What to look for in nature in Vermont this April

Does Vermont’s sugaring season end in April, and what is the Maple Festival?

• The last syrup of the year

  Whenever the nights stop freezing, often by early April · Sugarhouses statewide

  The association explains that the syrup made at the end of the season is the darkest and strongest, the grade that suits cooking and baking better than pouring over pancakes.

• Vermont Maple Festival

  April 23, 24 and 25, 2027, per the festival’s own site · St. Albans

  The festival’s site names the 2027 edition the 60th anniversary of the event and lists the theme “Sweet Traditions with Strong Roots.” It names a Maple Beverage Tasting and a Maple Ambassador Contest among the events but has not yet posted a full schedule. In past years the festival has included pancake breakfasts, tastings, cooking demonstrations, a parade, live entertainment and artisan vendors. Check the festival site for hours and locations before you go.

• When the maples leaf out

  Sugar maple buds break open, on average, around May 5 on Mount Mansfield’s lower slope · Proctor Maple Research Center, Underhill, 1,400 feet

  The Vermont Monitoring Cooperative has watched sugar maple buds at the Proctor Maple Research Center since 1991. Its 2017 update gives day 125 of the year (about May 5) as the long-term average for first bud break, and day 119 (about April 29) for 2017, an early year. The center sees a weak but steady drift toward earlier springs.

When does the ice go out on Vermont lakes, and when do loons come back?

• Joe’s Pond ice-out contest

  Ice-out has ranged from April 5, 2010 to May 6, 1992; the 38-year average since 1988 is April 23 · West Danville

  Each winter a cinder block on a pallet with a clock mechanism is set on the pond; the clock stops when the ice lets go, and entrants guess the day and minute. WCAX reported that the 2026 ice-out was the 39th contest, and the average date over 38 years is April 23. Tickets are $1, and in a recent year the Boston Globe reported that entries closed on April 1, with about half the proceeds going to the winner and the rest to the Joe’s Pond Association. Contest rules for 2027 are not posted yet, so check with the association.

• Lake Iroquois and the long trend

  Lake Iroquois in Hinesburg: earliest March 9, 2000; latest April 27, 2007 · Statewide, 15 lakes with at least 20 years of data

  VTDigger reported that Vermont lakes with at least 20 years of consistent reports are losing ice about 1.5 days earlier each decade. Lake Iroquois holds a $1 contest of its own.

• Lake Champlain in spring

  Flood stage is 100 feet above sea level · Lake Champlain

  In 2026 the National Weather Service in Burlington recorded Lake Champlain as closed (frozen over) on February 13, and its list of recent years shows no other closure from 2020 to 2025. In the record spring of 2011, the Lake Champlain Basin Program says record snowmelt and heavy rains pushed the lake above its 100-foot flood stage on April 13, kept it there for 67 days until June 19, and crested it at 103.27 feet on May 6.

• Common loons return

  April, soon after ice-out · Lakes and ponds statewide

  The Vermont Center for Ecostudies says loons return to their breeding lakes as the ice goes out. Its Vermont Loon Conservation Project reports 115 nesting pairs now, up from seven pairs about four decades ago. Volunteers monitor nests from mid-May through August, and the project builds floating nest platforms where water levels rise and fall. Stay well back from nesting loons, respect floating warning signs and report loons that look distressed.

Which birds arrive in Vermont in April?

• Hermit thrush, Vermont’s state bird

  Spring, from wintering grounds inside the United States · Woodlands statewide, near small openings

  Vermont named the hermit thrush its state bird in 1927. The Vermont Breeding Bird Atlas notes that it winters in the United States rather than the tropics, and that it nests on slightly drier ground than its relatives the veery and the Swainson’s thrush, often near a small opening in the woods. Between the two atlas periods it was found in 171 survey blocks instead of 155, with the greatest gain in the Champlain Valley.

• Tree swallows, bluebirds and kinglets

  Swallows from mid-March; ruby-crowned kinglets mid- to late April · Ponds, open fields, nest-box trails and wooded edges

  The atlas says tree swallows can return as early as mid-March, before the last hard frosts, which makes them vulnerable to cold snaps. Eastern bluebirds were found in 122 blocks in the second atlas against 92 in the first, a 33 percent gain, and the atlas credits volunteer nest-box trails, which supply most of the state’s nest sites. The Center’s 2024 field guide places ruby-crowned kinglets in Vermont from mid- to late April.

• Pine warblers, chipping sparrows and the first warblers

  Late April, with more through May · Pine stands, yards and shrubby edges

  The Vermont Center for Ecostudies lists pine warblers and chipping sparrows among the first migrants of spring, and says house wrens arrive carrying nesting material. Bobolinks come in late April through May. On April 22, 2017, the Rutland County Audubon walk at West Rutland Marsh also found early yellow-rumped warblers.

