July 11, 1954 was the hottest day on record in Colorado (114F) and in Boulder (104F) There was a huge area above 110F centered over Kansas, Nebraska, Oklahoma and Colorado. Three fourths of the US was over 90 degrees.
More than half of the US was in drought during July, 1954.
Today’s forecast maximum temperature in Boulder is 88 degrees. We haven’t had a day above 100F for five years, but in 1954 we had six days above 100F.