Norridge, Illinois, sits in USDA hardiness zone 6a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Expect cabbage, blueberry, lavender, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Norridge, 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 Norridge 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 Norridge — soil, climate, flood, and parcel records. How we handle your address.
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Norridge — the short answer
Norridge, Illinois: USDA zone 6a, about 221 days between hard freezes, across 1K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~221
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 Norridge's average, not your lot's — a low corner or a tree line moves it. Against Norridge's 221-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Norridge
Each reading below is measured for Norridge itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredNorridge runs about 221 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
MeasuredNorridge 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 Norridge is in
Norridge sits in the Central Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Norridge's own centroid rather than borrowed from Cook County.
What Grows in Norridge
Every plant below cleared Norridge's own zone 6a and its 221-day season. Each card opens that plant's Illinois profile. How we score.
Is it too late to plant in Norridge?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Mar 6; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 3 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 10 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around Norridge
Spotted lanternfly documented 9 miles from Norridge, first recorded 2023. What to watch for.
What's on the federal record near Norridge
Closest first, within ~10 miles of Norridge. Listing isn't leaking, and distance isn't exposure.
- Westlawn Cemetery Assoc IncUnderground Storage Tanks · 1500 ft
- Branko TupanjacUnderground Storage Tanks · 1600 ft
- Norridge ServiceUnderground Storage Tanks · 1600 ft
- NORRIDGEPFAS · 1700 ft
- HARWOOD HEIGHTSPFAS · 1700 ft
- Alloy Property Company, LLCUnderground Storage Tanks · 1800 ft
- Norridge Village OfUnderground Storage Tanks · 2100 ft
- Al Auto Ser Ctr IncUnderground Storage Tanks · 2100 ft
- FCL GRAPHICS INCToxics Release Inventory · 2200 ft
- STRATOS LIGHTWAVEBrownfields · 2500 ft
- Lawrence & Olcott Auto CareUnderground Storage Tanks · 0.5 mi
- METHODE DEVELOPMENT CO.Toxics Release Inventory · 0.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Norridge'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 Norridge.
Total Sites
7,563
within ~10 miles of Norridge
Risk Level
Elevated
Highest-severity
72 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Norridge
Severity Distribution
within ~10 miles of Norridge
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Norridge, Toxics Release Inventory runs higher than the national average — 763 sites within ~10 miles of Norridge. That's not a problem with your land — it's information about it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Norridge
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 Norridge average
Your land is one point inside Norridge
Everything above resolves to Norridge as a whole — one PHZM band and one 28°F frost record, read across 1K 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 Norridge Average
Norridge Average
- ●USDA Zones 6a, averaged across Norridge
- ●One soil character for all of Norridge
- ●Frost dates read at Norridge's scale: Apr 3 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Norridge's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Norridge
Pull a site-specific report for your exact address in Norridge, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Norridge averages can't show:
We read public map data around Norridge — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Norridge average
How we know this about Norridge
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 Norridge’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 Norridge
When does frost risk typically end in Norridge?
The last hard freeze (28°F) in Norridge typically lands around Apr 3, 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 24.
When is the first frost in Norridge?
The first hard freeze (28°F) in Norridge typically arrives around Nov 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 27, so the watching starts about Oct 11 — about 221 days after the spring freeze cleared.
How long is the growing season in Norridge?
Measured between 28°F hard freezes, Norridge sees about 221 frost-free days — roughly Apr 3 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 24 to Oct 27, about 186 days.
Is the soil safe to grow vegetables in Norridge?
The federal record around Norridge is a meaningful one — 7,563 documented sites, mostly Underground Storage Tanks entries (3,591), the nearest Underground Storage Tanks record about 0.3 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 Norridge?
From about Oct 11 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 10 (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 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Norridge's scale — its 6a band and its 221-day season. Your yard writes its own version of Norridge'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 Norridge’s own scale
7 of the readings below were taken at Norridge's own scale — its own ~221-day season between 28°F freezes, the 1,157 acres it covers and 7,563 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Norridge's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Norridge's own 28°F hard-freeze dates, about Apr 3 and Nov 10 and the ~221-day span between themNOAA 1991–2020 Climate Normals
- 7,563 documented contamination sites on the federal record near Norridge, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Norridge's boundary and the 1,157 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~221-day seasonGrowable Ground crop-matching engine
- The ecoregion at Norridge's own centroid, the Central Corn Belt PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Norridgelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Norridge's 1,157 acres read through its county's SSURGO summaryfrom Cook County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Cook 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 Cook County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Norridge's 1,157 acreswhy one lot differs from the next →
- Which side of Norridge you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,157 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.3 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 Norridge-wide figureread your own land →