Normal, Illinois, sits in USDA hardiness zone 6a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
On paper, cabbage, hazelnut, lavender, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Normal, 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 Normal 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 Normal — soil, climate, flood, and parcel records. How we handle your address.
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Normal — the short answer
Normal, Illinois: USDA zone 6a, about 204 days between hard freezes, across 12K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 9
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~204
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 12K 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 6a is Normal's average, not your lot's — a low corner or a tree line moves it. Against Normal's 204-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Normal
Each reading below is measured for Normal itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredNormal runs about 204 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
MeasuredNormal sits in USDA hardiness zone 6a.
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 Normal is in
Normal sits in the Central Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Normal's own centroid rather than borrowed from McLean County.
What Grows in Normal
Every plant below cleared Normal's own zone 6a and its 204-day season. Each card opens that plant's Illinois profile. How we score.
Is it too late to plant in Normal?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 12; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 9 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 30 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
What's on the federal record near Normal
Closest first, within ~10 miles of Normal. Listing isn't leaking, and distance isn't exposure.
- Mclean County Nursing HomeUnderground Storage Tanks · 1300 ft
- Physical PlantUnderground Storage Tanks · 2000 ft
- Super Pantry #21Underground Storage Tanks · 2300 ft
- Calvary AcresUnderground Storage Tanks · 2500 ft
- Circke K #139Underground Storage Tanks · 2500 ft
- Terry's Amoco Food ShopUnderground Storage Tanks · 2600 ft
- AMOCO, TERRYS FOODSHOPBrownfields · 2600 ft
- ILLINOIS STATE UNIVERSITYBrownfields · 0.5 mi
- Fire Department/Station #2Underground Storage Tanks · 0.5 mi
- No Facility Name ProvidedUnderground Storage Tanks · 0.6 mi
- 1404 Clark Service StationUnderground Storage Tanks · 0.6 mi
- ALEXANDER MANUFACTURINGBrownfields · 0.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Normal'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 Normal.
Total Sites
515
within ~10 miles of Normal
Risk Level
Elevated
Highest-severity
15 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Normal
Severity Distribution
within ~10 miles of Normal
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 Normal
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 Normal average
Your land is one point inside Normal
Everything above resolves to Normal as a whole — one PHZM band and one 28°F frost record, read across 12K 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 Normal Average
Normal Average
- ●USDA Zones 6a, averaged across Normal
- ●One soil character for all of Normal
- ●Frost dates read at Normal's scale: Apr 9 to Oct 30
YOUR Parcel
- ✓Your exact zone, not Normal's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Normal
Pull a site-specific report for your exact address in Normal, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Normal averages can't show:
We read public map data around Normal — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Normal average
How we know this about Normal
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 Normal’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 Normal
When does frost risk typically end in Normal?
The last hard freeze (28°F) in Normal typically lands around Apr 9, 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 30.
When is the first frost in Normal?
The first hard freeze (28°F) in Normal typically arrives around Oct 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 16, so the watching starts about Sep 30 — about 204 days after the spring freeze cleared.
How long is the growing season in Normal?
Measured between 28°F hard freezes, Normal sees about 204 frost-free days — roughly Apr 9 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 30 to Oct 16, about 169 days.
Is the soil safe to grow vegetables in Normal?
The federal record around Normal is a meaningful one — 515 documented sites, mostly Underground Storage Tanks entries (302), the nearest Underground Storage Tanks record about 0.2 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 I protect my plants from frost in Normal?
From about Sep 30 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 30 (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 30. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Normal's scale — its 6a band and its 204-day season. Your yard writes its own version of Normal'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 Normal’s own scale
6 of the readings below were taken at Normal's own scale — its own ~204-day season between 28°F freezes, the 11,957 acres it covers and 515 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Normal's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Normal's own 28°F hard-freeze dates, about Apr 9 and Oct 30 and the ~204-day span between themNOAA 1991–2020 Climate Normals
- 515 documented contamination sites on the federal record near Normal, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Normal's boundary and the 11,957 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~204-day seasonGrowable Ground crop-matching engine
- The ecoregion at Normal's own centroid, the Central Corn Belt PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Normal's 11,957 acres read through its county's SSURGO summaryfrom McLean County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom McLean County
- The growing challenges every Illinois grower plans around — written at state scale, so they stay on the state guidefrom Illinois
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom McLean County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Normal's 11,957 acreswhy one lot differs from the next →
- Which side of Normal you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 11,957 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Normal-wide figureread your own land →
More in Illinois
Wider growing context
What grows across IllinoisNormal sits outside our named growing regions, so Illinois as a whole is its closest context here.
Nearby growing guides