NOAA, in response to criticism about the placement of weather stations, and the resulting "need" to "adjust" the data to compensate, installed over 100 new weather stations throughout the US. These sites were established in sites that were not only described as pristine, but also would not see any development for the next 50-100 years.
Article: America’s Most Advanced Climate Station Data Shows US In A 10-Year Cooling Trend
NOAA'S online publication: National Temperature Index
Over a 10+ year period, a very slight cooling trend is in evidence. This contradicts other NOAA data sets for the US (ie, the ones that are being "adjusted".)
The "adjusted" data shows that 2014 was one of the hottest years, overall. I know is an "apple and oranges" comparision. Or maybe a "Red Delicious" and "Fuji" apple comparision. But if you go to a store and find all the Fuji apples are mislabeled and are actually Granny Smith's, you have a right to be suspicious of the Red Delicious apples.