Try Montreal in July. It's an island, so it's really damp and it's similar in the small towns and cities on its south shore. But I think it feels worse than it seem because the temperature swing in a year is insane: some days in the depth of winter, it goes down to -20F, and it can kick up around 95F during the summer 3-4 days at a time. You go from feeling like a sunny 45F in spring is comfortable for shorts and t-shirts to wearing a coat at 55F in the fall.
But, yeah, the humidity is really heavy in Montreal. It's you sweat but never dry heavy fairly often.
At least it's not like Europe last month. Jesus those guys who baking on their patios for weeks.