yeah in the past I always looked at President's Day as the end of anything that would be long lasting on the ground or even come at all. But the last few years have seen a March resurgence in snows and even snowpack (last year we had 10 inches and it hung around for close to a week)
almost impossible for ZR to accrete on the streets of NYC unless it's been bitter cold for days--ground is still generally warm this time of year as well.
don't worry the rain will wash it away. interesting NYC still uses sand, the state of CT banned it about 10 years ago (local towns can use it if they wish)
north of NYC (let's say 287) will do the best-Euro has those areas with 2-3 inches of snow then sleet and ZR on top. By the time it nudges above 32, the storm is over. Some areas, such as DXR and BDR and HPN could be above 10 inches for seasonal snowfall by then. Arctic cold shot follows.