New York Nature Guide: December 2026
December brings winter to New York — snow blanketing the Adirondacks and upstate, the rivers and lakes freezing, the Christmas Bird Count season underway, and the Niagara gull spectacle building toward its peak. The long, cold, dark nights deliver the Geminid meteors and some of the clearest skies of the year.
What to look for this week
- Feeders are at their winter peak — black-capped chickadees, tufted titmice, nuthatches, and cardinals work the seed, with redpolls and siskins possible in a northern-finch irruption year.
- The Quadrantid meteor shower peaks in a short, sharp burst around January 3; watch after midnight from a dark Adirondack or Catskill site away from city lights.
- A planning week — order seeds early, especially the short-season varieties Adirondack and northern gardens depend on, before they sell out.
Birds This Month
December settles New York's winter birds into place and brings the start of Christmas Bird Count season, when teams fan out across the state to tally the winter avifauna. The Niagara River gorge gull spectacle approaches its peak, with thousands of gulls of many species swirling below the falls — a globally significant gathering. Open water on the lower Hudson, the Niagara, and below dams holds bald eagles, common goldeneye, mergansers, canvasback, and lingering waterfowl until the freeze pushes them out.
The coast and farm country host the winter specialties: snowy owls on the dunes and breakwalls, rough-legged hawks and short-eared owls over grasslands, horned larks, snow buntings, and Lapland longspurs in open fields, and harlequin ducks, long-tailed ducks, common eiders, and purple sandpipers at Montauk and the jetties. Feeders are busy with chickadees, titmice, nuthatches, cardinals, juncos, and woodpeckers, and in an irruption year redpolls, siskins, evening grosbeaks, and crossbills brighten the count. Keep feeders full and water available through the cold.
What's Blooming
December offers no wildflowers in New York's frozen, snow-covered landscape, but the winter woods and fields hold their own quiet structure and color. The persistent berries are the brightest feature — the scarlet of winterberry holly blazing in the swamps, the red of wild rose hips, sumac, bittersweet, hawthorn, and crabapple, and the blue of red cedar and juniper — all crucial food for the wintering birds and a welcome flash of color against the snow.
The dried architecture of last summer's growth stands above the drifts: the dark seed-heads of coneflower and black-eyed Susan, the flat umbels of Queen Anne's lace, the silver-tufted pods of milkweed, the plumes of goldenrod and the ornamental grasses, all catching frost and low winter light. On the forest floor beneath the snow, the evergreen wintergreen, partridgeberry, Christmas fern, and club mosses hold their green. In the mildest downstate gardens, a few hellebores and the earliest snowdrops may show by late December in a mild spell.
Garden This Month
December is the dormant, restful month in the New York garden, with little to do outdoors but a few protective tasks and plenty of planning. Across most of the state the ground is frozen and snow-covered. Let snow accumulate over perennial beds and garlic, where it insulates the roots far better than bare frozen ground, and gently brush heavy, wet snow off arborvitae, boxwood, and evergreen branches to keep them from breaking under the load.
Check that mulch, burlap, and tree wraps are still protecting tender shrubs, roses, figs, and young tree trunks from cold, drying winter wind, and from the rabbits and voles that gnaw bark in lean weeks. In the mildest downstate zones you can still cut a few greens from a cold frame and prune dormant shade trees on a mild day. Otherwise, this is the season for indoor work: inventory and order seeds early — especially the short-season varieties northern gardens need — clean and sharpen tools, force paperwhites and amaryllis indoors for winter bloom, and plan next year's garden by the fire.
Zone 4a (Adirondacks & coldest valleys): deep winter, locked in snow and cold. Let snow blanket the beds as insulation, knock heavy loads off evergreens, and spend the month indoors planning and ordering seeds for the short northern season.
Zone 5b (much of upstate & the Catskills): the ground is frozen and dormant. Brush heavy snow off evergreens and shrubs to prevent breakage, check mulch and tree-trunk protection against rodents, and turn to seed catalogs and next year's plan.
Zone 7a (NYC & coastal Long Island): the mildest zone may stay open between cold snaps. Cold frames and heavy mulch can hold the hardiest greens, and you can prune dormant shade trees on mild days, but keep tender plants protected.
