One of the best lightning displays I think I saw was I want to say April of 2002...though it may have been May. It happened on a Sunday. I was in New Britain at my grandparents there and we had a nasty storm roll through during the afternoon which produced 1.5" hail (still largest hail I've seen). Then back in West Hartford that night, we had a second round...and the lighting with this was insane...just non stop flashing as the storms approached and lots of CGs and loud thunder.
There was one too (I can't even remember the year but I think it was August. Had to be summer of 2007 I think). My friend came down from New Hampshire randomly and we drove around the part of West Hartford towards the Reservoir where its elevated and the amount of CGs...that was actually scary stuff. It was just like gunshot sounds. Literally was like the CGs were striking next to us.