White Oak in the DMV Climate
White oak is the species we put into DMV kitchens, and it is the one we recommend when a house runs humid in August without much help from the HVAC system. It is not a licence to skip the protocol. We still meter the subfloor and the boards, acclimate in the room, and set expansion gaps for the widest condition rather than the average one, and on a 7 inch plank we do all of that more carefully, not less.
That protocol is the same whether the floor is going into a Bethesda colonial, a Washington DC rowhouse, or a new build in Arlington. It is described in full on our hardwood installation page.