How cold can temperatures get during the coldest time of year?
All-time record-low temperatures are far colder than average-low temperatures
Comparing winter temperatures in January versus February
FOX Weather meteorologist Jason Frazer compares winter temperatures in January vs. February as part of our Winter Across Amercia coverage.
The coldest time of the year is after the winter solstice for much of the United States, but you might be wondering how cold temperatures can get when they dip to their annual minimums in December, January and February.
Using 30-year averages from NOAA's National Centers for Environmental Information, we can look at the coldest average-low temperatures for select cities in each region of the country.

The coldest average-low temperature of the year for select cities in the United States.
(FOX Weather)
It's important to keep in mind that these temperatures are strictly long-term averages.
The actual coldest temperatures of the year can be colder or warmer than the values shown on the map above and in the tables below.
WHEN IS THE COLDEST TIME OF YEAR?

Coldest average-low temperatures for select cities in the Northeast and the dates in which they occur.
(FOX Weather)

Coldest average-low temperatures for select cities in the Midwest and the dates in which they occur.
(FOX Weather)

Coldest average-low temperatures for select cities in the South and the dates in which they occur.
(FOX Weather)

Coldest average-low temperatures for select cities in the Northwest and the dates in which they occur.
(FOX Weather)

Coldest average-low temperatures for select cities in the Southwest and the dates in which they occur.
(FOX Weather)
NOAA FINDS ‘SMALL BUT NOTICEABLE SHIFT’ IN COLDEST TIME OF YEAR FOR EASTERN U.S.
The following animation illustrates how average-high temperatures change over the course of the winter from December through February.

Average-high temperatures across the United States from December through February.
(FOX Weather)
This next animation shows the evolution of average-low temperatures between December and February.

Average-low temperatures across the United States from December through February.
(FOX Weather)
But we all know the weather doesn't always follow averages. All-time record-low temperatures are far colder than average-low temperatures.
Bismarck, North Dakota, dipped to its record low of minus 45 degrees twice, once on Jan. 13, 1916, and again on Feb. 16, 1936.

All-time record-low temperatures for select cities in the United States.
(FOX Weather)
Kansas City, Missouri, set its all-time record low of minus 23 degrees on back-to-back days, Dec. 22 and 23, 1989.
NEW YORK CITY ARGUABLY HAS THE MOST UNIQUE WEATHER OBSERVATIONS IN AMERICA
The coldest temperature ever recorded in New York City was minus 15 degrees on Feb. 9, 1934.