After adjustments, USHCN shows a strong warming trend in New York. They achieve this by massively cooling the past. All temperatures prior to 2000 are cooled as much as three degrees. The older a temperature record is, the more it has been tampered with. USHCN is cooling the past, at a rate of about two degrees per century.
We know from studies published on the GISS web site, that there has been a huge UHI impact in New York – up to 14F during summer nights.
Because of this large UHI effect, the USHCN adjustments should do the exact opposite of what they are doing. Recent temperatures should be adjusted downwards by several degrees, and older temperatures should be left alone.
The people in charge are defrauding the public.