I measured 4.6 about 5 miles to the east of JFK's 4.2 so that is one number I can vouch for. Not sure about the other 2, a 4:1 snow to liquid ratio seems suspect lol.
Also, add this in, JFK didn't change over completely to snow until 6:15, I actually woke up when the last sleet pellets were falling right around 6:08 or so. And there was only a coating of snow and sleet on the ground here until about 7 AM when Central Park already had an inch and a half on the ground and that's when the heavier bands moved in for us. So I guess we somehow caught up to them and then passed them and ended up with an inch to an inch and a half more than them lol.