1. Your link is broken.
2. Yes, the summer of 1934 was very hot in the central contiguous U.S.
And the summer of 1936 was very hot in the central contiguous U.S. and western Russia.
And the summer of 1938 was very hot in western Russia.

Those records have been broken now, around the world. Feel free to generate your own maps.
https://data.giss.nasa.gov/gistemp/maps/