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

Planting zone for 79548 — Rule, TX

ZIP code 79548 (Rule, Haskell County) is in USDA zone 8a: the coldest winter night averages 10 to 15 °F. The median last spring frost is March 23 and the first fall frost November 11.

Where ZIP 79548 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.

Zone8a10 to 15 °F

Coldest night−12.2 to −9.4 °C

Last frostMar 23

First frostNov 11

2012 zone7b

Was 7b 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 8a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Rule, 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 Rule, TX

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 23median — 50% chance of a later frost

Safe for tender plantsApril 12only 10% chance of frost after

First fall frostNovember 11median — 10% chance by Oct 28

Growing season234 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 8 and returns around November 20.

From the NOAA station Stamford 1, TX — 11 miles away, elevation 1,611 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 79548

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 9 – Feb 23

SpinachSow outdoors · Feb 9 – Mar 2

Broccoli, cabbageStart indoors · Jan 12 – Jan 26

Broccoli, cabbageTransplant · Mar 2 – Mar 16

Onion setsPlant outdoors · Feb 23 – Mar 9

PotatoesPlant outdoors · Mar 2 – Mar 16

LettuceSow outdoors · Feb 23 – Mar 9

Carrots, beetsSow outdoors · Mar 2 – Mar 16

TomatoesStart indoors · Jan 26 – Feb 9

TomatoesTransplant · Mar 30 – Apr 13

Peppers, eggplantStart indoors · Jan 12 – Jan 26

Peppers, eggplantTransplant · Apr 6 – Apr 20

BeansSow outdoors · Mar 30 – Apr 13

Sweet cornSow outdoors · Mar 30 – Apr 13

Cucumbers, squashSow outdoors · Mar 30 – Apr 13

Fall lettuce, spinachSow outdoors · Sep 16 – Sep 30

GarlicPlant cloves · Oct 28 – Dec 2

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 23) and first fall frost (Nov 11) 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 79548 came on Feb 8 — about the same time as the 1991–2020 average (Feb 9).

average
Feb 92026
Feb 8

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 8a in Texas

601 plants native to the lower 48 states, recorded in Texas, and rated by the USDA to survive 10 °F or colder — the bottom of zone 8a. 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 Rule, TX.

Soil in Rule, TX

The soil mapped at the center of ZIP 79548 is Tillman — clay loam, well drained.

TextureClay loamholds water and nutrients; slow to drain and warm up

pH7.0neutral; 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: Tillman clay loam, 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 79548; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Rule, TX

Summer high97 °Faverage high, July

Winter low30 °Faverage low, January

Hot days115days a year at 90 °F or more

Freezing nights65nights a year at 32 °F or less

Growing degree days6,030base 50 °F — the season’s usable heat

Longest day14 h 20 mindaylight on June 21

Shortest day9 h 58 mindaylight on December 21

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

Precipitation26.4 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: Stamford 1, TX (11 mi away); precipitation: Rule 0.5 Nw, TX (8 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8a.

Old Glory, TX · 11 mi

795448a

Rochester, TX · 16 mi

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

Questions about 79548

What planting zone is ZIP code 79548?

ZIP code 79548 (Rule, TX) is in USDA hardiness zone 8a on the 2023 map: the coldest night of an average winter reaches 10 to 15 °F (−12.2 to −9.4 °C).

When is the last frost in Rule, TX?

The median last spring frost (32 °F) near 79548 is March 23; after April 12 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Stamford 1 station.

When is the first frost in Rule, TX?

The median first fall frost near 79548 is November 11, giving a median frost-free growing season of 234 days.

When should I plant tomatoes in 79548?

Start tomato seeds indoors around Jan 26 – Feb 9 and set transplants outside around Mar 30 – Apr 13, one to three weeks after the median last frost.

How much rain and snow does 79548 get?

About 26.4 inches of precipitation a year (NOAA 1991–2020 normals, Rule 0.5 Nw station).

How hot do summers get in Rule, TX?

The average high peaks at 97 °F in July, with about 115 days a year at 90 °F or more.

What kind of soil does 79548 have?

The USDA soil survey maps Tillman at the center of ZIP 79548: clay loam, well drained, pH about 7.0 (neutral).

Did spring come early in Rule, TX in 2026?

Spring leaf-out near 79548 came on Feb 8 in 2026, about the same as the 1991–2020 average (Feb 9), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Rule, TX?

Intermediate onions: the longest day near 79548 is 14 h 20 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 79548 change?

Yes. The 2012 USDA map put 79548 in zone 7b; the 2023 map puts it in zone 8a. The newer map uses 1991–2020 data and more weather stations.