Fruit Trees for Big Sky and the Gallatin Canyon, Montana

On February 6, 2014, the old NOAA station above Meadow Village in Big Sky read −37°F. In the same cold snap the Shenango station on the Gallatin Canyon floor, 1,220 feet lower, read −26°F, and the two mountain stations near 9,000 feet read −25°F. The cold sat in the Meadow, not on the peaks and not at the bottom of the canyon. That's where any talk of fruit trees for Big Sky and the Gallatin Canyon has to start: on a still winter night, sitting low in a basin matters more than sitting high.

This map covers Big Sky, Montana, from Meadow Village, Town Center and Canyon Village up to Mountain Village, Moonlight Basin, Spanish Peaks Mountain Club and the Yellowstone Club, plus the Gallatin Canyon along US 191 down past Moose Creek and Storm Castle to Shenango, in Gallatin and Madison counties in southwest Montana. Type your address in the box on the map to get the number for your own place, and the list of what we sell that has come through it.

How to read this map

Every spot gets a 30-year planning low, the same number our cold hardiness calculator uses. It's a safe planning number that leans a little cold, not the record. The MFTC zone is that number in half zones. "Typical winter" is an average year's coldest night, the kind of number USDA zones are built on, which is why USDA zones read warmer than ours. The spring layer shows how many degrees warmer or colder a spot runs than the Big Sky pin, on the Meadow floor, on a still, clear night at bloom.

The middle of the growing ground plans for −41°F (MFTC 2b), half of it falls between −42°F and −40°F, and nearly all of it between −44°F and −38°F, so this is a 2b and 3a map end to end. The warm end is open slope a few hundred feet above the floor: within 3 miles of town the benches 100 to 700 feet up plan for a median −39°F and the warmest tenth of the ground −37°F. The cold end is the floor of the lower canyon toward the north edge of the map, −44°F to −45°F. The Big Sky pin, our reference, plans for −41°F (MFTC 2b), with a typical winter low of −26°F. The spring layer spreads much wider, and that's where picking your spot pays.

Why the map looks the way it does

Big Sky sits on the east side of the Madison Range, with Lone Mountain (11,167 feet) to the west and the Spanish Peaks to the north. The Meadow, first called the Gallatin Canyon Basin, is an alpine valley around 6,200 feet. The Middle Fork of the Gallatin and the South Fork of the West Fork drain it east to the Gallatin near the US 191 junction and Canyon Village, about 5,900 to 6,000 feet, and the river runs north through its narrow canyon between the Madison and Gallatin ranges to the Gallatin Valley. On a clear, calm night the cold air made on the slopes and high meadows slides down the forks into the Meadow and down the side creeks into the canyon. That's your airshed: high ground that makes the cold, and a basin and a canyon floor that catch it.

The Meadow is the cold hole. The old Big Sky station (NOAA's Big Sky 2WNW, 6,590 feet, about 1.3 miles west-northwest of Meadow Village and 350 feet above it) holds the coldest record on the map, −41°F on December 24, 1983, with −40°F in 1978 and 1990. In the February 2014 cold snap it ran 11°F to 12°F colder than both the canyon floor below and the mountain stations 2,300 to 2,600 feet above, and in the January 2007 cold snap it read −33°F against −24°F and −25°F up high. That's a cold pool: the floor radiates its heat to a clear sky, cold drains in off the slopes, and a basin fills with cold air up to its outlet before it spills on downhill. Flat hay ground under deep snow, which is what the Meadow was, is the classic setup.

Above the pool the air is milder. At 7 a.m. on February 11, 2021, OpenSnow's Big Sky report had the resort's village at −9°F and Andesite Mountain, about 1,300 feet higher, at 2°F. The Gallatin avalanche center describes inversions that trap cold and fog in southwest Montana's valleys while the mountains run mild, at times 10°F to 20°F above zero. On our map Beacon Point, a summit near 10,000 feet in the Spanish Peaks, plans for −33°F, 8°F milder than the Big Sky pin.

So why don't the benches win by more on the planning low? Because the worst nights don't all come still. Arctic air often pours in on a wind, and then there's no inversion and higher ground is often colder. On February 16, 2006, Lone Mountain set its record, −34°F, while the Big Sky station read −30°F in the same cold snap, and in the cold snaps of December 2008 and January 2023 the mountain stations ran 3°F to 8°F colder than the stations lower down. The planning low is built from records that hold both kinds of night, which is part of why near town the benches come out only about 3°F milder than the floor, and the warmest tenth of the ground about 4°F. The spring layer is the still-night pattern alone, and there the slopes pull well ahead.

