Eric is a giant weenie. He's been saying for weeks now that IT'S ONLY A MATTER OF TIME before Mexican heat dome moves into SW U.S. and locks in..meanwhile, the Euro says the current heat there (which is not particularly noteworthy) is transient and this is next.
60 years of climate change will do that. Not sure anything approaching a 1964 result would be possible today. It's actually the coldest calendar year in PDX history, even colder than 1955 by about 0.4 degrees.
1964 was also at least moderately impacted by the Agung eruption, so it had a lot going for it.