Being a state of the art system, it is well sited, and requires no adjustments and the data is well spatially distributed by design so that it is representative of the CONUS. Here’s the current plot (click to enlarge):This is huge. Each station is rural, so there's no Urban Heat Island effect driving the temperature higher. Each station is automated, so there's no need for adjustments because readings were taken at a different time of day. All stations use modern, identical equipment so you're not comparing apples and oranges. Station siting covers the entire Continental USA, so there's no need for "gridding" and "infilling" (translation: "making data up").
Each (small) number in blue represents one of the NCDC operated U.S. Climate Reference Network stations in the CONUS that we use.
In other words, there's no need to adjust the data, ever. Given the strange warming effect of the adjustments, this is perhaps the most important thing that's happened in Climate Science since the use of Satellite monitoring of the lower troposphere. And this is ground based measurement, so it will complement the satellite data.
Well done to NOAA for this effort. Now if they'd use this data in their "State Of The Climate" report rather than the old, bad, adjusted data.