Cold snaps in NYC: 3+ days in a row never above freezing. Tue, Dec 26, 2017: 28°F / 23°F Wed, Dec 27, 2017: 24°F / 17°F Thu, Dec 28, 2017: 18°F / 11°F Fri, Dec 29, 2017: 22°F / 11°F Sat, Dec 30, 2017: 23°F / 17°F, 0.7″ snow, 0.05″ precipitation Sun, Dec 31, 2017: 21°F / 9°F Mon, Jan 1, 2018: 19°F / 7°F Tue, Jan 2, 2018: 26°F / 13°F Wed, Jan 3, 2018: 30°F / 16°F Thu, Jan 4, 2018: 29°F / 19°F, 9.8″ snow, 0.76″ precipitation Fri, Jan 5, 2018: 19°F / 9°F Sat, Jan 6, 2018: 13°F / 6°F Sun, Jan 7, 2018: 18°F / 5°F Mon, Jan 8, 2018: 31°F / 17°F, 0.01″ rain Source: NOAA GHCN-Daily, Ny City Cntrl Park (USW00094728).