To me taking the average of both stations is probably the best option. One gets a slight bump down, the other a slight bump up. Newark though is nearly always the hottest whereas NYC a lot of times, even though overgrown, still finishes temp wise in the middle.
Funny thing is people as you said use it, but like no one on the forum lives there. They really should use other stations. Its been an issue with temps and snow measuring forever, but no one cares, so I don't either.