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

Planting zone for 76247 — Justin, TX

ZIP code 76247 (Justin, Denton County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 12 and the first fall frost November 17.

Where ZIP 76247 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 12

First frostNov 17

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 Justin, 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 Justin, TX

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 12median — 50% chance of a later frost

Safe for tender plantsApril 3only 10% chance of frost after

First fall frostNovember 17median — 10% chance by Oct 31

Growing season249 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 28 and returns around December 1.

From the NOAA station Ft Worth Alliance Airport, TX — 8 miles away, elevation 686 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 76247

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 29 – Feb 12

SpinachSow outdoors · Jan 29 – Feb 19

Broccoli, cabbageStart indoors · Jan 1 – Jan 15

Broccoli, cabbageTransplant · Feb 19 – Mar 5

Onion setsPlant outdoors · Feb 12 – Feb 26

PotatoesPlant outdoors · Feb 19 – Mar 5

LettuceSow outdoors · Feb 12 – Feb 26

Carrots, beetsSow outdoors · Feb 19 – Mar 5

TomatoesStart indoors · Jan 15 – Jan 29

TomatoesTransplant · Mar 19 – Apr 2

Peppers, eggplantStart indoors · Jan 1 – Jan 15

Peppers, eggplantTransplant · Mar 26 – Apr 9

BeansSow outdoors · Mar 19 – Apr 2

Sweet cornSow outdoors · Mar 19 – Apr 2

Cucumbers, squashSow outdoors · Mar 19 – Apr 2

Fall lettuce, spinachSow outdoors · Sep 22 – Oct 6

GarlicPlant cloves · Nov 3 – Dec 8

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 12) and first fall frost (Nov 17) 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 76247 came on Feb 8 — about the same time as the 1991–2020 average (Feb 6).

average
Feb 62026
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 Justin, TX.

Soil in Justin, TX

The soil mapped at the center of ZIP 76247 is Somervell — very gravelly loam, well drained.

TextureVery gravelly loama good balance for most vegetables

pH8.2alkaline; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter2%moderate

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Somervell gravelly loam, 1 to 5 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 76247; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Justin, TX

Summer high97 °Faverage high, July

Winter low36 °Faverage low, January

Hot days108days a year at 90 °F or more

Freezing nights45nights a year at 32 °F or less

Growing degree days6,710base 50 °F — the season’s usable heat

Longest day14 h 20 mindaylight on June 21

Shortest day9 h 58 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation40.1 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: Ft Worth Alliance Airport, TX (8 mi away); precipitation: Justin, TX (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Fort Worth, TX · 9 mi

Texas planting zones →

Questions about 76247

What planting zone is ZIP code 76247?

ZIP code 76247 (Justin, 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 Justin, TX?

The median last spring frost (32 °F) near 76247 is March 12; after April 3 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Ft Worth Alliance Airport station.

When is the first frost in Justin, TX?

The median first fall frost near 76247 is November 17, giving a median frost-free growing season of 249 days.

When should I plant tomatoes in 76247?

Start tomato seeds indoors around Jan 15 – Jan 29 and set transplants outside around Mar 19 – Apr 2, one to three weeks after the median last frost.

How much rain and snow does 76247 get?

About 40.1 inches of precipitation a year (NOAA 1991–2020 normals, Justin station).

How hot do summers get in Justin, TX?

The average high peaks at 97 °F in July, with about 108 days a year at 90 °F or more.

What kind of soil does 76247 have?

The USDA soil survey maps Somervell at the center of ZIP 76247: very gravelly loam, well drained, pH about 8.2 (alkaline).

Did spring come early in Justin, TX in 2026?

Spring leaf-out near 76247 came on Feb 8 in 2026, about the same as the 1991–2020 average (Feb 6), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Justin, TX?

Intermediate onions: the longest day near 76247 is 14 h 20 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 76247 change?

Yes. The 2012 USDA map put 76247 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.