• West Rutland Marsh in April

  Rutland County Audubon’s April walk; check with the chapter for 2027 · West Rutland

  That 2017 walk, with 36 birders from age 7 to 89, recorded 53 species, a new April high against the chapter’s April average of 42. It included a Virginia rail and an American bittern heard right away, a flock of 63 tree swallows, an uncommon red-shouldered hawk, 26 swamp sparrows, and bloodroot in bloom.

• Missisquoi National Wildlife Refuge

  Walking trails open dawn to dusk all year; the Jeep Trail is closed April through August · Swanton

  The U.S. Fish & Wildlife Service says the refuge hosts Lake Champlain’s biggest gathering of waterfowl, with wood ducks, mallards and teal especially common. Its marshes also hold American bitterns and Wilson’s snipe, and its fields hold bobolinks. Black terns, a state endangered species, nest on floating mats within sanctuary areas later in the season, one reason the Jeep Trail closes in April.

Which frogs are calling in Vermont in April?

• Spring peepers

  Calls reported from as early as March 15, with peak activity in early May · Shrubby wetlands, pond edges and flooded fields

  The Center reports that a male peeper can make three to four thousand peeps an hour for several hours a night, and that the muscles along his sides average 15 percent of his body mass. Naturalist Albert Wright, who kept records from 1900 to 1912, heard the first peepers on average on April 4. Atlas volunteers in the 1990s heard them around March 20, about 13 days earlier.

• Toads, treefrogs and the less common frogs

  April through May or longer, depending on species · Ponds, wet meadows, wooded wetlands

  American toads and gray treefrogs call from April through July. The less frequently reported boreal chorus frog and northern leopard frog call in April and May, and the pickerel frog from April through June.

• Fairy shrimp in the vernal pool

  April, for only a few weeks · Vernal pools and woodland ponds

  The Center’s 2022 April guide describes fairy shrimp as small crustaceans that reach about three-quarters of an inch and live only a few short weeks in these seasonal pools. Roughly 5,000 pools, known or likely, are on the Center’s map of Vermont, and volunteers adopt pools to monitor the amphibians and invertebrates in them. See the March guide for the road crossings that come first.

Which wildflowers and early bees can you find in Vermont in April?

• Hepatica, bloodroot and spring beauty

  April on sunny slopes and in sugarwoods · Northern hardwood forests, limestone woods in the Champlain Valley, seeps and ledges

  The Land Trust names four main habitats for spring flowers: northern hardwood forest, the limestone forests of the Champlain Valley, moist woodland edges and seeps, and calcareous ledges. The Vermont Center for Ecostudies also describes spring beauties in the sugarwoods, wild leeks pushing through the leaf litter with a sweet-onion smell, and the drooping catkins of beaked hazelnut. At West Rutland Marsh on April 22, 2017, bloodroot was in bloom and marsh marigold was budding.

• Trout lily and red trillium

  Late April into May · Rich, rocky woods and slopes

  Shelburne Farms says these plants thrive in rocky woods where water and eroded rock bring nutrients downslope. Its naturalists note that ants carry the seeds home and eat the oily body attached to each one without eating the seed, which is how many spring flowers spread. The trout lily’s leaves are gone by early June. Take photographs and leave the plants, as the Land Trust asks: many take years to produce their first flower.

• Willows and the mining bees

  April, when willow catkins open · Wet fields, stream banks and pond edges

  The Center’s April guide calls willows a main pollen source for early pollinators, and reports that at least eight Vermont mining bee species specialize on willows. Red-tailed mining bees are among those gathering pollen in April. Shelburne Farms counts over 300 bee species in Vermont.

• West Virginia white butterfly

  Flight from April 12 (earliest Vermont record, 2006) to June 5 (latest, 2003) · Moist hardwood woods with toothwort

  This small white butterfly lays its eggs only on crinkleroot and cut-leaved toothwort, according to the Center’s 2021 April guide, and its flight is mostly over by the second week of June. Its flight can begin in the middle of April.

When are fiddleheads ready, when does trout season open, and what is gobbling in the woods?

• Fiddleheads

  About April 20 in central Vermont, lasting three to four weeks, per Northern Woodlands · River banks, brooks and damp woods

  Northern Woodlands says a traditional signal that fiddleheads are ready is when tulips, forsythia and shadbush are in bloom. The edible ostrich fern is smooth, with a deep U-shaped groove along the stalk and a brown papery covering, as the Vermont Agency of Agriculture also describes, and fiddleheads are about an inch across. Avoid the whitish, fuzzy bracken fern. Northern Woodlands advises boiling or steaming them for 10 minutes before eating, and leaving at least one fiddlehead on each plant and avoiding crowns with fewer than six stems. Get the landowner’s permission first.

• Trout season

  2026 opened Saturday, April 11; the 2027 date will be announced in the spring · Low-elevation rivers and streams, stocked ponds

  Vermont Fish & Wildlife announces the opening date each spring, and the fishing guide and regulations list it. Fisheries biologist Shawn Good advised in 2026 that early-season anglers do best on small to medium low-elevation streams that are not muddy with runoff, fishing slowly along the bottom. Nearly all waters are open year-round for catch-and-release with artificial lures and flies only, and no live bait.

