There are 824 GHCN HCN stations which have been continuously active since at least 1920, The graph below shows how many of them set their all-time record maximum each year. As you can see, the US used to be much hotter, and the summer of 1936 was by far the hottest summer.
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If it were 1936, I would have been concerned about catastrophic warming. Why didn’t Roosevelt use climate science as an excuse for a totalitarian takeover? Come to think of it, he may have had that in mind when he tried to “pack” the Supreme Court.