It was tough to measure but it avg 9" - 11" outside of snow drifts or bare ground areas. So I call it 10.5" matching the closest official place at LGA.
Around 8" is believable in the Park to me. For a while radar kept showing moderate snow bands not getting past a line from about Westchester sound shore areas, middle of the Bx, western Qns down to parts of BK. Those higher totals north of Midtown into the Bronx etc are more ENE or NE, not just North. Areas near the Hudson in NJ look comparable to Central Park, and places north on the Hudson side of Westchester County a little less.