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

Planting zone for 75929 — Broaddus, TX

ZIP code 75929 (Broaddus, San Augustine County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is February 24 and the first fall frost December 1.

Where ZIP 75929 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.

Zone9a20 to 25 °F

Coldest night−6.7 to −3.9 °C

Last frostFeb 24

First frostDec 1

2012 zone8b

Was 8b 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 9a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Broaddus, 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 Broaddus, TX

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostFebruary 24median — 50% chance of a later frost

Safe for tender plantsMarch 23only 10% chance of frost after

First fall frostDecember 1median — 10% chance by Nov 9

Growing season280 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 3 and returns around December 22.

From the NOAA station Sam Rayburn Dam, TX — 12 miles away, elevation 190 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 75929

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 13 – Jan 27

SpinachSow outdoors · Jan 13 – Feb 3

Broccoli, cabbageStart indoors · Dec 16 – Dec 30

Broccoli, cabbageTransplant · Feb 3 – Feb 17

Onion setsPlant outdoors · Jan 27 – Feb 10

PotatoesPlant outdoors · Feb 3 – Feb 17

LettuceSow outdoors · Jan 27 – Feb 10

Carrots, beetsSow outdoors · Feb 3 – Feb 17

TomatoesStart indoors · Dec 30 – Jan 13

TomatoesTransplant · Mar 3 – Mar 17

Peppers, eggplantStart indoors · Dec 16 – Dec 30

Peppers, eggplantTransplant · Mar 10 – Mar 24

BeansSow outdoors · Mar 3 – Mar 17

Sweet cornSow outdoors · Mar 3 – Mar 17

Cucumbers, squashSow outdoors · Mar 3 – Mar 17

Fall lettuce, spinachSow outdoors · Oct 6 – Oct 20

GarlicPlant cloves · Nov 17 – Dec 22

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Feb 24) and first fall frost (Dec 1) 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 75929 came on Jan 30 — about the same time as the 1991–2020 average (Jan 29).

average
Jan 292026
Jan 30

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 9a in Texas

640 plants native to the lower 48 states, recorded in Texas, and rated by the USDA to survive 20 °F or colder — the bottom of zone 9a. 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 Broaddus, TX.

Soil in Broaddus, TX

The soil mapped at the center of ZIP 75929 is Latex — fine sandy loam, moderately well drained.

TextureFine sandy loamdrains and warms fast; dries out and needs more feeding

pH5.3strongly acidic; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter1.25%low — add compost

Hydrologic groupCwater soaks in slowly

Farmland classprime farmlandUSDA classification

Map unit: Latex fine sandy loam, 1 to 3 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 75929; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Broaddus, TX

Summer high95 °Faverage high, August

Winter low41 °Faverage low, January

Hot days94days a year at 90 °F or more

Freezing nights30nights a year at 32 °F or less

Growing degree days7,086base 50 °F — the season’s usable heat

Longest day14 h 11 mindaylight on June 21

Shortest day10 h 07 mindaylight on December 21

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

Precipitation52.2 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: Sam Rayburn Dam, TX (12 mi away); precipitation: Broaddus, TX (7 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

1 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

Brookeland, TX · 15 mi

Colmesneil, TX · 22 mi

Texas planting zones →

Questions about 75929

What planting zone is ZIP code 75929?

ZIP code 75929 (Broaddus, TX) is in USDA hardiness zone 9a on the 2023 map: the coldest night of an average winter reaches 20 to 25 °F (−6.7 to −3.9 °C).

When is the last frost in Broaddus, TX?

The median last spring frost (32 °F) near 75929 is February 24; after March 23 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Sam Rayburn Dam station.

When is the first frost in Broaddus, TX?

The median first fall frost near 75929 is December 1, giving a median frost-free growing season of 280 days.

When should I plant tomatoes in 75929?

Start tomato seeds indoors around Dec 30 – Jan 13 and set transplants outside around Mar 3 – Mar 17, one to three weeks after the median last frost.

How much rain and snow does 75929 get?

About 52.2 inches of precipitation a year (NOAA 1991–2020 normals, Broaddus station).

How hot do summers get in Broaddus, TX?

The average high peaks at 95 °F in August, with about 94 days a year at 90 °F or more.

What kind of soil does 75929 have?

The USDA soil survey maps Latex at the center of ZIP 75929: fine sandy loam, moderately well drained, pH about 5.3 (strongly acidic).

Did spring come early in Broaddus, TX in 2026?

Spring leaf-out near 75929 came on Jan 30 in 2026, about the same as the 1991–2020 average (Jan 29), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Broaddus, TX?

Short-day onions: the longest day near 75929 is 14 h 11 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 75929 change?

Yes. The 2012 USDA map put 75929 in zone 8b; the 2023 map puts it in zone 9a. The newer map uses 1991–2020 data and more weather stations.