New York in December sits between an average high of 3.3°C (38°F) and an average low of -3.9°C (25°F), with 79.9mm of precipitation spread across 8 wet days. Three things decide whether you are comfortable: a wind-resistant waterproof coat, boots with a rubber sole that grip wet pavement, and hat-gloves-scarf, because you will be standing still outdoors far more than you expect. Everything else is adjustable.
What the weather is actually like in New York in December
The number that matters most is not the high or the low on its own — it is the gap between them. An average high of 3.3°C means most afternoons are above freezing. An average low of -3.9°C means most nights drop below it. New York in December runs a daily freeze-thaw cycle: whatever melts during the day refreezes overnight, and the slush pile at every street corner turns into a hard, uneven ridge of ice by the following morning.
That cycle also explains the precipitation. Of the 79.9mm (about 3.1 inches) that falls across 8 days, a good share arrives as rain or wet mixed precipitation rather than clean powder snow, because daytime temperatures hover just above freezing. This is the single biggest thing people misjudge. They pack for a snow-globe December and arrive to grey drizzle, wet sidewalks, and standing water at every curb cut where the crossing meets the road.
Two other December-specific factors change what you need. Daylight is at its shortest — the sun sets around 4:30pm, so a large share of your sightseeing happens after dark, when temperatures are heading toward that -3.9°C low rather than the 3.3°C high. And the avenues run north-south in an uninterrupted grid, which channels wind straight down them. A calm 3°C on Fifth Avenue between buildings and a windy 3°C walking up Sixth are not the same experience.
Honestly: December is not New York's best weather month, and it is the most expensive one. Hotel rates peak between roughly the 15th and New Year's, crowds at every major attraction are at their annual worst, and the outdoor things people love about the city — the High Line, Central Park, the harbor ferries — are less pleasant than in September or May. December is worth it for the holiday atmosphere specifically, not for the weather. If the holiday season is not why you are going, January and February are colder but cheaper and emptier, and March gives you similar prices with more daylight.
What to Wear in New York in December, Layer by Layer
Base layer. A merino or synthetic long-sleeve top, not cotton. Cotton holds sweat, and you will sweat, because you alternate between freezing avenues and overheated subway platforms, restaurants, and department stores. You need one or two, not a full week's worth — you will only wear a base layer on evenings you are outdoors for a long stretch.
Mid layer. A fleece or a packable down sweater. This is the layer doing your temperature adjusting, so it needs to compress small enough to stuff into a day bag when you go inside. A thick wool sweater is warm but useless once you are in a museum for three hours with nowhere to put it.
Outer layer. Waterproof and wind-resistant matters more than thick and insulated at these temperatures. A hip- or knee-length coat with a hood beats a bulky expedition parka, which is overkill for 3.3°C and unbearable indoors. The hood is not optional: with 8 wet days out of 31, you have roughly a one-in-four chance of rain on any given day, and a hood is the piece of rain gear that survives December wind.
Legs. Jeans or lined trousers are fine for daytime. Add thermal leggings or tights underneath for evening plans — outdoor markets, the tree, a rooftop bar, New Year's Eve. Denim gets cold fast once it is damp, so if you are out in rain all day, a second pair matters more than a warmer pair.
Feet. Waterproof boots with a lugged rubber sole. This is the item people get wrong most often. Smooth-soled leather boots slide on the refrozen ice at curb corners, and any non-waterproof shoe soaks through the moment you misjudge a slush puddle at a crossing. Bring wool socks and a second pair of shoes — wet shoes do not dry overnight in a hotel room, and one soaked pair can ruin a whole day.
Extremities. A hat that covers your ears, touchscreen-compatible gloves, and a scarf or neck gaiter. These weigh almost nothing and deliver more warmth per gram than anything else in your bag. The touchscreen detail matters specifically in New York, where you are checking transit directions constantly and taking gloves off at every corner is genuinely miserable at -3.9°C.
