Where are you located in DC? I got down to 36.7 last night in NW, you didn’t get below 40. Luckily, it’s early Feb so we are in prime climo for these types of events. I would be far more worried about what you are referring to of this event was in March. Most of the models indicate heavy precipitation with cold air aloft creating an ideal situation for dynamic cooling. Most models show temps of 31-33 during the heavy snow.