The canyon floor is the other cold sink, and in the two deepest outbreaks of recent years it was the coldest station reporting. On January 13, 2024 the Shenango station, at 5,370 feet, read −36°F while Lone Mountain read −25°F and Yellow Mule −24°F; on December 22, 2022 Shenango read −35°F against −32°F and −31°F up high. Shenango's average yearly low, −19°F, matches Lone Mountain's, 3,500 feet higher. (The Big Sky station had stopped reporting by then.) Deep arctic air can fill whole valleys, and the lower canyon is the lowest ground on the map, the stretch nearest the Gallatin Valley.

There's no big lake to soften anything. Snow matters more: the old Big Sky station averaged about 163 inches of snow a year, the Yellowstone Club gets about 300 and Moonlight Basin about 400. Deep, lasting snow makes the air above it colder, but it's the best root insulation there is.

Meadow Village, Town Center and the Meadow floor

Meadow Village plans for −42°F (MFTC 2b) at 6,247 feet, with a typical winter low of −26°F, and reads 4°F colder than the Big Sky pin on a still bloom night. The pin, about two-thirds of a mile south-southwest on the same floor at 6,318 feet and 20 feet above the local floor, plans for −41°F (MFTC 2b), typical −26°F. Within 3 miles of it the floor plans for a median −42°F, the benches −39°F and the warmest tenth of the ground −37°F. Town Center sits at about the same height: the Hummocks Trail just outside it loops through glacial hummocks and open meadow at about 6,285 feet.

This is the bottom of the pool, and the lots right along the Middle Fork and the South Fork of the West Fork (which runs past Kircher Park) sit lowest and run coldest. A south or west wall is the best spot in town for your tenderest tree, though we haven't found any measurement of a town heat effect here. As Minnesota's extension fruit people put it, "Even 20 feet of elevation drop within an orchard can make a difference," so plant the top of the hummock and give the hollow to currants.

On the floor, plan for −42°F and a cold bloom night. That means the −45°F group and colder: Goodland and Haralson apples, Kerr, Trailman and Centennial applecrabs, and bush fruit. Zestar!® and Carroll (−40°F) are worth a try only on the higher edges. Keep pears and apricots off the floor; they bloom early.

The Meadow's farm history is hay and stock. Frank Crail moved onto his homestead here in spring 1902 and bred a winter wheat for the high country, Crail Fife, that won two bronze medals at the 1904 Louisiana Purchase Exposition; the ranch went to Chet Huntley's group for the resort in 1968. We haven't found a record of an orchard.

The slopes above the Meadow and the old Big Sky station

The best fruit ground on this map is open slope and bench a few hundred feet above the Meadow and the canyon, off the floor and out of the draws. Utah State says ground 50 to 100 feet above the valley floor is less freeze prone, and on spring frost nights the cold layer usually tops out 30 to 200 feet above the ground. Montana State recommends a 4 to 8 percent grade, and Bob Purvis's rule fits: an east slope warms fast on a frosty spring morning, a north slope holds early bloomers back, and a windswept top is no good.

On our map the old Big Sky station's site sits in a draw about 190 feet above the floor, at about 6,600 feet. It plans for −40°F (MFTC 2b), typical −24°F, and reads 3°F warmer than the pin on a still bloom night. The station's own 30-year number is −40°F too, and in the winters it has on file since 1995 its coldest reading was −37°F (February 6, 2014), so the map plans 3°F colder than anything it saw in that time. A draw carries cold air down at night, and this one logged the coldest readings on the map. You want open slope where the cold keeps moving past you and out below.

The ground has its own catch. Weak shale and mudstone underlie much of the Big Sky area, bentonite clay shows along MT 64, and saturated slopes add to the slide risk. Don't flood a slope; we advise drip only anyway. Test drainage first: dig 2 feet, fill, let it drain, refill, and under 10 hours is well drained.

Mountain Village, Moonlight Basin and the resort high country

Mountain Village plans for −40°F (MFTC 2b) at 7,424 feet on our map, on a bench 100 feet above its local floor, with a typical winter low of −24°F. On the spring layer it reads 3°F colder than the Big Sky pin. Moonlight Basin (north face of Lone Mountain, base around 7,000 feet, with the Ulery's Lake neighborhood), Spanish Peaks Mountain Club, the Yellowstone Club and Lone Moose Meadows (the resort's lowest lift base, 6,800 feet) sit in the same high country; type in your address for your number.

