Jan to March of 2014 and Feb 2015 were incredibly cold out there. Saw a reading of -8 in Frederick county Va on my way to work one morning. I don’t recall if that was 2014 or 2015 but those two years had a lot of single digits and below zero readings. Probably the coldest winters since either 94 or 96. One more the temperature rose like 25 degrees between western Frederick county and eastern on my way into work (20 min drive). Single digits to 32x