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

Planting zone for 79029 — Dumas, TX

ZIP code 79029 (Dumas, Moore County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 21 and the first fall frost October 24.

Where ZIP 79029 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostApr 21
First frostOct 24
2012 zone6b

Was 6b 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 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Dumas, 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 Dumas, TX

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 21median — 50% chance of a later frost
Safe for tender plantsMay 9only 10% chance of frost after
First fall frostOctober 24median — 10% chance by Oct 5
Growing season183 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 10 and returns around November 2.

From the NOAA station Dumas, TX — 4 miles away, elevation 3,655 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 79029

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 10 – Mar 24
SpinachSow outdoors · Mar 10 – Mar 31
Broccoli, cabbageStart indoors · Feb 10 – Feb 24
Broccoli, cabbageTransplant · Mar 31 – Apr 14
Onion setsPlant outdoors · Mar 24 – Apr 7
PotatoesPlant outdoors · Mar 31 – Apr 14
LettuceSow outdoors · Mar 24 – Apr 7
Carrots, beetsSow outdoors · Mar 31 – Apr 14
TomatoesStart indoors · Feb 24 – Mar 10
TomatoesTransplant · Apr 28 – May 12
Peppers, eggplantStart indoors · Feb 10 – Feb 24
Peppers, eggplantTransplant · May 5 – May 19
BeansSow outdoors · Apr 28 – May 12
Sweet cornSow outdoors · Apr 28 – May 12
Cucumbers, squashSow outdoors · Apr 28 – May 12
Fall lettuce, spinachSow outdoors · Aug 29 – Sep 12
GarlicPlant cloves · Oct 10 – Nov 14
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 21) and first fall frost (Oct 24) 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 79029 came on Feb 13 — 19 days earlier than the 1991–2020 average (Mar 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).

Soil in Dumas, TX

The soil mapped at the center of ZIP 79029 is Gruver — clay loam, well drained.

TextureClay loamholds water and nutrients; slow to drain and warm up
pH7.2neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2%moderate
Hydrologic groupCwater soaks in slowly
Farmland classprime farmlandUSDA classification

Map unit: Gruver clay loam, 0 to 1 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 79029; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Dumas, TX

Summer high92 °Faverage high, July
Winter low22 °Faverage low, January
Hot days73days a year at 90 °F or more
Freezing nights124nights a year at 32 °F or less
Growing degree days4,137base 50 °F — the season’s usable heat
Longest day14 h 36 mindaylight on June 21
Shortest day9 h 43 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation17.7 inper year, rain and melted snow
Snowfall9 inper year; 5 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 49 °F, low 22 °F 49°22° JanFebruary: average high 53 °F, low 24 °F 53°24° FebMarch: average high 62 °F, low 32 °F 62°32° MarApril: average high 70 °F, low 39 °F 70°39° AprMay: average high 79 °F, low 50 °F 79°50° MayJune: average high 89 °F, low 60 °F 89°60° JunJuly: average high 92 °F, low 65 °F 92°65° JulAugust: average high 90 °F, low 64 °F 90°64° AugSeptember: average high 83 °F, low 56 °F 83°56° SepOctober: average high 72 °F, low 43 °F 72°43° OctNovember: average high 59 °F, low 31 °F 59°31° NovDecember: average high 49 °F, low 23 °F 49°23° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″January: 0.39 in precipitation, 2.2 in snowfall 0.4❄2 JanFebruary: 0.40 in precipitation, 0.8 in snowfall 0.4❄1 FebMarch: 0.98 in precipitation, 1.2 in snowfall 1.0❄1 MarApril: 1.38 in precipitation, 0.1 in snowfall 1.4 AprMay: 1.91 in precipitation 1.9 MayJune: 2.27 in precipitation 2.3 JunJuly: 2.72 in precipitation 2.7 JulAugust: 2.99 in precipitation 3.0 AugSeptember: 1.66 in precipitation 1.7 SepOctober: 1.80 in precipitation, 0.4 in snowfall 1.8 OctNovember: 0.52 in precipitation, 1.3 in snowfall 0.5❄1 NovDecember: 0.68 in precipitation, 3.1 in snowfall 0.7❄3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Dumas, TX (4 mi away); precipitation: Dumas, TX (4 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7a.

790137a
Cactus, TX · 10 mi
790447a
Hartley, TX · 19 mi
790867a
Sunray, TX · 21 mi
790587a
Masterson, TX · 22 mi
790187a
Channing, TX · 22 mi
790847a
Stratford, TX · 25 mi
790627a
Morse, TX · 28 mi
790837a
Stinnett, TX · 29 mi

Texas planting zones →

Questions about 79029

What planting zone is ZIP code 79029?

ZIP code 79029 (Dumas, TX) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Dumas, TX?

The median last spring frost (32 °F) near 79029 is April 21; after May 9 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Dumas station.

When is the first frost in Dumas, TX?

The median first fall frost near 79029 is October 24, giving a median frost-free growing season of 183 days.

When should I plant tomatoes in 79029?

Start tomato seeds indoors around Feb 24 – Mar 10 and set transplants outside around Apr 28 – May 12, one to three weeks after the median last frost.

How much rain and snow does 79029 get?

About 17.7 inches of precipitation a year and 9 inches of snowfall (NOAA 1991–2020 normals, Dumas station).

How hot do summers get in Dumas, TX?

The average high peaks at 92 °F in July, with about 73 days a year at 90 °F or more.

What kind of soil does 79029 have?

The USDA soil survey maps Gruver at the center of ZIP 79029: clay loam, well drained, pH about 7.2 (neutral).

Did spring come early in Dumas, TX in 2026?

Spring leaf-out near 79029 came on Feb 13 in 2026, 19 days earlier than the 1991–2020 average (Mar 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Dumas, TX?

Intermediate onions: the longest day near 79029 is 14 h 36 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 79029 change?

Yes. The 2012 USDA map put 79029 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.