Coalmont, Pennsylvania, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
These conditions suit cabbage, hazelnut, lavender, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Coalmont, 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 Coalmont 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 Coalmont — soil, climate, flood, and parcel records. How we handle your address.
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Coalmont — the short answer
Coalmont, Pennsylvania: USDA zone 6b, about 214 days between hard freezes, across 77 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~214
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 77 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 6b is Coalmont's average, not your lot's — a low corner or a tree line moves it. Against Coalmont's 214-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Coalmont
Each reading below is measured for Coalmont itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredCoalmont runs about 214 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredCoalmont sits in USDA hardiness zone 6b.
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 Coalmont is in
Coalmont sits in the Central Appalachians — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Coalmont's own centroid, and it is not what its county reads: Huntingdon County is mostly Ridge and Valley. The wider page above you is answering a different question about different ground.
What Grows in Coalmont
Every plant below cleared Coalmont's own zone 6b and its 214-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Coalmont?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 10; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 7 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 7 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Coalmont
Spotted lanternfly documented 3 miles from Coalmont, first recorded 2022. What to watch for.
What's on the federal record near Coalmont
Closest first, within ~10 miles of Coalmont. Listing isn't leaking, and distance isn't exposure.
- HU 147Nitrate · 300 ft
- MCDONALDS STOREUnderground Storage Tanks · 1700 ft
- SAXTON CAR WASHUnderground Storage Tanks · 1.4 mi
- HU 146Nitrate · 1.8 mi
- MARTIN OIL CO MARTIN GENERAL STOREBrownfields · 2.2 mi
- MARTIN GEN STORE 201Underground Storage Tanks · 2.2 mi
- SAXTON EXPRESS 229Underground Storage Tanks · 2.3 mi
- SAXTON SUB DIST OFCUnderground Storage Tanks · 2.3 mi
- WARRIORS PATH STATE PARKUnderground Storage Tanks · 2.4 mi
- PEPSI COLA BOTTLING COUnderground Storage Tanks · 2.5 mi
- STOUDENOUR CHEVROLET INCBrownfields · 2.6 mi
- FORRESTERS AUTO BODYBrownfields · 2.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Coalmont'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 Coalmont.
Total Sites
175
within ~10 miles of Coalmont
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Coalmont
Severity Distribution
within ~10 miles of Coalmont
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Coalmont, two things run higher than the national average within ~10 miles of Coalmont — CAFO (5 sites) and Nitrate (72 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Coalmont
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 Coalmont average
Your land is one point inside Coalmont
Everything above resolves to Coalmont as a whole — one PHZM band and one 28°F frost record, read across 77 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 Coalmont Average
Coalmont Average
- ●USDA Zones 6b, averaged across Coalmont
- ●One soil character for all of Coalmont
- ●Frost dates read at Coalmont's scale: Apr 7 to Nov 7
YOUR Parcel
- ✓Your exact zone, not Coalmont's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Coalmont
Pull a site-specific report for your exact address in Coalmont, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Coalmont averages can't show:
We read public map data around Coalmont — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Coalmont average
How we know this about Coalmont
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 Coalmont’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 Coalmont
When does frost risk typically end in Coalmont?
The last hard freeze (28°F) in Coalmont typically lands around Apr 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 Apr 28.
When is the first frost in Coalmont?
The first hard freeze (28°F) in Coalmont typically arrives around Nov 7, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 24, so the watching starts about Oct 8 — about 214 days after the spring freeze cleared.
How long is the growing season in Coalmont?
Measured between 28°F hard freezes, Coalmont sees about 214 frost-free days — roughly Apr 7 through Nov 7, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 28 to Oct 24, about 179 days.
Is the soil safe to grow vegetables in Coalmont?
The federal record around Coalmont is a meaningful one — 175 documented sites, mostly Nitrate entries (72), the nearest Nitrate record under a tenth of a mile 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 I protect my plants from frost in Coalmont?
From about Oct 8 the job here turns from planting to protecting — the last start even a 30-day crop can finish. As the season closes around the first 28°F hard freeze near Nov 7 (NOAA 1991–2020 climate normals), three moves buy time: row cover or an old sheet over tender plants on still, clear nights; water the soil the afternoon before a freeze, so it holds warmth overnight; and harvest tomatoes, peppers and basil before Nov 7. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Coalmont's scale — its 6b band and its 214-day season. Your yard writes its own version of Coalmont'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 Coalmont’s own scale
7 of the readings below were taken at Coalmont's own scale — its own ~214-day season between 28°F freezes, the 77 acres it covers and 175 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Coalmont's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Coalmont's own 28°F hard-freeze dates, about Apr 7 and Nov 7 and the ~214-day span between themNOAA 1991–2020 Climate Normals
- 175 documented contamination sites on the federal record near Coalmont, the closest Nitrate record under a tenth of a mile out from the town centreFederal environmental registers
- Coalmont's boundary and the 77 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~214-day seasonGrowable Ground crop-matching engine
- Coalmont sits in the Central Appalachians — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Coalmontlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Coalmont's 77 acres read through its county's SSURGO summaryfrom Huntingdon County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Huntingdon County
- The growing challenges every Pennsylvania grower plans around — written at state scale, so they stay on the state guidefrom Pennsylvania
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Huntingdon County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Coalmont's 77 acreswhy one lot differs from the next →
- Which side of Coalmont you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 77 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record under a tenth of a mile 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 Coalmont-wide figureread your own land →
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