Careful to differentiate between a temporary cold moment due to dynamics and a truly expensive cold airmass. The Feb 10, 2010 storm was cold under the very intense mid and upper level lows that passed right over us. But that storm mixed with rain/sleet at the start all the way to central MD and it was 34 despite 2 feet is snowcover the day before and 38 despite 3 feet the day after at BWI. The temps did drop into the low to mid 20s with a ferocious wind during the height but that was dynamics driven not indicative of an arctic airmass. You remove the snowcover and storms and that week would have had highs of 40-50 degrees.
ETA: 2003 had some true cold air masses but it was a moderate modoki nino with a once every 20 years type stable perfect pacific pattern. Yea that would work but it’s super rare and no chance in a Nina and not even a good bet in a nino.