The U.S. has just observed the wettest meteorological winter in the 1895-2019 period of record. Partially to blame is historic warmer than normal oceans.
A combination of an intense jet stream flow coupled with an unusually warm Gulf of Mexico lead to an unusually intense tornado outbreak in the Southeast U.S. on March 3rd.
Using weekly gas population weight heating degree day anomalies the coldest weeks of the 2018-19 cold season occurred early (November) and late (March).