An example of how GISS is nothing like the NCDC global data

Feb 1963 NCDC global land land mean + 1.27C compare with GISS

Feb 2014 NCDC global land land mean  + .23C - compare with GISS

GISS makes it look like Feb 1963 was much colder than February 2014.  The NCDC global data shows 1963 much warmer for the global land mean.

The two data analysis differ in some significant ways