I’m writing a formal paper to discuss the US temperature record, and am gathering figures for it.
Over the past century, daily maximum temperatures have plummeted in the US. They peaked in 1934.
Daily minimum temperatures have increased, and peaked in 1998.
There has been no trend in mean temperatures, with 2012 being the average warmest year.
As afternoon temperatures cool and nighttime temperatures warm, the diurnal temperature range in the US has dropped sharply.
The percent of days which reached 60F each year peaked in 1921, and has dropped over the past century.
The percent of days which reached 70F each year peaked in 1934, and has dropped over the past century.
The percent of days which reached 80F each year peaked in 1939, and has dropped over the past century.
The percent of days which reached 90F each year peaked in 1936, and has dropped over the past century.
The percent of days which reached 100F each year peaked in 1936, and has dropped over the past century.
The USHCN monthly raw data is very close to the monthly average of the daily data, and shows sharp cooling over the last century. The average downwards trend at all stations is -0.005 degrees F per year.
The adjusted monthly maximum temperatures from NOAA reverse the measured cooling trend and show warming. The average upwards adjusted trend is 0.008 degrees F per century. The average upwards adjustment is 0.013 degrees F per century, making for a signal to noise ratio of zero. No serious scientist or engineer would do what NOAA is doing to the US temperature record.
The reversal of the trend is accomplished via a spectacular hockey stick of data tampering, which massively cools the past and warms the present.
The largest component of this data tampering is simply making up fake data, which now comprises more than one third of the USHCN monthly adjusted temperature record.
NOAA adjustments increase the trend at 74% of stations, by an average of 0.024 degrees F. Adjustments reduce the trend at 26% of stations by an average of -0.017 degrees F.
Meanwhile, Zeke and Nick claim that adjustments reduce warming, and some skeptics eat their BS right up.
A good example of NOAA data tampering is at Canon City, Colorado where NOAA turns a zero trend into a sharp warming trend, by cooling the past about five degrees.
Measured
Reported after data tampering.
Details of the data tampering.
The bottom line is that the US temperature record published by NOAA is completely fake – and has nothing to do with climate or science. It is an affront to all civilized and intelligent people.
