Someone can correct me if I'm wrong, but according to my numbers, the lowest 5-year combined seasonal snow totals at BWI would be 52.7", from the 1948-49 winter through the 1952-53 winter. If you take our last five winter seasons at BWI (Including the current season), the total is only 40.1". In other words, as long as BWI gets 12.5" or less of additional snow this season, they will break their 5-year futility record.
@RodneyS I'd be interested in DCA if you have it.