21" in North Jersey. Tackled the storm in phases, so it did not overwhelm my mid-range snowblower. Cleaned-up today and took out the roof rake for the second time since moving to NJ from NH to be safe. Went sledding today with the kids and the schools are open tomorrow.
NYC built their plan around he national weather service, which blew the forecast. Went from 6" to 12" the day before to 20" to 30" the day of forcing the city to shut down at 2:30 or so. Glad it was on a Saturday as a lot of people would have been stuck int he City or in transit if this happened on a weekday.
PS - The same national weather service has sunny skies for this Thursday and Friday. The local weather blogger by me who nailed this storm (and Sandy) says there is a 70% chance of a repeat of Saturday's storms on Thursday and Friday; but, the storm will be a bit warmer and will move a lot faster, so just 6" to 12".