Yeah the temperature aspect of winter is going to be broken after this last bit of cold gets flushed out....but unlike summer, so many in here use snowfall as the metric and not temps, so "winter" continues into March even though we've ended the below 0F threats and chances of a week straight well below freezing.
This year, early March looks pretty feeble on guidance, so it might work out from a snowfall standpoint too, but we'll see. Mar '56 was pretty unremarkable and slightly mild the first week and then all hell broke loose. Even Mar '97 was pretty mild the first week before flipping with multiple snow events and of course the 3/31-4/1 finale. Though that type of evolution is the exception and not the rule....you usually want to make hay in the first week to 10 days of March if it's going to be a big month.