Except it hasn't been cool, it's been one of the hottest starts to summer in the lifetime of most of the posters here. The "refreshing" crowd is mostly trolling or revisionist history.
This is in advance of a significant heat wave that looks to last through Tuesday...
Cleveland - ninth warmest to date, less than a degree from second place. Since 1952, only 2005 & 2012 have been warmer.
Chicago - 11th hottest start to summer on record. Since 1971, only 2012 & 2020 have been hotter. Literally one of the hottest summers in the lifetime of that troll @A-L-E-Kbut we're supposed to pretend it's nice and refreshing. Midway (KMDW) even hotter at 75.6F.
Some other climate sites with long PORs. Many of these sites have multiple recent years higher, so prior to 2010, a lot of these rankings would have been several spots higher.
Detroit: 20th warmest
Akron/Canton: 13th warmest
Mansfield, Ohio: 13th warmest
Toledo: 19th warmest
Lansing, Michigan: 24th warmest [records date to 1863]
Saginaw, Michigan: 14th warmest
Columbus, Ohio: 16th warmest [since 1949, only 1991, 1999, 2012 & 2020 hotter]
Milwaukee: 14th warmest
Rockford, IL: 13th warmest
The Toronto crowd keeps saying it's not been too bad, but if we look at the data from the eastern Lakes region, we can see it's one of the hottest summers ever observed - certainly in recent memory.
Buffalo, New York
Erie, Pennsylvania
Wheeling, West Virginia
Pittsburgh, Pennsylvania