Temperatures hit 1 degree early Sunday morning at Baltimore-Washington International Thurgood Marshall Airport, breaking a four-year-old record low.
The old record for Jan. 7 in Baltimore was 3 degrees.
The new mark capped off a streak of unusual cold that reached a crescendo this weekend.
Baltimore temperatures fell to 7 degrees early Saturday morning, missing a record set in 1904 by 2 degrees. Saturday afternoon, temperatures peaked at 18 degrees at BWI, also 2 degrees from a record for Jan. 6 in Baltimore, set in 1912.
Factoring in wind chills, it felt as cold as 16 degrees below zero Saturday.
Wind chills around the region early Saturday morning included 16 below in Westminster, 15 below in Park Heights, 13 below in Carney, 11 below in Columbia and 10 below at Baltimore-Washington International Thurgood Marshall Airport, according to the National Weather Service.
Starting Sunday afternoon, temperatures are expected to warm out of record territory, but slowly. Highs are forecast in the lower 20s Sunday — a level that is on par with normal lows for this time of year, but 5-10 degrees above record cold.
On Monday, temperatures could rise a few degrees above freezing for the first time in the new year and only the second time in two weeks.
Temperatures briefly hit 33 degrees Dec. 29 at BWI, the region’s point of record. Otherwise, temperatures have stayed at or below freezing since Dec. 27.
Highs in the 40s are forecast by Tuesday and in the 50s by Thursday.