Arctic air poured into southeast Ohio on the 27th.  A clear night with diminishing winds resulted in temperatures mostly in the minus 5 to minus 20 degree range across southeast Ohio.
At dawn on Tuesday the 28th, preliminary data indicated the coldest temperature from the official cooperative observers network was 21 degrees below zero from New Lexington.
Some of the other minimum temperature readings around dawn on the 28th from cooperative observers included minus 9 at Jackson, minus 8 at Newport, minus 7 at Marietta, and minus 6 at Gallipolis.
Some unofficial readings included a minus 20 from Corning in Perry County and a minus 16 from McConnelsville in Morgan County.  A minus 14 was reported from both Zaleski in Vinton County and Watertown in Washington County.  Readings of minus 13 to minus 17 were reported around the town of Athens.
The night of Jan 28th into Jan 29th was another bitter cold night with readings in interior southeast Ohio very similar to the previous night.  New Lexington reached minus 22 degrees, Beverly minus 16, Waterloo minus 13, Jackson minus 10.
With the Ohio River filled with broken ice, communities along the river were colder at dawn on the 29th.  Marietta observed 11 below zero. Newport reached down to 10 below zero, while Gallipolis fell to minus 8, and South Point reached minus 2.
Some unofficial readings from the 29th included minus 21 at Corning, minus 19 along Interstate 77 in northern Washington County, minus 18 at Ohio University in Athens, plus Zaleski in Vinton County and McConnelsville in Morgan County.  A minus 17 was reported in Wellston in Jackson County.
The 3rd clear night was not quite as bitter, but still resulted in temperatures dipping below zero in many areas for dawn on Thursday the 30th.  New Lexington had 10 below zero.  Some unofficial readings also included minus 10 at Ohio University and Zaleski.
The 3 day cold wave finally broke that afternoon, as temperatures rose to either side of freezing with sunshine.

Extreme Cold/Wind Chill in JACKSON, OHIO
From 27-JAN-14 08:00:00 to 30-JAN-14 11:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in LAWRENCE, OHIO
From 27-JAN-14 08:00:00 to 30-JAN-14 11:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in MEIGS, OHIO
From 27-JAN-14 08:00:00 to 30-JAN-14 11:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in MORGAN, OHIO
From 27-JAN-14 08:00:00 to 30-JAN-14 11:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in PERRY, OHIO
From 27-JAN-14 08:00:00 to 30-JAN-14 11:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in VINTON, OHIO
From 27-JAN-14 08:00:00 to 30-JAN-14 11:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in WASHINGTON, OHIO
From 27-JAN-14 08:00:00 to 30-JAN-14 11:00:00 (EST-5)
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in ATHENS, OHIO
From 27-JAN-14 08:00:00 to 30-JAN-14 11:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in GALLIA, OHIO
From 27-JAN-14 08:00:00 to 30-JAN-14 11:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter