A vent/drain cover for an electronics enclosure includes a cover body defining an axis and a surface with a first wall protruding from the surface in a direction and a second wall protruding from the surface in the same direction but displaced radially from the first wall. The first wall has a first channel formed therein that is defined by a portion of the first wall that does not extend as far from the surface as the balance of the first wall. The second wall has a second channel defined by a portion of the second wall that does not extend as far from the surface as the balance of the second wall, the first channel being circumferentially offset from the second channel. Electronics enclosures and methods of venting electronics assemblies are also described.