USHCN daily data : us.txt.gz
GISS US: data data.giss.nasa.gov/gistemp/graphs_v3/Fig.D.txt
Current NCDC data : CONTIGUOUS UNITED STATES Climate Summary
The graph above plots published GISS US temperature anomalies, minus the difference between published USHCN temperatures and their raw data (scaled for centigrade of course.)
GISS is based on USHCN, and without their adjustments there is no warming trend since at least 1895.