Photo via Facebook from Baltimore.
There is a terrific interactive map of snow amounts here.
The most was at Glengary, WV with 40 inches.
NYC Central Park (official measuring site) had 26.8" which missed the record by 0.1 inches. JFK had 30.2 inches.
In Washington, there was a measurement failure at the official site at Reagan Airport. It appears the city had around 22-25 inches with nearby northwest suburbs receiving more than 30 inches.