With temperatures dipping to six below zero in some areas, it's time for many people to hibernate.
At many grocery stores like the Tops Friendly Market on West 38th Street, folks like Laura Tracy are stocking up on groceries so they can stay indoors.
"I'm trying to not have to come out of the house again unless necessary," said Tracy.
Meanwhile, the Erie International Airport was a ghost town on Monday night, with four of the six departing flights scheduled for Tuesday already canceled.
If you're traveling or must go outside for any reason, the arctic temperatures can cause some severe health risks such as hypothermia and frostbite.
"People will start to feel cold, exposed areas of their skin will get red... it may turn into a bluish color, at first, they'll have a lot of pain that progresses to numbness," said Carrie Colleran of Saint Vincent Hospital. "It's really important to keep the exposed areas of your skin covered. Hats, gloves, scarves, jackets, appropriate footwear."