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

Planting zone for 76018 — Arlington, TX

ZIP code 76018 (Arlington, Tarrant County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 9 and the first fall frost November 21.

Where ZIP 76018 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 9
First frostNov 21
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 Arlington, 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 Arlington, TX

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 9median — 50% chance of a later frost
Safe for tender plantsMarch 28only 10% chance of frost after
First fall frostNovember 21median — 10% chance by Nov 3
Growing season256 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 25 and returns around December 4.

From the NOAA station Arlington Municipal Airport, TX — within 1 mile, elevation 630 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 76018

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Jan 26 – Feb 9
SpinachSow outdoors · Jan 26 – Feb 16
Broccoli, cabbageStart indoors · Dec 29 – Jan 12
Broccoli, cabbageTransplant · Feb 16 – Mar 2
Onion setsPlant outdoors · Feb 9 – Feb 23
PotatoesPlant outdoors · Feb 16 – Mar 2
LettuceSow outdoors · Feb 9 – Feb 23
Carrots, beetsSow outdoors · Feb 16 – Mar 2
TomatoesStart indoors · Jan 12 – Jan 26
TomatoesTransplant · Mar 16 – Mar 30
Peppers, eggplantStart indoors · Dec 29 – Jan 12
Peppers, eggplantTransplant · Mar 23 – Apr 6
BeansSow outdoors · Mar 16 – Mar 30
Sweet cornSow outdoors · Mar 16 – Mar 30
Cucumbers, squashSow outdoors · Mar 16 – Mar 30
Fall lettuce, spinachSow outdoors · Sep 26 – Oct 10
GarlicPlant cloves · Nov 7 – Dec 12
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 9) and first fall frost (Nov 21) 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 76018 came on Feb 7 — 3 days later than the 1991–2020 average (Feb 4).

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.

Trees 70

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °FArizona cypress50 ft · blooms spring · low shade tolerance · to −23 °FArizona walnut50 ft · blooms late spring · high shade tolerance · to −33 °F

Shrubs 137

alderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °Faloe yucca15 ft · blooms early summer · medium shade tolerance · to −1 °FAmerican beautyberry6 ft · blooms early summer · medium shade tolerance · to −8 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °FAmerican hornbeam30 ft · blooms mid spring · low shade tolerance · to −34 °FAmerican snowbell10 ft · blooms spring · medium shade tolerance · to −16 °F

Wildflowers & perennials 204

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine mountainsorrel1 ft · blooms mid summer · medium shade tolerance · to −43 °FAmerican bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican century plant6 ft · blooms indeterminate · high shade tolerance · to 12 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °F

Grasses 188

alkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °FAmerican cupscale3 ft · blooms early summer · high shade tolerance · to −18 °FArizona cottontop4 ft · blooms late summer · high shade tolerance · to −13 °FArizona fescue2 ft · blooms late spring · high shade tolerance · to −23 °FArizona threeawn2 ft · blooms mid summer · high shade tolerance · to −3 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °F

Vines 14

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °FAmerican wisteria50 ft · blooms spring · low shade tolerance · to −3 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fcupseed30 ft · blooms late spring · low shade tolerance · to −3 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °F

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 Arlington, TX.

Soil in Arlington, TX

The soil mapped at the center of ZIP 76018 is Heiden — clay, well drained.

TextureClayholds water and nutrients; slow to drain and warm up
pH8.2alkaline; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2.5%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classprime farmlandUSDA classification

Map unit: Heiden 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 76018; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Arlington, TX

Summer high96 °Faverage high, July
Winter low37 °Faverage low, January
Hot days106days a year at 90 °F or more
Freezing nights36nights a year at 32 °F or less
Growing degree days6,643base 50 °F — the season’s usable heat
Longest day14 h 18 mindaylight on June 21
Shortest day10 h 00 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation36.2 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°110°32 °FJanuary: average high 58 °F, low 37 °F 58°37° JanFebruary: average high 62 °F, low 40 °F 62°40° FebMarch: average high 70 °F, low 48 °F 70°48° MarApril: average high 77 °F, low 55 °F 77°55° AprMay: average high 84 °F, low 64 °F 84°64° MayJune: average high 92 °F, low 72 °F 92°72° JunJuly: average high 96 °F, low 75 °F 96°75° JulAugust: average high 96 °F, low 75 °F 96°75° AugSeptember: average high 89 °F, low 68 °F 89°68° SepOctober: average high 79 °F, low 57 °F 79°57° OctNovember: average high 67 °F, low 46 °F 67°46° NovDecember: average high 59 °F, low 39 °F 59°39° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 2.34 in precipitation 2.3 JanFebruary: 2.63 in precipitation 2.6 FebMarch: 3.37 in precipitation 3.4 MarApril: 3.13 in precipitation 3.1 AprMay: 4.33 in precipitation 4.3 MayJune: 3.54 in precipitation 3.5 JunJuly: 1.70 in precipitation 1.7 JulAugust: 1.68 in precipitation 1.7 AugSeptember: 3.32 in precipitation 3.3 SepOctober: 4.72 in precipitation 4.7 OctNovember: 2.62 in precipitation 2.6 NovDecember: 2.81 in precipitation 2.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Arlington Municipal Airport, TX (within 1 mile); precipitation: Arlington Municipal Airport, TX (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

760148b
Arlington, TX · 2 mi
760028b
Arlington, TX · 3 mi
760158b
Arlington, TX · 3 mi
750528b
Grand Prairie, TX · 4 mi
760108b
Arlington, TX · 4 mi
760178b
Arlington, TX · 4 mi
760018b
Arlington, TX · 4 mi
750548b
Grand Prairie, TX · 5 mi

All 18 ZIP codes in Arlington → · Texas planting zones →

Questions about 76018

What planting zone is ZIP code 76018?

ZIP code 76018 (Arlington, 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 Arlington, TX?

The median last spring frost (32 °F) near 76018 is March 9; after March 28 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Arlington Municipal Airport station.

When is the first frost in Arlington, TX?

The median first fall frost near 76018 is November 21, giving a median frost-free growing season of 256 days.

When should I plant tomatoes in 76018?

Start tomato seeds indoors around Jan 12 – Jan 26 and set transplants outside around Mar 16 – Mar 30, one to three weeks after the median last frost.

How much rain and snow does 76018 get?

About 36.2 inches of precipitation a year (NOAA 1991–2020 normals, Arlington Municipal Airport station).

How hot do summers get in Arlington, TX?

The average high peaks at 96 °F in July, with about 106 days a year at 90 °F or more.

What kind of soil does 76018 have?

The USDA soil survey maps Heiden at the center of ZIP 76018: clay, well drained, pH about 8.2 (alkaline).

Did spring come early in Arlington, TX in 2026?

Spring leaf-out near 76018 came on Feb 7 in 2026, 3 days later than the 1991–2020 average (Feb 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Arlington, TX?

Intermediate onions: the longest day near 76018 is 14 h 18 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 76018 change?

Yes. The 2012 USDA map put 76018 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.