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

Planting zone for Freeport, TX

Freeport, TX is in USDA zone 9b across its 2 ZIP codes.

Freeport on the zone map

Outlined: its 1 ZIP code areas · 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.

Zone9b25 to 30 °F
ZIP codes2
Last frostrare
First frostrare
Growing seasonall year

9b 2 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

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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

A 32 °F frost doesn't happen here in most winters. At the nearest station (NOAA station Freeport 2 Nw, TX, elevation 7 ft) the median growing season is 338 days. When frost does come, it is a midwinter night or two; cover tender plants when a freeze is forecast.

Frost data: NOAA NCEI U.S. Climate Normals 1991–2020.

When spring arrived in 2026

In 2026, spring leaf-out near 77541 came on Jan 11 — 10 days earlier than the 1991–2020 average (Jan 21).

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 9b in Texas

646 plants native to the lower 48 states, recorded in Texas, and rated by the USDA to survive 25 °F or colder — the bottom of zone 9b. Each links to its USDA PLANTS profile.

Trees 72

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °FArizona cypress50 ft · blooms spring · low shade tolerance · to −23 °FArizona walnut50 ft · blooms late spring · high shade tolerance · to −33 °F

Shrubs 142

alderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °Faloe yucca15 ft · blooms early summer · medium shade tolerance · to −1 °FAmerican beautyberry6 ft · blooms early summer · medium shade tolerance · to −8 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °FAmerican hornbeam30 ft · blooms mid spring · low shade tolerance · to −34 °FAmerican snowbell10 ft · blooms spring · medium shade tolerance · to −16 °F

Wildflowers & perennials 212

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine mountainsorrel1 ft · blooms mid summer · medium shade tolerance · to −43 °FAmerican bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican century plant6 ft · blooms indeterminate · high shade tolerance · to 12 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °F

Grasses 197

alkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °FAmerican cupscale3 ft · blooms early summer · high shade tolerance · to −18 °FArizona cottontop4 ft · blooms late summer · high shade tolerance · to −13 °FArizona fescue2 ft · blooms late spring · high shade tolerance · to −23 °FArizona threeawn2 ft · blooms mid summer · high shade tolerance · to −3 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °F

Vines 14

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 Freeport, TX.

Soil in Freeport, TX

The center of ZIP 77541 is mapped as Water, saline: built-over ground without natural soil data. Garden soil here is usually imported or disturbed — test before you plant.

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 77541; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Freeport, TX

Summer high92 °Faverage high, July
Winter low46 °Faverage low, January
Hot days82days a year at 90 °F or more
Freezing nights4nights a year at 32 °F or less
Growing degree days7,938base 50 °F — the season’s usable heat
Longest day14 h 00 mindaylight on June 21
Shortest day10 h 17 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation49.9 inper year, rain and melted snow

Average high and low, by month

40°50°60°70°80°90°100°January: average high 64 °F, low 46 °F 64°46° JanFebruary: average high 67 °F, low 50 °F 67°50° FebMarch: average high 73 °F, low 56 °F 73°56° MarApril: average high 78 °F, low 63 °F 78°63° AprMay: average high 84 °F, low 71 °F 84°71° MayJune: average high 90 °F, low 76 °F 90°76° JunJuly: average high 92 °F, low 78 °F 92°78° JulAugust: average high 92 °F, low 78 °F 92°78° AugSeptember: average high 89 °F, low 73 °F 89°73° SepOctober: average high 83 °F, low 65 °F 83°65° OctNovember: average high 74 °F, low 55 °F 74°55° NovDecember: average high 67 °F, low 49 °F 67°49° Dec

Precipitation by month inches

0″2″4″6″8″January: 4.02 in precipitation 4.0 JanFebruary: 2.44 in precipitation 2.4 FebMarch: 2.91 in precipitation 2.9 MarApril: 2.87 in precipitation 2.9 AprMay: 3.87 in precipitation 3.9 MayJune: 4.74 in precipitation 4.7 JunJuly: 4.18 in precipitation 4.2 JulAugust: 4.98 in precipitation 5.0 AugSeptember: 7.06 in precipitation 7.1 SepOctober: 4.37 in precipitation 4.4 OctNovember: 4.69 in precipitation 4.7 NovDecember: 3.80 in precipitation 3.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Freeport 2 Nw, TX (4 mi away); precipitation: Freeport 2 Nw, TX (4 mi away). Daylight is calculated from latitude.

ZIP codes in Freeport

775419b
25 to 30 °F
775429b
25 to 30 °F

Texas planting zones →

Questions about Freeport

What planting zone is Freeport, TX?

Freeport, TX is in USDA hardiness zone 9b on the 2023 map (9b: 25 to 30 °F).

What kind of onions grow in Freeport, TX?

Short-day onions: the longest day is 14 h 00 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

How much rain and snow does Freeport, TX get?

About 49.9 inches of precipitation a year (NOAA 1991–2020 normals).