What most people get wrong for December in New York
They dress for walking, then stand still. December in New York involves queues — the Rockefeller tree, Bryant Park's market, the Empire State Building observatory, holiday windows, restaurant waits. Standing outside for 40 minutes at 0°C is dramatically colder than walking at the same temperature. Pack for the standing, not the walking.
They pack for snow instead of rain. Given a 3.3°C average high, much of that 79.9mm arrives wet rather than frozen. Snow gear keeps you warm and does nothing about wet feet.
They underestimate indoor heat. New York interiors in winter are aggressively heated, and subway platforms in particular are hot and airless. If your warmth comes from one enormous coat rather than removable layers, you will spend the whole trip either freezing or sweating.
They forget the harbor. If you are taking the Staten Island Ferry or going to Liberty Island, that is exposed open water and it will feel several degrees colder than the same afternoon in Midtown. This is the one place in a New York December where the full hat-gloves-scarf set is non-negotiable.
They plan around a snow day that probably will not happen. Snow in the city usually clears from main sidewalks within a day. Do not build your packing around it. If you are extending the trip upstate — the Catskills, the Hudson Valley, Woodbury Common in a storm — that is a genuinely different climate and does justify real winter boots.
What you can skip
Heavy snow boots. Unless you are leaving the city, insulated snow boots are too warm for indoor New York and too clumsy for the amount of walking you will do. Waterproof ankle boots with grip cover it.
An expedition-grade parka. Rated for -30°C, used at 3°C, carried by hand through every museum.
Snow pants. No use in a city trip.
A full-size umbrella. Wind funnelled down the avenues destroys them, and you will be carrying it on 23 dry days. A compact one is reasonable, but a hooded shell is the real answer for a New York December.
Formal clothes, mostly. Broadway theatres, most bars, and the great majority of restaurants are fine with what you wore that day. Pack one smarter outfit only if you have a specific reservation that calls for it.
Multiple coats. You will wear the same coat every single day, including in every photograph. One good one beats two mediocre ones.
A week of outfits. Layers get reworn. Bring more socks and fewer tops.
New York in December packing checklist
- Waterproof, wind-resistant coat with a hood (hip length or longer)
- Packable down sweater or fleece mid layer
- 1–2 merino or synthetic base layer tops
- Waterproof boots with a lugged rubber sole
- Second pair of shoes, so wet ones can dry
- 4–5 pairs of wool socks
- Thermal leggings or tights for evenings outdoors
- Hat covering the ears
- Touchscreen-compatible gloves
- Scarf or neck gaiter
- Crossbody bag that closes, with room for a shed mid layer
- Power bank — cold drains phone batteries fast, and you are navigating on your phone all day
- Lip balm and hand cream for dry indoor heating
- Compact umbrella (optional, if your coat has no hood)
- Reusable tote for shopping, since many stores charge for bags
Frequently Asked Questions
Does it snow in New York in December?
It can, but the December averages argue against counting on it. With an average high of 3.3°C — above freezing — much of the month's 79.9mm of precipitation falls as rain or wet mix rather than lasting snow. Snowfall becomes more reliable in January and February. Plan for cold rain and refrozen slush, and treat any snow as a bonus.
Do I need snow boots for New York in December, or will regular boots work?
Regular boots work, provided they are waterproof and have a rubber sole with actual tread. The hazard in a New York December is not deep snow, it is wet pavement and the ice that forms overnight when daytime melt refreezes at -3.9°C. Grip and waterproofing solve that. Full insulated snow boots are only worth the space if you are heading upstate.
What should I wear to the holiday markets and the tree at Rockefeller Center?
Dress one level warmer than you would for a day of walking, because these are standing activities, often after dark when the temperature is falling toward the overnight low. Add the base layer, thermal tights under your trousers, and the full hat-gloves-scarf set. The markets at Bryant Park and Union Square are largely open-air with limited shelter, so if the forecast shows rain, treat waterproofing as the priority over extra insulation.
Build your own list: the TripPack generator checks the live forecast for your exact dates and adds voltage, visa and water-safety notes. See also the New York packing list.