Those who never look at the data never get to see things like this.
At this CDIAC site you can download the monthly raw and monthly mean temperature records. This is accomplished by merely checking TMEAN and TMEANRAW in the box on that page. It will then give you the link to a CSV file that can be downloaded an the data put into an Excel spreadsheet.
I then opened the CSV file and subtracted the raw data from the final data. I think people should see what the climatologists think of as good corrections to the data.
I did this tonight for Albany Texas. Here is the picture of the total correction, by month for this temperature station.
Looks like crap.