There is disclosed a dormer vent covering device including a dormer vent cover and an attachment device. The dormer vent cover includes a face, wherein the face is sized to cover a portion of an opening of a dormer vent, and a lip extending substantially perpendicularly from a portion of an outer edge of the face, wherein the lip is shaped to correspond to an outer shape of the dormer vent. The attachment device is detachably attachable to both the dormer vent and the dormer vent cover to attach the dormer vent cover to the dormer vent.