Let’s start by examining the land temperature record for the continental US. This is the gold standard for two reasons; it comes from an amazing network of stations sprinkled throughout the country going back over a hundreds years, and it comes from teams of trained meteorologists responsible for taking reliable thermometer readings. And so what does it tell us about modern times? As you can clearly see from the trend line, it has never been as hot as it was in the late 30’s.
Or perhaps you prefer the adjusted temperature graph put out by NOAA. Gives