April is full spring across most of New York — woodland floors erupt with ephemeral wildflowers, the first warblers and migrants arrive, orchards and shadbush bloom, and the planting season opens in earnest. It is one of the two best wildflower months of the year, the forest ablaze with color before the canopy closes.
Week by week in April
April 2–8
- The first warblers arrive — pine, palm, and yellow-rumped lead the vanguard — along with ruby-crowned kinglets and hermit thrushes.
- The spring ephemerals begin in earnest: bloodroot, hepatica, spring beauty, and trout lily open on the warming forest floor.
- The shadbush (serviceberry) leads the flowering trees with clouds of white blossom along woodland edges and riverbanks.
April 9–15
- Trout lily carpets the Hudson Valley and Finger Lakes woods, and Dutchman's breeches, wood anemone, and the first trilliums open.
- Broad-winged hawks begin streaming north on warm-front days, and chimney swifts return to chitter over the cities.
- Plant bare-root fruit trees, asparagus crowns, rhubarb, and strawberries while they're still dormant, and set out hardy brassica transplants.
April 16–22
- Large-flowered trillium, Virginia bluebells, marsh marigold, and wild columbine peak in the rich woods — the heart of the ephemeral show.
- The Lyrid meteor shower peaks around April 22, a reliable display of fast, bright meteors radiating from near rising Vega, best after midnight.
- Orchard apples, pears, and cherries of the Hudson Valley and Lake Ontario plain burst into white and pink bloom.
April 23–29
- Central Park begins drawing the city's birders for the first true warbler days as migration accelerates toward its May peak.
- The very first monarchs of the spring generation may reach southern New York, scouting the emerging milkweed to lay eggs.
- The first tender asparagus, rhubarb, and foraged ramps and fiddleheads appear at warm-area stands as the spring harvest opens. Cook fiddleheads thoroughly before eating — boil 15 minutes or steam 10–12; never raw.
Birds This Month
April accelerates New York's spring migration toward its May peak. The first wave of returning songbirds floods in: pine, palm, yellow-rumped, and black-and-white warblers lead the warbler vanguard, joined by blue-headed vireos, ruby-crowned and golden-crowned kinglets, hermit thrushes, brown thrashers, and a surge of sparrows — chipping, field, savannah, and white-throated. Eastern phoebes sing from bridges, tree and barn swallows swoop the fields, and chimney swifts return to the cities.
The wetlands remain spectacular. Montezuma still teems with waterfowl and now fills with returning marsh wrens, soras, Virginia rails, and the first shorebirds — yellowlegs and pectoral sandpipers — on the flooded fields, while courting great blue herons and great egrets build rookeries. Ospreys return to coastal and Hudson Valley nest platforms, broad-winged hawks begin to stream north on warm-front days, and American woodcock sky-dance through the month. By late April, Central Park begins drawing the city's birders for the first true warbler days.
What's Blooming
April is the climax of New York's spring ephemerals, the brief, brilliant window when the forest floor blooms before the trees leaf out and shade it. The rich, moist deciduous woods of the Hudson Valley, Finger Lakes, and Catskills carpet themselves in trout lily, white drifts of bloodroot, the lacy Dutchman's breeches and squirrel corn, nodding spring beauty, blue hepatica, and the first trillium. Marsh marigold glows gold in wet woods and seeps statewide.
As the month progresses the show builds: large-flowered trillium, wild ginger, mayapple, Jack-in-the-pulpit, wood anemone, rue anemone, Virginia bluebells, and wild geranium open in succession, and on rocky ledges of the Hudson Highlands and Shawangunks the red-and-yellow wild columbine dangles. In gardens, daffodils, tulips, hyacinths, forsythia, and flowering quince peak. The ephemerals fade fast once the canopy closes, so the second half of April into early May is the window — earliest downstate, later in the cold uplands.
Garden This Month
April is the heart of cool-season planting across New York. Once the soil is thawed, dry, and workable, direct-sow the cold-tolerant crops — peas, lettuce, spinach, arugula, radishes, carrots, beets, turnips, chard, and potatoes — and set out hardy transplants of broccoli, cabbage, kale, onions, and lettuce. This is also the prime window to plant bare-root fruit trees, asparagus crowns, rhubarb, strawberries, and perennials while they are still dormant.
Hold the warm-season crops: tomatoes, peppers, squash, and beans must wait for the last frost, which across New York runs from mid-to-late April downstate to late May or even June in the Adirondacks. Keep those seedlings indoors and begin hardening them off in a sheltered spot over the coming weeks. In the ornamental garden, finish cutting back perennials, divide and move them as they emerge, edge and mulch beds, and start the lawn. Plant native milkweed and early nectar flowers now to support the monarchs and pollinators arriving next month.
Zone 4b (Adirondacks & northern uplands): the ground finally thaws this month, but hard frost continues. Direct-sow the hardiest crops — peas, spinach, radishes — once soil is workable late in the month, and keep warm-season seedlings indoors well into May.
