According to NOAA, the area of the US experiencing extreme maximum summer temperatures has greatly increased over the past fifty years.
“The sum of (a) percentage of the United States with maximum temperatures much below normal and (b) percentage of the United States with maximum temperatures much above normal.”
U.S. Climate Extremes Index (CEI) | Extremes | National Centers for Environmental Information (NCEI)
According to NOAA, the past decade has been the hottest on record.
Their own data shows the exact opposite.
The National Climate Assessment also shows the exact opposite.
Temperature Changes in the United States – Climate Science Special Report
The 1930s were much hotter than recent years. There is no comparison.