Up here the season is the limit, not the winter low. The Lone Mountain station, at 8,880 feet, has 62 frost-free days, and Yellow Mule, at 9,200 feet on Buck Ridge, 68. We haven't found frost dates for the village itself. The resort's terrain faces mostly north and east; when you're short on heat, a south or southeast exposure helps fruit ripen, though it pulls bloom earlier. We'd treat this as bush fruit and crab country: Honeyberry, Montana Black Currant, Golden Currant, Nanking Cherry and Serviceberry (all −50°F), with Kerr or Trailman on your sunniest spot. Moonlight Basin is an elk and grizzly corridor, so fence seriously.

Canyon Village, the US 191 junction and the warm springs

Canyon Village plans for −42°F (MFTC 2b) at 5,988 feet, at the edge of the canyon floor by the river, with a typical winter low of −25°F. It reads 6°F colder than the Big Sky pin on a bloom night, the coldest spring reading of the four named spots in Big Sky. Everything from the Meadow and the Mountain drains down to here.

The river is the odd part. Groundwater from Levinski Ridge, Tick Ridge, Cinnamon Mountain and Buck Ridge comes up through the Madison limestone at springs that hold about 50°F to 55°F, so there's little ice at the US 191 stoplight on very cold days, and on very cold mornings vapor stands over Snowflake Springs and frosts the trees. We haven't found a measurement of what that open water does to the air, and a river bottom is still low ground, so read it as fog and rime, not as a heater.

The better ground is up on the bluffs. The Quarry, a 175-acre former gravel pit on a bluff above US 191 about 2,800 feet south of the junction and 1,200 feet west of the river, is mapped as Philipsburg-Libeg loam and gravelly clay loam on 4 to 8 percent slopes over 60 to 70 feet of layered alluvium: deep, gravelly ground on the grade MSU recommends. Michener Creek and two small wetlands cross it, and those low lines will run colder. On the canyon floor, plant like the Meadow floor. On a bluff or terrace above it, Toka (−45°F) and Brookred (−50°F) plums fit, and pears go on the highest ground. In a canyon, make sure the spot gets at least 6 hours of direct sun; 8 to 10 is better.

The lower canyon: Moose Creek, Storm Castle and Shenango

Downstream of Big Sky the canyon runs past Moose Creek, where Pete Karst's Cold Spring Ranch had a ski tow, and past Storm Castle Bridge and the Shenango Ranger Station the CCC built in the 1930s. The floor of the lower canyon toward the map's north edge is the coldest growing ground on the map, −44°F to −45°F.

The Shenango station, on the canyon floor at 5,370 feet, is the evidence: −36°F on January 13, 2024 and −35°F on December 22, 2022, its two coldest in 18 years, both while the mountain stations ran 3°F to 12°F milder. Its own 30-year number is −41°F; it hasn't read colder than −36°F, so that runs 5°F colder than anything on its record. (NOAA's listed position for it lands on the canyon wall on our map, about 1,400 feet above its listed elevation, so the station table shows a milder map number.)

Down here plant only the −45°F group and colder: Rescue and Trailman (−60°F), September Ruby apple and Dolgo crabapple (−55°F), Kerr and Centennial. No pears or apricots on the bottom. Once the river leaves the canyon for Gallatin Gateway and Bozeman, the Gallatin Valley map covers you. Our grower friends Les McCartney in Bozeman and Ed Schultz, who runs a farm and nursery in Gallatin Gateway, help us rate plants: Ed saw zero winter injury on Centennial after a winter that hit −47°F, and Bud 118 apple rootstock has seen near −50°F at his place, under snow, with no damage. At West Yellowstone or Hebgen Lake, the West Yellowstone and Island Park map covers you.

Spring frost, bloom and a short season at Big Sky

Spring frost follows the same drainage as the winter cold. On the spring layer Meadow Village runs 4°F, Mountain Village 3°F and Canyon Village 6°F colder than the Big Sky pin, while the old station site reads 3°F warmer from just 190 feet up a draw, and open slopes higher up read warmer still. That's a still, clear night's pattern; orchard inversions usually hold only while the wind stays under 3 to 5 mph.

