US August 4th afternoon temperatures peaked in 1930, and have been declining ever since.
On August 4th, 1930 and 1947 huge swaths of the US were over 100 degrees.
04 Aug 1930, Page 1 – Moberly Monitor-Index at Newspapers.com
via The Deplorable Climate Science Blog
August 4, 2018 at 05:04AM
Iowa Climate Science Education 