They show that perhaps 50 % of the US was hot in 1936.
Sadly for the climate liars at the EPA, the US Weather Bureau actually kept records of these things at the time. Almost the entire US was overheated during the summer of 1936.
http://docs.lib.noaa.gov/rescue/mwr/064/mwr-064-07-c1.pdf
docs.lib.noaa.gov/rescue/mwr/064/mwr-064-08-c1.pdf
But it gets worse. The EPA shows that just over 10% of the US was hot in the summer of 1937, when in fact it was closer to 90%.