We haven't found frost dates for the Meadow or the canyon floor; the two stations with 1991 to 2020 frost dates are both up high. From 1991 to 2020, Lone Mountain (8,880 feet) had a median last 32°F of June 24 and last 28°F of June 18, and Yellow Mule (9,200 feet) June 22 and June 17. Both had a median first fall 32°F of August 30, and one year in ten the last 32°F came after July 12. The Old Farmer's Almanac calls frost a year-round risk at the old Big Sky station. The University of Vermont calls anything under 135 frost-free days short-season country; up high here it's about half that.

In spring 2026 it was 15°F at Ed Schultz's in Gallatin Gateway during bloom, and he got no fruit at all; even the chokecherry blossoms froze. Open blossoms of nearly every tree fruit start dying near 28°F. But only about 15 percent of apple blossoms need to set for a crop, and haskap flowers take 19°F wide open. Most fruit can lose half its bloom and still crop, though cherries forgive less. At our place in Missoula, Red Lake and Montana Black Currant fruited well after their flower buds saw about 22°F.

Site comes first (the FAO's frost manual calls it the single most important method of frost protection): put early bloomers (apricots, plums, pears, cherries) highest, on open slope out of the draws, and leave the floor to apples, haskap and bush fruit. Mow under 2 inches through bloom, don't till, and water a day or two before a frost. Frost cloth of 0.5, 0.9 and 1.5 ounces per square yard gains about 4°F, 6°F and 8°F. Utah State says apricots in Utah's cold spots fruit about 1 year in every 5 or 6; treat them as a gamble here.

The fall end bites too. The coldest reading of all 2020 at Lone Mountain came on October 25: −16°F. That's the same date Missoula went from mild fall weather to −7°F almost overnight, killing a lot of trees rated plenty hardy on paper because they hadn't gone dormant, including almost all of our own young Bing cherries. Early cold kills at temperatures a January tree shrugs off, so we taper water from mid-August in zone 4 and colder, and at Big Sky we'd add no late nitrogen and no late pruning.

What the weather records say

NOAA station records here are thin. The old Big Sky station (6,590 feet, 32 years between 1968 and 2014) holds the coldest reading, −41°F on December 24, 1983, and averaged −30°F for its coldest night of the year. Shenango (5,370 feet, 18 years) has a record of −36°F on January 13, 2024. Lone Mountain (8,880 feet, 32 years) has −34°F on February 16, 2006, and Yellow Mule (9,200 feet, 20 years) hit −31°F twice, on February 17, 2006 and December 22, 2022. In the big outbreaks since 1998 the low stations ran far colder than the mountain stations in some (January 2007, February 2014, January 2024) and the mountains ran colder in others (February 2006, December 2008, January 2023).

USDA's 2023 map is built on the average of each winter's coldest night from 1991 to 2020. We couldn't confirm its zone for Big Sky's ZIP code, 59716, so check USDA's ZIP lookup. On our map an average year's coldest night at the Big Sky pin is −26°F, in USDA's zone 4a range, while the planning low is −41°F, MFTC 2b. A gap like that is normal: NOAA station records show the worst night in about 30 winters runs a median 13°F below a station's average winter low.

What you can grow at Big Sky

Big Sky is east of the Divide (the Gallatin runs to the Missouri at Three Forks). MSU's advice for Montana is that apples are the most dependable tree fruit, then pears, that plums and apricots depend on the microclimate, and that sweet cherries and peaches belong only in microclimates west of the Divide. Every list below clears the planning low; for the short season, favor early-ripening kinds (check each product page). At MSU's Bozeman planting, about 1,350 feet below the Meadow, Mount Royal plums were picked September 22.

Open slopes and benches above the floor, about −37°F to −39°F (MFTC 3a)

Apples: Zestar!® and Carroll (−40°F), both survivors at MSU's Bozeman planting, plus Goodland and Haralson (−45°F). Pears: Luscious and Summercrisp (−40°F). Plums: Toka (−45°F), Mount Royal and Pipestone (−40°F), MSU's three best plums at Bozeman. Cherries: Evan's Bali (−45°F) and Meteor (−40°F) tart cherries, and Romeo and Juliet dwarf cherries (−50°F). Westcot (−45°F) and Debbie's Gold (−50°F) apricots clear the winter but bloom first, a gamble for the highest ground only. Plums, pears and most apples need a second variety as a pollenizer; our pollination maps show what blooms together.

