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

Planting zone for 76446 — Dublin, TX

ZIP code 76446 (Dublin, Erath County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 16 and the first fall frost November 16.

Where ZIP 76446 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.

Zone8b15 to 20 °F

Coldest night−9.4 to −6.7 °C

Last frostMar 16

First frostNov 16

2012 zone8a

Was 8a 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 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Dublin, 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 Dublin, TX

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 16median — 50% chance of a later frost

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

First fall frostNovember 16median — 10% chance by Nov 1

Growing season243 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 3 and returns around November 29.

From the NOAA station Dublin 2se, TX — 3 miles away, elevation 1,467 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 76446

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 2 – Feb 16

SpinachSow outdoors · Feb 2 – Feb 23

Broccoli, cabbageStart indoors · Jan 5 – Jan 19

Broccoli, cabbageTransplant · Feb 23 – Mar 9

Onion setsPlant outdoors · Feb 16 – Mar 2

PotatoesPlant outdoors · Feb 23 – Mar 9

LettuceSow outdoors · Feb 16 – Mar 2

Carrots, beetsSow outdoors · Feb 23 – Mar 9

TomatoesStart indoors · Jan 19 – Feb 2

TomatoesTransplant · Mar 23 – Apr 6

Peppers, eggplantStart indoors · Jan 5 – Jan 19

Peppers, eggplantTransplant · Mar 30 – Apr 13

BeansSow outdoors · Mar 23 – Apr 6

Sweet cornSow outdoors · Mar 23 – Apr 6

Cucumbers, squashSow outdoors · Mar 23 – Apr 6

Fall lettuce, spinachSow outdoors · Sep 21 – Oct 5

GarlicPlant cloves · Nov 2 – Dec 7

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 16) and first fall frost (Nov 16) 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 76446 came on Feb 8 — about the same time as the 1991–2020 average (Feb 7).

average
Feb 72026
Feb 8

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 8b in Texas

620 plants native to the lower 48 states, recorded in Texas, and rated by the USDA to survive 15 °F or colder — the bottom of zone 8b. 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 Dublin, TX.

Soil in Dublin, TX

The soil mapped at the center of ZIP 76446 is Slidell — clay, moderately well drained.

TextureClayholds water and nutrients; slow to drain and warm up

pH8.0alkaline; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter2.5%moderate

Hydrologic groupDwater soaks in very slowly

Farmland classprime farmlandUSDA classification

Map unit: Slidell clay, 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 76446; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Dublin, TX

Summer high94 °Faverage high, July

Winter low32 °Faverage low, January

Hot days83days a year at 90 °F or more

Freezing nights49nights a year at 32 °F or less

Growing degree days5,769base 50 °F — the season’s usable heat

Longest day14 h 15 mindaylight on June 21

Shortest day10 h 03 mindaylight on December 21

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

Precipitation38.4 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: Dublin 2se, TX (3 mi away); precipitation: Dublin 2se, TX (3 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.

764688b

Proctor, TX · 7 mi

764618b

Lingleville, TX · 12 mi

764448b

De Leon, TX · 13 mi

764018b

Stephenville, TX · 16 mi

Desdemona, TX · 19 mi

764428b

Comanche, TX · 20 mi

Texas planting zones →

Questions about 76446

What planting zone is ZIP code 76446?

ZIP code 76446 (Dublin, TX) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Dublin, TX?

The median last spring frost (32 °F) near 76446 is March 16; after April 5 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Dublin 2se station.

When is the first frost in Dublin, TX?

The median first fall frost near 76446 is November 16, giving a median frost-free growing season of 243 days.

When should I plant tomatoes in 76446?

Start tomato seeds indoors around Jan 19 – Feb 2 and set transplants outside around Mar 23 – Apr 6, one to three weeks after the median last frost.

How much rain and snow does 76446 get?

About 38.4 inches of precipitation a year (NOAA 1991–2020 normals, Dublin 2se station).

How hot do summers get in Dublin, TX?

The average high peaks at 94 °F in July, with about 83 days a year at 90 °F or more.

What kind of soil does 76446 have?

The USDA soil survey maps Slidell at the center of ZIP 76446: clay, moderately well drained, pH about 8.0 (alkaline).

Did spring come early in Dublin, TX in 2026?

Spring leaf-out near 76446 came on Feb 8 in 2026, about the same as the 1991–2020 average (Feb 7), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Dublin, TX?

Short-day onions: the longest day near 76446 is 14 h 15 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 76446 change?

Yes. The 2012 USDA map put 76446 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.