"Revised raw data"

“Mike McMillan (17:28:30) :

I’ve completed USHCN vs USHCN version 2 blink comparison charts for Wisconsin. As with the Illinois charts, the majority of stations had their raw data adjusted to show more warming by lowering the temperatures in the first half of the 20th century.

That brings the raw data more in line with the GISS homogenized versions. I haven’t blinked the original GISS with the new homogenized charts yet, but I’d bet a nickle they’ll show even more warming.

Wisconsin original USHCN raw / revised raw data –

Illinois original raw / revised raw –

From:  “USHCN – U.S. Historic Cimate Network


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