Akron, OH: 64° (broke record of 63° set in 1937)
Albany: 60° (broke record of 57° set in 1930)
Atlantic City: 68° (broke record of 60° set in 2007)
Baltimore: 70° (broke record of 69° set in 1930)
Bangor: 55° (broke the record of 50° set in 1956)
Beckley, WV: 66° (broke record of 64° set in 1965)
Binghamton: 63° (tied record set in 1998)
Boston: 67° (broke record of 64° set in 1930)
Bridgeport, CT: 57° (tied record set in 1949)
Buffalo: 66° (broke record of 59° set in 1965)
Burlington: 63° (smashed record of 51° set in 1930)
Caribou: 48° (broke the record of 43° set in 1956)
Columbus, OH: 68° (broke record of 66° set in 1937)
Elizabeth City, NC: 73° (tied record set in 1998)
Erie, PA: 67° (broke record of 64° set in 1937)
Georgetown, DE: 69° (broke record of 66° set in 2007)
Hartford: 62° (broke record of 59° set in 1930)
Mansfield, OH: 62° (broke record of 60° set in 1989)
Montreal: 50°/9.8°C (broke record of 46°/7.5°C set in 1989)
New York City (LGA): 64° (broke record of 61° set in 1998)
Pittsburgh: 69° (broke record of 66° set in 1937)
Portland: 61° (broke record of 51° set in 1949)
Providence: 66° (broke record of 62°, 1930)
Raleigh: 73° (broke record of 71° set in 2005)
Rochester: 67° (broke record of 62° set in 1937)
Scranton: 67° (broke record of 66° set in 1998) **Tied Monthly Record High**
Syracuse: 70° (destroyed record of 53° set in 1965) **Tied Monthly Record High**
Toledo: 62° (tied record set in 1965)
Toronto: 60°/15.5°C (broke record of 53°/11.7°C set in 1965)
Wallops Island, VA: 65° (broke record of 64° set in 1989)
Washington, DC (DCA): 73° (broke record of 69° set in 1998)
Washington, DC (IAD): 70° (broke record of 69° set in 1998)
Watertown, NY: 65° (destroyed record of 51° set in 1965)
Williamsport, PA: 65° (broke record of 64° set in 1998)
Wilmington, DE: 66° (tied record set in 1998)
Worcester 62° (broke record of 58° set in 1930)
Youngstown, OH: 66° (broke record of 58° set in 1965)
To illustrate how remarkable the warmth was across portions of New York State where the biggest departures from normal occurred, Syracuse had a high temperature of 70°. That tied that city's all-time January high temperature and demolished the daily record of 53° set on 1/8/1965. Even more remarkable, Syracuse had a mean temperature that was 42° above normal.

Syracuse's 70° January days were as follows:
1/25/1950: High: 70°; Low: 39°; Mean: 54.5°
1/25/1967: High: 70°; Low: 41°; Mean: 55.5°
1/8/2007: High: 70°; Low: 59°; Mean: 64.5°
The 59° minimum temperature was the warmest minimum temperature on record for January. The old record was 56°, which occurred on January 15, 1995.
As for southern Ontario, Toronto established a daily record high temperature of 60° (15.5°C). Toronto's minimum temperature of 52° (11.3°C) was the warmest minimum reading on record for January. The old record was 46° (8.0°C), which occurred on January 31, 1988.