July 16 was a relatively cool day in 1936, averaging only 94 degrees, but US July 16 afternoon temperatures have been declining since the 19th century.
On this date in 1901, 100-degree temperatures spread from California to Maine, and it was 113 degrees in Oklahoma.
Read more at Real Climate Science
If you want the real historical July temperature anomalies, all you have to do is to click on the following link which shows NOAA/National Climate Data Center data.
https://www.ncdc.noaa.gov/cag/national/time-series/110/tavg/1/7/1895-2017?base_prd=true&firstbaseyear=1901&lastbaseyear=2000&trend=true&trend_base=10&firsttrendyear=1895&lasttrendyear=2017
As for Tony Heller’s fabricated charts, note that there is no on-chart reference (or link) as to the origin of the data. For that matter Tony Heller has a long history of fabricating data – including where he lives. (See http://www.durangobill.com/GwdLiars/GwdGlobalWarmingStoppedIn1998.html for details)