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

Planting zone for 75210 — Dallas, TX

ZIP code 75210 (Dallas, Dallas County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 2 and the first fall frost November 29.

Where ZIP 75210 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 2

First frostNov 29

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 Dallas, 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 Dallas, TX

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 2median — 50% chance of a later frost

Safe for tender plantsMarch 19only 10% chance of frost after

First fall frostNovember 29median — 10% chance by Nov 10

Growing season272 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 18 and returns around December 12.

From the NOAA station Dallas Love Field, TX — 9 miles away, elevation 440 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 75210

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 19 – Feb 2

SpinachSow outdoors · Jan 19 – Feb 9

Broccoli, cabbageStart indoors · Dec 22 – Jan 5

Broccoli, cabbageTransplant · Feb 9 – Feb 23

Onion setsPlant outdoors · Feb 2 – Feb 16

PotatoesPlant outdoors · Feb 9 – Feb 23

LettuceSow outdoors · Feb 2 – Feb 16

Carrots, beetsSow outdoors · Feb 9 – Feb 23

TomatoesStart indoors · Jan 5 – Jan 19

TomatoesTransplant · Mar 9 – Mar 23

Peppers, eggplantStart indoors · Dec 22 – Jan 5

Peppers, eggplantTransplant · Mar 16 – Mar 30

BeansSow outdoors · Mar 9 – Mar 23

Sweet cornSow outdoors · Mar 9 – Mar 23

Cucumbers, squashSow outdoors · Mar 9 – Mar 23

Fall lettuce, spinachSow outdoors · Oct 4 – Oct 18

GarlicPlant cloves · Nov 15 – Dec 20

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 2) and first fall frost (Nov 29) 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 75210 came on Feb 7 — 3 days later than the 1991–2020 average (Feb 4).

average
Feb 42026
Feb 7

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 Dallas, TX.

Soil in Dallas, TX

The soil mapped at the center of ZIP 75210 is Silstid — loamy fine sand, well drained.

TextureLoamy fine sanddrains and warms fast; dries out and needs more feeding

pH6.5neutral; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter0.75%low — add compost

Hydrologic groupAwater soaks in fast

Farmland classNot prime farmlandUSDA classification

Map unit: Silstid-Urban land complex, 0 to 6 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 75210; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Dallas, TX

Summer high97 °Faverage high, July

Winter low38 °Faverage low, January

Hot days108days a year at 90 °F or more

Freezing nights23nights a year at 32 °F or less

Growing degree days7,039base 50 °F — the season’s usable heat

Longest day14 h 19 mindaylight on June 21

Shortest day9 h 59 mindaylight on December 21

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

Precipitation41.4 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: Dallas Love Field, TX (9 mi away); precipitation: Dallas 2.7 Wnw, TX (4 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

Richardson, TX · 2 mi

750858b

Richardson, TX · 2 mi

751388b

Duncanville, TX · 2 mi

751878b

Mesquite, TX · 2 mi

All 104 ZIP codes in Dallas → · Texas planting zones →

Questions about 75210

What planting zone is ZIP code 75210?

ZIP code 75210 (Dallas, 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 Dallas, TX?

The median last spring frost (32 °F) near 75210 is March 2; after March 19 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Dallas Love Field station.

When is the first frost in Dallas, TX?

The median first fall frost near 75210 is November 29, giving a median frost-free growing season of 272 days.

When should I plant tomatoes in 75210?

Start tomato seeds indoors around Jan 5 – Jan 19 and set transplants outside around Mar 9 – Mar 23, one to three weeks after the median last frost.

How much rain and snow does 75210 get?

About 41.4 inches of precipitation a year (NOAA 1991–2020 normals, Dallas 2.7 Wnw station).

How hot do summers get in Dallas, 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 75210 have?

The USDA soil survey maps Silstid at the center of ZIP 75210: loamy fine sand, well drained, pH about 6.5 (neutral).

Did spring come early in Dallas, TX in 2026?

Spring leaf-out near 75210 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 Dallas, TX?

Intermediate onions: the longest day near 75210 is 14 h 19 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 75210 change?

Yes. The 2012 USDA map put 75210 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.