June and July were pretty active, at least for the eastern/southern lakes and Ohio Valley
In Detroit, 7/4 featured numerous late-day hail cores & flash flooding across the area after temps surged to a near-record high of 101*F with mostly sunny skies. That was followed by an early morning squall line on 7/5 that produced widespread wind damage.
Then of course, there was the notorious 6/29 - 6/30 derecho that tracked from Chicago to DC.