• Walleye on the Lamoille River

  Spawning in spring; the state sampled the river in mid-April 2023, after the peak · Lamoille River

  Vermont restarted walleye stocking in the Lamoille in 2023 for the first time in more than two decades, according to the Valley News. The catch rate fell from about 10 walleye per 20 hours of fishing in 1994 to one per 20 hours in 2021, and in the 1990s more than 100 vehicles would line the river on opening day.

• Wild turkeys

  Youth and novice hunting weekend was April 25 and 26 in 2026; the regular season ran May 1 to 31 · Farm country and oak and hickory woods, mostly in the southwest foothills, southern Champlain Valley and eastern lowlands

  Vermont Fish & Wildlife says the turkey was essentially absent before 1969, and hunters took more than 5,000 in 2024. Gobbling heard at dawn in the woods is the males advertising to hens. The 2027 season dates are not posted; check the department’s seasons page, which listed the youth and novice weekend in the last weekend of April in 2025 and 2026.

• Ruffed grouse drumming

  Spring mornings · Young aspen and mixed woods

  The Vermont Breeding Bird Atlas describes the ruffed grouse’s far-carrying spring drumming display, and says Vermont is something of a regional stronghold, with the species in 170 blocks in the second atlas against 172 in the first. The older local name is “partridge.”

What is April weather like in Vermont, and why is it the peak of fire season?

• Brush fires before green-up

  April and May · Statewide, on dry, windy days with dead grass

  Vermont Public reported that three-quarters of Vermont’s wildfires occur in April and May. National Weather Service meteorologist Robert Haynes explained that strong cold fronts often bring faster winds, and the fuel is the dead grass, leaves and twigs left from last year before the new growth begins. A burn needs a Permit to Kindle Fire, issued by the forest fire warden of your town, and a warden can ban all burning when danger is high.

• Mud season and trail closures

  Usually through late May · High-elevation trails

  The Green Mountain Club puts the start of mud season in late March or early April and its end in late May, with closures typically lasting until Memorial Day. High-elevation trails are the most vulnerable because soils are thin and the plants fragile. Follow the closures listed on TrailFinder, and try low-elevation walks such as Mount Philo in Charlotte, Mount Independence in Orwell, Sentinel Rock in Westmore or Paul’s Ledges in Putney.

When is Vermont’s last spring freeze?

How much daylight does Vermont gain in April?

What can you see in Vermont’s night sky in April 2027?

• Pink Moon

  Full at 6:27 p.m. EDT on Tuesday, April 20 · Eastern horizon at dusk

  In Burlington the Sun sets at 7:44 p.m. on April 20 and the Moon rises about 12 minutes later, at 7:56 p.m., according to the U.S. Naval Observatory. Pink is only a folk name for the April full moon; low in the sky the Moon looks pale gold.

• Lyrid meteors, a poor year

  Peak around 9:41 p.m. EDT Thursday, April 22 (the night of April 22 to 23) · Northeast sky, toward Lyra

  SeaSky calls the Lyrids an average shower of about 20 meteors an hour at best. In 2027 the Moon is three days past full, and it is about 95 to 97 percent lit on the 22nd, rising near 10:20 p.m. in Burlington (our own computation, which can be a minute or two off). Only the early evening is dark, and the radiant is low then, so a handful an hour is the likeliest count. A surprise burst is possible but cannot be predicted.

• Jupiter, Mars and the Moon

  The Moon passes Jupiter on April 14 and 15; Mars is near the Moon on April 15 · High in the sky after dark

  On the evenings of Wednesday, April 14 and Thursday, April 15, a Moon that is about two-thirds lit sits next to Jupiter, less than a degree apart at closest. Mars, fading but still brighter than most stars, sits about 3 degrees from the Moon late on April 15.

• Venus at dawn, and the new moon

  The thin crescent Moon is near Venus on the mornings of April 3 and 4; new moon April 6 · Low in the east before sunrise

  Brilliant Venus clears the eastern horizon about 75 minutes before the Sun on the 1st and only about an hour before it by the 30th, so the best views come early in the month. Those figures are our own computation for mid-latitudes; allow a few minutes either way in Vermont. The new moon on April 6 at 7:51 p.m. EDT means dark evenings through mid-month. Saturn is hidden by the Sun’s glare around its April 7 conjunction and is back at dawn in May.

• Looking ahead to May

  Eta Aquariid meteors begin about April 19; peak in the first week of May · Southeast sky before dawn

  The Eta Aquariids peak right at the new moon on May 6, an excellent year, though northern latitudes such as Vermont’s see lower rates than the South. See the moon phases guide for how the phases look.

What can Vermont families do outdoors in April 2027?

Safety notes for April in Vermont