Local bottom temps range from mid 30s in Winter and early Spring to 60s in August/Sept.
No lead.
Just for the sake of completeness, that's with double 119s? And what are the buoyancy characteristics of those, when empty? I know that different 100s have pretty different buoyancy, but I don't know anything about 119s and if there are different ones out there.
Regardless, that seems pretty impressive in mid-30s F water. Assuming you're not just talking about 10 minute dips or something. I'm starting to think you must be pretty dense. LOL