Coffee Creek, Montana, sits in USDA hardiness zone 4a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Well-matched crops include cabbage, cranberry, cilantro, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Coffee Creek, 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 Coffee Creek 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 Coffee Creek — soil, climate, flood, and parcel records. How we handle your address.
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Coffee Creek — the short answer
Coffee Creek, Montana: USDA zone 4a, about 146 days between hard freezes, across 236 acres of town.
- USDA zone
- 4a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~146
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 236 acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 4a is Coffee Creek's average, not your lot's — a low corner or a tree line moves it. Against Coffee Creek's 146-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Coffee Creek
Each reading below is measured for Coffee Creek itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredCoffee Creek runs about 146 days between hard freezes — 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
MeasuredCoffee Creek sits in USDA hardiness zone 4a.
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
The kind of country Coffee Creek is in
Coffee Creek sits in the Northwestern Great Plains — EPA Level III, inside the wider Great Plains. That is read at Coffee Creek's own centroid rather than borrowed from Fergus County.
What Grows in Coffee Creek
Every plant below cleared Coffee Creek's own zone 4a and its 146-day season. Each card opens that plant's Montana profile. How we score.
Is it too late to plant in Coffee Creek?
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 9; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 7 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 30 — long-season crops need about 90 days of runway, quick greens only 30. In a season this compact, fast finishers and cold-hardy greens do the late work, and garlic tucked in before the freeze repays you next summer.
What's on the federal record near Coffee Creek
Closest first, within ~10 miles of Coffee Creek. Listing isn't leaking, and distance isn't exposure.
- NEMECS REPAIRBrownfields · 900 ft
- 19N13E29BCCC01Nitrate · 2.5 mi
- 19N13E29BCBD01Nitrate · 2.6 mi
- 19N13E29AAAA01Nitrate · 2.7 mi
- 19N13E29BCAA01Nitrate · 2.7 mi
- 19N13E29BABB01Nitrate · 2.8 mi
- 19N13E22BBDA01Nitrate · 3.8 mi
- 18N12E02CB 02Nitrate · 4.1 mi
- SCHMITT LIVESTOCK LLCCAFO · 4.5 mi
- 19N13E12CDC 01Nitrate · 5.1 mi
- 19N12E14DBA 01Nitrate · 5.4 mi
- DONALD STOUTUnderground Storage Tanks · 5.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Coffee Creek'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 Coffee Creek.
Total Sites
63
within ~10 miles of Coffee Creek
Risk Level
Moderate
Highest-severity
1 concentrated animal feeding operation
Sources Checked
within ~10 miles of Coffee Creek
Severity Distribution
within ~10 miles of Coffee Creek
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Coffee Creek, Nitrate runs higher than the national average — 42 sites within ~10 miles of Coffee Creek. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Coffee Creek
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 Coffee Creek average
Your land is one point inside Coffee Creek
Everything above resolves to Coffee Creek as a whole — one PHZM band and one 28°F frost record, read across 236 acres. 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 town 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 Coffee Creek Average
Coffee Creek Average
- ●USDA Zones 4a, averaged across Coffee Creek
- ●One soil character for all of Coffee Creek
- ●Frost dates read at Coffee Creek's scale: May 7 to Sep 30
YOUR Parcel
- ✓Your exact zone, not Coffee Creek's 4a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Coffee Creek
Pull a site-specific report for your exact address in Coffee Creek, Montana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Coffee Creek averages can't show:
We read public map data around Coffee Creek — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Coffee Creek average
How we know this about Coffee Creek
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Coffee Creek’s own record; 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 town grain anywhere on this page — there is no town-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 Coffee Creek
When does frost risk typically end in Coffee Creek?
The last hard freeze (28°F) in Coffee Creek typically lands around May 7, 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 May 28.
When is the first frost in Coffee Creek?
The first hard freeze (28°F) in Coffee Creek typically arrives around Sep 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 16, so the watching starts about Aug 31 — about 146 days after the spring freeze cleared.
How long is the growing season in Coffee Creek?
Measured between 28°F hard freezes, Coffee Creek sees about 146 frost-free days — roughly May 7 through Sep 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 28 to Sep 16, about 111 days.
Is the soil safe to grow vegetables in Coffee Creek?
The federal record around Coffee Creek shows 63 documented sites, mostly Nitrate entries (42), the nearest Brownfields record about 0.2 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do gardeners stretch the season in Coffee Creek?
With about 146 frost-free days between hard freezes, Coffee Creek 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 174 to 202 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 7 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Coffee Creek's scale — its 4a band and its 146-day season. Your yard writes its own version of Coffee Creek'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 Coffee Creek’s own scale
6 of the readings below were taken at Coffee Creek's own scale — its own ~146-day season between 28°F freezes, the 236 acres it covers and 63 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Coffee Creek's own USDA hardiness band, zones 4aUSDA PHZM 2023
- Coffee Creek's own 28°F hard-freeze dates, about May 7 and Sep 30 and the ~146-day span between themNOAA 1991–2020 Climate Normals
- 63 documented contamination sites on the federal record near Coffee Creek, the closest Brownfields record about 0.2 miles out from the town centreFederal environmental registers
- Coffee Creek's boundary and the 236 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4a and a ~146-day seasonGrowable Ground crop-matching engine
- The ecoregion at Coffee Creek's own centroid, the Northwestern Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Coffee Creek's 236 acres read through its county's SSURGO summaryfrom Fergus County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Fergus County
- The growing challenges every Montana grower plans around — written at state scale, so they stay on the state guidefrom Montana
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Fergus County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Coffee Creek's 236 acreswhy one lot differs from the next →
- Which side of Coffee Creek you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 236 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.2 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 Coffee Creek-wide figureread your own land →
More in Montana
Wider growing context
What grows across MontanaCoffee Creek sits outside our named growing regions, so Montana as a whole is its closest context here.
Nearby growing guides