Two years ago during the scorching summer of 2012, July 1936 lost its place on the leaderboard and July 2012 became the hottest month on record in the United States. Now, as if by magic, and according to NOAA’s own data, July 1936 is now the hottest month on record again. The past, present, and future all seems to be “adjustable” in NOAA’s world. See the examples below.
The temperature adjustments story has been brewing for weeks principally due to the many posts at ‘RealScience’ but taken up by others, for example, Paul Homewood, see here and here. Judith Curry has a great post about it here, as does Anthony here.
Bruce at Sunshine Hours has been doing some unthreading, er plotting, and at my request, prepared some USHCN maps of Kansas, first May’s high temperatures.
I’ve annotated the plot, to include “zombie” weather station that have been closed for years, but still show “estimated” data from NOAA. Those marked NRF are “no report found”…typically meaning NOAA hasn’t gotten the data from the observer yet, which is often mailed in on paper B91 forms. It is interesting to note how NOAA has been changing the data, in most cases adjusting it higher, though in a couple of cases, lower.
Bruce also plotted some other maps of Kansas, for July 1936, and for July 2012. Note how in July 1936 the Tmax temperature are almost all adjusted cooler, and in 2012, most all Tmax temperatures are adjusted warmer. Click images for larger versions.
Whatever happened to just using actual measured data? There is no justification for this.
And, NOAA can’t even keep their story straight about July 1936 temperatures.
Click here to continue with the story.