It was late March and 10". Regardless of duration it was impressive. Possibly the latest 10" storm on record, so record setting for you.
March '18 had 12.3" (with that storm), '17 had 9.7", '15 had 9", '13 had 15.2", your record warm 2012 had 6" of snow. So, in the last decade we had 4 Marchs with above average snow, a few that are just a few inches below average, and even less with almost no snow. So, Winter does not just abruptly end every year, in fact it feels as if it frequently drags into March more often than not. You need to stop expecting record events in every month and every season.