The area and duration of heatwaves in the US during June used to be much higher prior to 60 years ago. One hundred degree days during June were more than twice as common during the 1930’s as they are now, with 1933, 1936, 1934, 1954, 1911 and 1916 being the hottest years.
Almost the entire US was far above normal during June 1933 – with parts of the Dakotas being an incredible 12 degrees above normal.
This is, of course, the exact opposite of what you hear from government climate scientists, who are paid to lie about the climate and tamper with data.
Read more at Real Climate Science