also called normal) temperatures, to better characterize weather based on comparison to them.

Does that make sense?

Climate Shifts Changing New Weather "Normals"

The "new normals" will update the averages for temperatures, rainfall and snow. A climate normal bases itself on the weather patterns of a particular region over a 30-year period. Every decade, in accordance with international agreements, the National Climate Data Center releases new temperature and rain and snowfall normals for 10,000 regions across the country. ...

The current normals rely on weather patterns that occurred between 1971 and 2000. The new normals, which will be released later in the year, will drop the 1970s -- a decade marked by cool temperatures -- and add the hottest recorded decade in history, the 2000s.

The one thing that I think this is bad for is that cold snaps will now be even colder than normal, and heat waves will be less hotter than normal. More fodder for the climate change deniers.