Actually, it's not, but don't tell the people in the southeast US that right now. They won't believe you.
Average temperatures for Atlanta in January are in the 40's. Average high is 52F, and average low is 33F. January is the city's coldest month, so that means that if the temperature ever dips below freezing there, it's pretty darn cold.
Last night, the base temperature in Atlanta was 23F, with wind chill of 14F. Tuesday morning, it's to get down to 19F. And that's without wind chill.
19F (-7C) in January is moderately normal in New Brunswick. It's an average low in Pennsylvania, and on the chilly side in Virginia. But in places where it's not supposed to get down below freezing EVER?
Dudes. That's cold.