The temps are between 18–23 °F (−7 to −5 °C). Nights are cold and frigid, between −2 and 4 °F (−18 to −15 °C). Most of Central New York, Mid Hudson Valley, and the Catskills have moderate temperatures that are not very cold but not mild, Between 30–35 °F (−1 to 1 °C).
The weather in New York in winter sees average high temperatures of 6°C (43°F) and lows of -3°C (27°F), with January being the coldest month. But the wind chill can make it seem colder, and icy spells can cause temperatures to plummet to -15°C (14°F). There are also frequent snow showers, with 66cm falling a year.
January The daily mean temperature in January, the area's coldest month, is 32.6 °F (0.3 °C); however, temperatures to 10 °F (−12 °C) or less can occur several times each winter while on the other hand mild spells to 50°F (10 °C) or more occur several days each winter month as well.
The cold season lasts for 3.3 months, from December 3 to March 12, with an average daily high temperature below 48°F. The coldest month of the year in New York City is January, with an average low of 29°F and high of 40°F.
New York City has humid hot summers and wet cold winters. The weather can change dramatically in a matter of hours, and tourists and visitors should take this into account when planning their trip.
New York City weather can vary from day to day, and even hour to hour, but a guide to the seasons can help you plan your wardrobe. … The fall season is chilly and crisp, so it's wise to wear layers. The winter months are cold and snowy with less daylight, though the sky is often sunny and clear.
While this may be a deterrent for some, winter in New York City is actually one of the most festive and exciting times to visit. … Even after the holidays are long gone, NYC in winter is still vibrant, from fashion shows and discounted restaurants to Jazzfest and Chinese New Year.
But winters are a different story. … While the coldest average monthly temperature in New York bottoms out at 27 degrees, Chicago's average lows in winter months are 18 degrees or colder.
Some winters witness several major several snowstorms with snowfall >45 inches, while few winters are nearly snowless with <10 inches. I'd say on average, the City is guaranteed at least a couple of moderate snowstorms (6-10 inches each), but as you can see, its highly dependent on the season.