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

Planting zone for 78801 — Uvalde, TX

ZIP code 78801 (Uvalde, Uvalde County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is March 12 and the first fall frost November 14.

Where ZIP 78801 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.

Zone9a20 to 25 °F

Coldest night−6.7 to −3.9 °C

Last frostMar 12

First frostNov 14

2012 zone9a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 9a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Uvalde, 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 Uvalde, 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 2only 10% chance of frost after

First fall frostNovember 14median — 10% chance by Oct 30

Growing season248 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 1 and returns around November 27.

From the NOAA station Camp Wood, TX — 22 miles away, elevation 1,480 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 78801

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 19 – Oct 3

GarlicPlant cloves · Oct 31 – Dec 5

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 12) and first fall frost (Nov 14) 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 78801 came on Jan 29 — about the same time as the 1991–2020 average (Jan 27).

average
Jan 272026
Jan 29

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 9a in Texas

640 plants native to the lower 48 states, recorded in Texas, and rated by the USDA to survive 20 °F or colder — the bottom of zone 9a. 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 Uvalde, TX.

Soil in Uvalde, TX

The soil mapped at the center of ZIP 78801 is Ector — cobbly clay loam, well drained.

TextureCobbly clay loamholds water and nutrients; slow to drain and warm up

pH8.0alkaline; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter7%high

Hydrologic groupDwater soaks in very slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Ector soils, warm, 1 to 8 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 78801; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Uvalde, TX

Summer high95 °Faverage high, August

Winter low35 °Faverage low, January

Hot days102days a year at 90 °F or more

Freezing nights48nights a year at 32 °F or less

Growing degree days6,513base 50 °F — the season’s usable heat

Longest day14 h 02 mindaylight on June 21

Shortest day10 h 16 mindaylight on December 21

Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb

Precipitation22.9 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: Camp Wood, TX (22 mi away); precipitation: Laguna 3n, TX (11 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Camp Wood, TX · 23 mi

788819a

Sabinal, TX · 24 mi

788329a

Brackettville, TX · 30 mi

788848b

Utopia, TX · 30 mi

All 2 ZIP codes in Uvalde → · Texas planting zones →

Questions about 78801

What planting zone is ZIP code 78801?

ZIP code 78801 (Uvalde, TX) is in USDA hardiness zone 9a on the 2023 map: the coldest night of an average winter reaches 20 to 25 °F (−6.7 to −3.9 °C).

When is the last frost in Uvalde, TX?

The median last spring frost (32 °F) near 78801 is March 12; after April 2 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Camp Wood station.

When is the first frost in Uvalde, TX?

The median first fall frost near 78801 is November 14, giving a median frost-free growing season of 248 days.

When should I plant tomatoes in 78801?

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 78801 get?

About 22.9 inches of precipitation a year (NOAA 1991–2020 normals, Laguna 3n station).

How hot do summers get in Uvalde, TX?

The average high peaks at 95 °F in August, with about 102 days a year at 90 °F or more.

What kind of soil does 78801 have?

The USDA soil survey maps Ector at the center of ZIP 78801: cobbly clay loam, well drained, pH about 8.0 (alkaline).

Did spring come early in Uvalde, TX in 2026?

Spring leaf-out near 78801 came on Jan 29 in 2026, about the same as the 1991–2020 average (Jan 27), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Uvalde, TX?

Short-day onions: the longest day near 78801 is 14 h 02 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.