Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 36034 — Glenwood, AL

ZIP code 36034 (Glenwood, Crenshaw County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 17 and the first fall frost November 16.

Where ZIP 36034 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone8b15 to 20 °F
Coldest night−9.4 to −6.7 °C
Last frostMar 17
First frostNov 16
2012 zone8a

Was 8a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Glenwood, AL…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Glenwood, AL

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 17median — 50% chance of a later frost
Safe for tender plantsApril 3only 10% chance of frost after
First fall frostNovember 16median — 10% chance by Nov 1
Growing season242 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 5 and returns around November 29.

From the NOAA station Troy 2 W, AL — 14 miles away, elevation 472 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 36034

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 3 – Feb 17
SpinachSow outdoors · Feb 3 – Feb 24
Broccoli, cabbageStart indoors · Jan 6 – Jan 20
Broccoli, cabbageTransplant · Feb 24 – Mar 10
Onion setsPlant outdoors · Feb 17 – Mar 3
PotatoesPlant outdoors · Feb 24 – Mar 10
LettuceSow outdoors · Feb 17 – Mar 3
Carrots, beetsSow outdoors · Feb 24 – Mar 10
TomatoesStart indoors · Jan 20 – Feb 3
TomatoesTransplant · Mar 24 – Apr 7
Peppers, eggplantStart indoors · Jan 6 – Jan 20
Peppers, eggplantTransplant · Mar 31 – Apr 14
BeansSow outdoors · Mar 24 – Apr 7
Sweet cornSow outdoors · Mar 24 – Apr 7
Cucumbers, squashSow outdoors · Mar 24 – Apr 7
Fall lettuce, spinachSow outdoors · Sep 21 – Oct 5
GarlicPlant cloves · Nov 2 – Dec 7
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 17) and first fall frost (Nov 16) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 36034 came on Jan 27 — 6 days earlier than the 1991–2020 average (Feb 2).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 8b in Alabama

569 plants native to the lower 48 states, recorded in Alabama, and rated by the USDA to survive 15 °F or colder — the bottom of zone 8b. Each links to its USDA PLANTS profile.

Trees 83

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °FAtlantic white cedar50 ft · blooms spring · medium shade tolerance · to −36 °F

Shrubs 130

Allegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Faloe yucca15 ft · blooms early summer · medium shade tolerance · to −1 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican beautyberry6 ft · blooms early summer · medium shade tolerance · to −8 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °F

Wildflowers & perennials 176

American bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °FAmerican spongeplant0.5 ft · blooms mid spring · high shade tolerance · to −24 °FAmerican water horehound1.8 ft · blooms early summer · low shade tolerance · to −38 °F

Grasses 157

American cupscale3 ft · blooms early summer · high shade tolerance · to −18 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °Fbeaked spikerush3 ft · blooms late spring · high shade tolerance · to −28 °Fbig bluestem6 ft · blooms summer · high shade tolerance · to −46 °Fbig cordgrass8 ft · blooms spring · high shade tolerance · to −3 °F

Vines 13

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °FAmerican wisteria50 ft · blooms spring · low shade tolerance · to −3 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fcupseed30 ft · blooms late spring · low shade tolerance · to −3 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Glenwood, AL.

Soil in Glenwood, AL

The soil mapped at the center of ZIP 36034 is Arundel — loamy sand, well drained.

TextureLoamy sanddrains and warms fast; dries out and needs more feeding
pH4.6strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Arundel-Luverne-Troup complex, 8 to 25 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 36034; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Glenwood, AL

Summer high90 °Faverage high, July
Winter low37 °Faverage low, January
Hot days61days a year at 90 °F or more
Freezing nights40nights a year at 32 °F or less
Growing degree days5,771base 50 °F — the season’s usable heat
Longest day14 h 13 mindaylight on June 21
Shortest day10 h 05 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation54.6 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°32 °FJanuary: average high 59 °F, low 37 °F 59°37° JanFebruary: average high 63 °F, low 40 °F 63°40° FebMarch: average high 70 °F, low 45 °F 70°45° MarApril: average high 76 °F, low 52 °F 76°52° AprMay: average high 83 °F, low 59 °F 83°59° MayJune: average high 88 °F, low 67 °F 88°67° JunJuly: average high 90 °F, low 69 °F 90°69° JulAugust: average high 89 °F, low 69 °F 89°69° AugSeptember: average high 86 °F, low 65 °F 86°65° SepOctober: average high 77 °F, low 54 °F 77°54° OctNovember: average high 68 °F, low 44 °F 68°44° NovDecember: average high 61 °F, low 39 °F 61°39° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 4.93 in precipitation 4.9 JanFebruary: 4.51 in precipitation 4.5 FebMarch: 5.23 in precipitation 5.2 MarApril: 4.65 in precipitation 4.7 AprMay: 3.78 in precipitation 3.8 MayJune: 5.00 in precipitation 5.0 JunJuly: 5.46 in precipitation 5.5 JulAugust: 4.66 in precipitation 4.7 AugSeptember: 3.71 in precipitation 3.7 SepOctober: 3.27 in precipitation 3.3 OctNovember: 4.27 in precipitation 4.3 NovDecember: 5.12 in precipitation 5.1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Troy 2 W, AL (14 mi away); precipitation: Troy 2 W, AL (14 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

363468b
Jack, AL · 11 mi
360358b
Goshen, AL · 12 mi
360798b
Troy, AL · 12 mi
360098b
Brantley, AL · 13 mi
363238b
Elba, AL · 14 mi
360498b
Luverne, AL · 14 mi
360828b
Troy, AL · 16 mi
360628b
Petrey, AL · 17 mi

Alabama planting zones →

Questions about 36034

What planting zone is ZIP code 36034?

ZIP code 36034 (Glenwood, AL) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Glenwood, AL?

The median last spring frost (32 °F) near 36034 is March 17; after April 3 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Troy 2 W station.

When is the first frost in Glenwood, AL?

The median first fall frost near 36034 is November 16, giving a median frost-free growing season of 242 days.

When should I plant tomatoes in 36034?

Start tomato seeds indoors around Jan 20 – Feb 3 and set transplants outside around Mar 24 – Apr 7, one to three weeks after the median last frost.

How much rain and snow does 36034 get?

About 54.6 inches of precipitation a year (NOAA 1991–2020 normals, Troy 2 W station).

How hot do summers get in Glenwood, AL?

The average high peaks at 90 °F in July, with about 61 days a year at 90 °F or more.

What kind of soil does 36034 have?

The USDA soil survey maps Arundel at the center of ZIP 36034: loamy sand, well drained, pH about 4.6 (strongly acidic).

Did spring come early in Glenwood, AL in 2026?

Spring leaf-out near 36034 came on Jan 27 in 2026, 6 days earlier than the 1991–2020 average (Feb 2), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Glenwood, AL?

Short-day onions: the longest day near 36034 is 14 h 13 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 36034 change?

Yes. The 2012 USDA map put 36034 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.