Whitehall, Michigan, sits in USDA hardiness zone 6b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Crops well matched to these conditions include cabbage, blackberry, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Whitehall, 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 Whitehall 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 Whitehall — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Whitehall — the short answer
Whitehall, Michigan: USDA zone 6b, about 186 days between hard freezes, across 2K acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~186
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 2K 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 Whitehall's average, not your lot's — a low corner or a tree line moves it. Against Whitehall's 186-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Whitehall
Each reading below is measured for Whitehall itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWhitehall runs about 186 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredWhitehall 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 Whitehall is in
Whitehall sits in the Southern Michigan/Northern Indiana Drift Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Whitehall's own centroid rather than borrowed from Muskegon County.
What Grows in Whitehall
Every plant below cleared Whitehall's own zone 6b and its 186-day season. Each card opens that plant's Michigan profile. How we score.
Is it too late to plant in Whitehall?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 25 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 28 — long-season crops need about 90 days of runway, quick greens only 30. As the window narrows, the plantings just get faster — fall brassicas, then greens, then garlic to finish.
What's on the federal record near Whitehall
Closest first, within ~10 miles of Whitehall. Listing isn't leaking, and distance isn't exposure.
- Whitehall District SchoolsUnderground Storage Tanks · 2100 ft
- Test Cell/howmet R & DUnderground Storage Tanks · 0.5 mi
- HOWMET CORPORATION, PLANT 4Toxics Release Inventory · 0.5 mi
- HOWMET CORPORATION, PLANT 4Brownfields · 0.5 mi
- Five A Oil CoUnderground Storage Tanks · 0.6 mi
- HOWMET RESEARCH CENTERToxics Release Inventory · 0.6 mi
- HOWMET RESEARCH CENTERBrownfields · 0.6 mi
- HOWMET CORPORATIONToxics Release Inventory · 0.6 mi
- HOWMET CORPORATION, PLANTS 1 & 3Toxics Release Inventory · 0.6 mi
- HOWMET CORPORATION, PLANTS 1 & 3Brownfields · 0.6 mi
- TWIN CITY SERVICE INCBrownfields · 0.6 mi
- White Lake Ez MartUnderground Storage Tanks · 0.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Whitehall'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 Whitehall.
Sources Checked
within ~10 miles of Whitehall
Severity Distribution
within ~10 miles of Whitehall
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Whitehall, two things run higher than the national average within ~10 miles of Whitehall — Superfund (7 sites) and Toxics Release Inventory (15 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Whitehall
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 Whitehall average
Your land is one point inside Whitehall
Everything above resolves to Whitehall as a whole — one PHZM band and one 28°F frost record, read across 2K 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 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 Whitehall Average
Whitehall Average
- ●USDA Zones 6b, averaged across Whitehall
- ●One soil character for all of Whitehall
- ●Frost dates read at Whitehall's scale: Apr 25 to Oct 28
YOUR Parcel
- ✓Your exact zone, not Whitehall's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Whitehall
Pull a site-specific report for your exact address in Whitehall, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Whitehall averages can't show:
We read public map data around Whitehall — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Whitehall average
How we know this about Whitehall
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 Whitehall’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 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 Whitehall
When does frost risk typically end in Whitehall?
The last hard freeze (28°F) in Whitehall typically lands around Apr 25, 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 16.
When is the first frost in Whitehall?
The first hard freeze (28°F) in Whitehall typically arrives around Oct 28, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 14, so the watching starts about Sep 28 — about 186 days after the spring freeze cleared.
How long is the growing season in Whitehall?
Measured between 28°F hard freezes, Whitehall sees about 186 frost-free days — roughly Apr 25 through Oct 28, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 16 to Oct 14, about 151 days.
Is the soil safe to grow vegetables in Whitehall?
The federal record around Whitehall runs heavier than most — 213 documented sites, mostly Underground Storage Tanks entries (101), the nearest Underground Storage Tanks record about 0.4 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Whitehall?
From about Sep 28 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 Oct 28 (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 Oct 28. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Whitehall's scale — its 6b band and its 186-day season. Your yard writes its own version of Whitehall'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 Whitehall’s own scale
6 of the readings below were taken at Whitehall's own scale — its own ~186-day season between 28°F freezes, the 2,058 acres it covers and 213 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Whitehall's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Whitehall's own 28°F hard-freeze dates, about Apr 25 and Oct 28 and the ~186-day span between themNOAA 1991–2020 Climate Normals
- 213 documented contamination sites on the federal record near Whitehall, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Whitehall's boundary and the 2,058 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~186-day seasonGrowable Ground crop-matching engine
- The ecoregion at Whitehall's own centroid, the Southern Michigan/Northern Indiana Drift PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Whitehall's 2,058 acres read through its county's SSURGO summaryfrom Muskegon County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Muskegon County
- The growing challenges every Michigan grower plans around — written at state scale, so they stay on the state guidefrom Michigan
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Muskegon County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Whitehall's 2,058 acreswhy one lot differs from the next →
- Which side of Whitehall you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,058 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Whitehall-wide figureread your own land →