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

Planting zone for Corpus Christi, TX

Corpus Christi, TX is in USDA zones 9b to 10a across its 30 ZIP codes.

Corpus Christi on the zone map

Outlined: its 18 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.

Zones9b–10a25 to 35 °F
ZIP codes30
Last frostrare
First frostrare
Growing seasonall year

9b 4 ZIPs   10a 26 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Corpus Christi, TX…

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 Corpus Christi NWS, TX, elevation 43 ft) the median growing season is 331 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 78416 came on Jan 10 — 9 days earlier than the 1991–2020 average (Jan 19).

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 Corpus Christi, TX.

Soil in Corpus Christi, TX

The soil mapped at the center of ZIP 78416 is Victoria — clay, well drained.

TextureClayholds water and nutrients; slow to drain and warm up
pH8.1alkaline; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2%moderate
Hydrologic groupCwater soaks in slowly
Farmland classprime farmlandUSDA classification

Map unit: Victoria clay 0 to 1 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 78416; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Corpus Christi, TX

Summer high96 °Faverage high, August
Winter low48 °Faverage low, January
Hot days139days a year at 90 °F or more
Freezing nights3nights a year at 32 °F or less
Growing degree days8,708base 50 °F — the season’s usable heat
Longest day13 h 54 mindaylight on June 21
Shortest day10 h 23 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation34.6 inper year, rain and melted snow

Average high and low, by month

40°50°60°70°80°90°100°110°January: average high 67 °F, low 48 °F 67°48° JanFebruary: average high 72 °F, low 52 °F 72°52° FebMarch: average high 76 °F, low 58 °F 76°58° MarApril: average high 82 °F, low 65 °F 82°65° AprMay: average high 87 °F, low 72 °F 87°72° MayJune: average high 93 °F, low 77 °F 93°77° JunJuly: average high 94 °F, low 78 °F 94°78° JulAugust: average high 96 °F, low 79 °F 96°79° AugSeptember: average high 92 °F, low 74 °F 92°74° SepOctober: average high 86 °F, low 67 °F 86°67° OctNovember: average high 76 °F, low 57 °F 76°57° NovDecember: average high 69 °F, low 51 °F 69°51° Dec

Precipitation by month inches

0″2″4″6″January: 1.98 in precipitation 2.0 JanFebruary: 1.41 in precipitation 1.4 FebMarch: 2.42 in precipitation 2.4 MarApril: 2.30 in precipitation 2.3 AprMay: 3.90 in precipitation 3.9 MayJune: 3.62 in precipitation 3.6 JunJuly: 2.76 in precipitation 2.8 JulAugust: 2.57 in precipitation 2.6 AugSeptember: 6.39 in precipitation 6.4 SepOctober: 3.30 in precipitation 3.3 OctNovember: 2.24 in precipitation 2.2 NovDecember: 1.76 in precipitation 1.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Corpus Christi Cabaniss Field, TX (4 mi away); precipitation: Corpus Christi 9.1 Nw, TX (4 mi away). Daylight is calculated from latitude.

ZIP codes in Corpus Christi

7840110a
30 to 35 °F
7840210a
30 to 35 °F
7840310a
30 to 35 °F
7840410a
30 to 35 °F
7840510a
30 to 35 °F
784069b
25 to 30 °F
7840710a
30 to 35 °F
7840810a
30 to 35 °F
784099b
25 to 30 °F
784109b
25 to 30 °F
7841110a
30 to 35 °F
7841210a
30 to 35 °F
7841310a
30 to 35 °F
7841410a
30 to 35 °F
784159b
25 to 30 °F
7841610a
30 to 35 °F
7841710a
30 to 35 °F
7841810a
30 to 35 °F
7841910a
30 to 35 °F
7842610a
30 to 35 °F
7842710a
30 to 35 °F
7846010a
30 to 35 °F
7846310a
30 to 35 °F
7846510a
30 to 35 °F
7846610a
30 to 35 °F
7846710a
30 to 35 °F
7846810a
30 to 35 °F
7846910a
30 to 35 °F
7847210a
30 to 35 °F
7848010a
30 to 35 °F

Texas planting zones →

Questions about Corpus Christi

What planting zone is Corpus Christi, TX?

Corpus Christi, TX is in USDA hardiness zones 9b to 10a on the 2023 map (9b: 25 to 30 °F; 10a: 30 to 35 °F).

What kind of onions grow in Corpus Christi, TX?

Short-day onions: the longest day is 13 h 54 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

How much rain and snow does Corpus Christi, TX get?

About 34.6 inches of precipitation a year (NOAA 1991–2020 normals).