What's at the Farmers Market
December markets in New York run on the winter storage harvest and the holiday season. The root-cellar staples carry the month — storage apples, potatoes, sweet potatoes, onions, garlic, carrots, beets, parsnips, turnips, rutabaga, celeriac, winter squash, and cabbage — supplemented by greenhouse and cold-frame greens like kale, spinach, leeks, microgreens, and the frost-sweetened Brussels sprouts still sold on the stalk. The year-round and winter markets keep local growers connected to their customers through the cold.
This is the holiday-market season: cranberries from Long Island bogs, storage roots and squash for the winter table, maple syrup, honey, cider, jams, and farmstead cheeses, alongside the seasonal trade in Christmas trees, wreaths, and evergreen greens — balsam fir, white pine, and spruce — from upstate tree farms. Choose firm, heavy apples and roots and keep them cold and humid; pick winter squash with hard, dull rinds and dry stems and store them cool and dry; and select bright, tight Brussels sprouts. Store opened maple syrup in the refrigerator to preserve its flavor.
Night Sky This Month
December's long, cold nights — the longest of the year around the winter solstice near December 21 — deliver crisp, transparent skies and the return of the brilliant winter constellations. Orion climbs the eastern sky in the evening, his belt pointing to dazzling Sirius rising in the southeast, and the great Winter Hexagon — Sirius, Procyon, Pollux, Capella, Aldebaran, and Rigel — assembles, with the Pleiades riding high and the Orion Nebula glowing in binoculars.
The headline is the Geminid meteor shower, peaking around December 14 — one of the best and most reliable showers of the entire year, often producing dozens of bright, slow, multicolored meteors an hour radiating from Gemini, and well placed all evening from a dark Adirondack or Catskill site. The cold means dressing very warmly, but the dry air gives outstanding clarity. On geomagnetically active nights the aurora is possible low to the north. The printable New York night-sky guide gives this year's exact Geminid peak, planet positions, and the best dark-sky sites near you.
Butterflies & Pollinators
December finds New York's butterflies entirely dormant, hidden away in the frozen landscape, with no flight to be seen. Yet the next year's butterflies are present all around, simply tucked into their winter strategies. The adult overwinterers — mourning cloak, eastern comma, question mark, and gray comma — pass the deep cold behind loose bark, in woodpiles, hollow trees, and unheated outbuildings, their bodies protected by natural antifreeze compounds that let them survive subzero nights intact.
The rest of the state's species wait out the winter in earlier stages. The swallowtails hang as chrysalides disguised against twigs and bark; the great spangled fritillary survives as a tiny, newly hatched caterpillar in the leaf litter; and countless whites, sulphurs, hairstreaks, and skippers persist as eggs and larvae in the duff and on their host plants. The monarchs are far to the south in the Mexican fir forests. The kindest gift to next summer's butterflies is to leave the leaf litter, standing stems, and brush piles undisturbed through the winter — they are full of dormant life.
Trees This Month
December reveals the full winter character of New York's forests, the deciduous trees bare and the conifers carrying the only green. This is the month to read bark and form: the shaggy plates of shagbark hickory, the smooth gray of American beech still holding its pale, papery marcescent leaves, the broken-plate bark of mature black cherry, the white peeling paper birch of the north woods, and the camouflage-mottled trunks of sycamore glowing pale along the streams.
The conifers now define the landscape and the season — the soft five-needle bundles of eastern white pine, the state tree; the dark green of eastern hemlock shading the Finger Lakes gorges; the spires of red spruce and balsam fir on the Adirondack peaks; and the red, pitch, and Scots pines of the ridges and barrens — many of them cut and brought indoors as Christmas trees this month. Buds for next spring are fully set and dormant on every twig, and the persistent fruit and nuts and the bare branch architecture stand out clearly against the snow and the low winter sun.
Go deeper with the New York guides
The complete New York birding, native-plant, wildflower, and night-sky guides — or the whole year in one bundle.
Same month elsewhere: December in North Carolina · December in North Dakota · December in Ohio