Fort Yukon, Alaska, sits in USDA hardiness zone 1a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Growers here do well with cabbage, potato, rhubarb, and kale — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Fort Yukon, no two yards are alike.
A low spot, a south-facing slope, or a stand of trees moves the frost date and sun across a single Fort Yukon lot. Enter your address and we'll score 1,086 plants against your land's actual soil, sun, and frost.
We read public map data around Fort Yukon — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Fort Yukon — the short answer
Fort Yukon, Alaska: USDA zone 1a, about 118 days between hard freezes, across 4K acres of city.
- USDA zone
- 1a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 15
- Yukon-Koyukuk Census Area normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Sep 10
- Yukon-Koyukuk Census Area normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~118
- Yukon-Koyukuk Census Area normal — NOAA 1991–2020, nearest to this town
- City area
- 4K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Yukon-Koyukuk Census Area’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 1a is Fort Yukon's average, not your lot's — a low corner or a tree line moves it. Against Fort Yukon's 118-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Fort Yukon
Each reading below is measured for Fort Yukon itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsFort Yukon runs about 118 days between hard freezes (read from Yukon-Koyukuk Census Area, the closest normal to Fort Yukon) — a short growing season.
Long-maturing crops like melons, sweet potatoes, and winter squash can run out of runway before the first hard freeze, ripening late or not at all.
Lead with fast-maturing varieties, and stretch the season on both ends with cold frames, low tunnels, or a greenhouse.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredFort Yukon sits in USDA hardiness zone 1a.
The zone sets which perennials, shrubs, and fruit trees live through an average winter here — a plant rated for a colder zone is a safe bet, one rated warmer needs winter protection or gets treated as an annual.
Match perennials and fruit to the zone before you buy, so nothing you plant is a gamble against the cold.
USDA PHZM 2023
What Grows in Fort Yukon
Plants matched to Fort Yukon's USDA zones 1a, ordered by how much hardiness margin each has here — the ones with room to spare at both ends of this town's band lead. Each links to its full growing profile.
Is it too late to plant in Fort Yukon?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Apr 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 10 — long-season crops need about 90 days of runway, quick greens only 30. When the window is tight, the fall moves are quick ones — baby greens, radishes, and garlic set for next season.
What's on the federal record near Fort Yukon
Closest first, within ~10 miles of Fort Yukon. Listing isn't leaking, and distance isn't exposure.
- USAF LRRS FORT YUKONSuperfund · 0.9 mi
- USAF LRRS FORT YUKONBrownfields · 0.9 mi
- FAA - Fort Yukon Vortac FacilityUnderground Storage Tanks · 1.1 mi
- CROWLEY PETROLEUM DISTRIBUTION FORT YUKONBrownfields · 1.1 mi
- FT Yukon Unit Office AFSUnderground Storage Tanks · 1.2 mi
- ADF&G - Fort YukonUnderground Storage Tanks · 1.3 mi
- FA02001217DAAD1 001Nitrate · 1.9 mi
Measured from Fort Yukon's center, not your beds. Run your own address for what's upwind of you specifically.
Environmental Intelligence
The counts behind that headline — every source type on the record near Fort Yukon.
Total Sites
9
within ~10 miles of Fort Yukon
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Fort Yukon
Severity Distribution
within ~10 miles of Fort Yukon
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Fort Yukon
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,086 plant recommendations.
25+ data sources read at your address, not the Fort Yukon average
Your land is one point inside Fort Yukon
Everything above resolves to Fort Yukon as a whole — one PHZM band, read across 4K acres, with hard-freeze dates borrowed from Yukon-Koyukuk Census Area’s record because no 30-year normal resolves at this city’s own centroid. Your parcel is one point inside that footprint. Slope, tree cover, a low spot that pools cold air, and what is in the soil are all resolved at the address, and none of them are visible at city scale. That is the honest boundary of this page, and the reason the next step is a reading of your own ground rather than a better local average.
Your Lot vs the Fort Yukon Average
Fort Yukon Average
- ●USDA Zones 1a, averaged across Fort Yukon
- ●One soil character for all of Fort Yukon
- ●Frost dates read at Fort Yukon's scale: May 15 to Sep 10
YOUR Parcel
- ✓Your exact zone, not Fort Yukon's 1a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Fort Yukon
Pull a site-specific report for your exact address in Fort Yukon, Alaska — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Fort Yukon averages can't show:
We read public map data around Fort Yukon — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Fort Yukon average
How we know this about Fort Yukon
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Yukon-Koyukuk Census Area’s record, because none resolves here; boundaries and acreage from US Census TIGER/Line 2025; the contamination records from the federal sources named in their beats above. Soil is not read at city grain anywhere on this page — there is no city-resolution survey in our data, which is why you will find no soil grid here rather than a statewide one wearing a local label. The resolution ledger below names every figure this page inherited.
Common questions about Fort Yukon
When does frost risk typically end in Fort Yukon?
The last hard freeze (28°F) in Fort Yukon typically lands around May 15, per NOAA 1991–2020 climate normals — earlier than the light-frost dates most charts quote. That marks the hard freeze, not the last light frost — lighter frosts keep biting past it, which is why tender transplants here wait until about Jun 5.
When is the first frost in Fort Yukon?
The first hard freeze (28°F) in Fort Yukon typically arrives around Sep 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Aug 27, so the watching starts about Aug 11 — about 118 days after the spring freeze cleared.
How long is the growing season in Fort Yukon?
Measured between 28°F hard freezes, Fort Yukon sees about 118 frost-free days — roughly May 15 through Sep 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 5 to Aug 27, about 83 days.
Is the soil safe to grow vegetables in Fort Yukon?
The federal record around Fort Yukon is a meaningful one — 9 documented sites, mostly Underground Storage Tanks entries (3), the nearest Superfund record about 0.9 miles out — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.
How do gardeners stretch the season in Fort Yukon?
With about 118 frost-free days between hard freezes, Fort Yukon rewards the classic extension moves: floating row cover buys roughly two to four extra weeks at each shoulder — on this season that is a working window nearer 146 to 174 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 15 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Fort Yukon's scale — its 1a band and its 118-day season. Your yard writes its own version of Fort Yukon's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
What this page reads at Fort Yukon’s own scale
3 of the readings below were taken at Fort Yukon's own scale — the 4,294 acres it covers and 9 documented sites around it; 6 are borrowed from a wider read, named and linked below.
Measured here
- Fort Yukon's own USDA hardiness band, zones 1aUSDA PHZM 2023
- 9 documented contamination sites on the federal record near Fort Yukon, the closest Superfund record about 0.9 miles out from the town centreFederal environmental registers
- Fort Yukon's boundary and the 4,294 acres inside itUS Census TIGER/Line 2025
Inherited from a wider read
- The 28°F hard-freeze dates — Fort Yukon has no normal of its own, so its county's is the closest measured readfrom Yukon-Koyukuk Census Area
- Soil character — no town-scale survey exists, so Fort Yukon's 4,294 acres read through its county's SSURGO summaryfrom Yukon-Koyukuk County
- The candidate plant list — Alaska's curated set, filtered to this zone band and re-ordered by how much margin each has herefrom Alaska
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Yukon-Koyukuk County
- The growing challenges every Alaska grower plans around — written at state scale, so they stay on the state guidefrom Alaska
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Yukon-Koyukuk County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Fort Yukon's 4,294 acreswhy one lot differs from the next →
- Which side of Fort Yukon you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,294 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Superfund record about 0.9 miles out, measured from the town centrehow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — measured at your address, and averaged away by any Fort Yukon-wide figureread your own land →