The Meadow, Canyon Village and Mountain Village, −40°F to −42°F (MFTC 2b)

Apples: Goodland, Haralson and Frostbite (−45°F), Wealthy, Mantet and Parkland (−50°F). Applecrabs: Kerr, Centennial and Chestnut (−50°F) and Trailman (−60°F); if you only plant one tree, make it Kerr or Trailman. Plums, on a rise: Toka (−45°F), Brookred and Ptitsin #5 (−50°F). Pears only on your highest ground: Bolshaya or Krasnobokaya (−50°F). Bush fruit: Honeyberry, Montana Black Currant, Golden Currant, Nanking Cherry, Serviceberry, Aronia Berry and Sophia Groundcover raspberry (all −50°F). Worth a try on the warmer edges, out of the creek bottoms: Zestar!® and Carroll (−40°F).

The lower canyon floor and the coldest bottoms, −43°F to −45°F (MFTC 2b)

Crabs: Trailman and Rescue (−60°F), Dolgo (−55°F), Kerr, Centennial and Chestnut (−50°F). Apples: September Ruby (−55°F), Parkland, Mantet and Norda (−50°F), with Haralson and Goodland (−45°F) just clearing it. Plums, on a rise: Brookgold, Brookred and Prairie Red (−50°F). Bush fruit: Honeyberry, Montana Black Currant, Golden Currant, Nanking Cherry, Buffaloberry, Chokecherry and Honeoye strawberries (−50°F).

Roots, snow, critters and the local troubles

Snow protects roots: 4 to 10 inches insulates soil well, and dormant apple roots are seriously injured near 10°F while the wood above takes about −40°F, so the trouble spots are bare ones, like a plowed driveway edge or a windswept bench. Pick a hardy rootstock like Bud 118, plant the graft union 2 to 3 inches above the soil as MSU advises, and mulch. Voles girdle trunks under deep snow, and the snow buries fences and trunk guards, so go tall on both; MSU says fence at least 7 feet for deer, elk and moose. Hail and wind can snap young trees at the graft.

Questions people ask

What growing zone is Big Sky, Montana?

The Big Sky pin plans for −41°F, MFTC zone 2b, and nearly all the growing ground falls between −44°F and −38°F, MFTC 2b to 3a. We couldn't confirm USDA's 2023 zone for ZIP 59716. USDA's map is built on an average winter's coldest night, which our map puts at about −26°F in town (zone 4a's range); ours is set by the bad night we plan for.

When is the last frost in Big Sky?

Late. The two stations with frost dates on file, Lone Mountain and Yellow Mule near 9,000 feet, have a median last 32°F of June 22 to 24 and a first fall 32°F of August 30, and one year in ten the last frost comes after July 12. We haven't found frost dates for the Meadow or the canyon floor, and the Old Farmer's Almanac calls frost a year-round risk at the old Big Sky station.

Can you grow apples in Big Sky?

Yes, if you pick for −41°F and a short season. Goodland and Haralson (−45°F) clear the Meadow's number, Kerr, Centennial and Trailman applecrabs clear it with room to spare, and Zestar!® and Carroll (−40°F) fit the open slopes above the floor. Plant off the Meadow floor and out of the draws, behind a 7-foot fence.

Why is Big Sky so cold?

The Meadow is a basin that fills with cold air on still winter nights. The old Big Sky station above Meadow Village holds the coldest record on the map, −41°F on December 24, 1983, and in the February 2014 cold snap it read −37°F while the canyon floor 1,220 feet lower and the mountain stations near 9,000 feet read −25°F to −26°F. Milder air sits on top of the pool.

Does the Gallatin River freeze at Big Sky?

Partly. Springs at about 50°F to 55°F keep it open near the US 191 stoplight and from the 320 Ranch up to the park, while it freezes across from above the junction up to the 320 Ranch and builds ice downstream through the canyon. Anchor ice and ice jams can raise it fast; a jam that broke loose in December 2012 sent ice and whole trees past the Big Sky turn.

Warmer spots, colder spots

Here's the number to plan for at named places on the map, warmest first. Each one is the 1-in-30-year low for that spot: the cold hardiness calculator's number from the same weather stations, sharpened by our microclimate model for the ground right there. Zone is our MFTC zone, set by that one bad night, not by an average.

The weather stations behind it

These are the long-record stations in and around this map, with each one's own numbers since the winter of 1995-96. The last column is this map's 30-year number right at the station, which won't match the station exactly: it's a blend of the stations around it, the way the calculator works everywhere.

Source: NOAA records through ACIS, winters 1995-96 through 2025-26. What the "carried forward," "gaps filled" and AWOS rows mean is explained in how our microclimate maps work.