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

Planting zone for 75371 — Dallas, TX

ZIP code 75371 (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 75371 is

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 — 7 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 75371

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 75371 came on Feb 7 — 4 days later than the 1991–2020 average (Feb 3).

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 Dallas, TX

The soil mapped at the center of ZIP 75371 is Bastsil — fine sandy loam, well drained.

TextureFine sandy loamdrains and warms fast; dries out and needs more feeding
pH6.2slightly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1%low — add compost
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Bastsil-Urban land complex, 0 to 2 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 75371; 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

30°40°50°60°70°80°90°100°110°32 °FJanuary: average high 58 °F, low 38 °F 58°38° JanFebruary: average high 62 °F, low 42 °F 62°42° FebMarch: average high 70 °F, low 49 °F 70°49° MarApril: average high 77 °F, low 57 °F 77°57° AprMay: average high 85 °F, low 66 °F 85°66° MayJune: average high 93 °F, low 74 °F 93°74° JunJuly: average high 97 °F, low 78 °F 97°78° JulAugust: average high 97 °F, low 77 °F 97°77° AugSeptember: average high 90 °F, low 70 °F 90°70° SepOctober: average high 80 °F, low 59 °F 80°59° OctNovember: average high 68 °F, low 48 °F 68°48° NovDecember: average high 59 °F, low 40 °F 59°40° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 2.70 in precipitation 2.7 JanFebruary: 2.94 in precipitation 2.9 FebMarch: 3.89 in precipitation 3.9 MarApril: 3.47 in precipitation 3.5 AprMay: 4.77 in precipitation 4.8 MayJune: 4.47 in precipitation 4.5 JunJuly: 2.03 in precipitation 2.0 JulAugust: 2.61 in precipitation 2.6 AugSeptember: 3.24 in precipitation 3.2 SepOctober: 4.76 in precipitation 4.8 OctNovember: 3.13 in precipitation 3.1 NovDecember: 3.37 in precipitation 3.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Dallas Love Field, TX (7 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.

750148b
Irving, TX · <1 mi
750178b
Irving, TX · <1 mi
750838b
Richardson, TX · <1 mi
750858b
Richardson, TX · <1 mi
751388b
Duncanville, TX · <1 mi
751878b
Mesquite, TX · <1 mi
752228b
Dallas, TX · <1 mi
752428b
Dallas, TX · <1 mi

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

Questions about 75371

What planting zone is ZIP code 75371?

ZIP code 75371 (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 75371 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 75371 is November 29, giving a median frost-free growing season of 272 days.

When should I plant tomatoes in 75371?

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 75371 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 75371 have?

The USDA soil survey maps Bastsil at the center of ZIP 75371: fine sandy loam, well drained, pH about 6.2 (slightly acidic).

Did spring come early in Dallas, TX in 2026?

Spring leaf-out near 75371 came on Feb 7 in 2026, 4 days later than the 1991–2020 average (Feb 3), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Dallas, TX?

Intermediate onions: the longest day near 75371 is 14 h 19 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 75371 change?

Yes. The 2012 USDA map put 75371 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.