USHCN 2.5 – 1998 Keeps Getting Warmer

This is another post on USHCN warming. You can read more here.

USHCN puts out a monthly dataset every day. For the last month or so I was using the data I downloaded on on 20140509. I have been using the Final tavg data.

Today I downloaded the 20140621 version from here: ftp://ftp.ncdc.noaa.gov/pub/data/ushcn/v2.5

I thought … why not map both sets and compare the average temperature for the USA in Jan 1998 between the two sets of data.

In the legend I placed the count of Real versus Estimated and the average.

I was shocked. They are still warming 1998!

On May 9 the mean of the Estimated data was 2.5C and the mean of the Real Data was 1.74 … which is a .76C spread.

On June 21 the mean of the Estimated data was 2.72C and the mean of the Real Data was 1.7 … which is a 1.02C spread.

OMG. They keep changing the data. And they are still warming 1998!!!

 

USHCN v2.5.0.20140509 Final USA January 1998 Estimated vs Not Estimated

USHCN v2.5.0.20140621 Final USA January 1998 Estimated vs Not Estimated

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