GISS has recently demoted 1934 from the #1 spot.
Fortunately, NOAA has archived the original un-adjusted records. The entire contiguous US had temperatures over 100º, and almost every state was far above normal. The midwest was seven degrees above normal. New London, Minnesota recorded 108º.
http://docs.lib.noaa.gov/rescue/mwr/062/mwr-062-06-0212.pdf
