Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 77951 — Bloomington, TX

ZIP code 77951 (Bloomington, Victoria County) is in USDA zone 9b: the coldest winter night averages 25 to 30 °F. The median last spring frost is February 4 and the first fall frost December 9.

Where ZIP 77951 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.

Zone9b25 to 30 °F

Coldest night−3.9 to −1.1 °C

Last frostFeb 4

First frostDec 9

2012 zone9a

Was 9a 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 9b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Bloomington, 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 in Bloomington, TX

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostFebruary 4median — 50% chance of a later frost

Safe for tender plantsMarch 5only 10% chance of frost after

First fall frostDecember 9median — 10% chance by Nov 18

Growing season309 daysfrost-free, median

A hard freeze (28 °F) usually ends around January 20 and returns around January 1.

From the NOAA station Victoria Regional Airport, TX — 14 miles away, elevation 105 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 77951

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Dec 24 – Jan 7

SpinachSow outdoors · Dec 24 – Jan 14

Broccoli, cabbageStart indoors · Nov 26 – Dec 10

Broccoli, cabbageTransplant · Jan 14 – Jan 28

Onion setsPlant outdoors · Jan 7 – Jan 21

PotatoesPlant outdoors · Jan 14 – Jan 28

LettuceSow outdoors · Jan 7 – Jan 21

Carrots, beetsSow outdoors · Jan 14 – Jan 28

TomatoesStart indoors · Dec 10 – Dec 24

TomatoesTransplant · Feb 11 – Feb 25

Peppers, eggplantStart indoors · Nov 26 – Dec 10

Peppers, eggplantTransplant · Feb 18 – Mar 4

BeansSow outdoors · Feb 11 – Feb 25

Sweet cornSow outdoors · Feb 11 – Feb 25

Cucumbers, squashSow outdoors · Feb 11 – Feb 25

Fall lettuce, spinachSow outdoors · Oct 14 – Oct 28

GarlicPlant cloves · Nov 25 – Dec 30

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Feb 4) and first fall frost (Dec 9) 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 77951 came on Jan 15 — 7 days earlier than the 1991–2020 average (Jan 22).

average
Jan 222026
Jan 15

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.

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 Bloomington, TX.

Soil in Bloomington, TX

The soil mapped at the center of ZIP 77951 is Laewest — clay, moderately well drained.

TextureClayholds water and nutrients; slow to drain and warm up

pH6.3slightly acidic; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter4%moderate

Hydrologic groupDwater soaks in very slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Laewest clay, 3 to 8 percent slopes, eroded.

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 77951; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Bloomington, TX

Summer high94 °Faverage high, July

Winter low45 °Faverage low, January

Hot days118days a year at 90 °F or more

Freezing nights7nights a year at 32 °F or less

Growing degree days7,832base 50 °F — the season’s usable heat

Longest day13 h 58 mindaylight on June 21

Shortest day10 h 19 mindaylight on December 21

Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb

Precipitation39.2 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Victoria Regional Airport, TX (14 mi away); precipitation: Victoria 6.4 Ssw, TX (10 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 9b.

Telferner, TX · 14 mi

779799b

Port Lavaca, TX · 18 mi

Texas planting zones →

Questions about 77951

What planting zone is ZIP code 77951?

ZIP code 77951 (Bloomington, TX) is in USDA hardiness zone 9b on the 2023 map: the coldest night of an average winter reaches 25 to 30 °F (−3.9 to −1.1 °C).

When is the last frost in Bloomington, TX?

The median last spring frost (32 °F) near 77951 is February 4; after March 5 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Victoria Regional Airport station.

When is the first frost in Bloomington, TX?

The median first fall frost near 77951 is December 9, giving a median frost-free growing season of 309 days.

When should I plant tomatoes in 77951?

Start tomato seeds indoors around Dec 10 – Dec 24 and set transplants outside around Feb 11 – Feb 25, one to three weeks after the median last frost.

How much rain and snow does 77951 get?

About 39.2 inches of precipitation a year (NOAA 1991–2020 normals, Victoria 6.4 Ssw station).

How hot do summers get in Bloomington, TX?

The average high peaks at 94 °F in July, with about 118 days a year at 90 °F or more.

What kind of soil does 77951 have?

The USDA soil survey maps Laewest at the center of ZIP 77951: clay, moderately well drained, pH about 6.3 (slightly acidic).

Did spring come early in Bloomington, TX in 2026?

Spring leaf-out near 77951 came on Jan 15 in 2026, 7 days earlier than the 1991–2020 average (Jan 22), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Bloomington, TX?

Short-day onions: the longest day near 77951 is 13 h 58 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 77951 change?

Yes. The 2012 USDA map put 77951 in zone 9a; the 2023 map puts it in zone 9b. The newer map uses 1991–2020 data and more weather stations.