Disagree. He didn't say it was going to be cold. He said it was going to be a relief from nightly lows in the '70s. Seems to me to be the definition of relief.
I feel kind of bad for those wanting a hot summer. Just two years ago Boston had 9 days of 90 or above in July. It even hit a hundred. This year none! With the extended looking colder by the minute that ain't happening this year.
Good article on it. It's a pay site but you may get one free.
https://www.bostonglobe.com/2024/07/02/science/massachusetts-berkshires-culverts-bridges-stormwater-climate-change/