At 6 a.m. the temperature in Central Park hit 2 degrees. That’s cold enough to get frostbite on exposed skin, so cover everything up. North and west of the city it is colder still: 9 below zero in Sussex, N.J., with a wind chill of -20. In the city, the mercury will creep up to only 16 degrees by afternoon. Overnight, more of the same, down to 10, with below-zero wind chills.

Source: New York Times January 31, 2019 12:00 UTC