Zone 5b (much of upstate & the Catskills): prime cool-season planting. Direct-sow peas, lettuce, spinach, carrots, beets, and potatoes, set out hardy brassica transplants, and harden off warm-season seedlings, but keep them protected from the still-likely frosts.
Zone 6b (lower Hudson Valley & NYC fringe): the season is well underway. Plant all the cool-season crops, set out cold-hardy transplants, and prepare for warm-season planting in May; watch the forecast as the last frost nears mid-to-late month here.
What's at the Farmers Market
April is the hungry-gap month at New York markets, when winter storage runs low but the first true spring harvest begins to trickle in. The earliest field crops appear: tender asparagus at the very end of the month in warm areas, fat stalks of rhubarb, peppery radishes, the first cut lettuces, spinach, arugula, pea shoots, green garlic, and green onions from greenhouses and early fields. From the woods come foraged ramps and fiddlehead ferns, spring delicacies that appear briefly at upstate stands.
Storage crops still fill out the tables — the last good apples, potatoes, onions, carrots, and parsnips — alongside the season's fresh maple syrup, honey, and cheeses. It is the biggest plant-and-seedling season too, as nurseries and markets fill with vegetable starts, herbs, pansies, and perennials for gardeners racing the frost date. Choose tight, firm asparagus and use it quickly, pick the freshest greens, and handle ramps and fiddleheads gently as both are highly perishable — and cook fiddleheads thoroughly (boil 15 minutes or steam 10–12; never raw).
Night Sky This Month
April's milder, lengthening nights bring the spring sky into full command. The Big Dipper rides high overhead, and its handle arcs down to brilliant orange Arcturus in Boötes climbing the eastern sky, then continues on to blue-white Spica in Virgo — the classic "arc to Arcturus, speed on to Spica." Leo the lion strides across the south with bright Regulus, and the realm of galaxies in Virgo and Coma Berenices rewards a telescope from dark skies.
The Lyrid meteor shower peaks around April 22, a modest but reliable annual display of fast, bright meteors radiating from near the rising star Vega, best after midnight from a dark Adirondack or Catskill site away from city light. The winter constellations sink into the western twilight early in the evening. On geomagnetically active nights the aurora remains possible low on the northern horizon upstate. The printable New York night-sky guide gives this year's exact Lyrid peak, planet positions, and dark-sky locations.
Butterflies & Pollinators
April brings New York's butterfly season to life. The overwintered adults — mourning cloak, eastern comma, and question mark — are flying strongly on warm days, now joined by the first fresh-brood butterflies emerging from chrysalides. Small blue spring azures flicker along woodland edges, cabbage whites and clouded sulphurs appear over fields and gardens, and the elfins — eastern pine, brown, and henry's elfins — fly briefly in pine barrens and scrubby woods.
Migrants begin to arrive on southerly winds: in big flight years red admirals, painted ladies, and American ladies can appear in numbers, and the very first monarchs of the spring generation may reach southern New York by late April, scouting for the emerging milkweed. The first eastern tiger swallowtails can fly in the warmest downstate counties at month's end. Watch the early spring ephemerals, willow catkins, and dandelions for nectaring butterflies on sunny, calm afternoons — the season is just opening, with far more to come in May.
What to plant for them is in the New York native plants guide
Trees This Month
April is the great leaf-out and flowering month for New York's trees, the bare gray woods turning green from the bottom up. The shadbush (serviceberry) leads with clouds of white blossom along woodland edges and riverbanks — its bloom traditionally marking the shad run up the Hudson — followed by red maple unfurling its red-tinged leaves and the silver and sugar maples greening up. Aspens, birches, and willows leaf out early, hazing the hillsides in pale green.
The flowering procession builds through the month: pin cherry, wild plum, chokecherry, and the orchard apples, pears, and cherries of the Hudson Valley and Lake Ontario plain burst into white and pink, the ornamental flowering dogwood and redbud open in the warmer south, and oaks, hickories, ash, and beech push their first leaves and catkins. The eastern white pine and other conifers send up new candles. By late April the canopy is filling fast, beginning to close the sunlit window the forest-floor wildflowers depend on.
The New York native plants guide covers what grows with them
Weather & Daylight
Across New York, a typical April day averages a high near 55°F and a low near 33°F, with about 3.6 inches of precipitation — statewide averages from the 1991–2020 U.S. climate normals.
A true thaw arrives, mild 55-degree days and cool 33-degree nights, with steady showers waking up the landscape.
| Average high | 55°F |
|---|---|
| Average low | 33°F |
| Precipitation | 3.6 in |
| Sunrise (mid-month) | 6:21 ET |
| Sunset (mid-month) | 19:41 ET |
Figures are statewide averages over the 1991–2020 U.S. climate normals; local conditions vary with elevation and distance from the coast. Sunrise and sunset are computed for a midstate point on the 15th (ET).
Next month's version of this page, by email
One short note when New York's next month turns — what's arriving, blooming, and worth a night outside.
Go deeper with the New York guides
The complete New York birding, native-plant, and night-sky references — or the whole year, week by week, in one book.
Same month elsewhere: April in North Carolina · April in North Dakota · April in Ohio