New York City has seen 18 deaths due to extreme cold, Mayor Zohran Mamdani announced. The city endured a cold snap from late January with 13 days at or below freezing—one of the longest since 1963. Over the weekend, another person died on the streets. "Each life lost is a tragedy, and we will continue to hold their families in our thoughts," said Mamdani. Temperatures will rise this week but remain below average. The mayor urged residents to "stay safe, stay indoors... [and] keep looking out for one another." Since January 19, when a Code Blue emergency began, about 1,400 people have been placed in shelters. The city added 64 hotel rooms and deployed 150 outreach workers to aid homeless residents. Ten of the deceased were found outdoors; details on the rest are unclear. Mamdani said, "Because it is not forecast to be above 32 degrees [Fahrenheit] until tomorrow, and 35 degrees is hardly balmy weather." The U.S. National Weather Service reported the cold came with dangerous wind chills, increasing risks of hypothermia and frostbite. The 13-day stretch of freezing temperatures ended Friday after a brief rise above 0C. NYC Emergency Management warned that melting snow and ice could fall unexpectedly and streets might refreeze, continuing hazards in the city.