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

Planting zone for 77326 — Ace, TX

ZIP code 77326 (Ace, Polk County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is March 1 and the first fall frost November 24.

Where ZIP 77326 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 frostMar 1

First frostNov 24

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 Ace, 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 Ace, TX

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 1median — 50% chance of a later frost

Safe for tender plantsMarch 27only 10% chance of frost after

First fall frostNovember 24median — 10% chance by Nov 3

Growing season269 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 14 and returns around December 12.

From the NOAA station Livingston 2 Nne, TX — 17 miles away, elevation 177 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 77326

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 18 – Feb 1

SpinachSow outdoors · Jan 18 – Feb 8

Broccoli, cabbageStart indoors · Dec 21 – Jan 4

Broccoli, cabbageTransplant · Feb 8 – Feb 22

Onion setsPlant outdoors · Feb 1 – Feb 15

PotatoesPlant outdoors · Feb 8 – Feb 22

LettuceSow outdoors · Feb 1 – Feb 15

Carrots, beetsSow outdoors · Feb 8 – Feb 22

TomatoesStart indoors · Jan 4 – Jan 18

TomatoesTransplant · Mar 8 – Mar 22

Peppers, eggplantStart indoors · Dec 21 – Jan 4

Peppers, eggplantTransplant · Mar 15 – Mar 29

BeansSow outdoors · Mar 8 – Mar 22

Sweet cornSow outdoors · Mar 8 – Mar 22

Cucumbers, squashSow outdoors · Mar 8 – Mar 22

Fall lettuce, spinachSow outdoors · Sep 29 – Oct 13

GarlicPlant cloves · Nov 10 – Dec 15

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 1) and first fall frost (Nov 24) 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 77326 came on Jan 11 — 15 days earlier than the 1991–2020 average (Jan 26).

average
Jan 262026
Jan 11

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).

Soil in Ace, TX

The soil mapped at the center of ZIP 77326 is Vamont — clay, somewhat poorly drained.

TextureClayholds water and nutrients; slow to drain and warm up

pH4.8strongly acidic; most vegetables like 6.0–7.0

DrainageSomewhat poorly drainedconsider raised beds

Organic matter2%moderate

Hydrologic groupC/Dslow when drained; wet otherwise

Farmland classNot prime farmlandUSDA classification

Map unit: Vamont 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 77326; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Ace, TX

Summer high96 °Faverage high, August

Winter low40 °Faverage low, January

Hot days103days a year at 90 °F or more

Freezing nights36nights a year at 32 °F or less

Growing degree days7,096base 50 °F — the season’s usable heat

Longest day14 h 07 mindaylight on June 21

Shortest day10 h 10 mindaylight on December 21

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

Precipitation51 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: Livingston 2 Nne, TX (17 mi away); precipitation: Livingston 2 Nne, TX (17 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 9a.

Cleveland, TX · 13 mi

773749a

Thicket, TX · 13 mi

773329a

Dallardsville, TX · 14 mi

Texas planting zones →

Questions about 77326

What planting zone is ZIP code 77326?

ZIP code 77326 (Ace, 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 Ace, TX?

The median last spring frost (32 °F) near 77326 is March 1; after March 27 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Livingston 2 Nne station.

When is the first frost in Ace, TX?

The median first fall frost near 77326 is November 24, giving a median frost-free growing season of 269 days.

When should I plant tomatoes in 77326?

Start tomato seeds indoors around Jan 4 – Jan 18 and set transplants outside around Mar 8 – Mar 22, one to three weeks after the median last frost.

How much rain and snow does 77326 get?

About 51 inches of precipitation a year (NOAA 1991–2020 normals, Livingston 2 Nne station).

How hot do summers get in Ace, TX?

The average high peaks at 96 °F in August, with about 103 days a year at 90 °F or more.

What kind of soil does 77326 have?

The USDA soil survey maps Vamont at the center of ZIP 77326: clay, somewhat poorly drained, pH about 4.8 (strongly acidic).

Did spring come early in Ace, TX in 2026?

Spring leaf-out near 77326 came on Jan 11 in 2026, 15 days earlier than the 1991–2020 average (Jan 26), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Ace, TX?

Short-day onions: the longest day near 77326 is 14 h 07 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 77326 change?

Yes. The 2012 USDA map put 77326 in zone 8b; the 2023 map puts it in zone 9a. The newer map uses 1991–2020 data and more weather stations.