Warren AFB, Wyoming, sits in USDA hardiness zone 5b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
A short list that earns its place here — cabbage, cranberry, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Warren AFB, 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 Warren AFB 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 Warren AFB — soil, climate, flood, and parcel records. How we handle your address.
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Warren AFB — the short answer
Warren AFB, Wyoming: USDA zone 5b, about 156 days between hard freezes, across 3K acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 5
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~156
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 3K 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 5b is Warren AFB's average, not your lot's — a low corner or a tree line moves it. Against Warren AFB's 156-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Warren AFB
Each reading below is measured for Warren AFB itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWarren AFB runs about 156 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
MeasuredWarren AFB sits in USDA hardiness zone 5b.
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 Warren AFB is in
Warren AFB sits in the High Plains — EPA Level III, inside the wider Great Plains. That is read at Warren AFB's own centroid rather than borrowed from Laramie County.
What Grows in Warren AFB
Every plant below cleared Warren AFB's own zone 5b and its 156-day season. Each card opens that plant's Wyoming profile. How we score.
Is it too late to plant in Warren AFB?
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 Apr 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 5 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 8 — 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 Warren AFB
Closest first, within ~10 miles of Warren AFB. Listing isn't leaking, and distance isn't exposure.
- 14-067-26cac01Nitrate · 1000 ft
- F.E. WARREN AIR FORCE BASEToxics Release Inventory · 1300 ft
- 14-067-26cbd02Nitrate · 1500 ft
- USAF F.E. WARREN AFBPFAS · 1700 ft
- F.E. WARREN AIR FORCE BASESuperfund · 2100 ft
- F.E. WARREN AIR FORCE BASEBrownfields · 1.0 mi
- CHEYENNE (CITY OF) CHEYENNE TRANSIT BUS STORAGE FACILITYBrownfields · 1.0 mi
- Cheyenne Country ClubUnderground Storage Tanks · 1.4 mi
- 14-067-27bbc01Nitrate · 1.4 mi
- Woodworks, Inc.Underground Storage Tanks · 1.5 mi
- Spradley Barr ToyotaUnderground Storage Tanks · 1.6 mi
- Corner StopUnderground Storage Tanks · 1.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Warren AFB'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 Warren AFB.
Sources Checked
within ~10 miles of Warren AFB
Severity Distribution
within ~10 miles of Warren AFB
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 Warren AFB
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 Warren AFB average
Your land is one point inside Warren AFB
Everything above resolves to Warren AFB as a whole — one PHZM band and one 28°F frost record, read across 3K 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 Warren AFB Average
Warren AFB Average
- ●USDA Zones 5b, averaged across Warren AFB
- ●One soil character for all of Warren AFB
- ●Frost dates read at Warren AFB's scale: May 5 to Oct 8
YOUR Parcel
- ✓Your exact zone, not Warren AFB's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Warren AFB
Pull a site-specific report for your exact address in Warren AFB, Wyoming — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Warren AFB averages can't show:
We read public map data around Warren AFB — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Warren AFB average
How we know this about Warren AFB
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 Warren AFB’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 Warren AFB
When does frost risk typically end in Warren AFB?
The last hard freeze (28°F) in Warren AFB typically lands around May 5, 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 26.
When is the first frost in Warren AFB?
The first hard freeze (28°F) in Warren AFB typically arrives around Oct 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 24, so the watching starts about Sep 8 — about 156 days after the spring freeze cleared.
How long is the growing season in Warren AFB?
Measured between 28°F hard freezes, Warren AFB sees about 156 frost-free days — roughly May 5 through Oct 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 26 to Sep 24, about 121 days.
Is the soil safe to grow vegetables in Warren AFB?
The federal record around Warren AFB is a meaningful one — 578 documented sites, mostly Underground Storage Tanks entries (294), the nearest Nitrate 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 Warren AFB?
From about Sep 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 Oct 8 (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 8. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Warren AFB's scale — its 5b band and its 156-day season. Your yard writes its own version of Warren AFB'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 Warren AFB’s own scale
6 of the readings below were taken at Warren AFB's own scale — its own ~156-day season between 28°F freezes, the 2,997 acres it covers and 578 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Warren AFB's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Warren AFB's own 28°F hard-freeze dates, about May 5 and Oct 8 and the ~156-day span between themNOAA 1991–2020 Climate Normals
- 578 documented contamination sites on the federal record near Warren AFB, the closest Nitrate record about 0.2 miles out from the town centreFederal environmental registers
- Warren AFB's boundary and the 2,997 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~156-day seasonGrowable Ground crop-matching engine
- The ecoregion at Warren AFB's own centroid, the High PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Warren AFB's 2,997 acres read through its county's SSURGO summaryfrom Laramie County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Laramie County
- The growing challenges every Wyoming grower plans around — written at state scale, so they stay on the state guidefrom Wyoming
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Laramie County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Warren AFB's 2,997 acreswhy one lot differs from the next →
- Which side of Warren AFB you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,997 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Warren AFB-wide figureread your own land →
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