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Frost dates for ZIP 79744 (Iraan, TX)

Average last spring and first fall frost dates with 10%, 50% and 90% odds, from NOAA's 1991–2020 climate normals for the nearest weather station, Sheffield, TX (15 miles away).

This week in your yard

As of Oct 18, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants

Soil temperature now

2-inch depth

65°F 55°F or warmer
24-hour average · latest 65°F, as of Oct 18, 1:00 AM CDT

30°50°55°70°90°

Measured at TexMesonet (TWDB) station John Dorris Station, 8 mi away. Daily averages: Thu 80°, Fri 71°, Sat 65°.

4-inch depth

68°F 55°F or warmer
24-hour average · latest 69°F, as of Oct 18, 1:00 AM CDT

30°50°55°70°90°

Measured at TexMesonet (TWDB) station John Dorris Station, 8 mi away. Daily averages: Thu 81°, Fri 75°, Sat 69°.

Fall: Texas A&M AgriLife times fall pre-emergent (for winter weeds such as annual bluegrass) to soil cooling to about 70°F for several days. The 50–55°F band is the spring trigger. Always read and follow the product label.

7-day forecast and frost risk

The latest National Weather Service 7-day forecast and any Frost Advisory or Freeze Warning for 79744 load here. You can also open the NWS forecast for this ZIP.

Pre-emergent

Soil is 68°F at 4 inches. Fall pre-emergent (annual bluegrass, winter weeds): window open as soil cools through the 70s and 60s.

Fertilizer window

Lawn region: South Central plains. Timing only; always follow the product label.

  • Bermudagrass (warm-season): Spring: Several weeks after the lawn is fully green (April–May) (about May 16 here, using green-up about 3–4 weeks after your average last frost); Summer: Every 4–6 weeks through mid-August (heaviest feeder of the group); Late: Light, low-nitrogen/high-potassium feeding about 4 weeks before first frost, or skip. Avoid: Heavy late-fall nitrogen (linked to spring dead spot).
  • Tall fescue (cool-season): Early fall: September (main feeding); Late fall: November, while still green; Late winter: Optional light feeding February–March. Avoid: Feeding after mid-spring and through summer in the transition zone (stress and brown patch).

Plant now

  • Garlic: fall sowing Sep 22–Oct 20
  • Shallot: fall sowing Sep 22–Oct 20

Prune now

No frost-timed pruning windows are open this week.

Your average first frost is Nov 3: skip heavy pruning in the 6–8 weeks before it, because new growth may not harden off in time.

Spring-flowering shrubs are pruned right after their flowers fade, not by date. See the pruning guide.

JanFebMarAprMayJunJulAugSepOctNovDecLight blue: spring freeze risk (90% to 10%). Tan: fall freeze risk (10% to 90%). Dark lines: 50% dates.

Last spring frost odds

Chance of a 32°F freeze after this dateDate
90% (early: most years still freeze after this)Mar 10
50% (the "average" last frost)Mar 31
10% (cautious: only 1 year in 10 freezes later)Apr 19

Most gardeners plant frost-tender crops (tomatoes, peppers, basil) after the 50% date, and closer to the 10% date for less risk.

First fall frost odds

Chance the first 32°F freeze has happened by this dateDate
10% (early: 1 year in 10 freezes this soon)Oct 20
50% (the "average" first frost)Nov 3
90% (late: most years have frozen by now)Nov 17

Light frost, freeze and hard freeze

ThresholdLast spring (50%)First fall (50%)
36°F (light frost possible on clear, calm nights)Apr 12Oct 27
32°F (freeze)Mar 31Nov 3
28°F (hard freeze)Mar 15Nov 12

n/a means NOAA did not publish a date at that threshold for this station (usually because it rarely gets that cold).

Vegetable planting calendar for 79744

Dates count from your average last spring frost (Mar 31) and first fall frost (Nov 3). Half of years have a frost after the spring date, so give tender crops (tomatoes, peppers, squash) some slack.

Start seeds indoorsSpring plantingFall plantingLast frostFirst frostJanFebMarAprMayJunJulAugSepOctNovDecTomatoPepperEggplantTomatilloLettuceSpinachKaleCollardsBroccoliCabbageCauliflowerBrussels sproutsKohlrabiBok choy / Asian greensArugulaMustard greensSwiss chardBeetCarrotRadishTurnipParsnipPeaOnionGreen onion / scallionLeekGarlicShallotPotatoSweet potatoSweet cornBean, bushBean, poleLima beanSouthern peaCucumberSummer squash / zucchiniWinter squashPumpkinWatermelonCantaloupe / muskmelonOkraCeleryBasilCilantroParsleyDillSunflowerAsparagusRhubarbStrawberry
CropStart indoorsSpring plantingFall planting
TomatoFeb 3–17Apr 7–21 (transplant)Jul 7–Aug 4 (transplant)
Pepper (sweet and hot)Jan 20–Feb 3Apr 14–28 (transplant)Jul 14–Aug 4 (transplant)
EggplantJan 20–Feb 3Apr 14–28 (transplant)Jul 14–Aug 4 (transplant)
TomatilloFeb 3–17Apr 7–21 (transplant)–
LettuceFeb 3–17Mar 10–31 (transplant)
Mar 3–Apr 14 (sow outdoors)
Sep 8–29 (transplant)
Aug 25–Sep 22 (sowing)
Spinach–Feb 17–Mar 10 (sow outdoors)Sep 8–29 (sowing)
KaleFeb 3–17Mar 3–17 (transplant)
Mar 3–17 (sow outdoors)
Aug 11–Sep 8 (transplant)
Jul 28–Aug 25 (sowing)
CollardsFeb 3–17Mar 3–31 (transplant)
Mar 3–31 (sow outdoors)
Aug 11–Sep 8 (transplant)
Jul 28–Aug 25 (sowing)
BroccoliJan 20–Feb 3Mar 3–17 (transplant)Jul 28–Aug 25 (transplant)
CabbageJan 20–Feb 3Mar 3–17 (transplant)Jul 28–Aug 25 (transplant)
CauliflowerJan 20–Feb 3Mar 17–31 (transplant)Jul 28–Aug 25 (transplant)
Brussels sproutsJan 6–20Mar 3–17 (transplant)Jul 14–Aug 4 (transplant)
KohlrabiFeb 3–17Mar 3–17 (transplant)
Mar 3–17 (sow outdoors)
Aug 25–Sep 8 (sowing)
Bok choy / Asian greens–Mar 3–17 (sow outdoors)Sep 8–22 (sowing)
Arugula–Mar 3–31 (sow outdoors)Sep 8–Oct 6 (sowing)
Mustard greens–Mar 3–24 (sow outdoors)Sep 8–22 (sowing)
Swiss chardFeb 17–Mar 3Mar 17–Apr 7 (transplant)
Mar 17–Apr 14 (sow outdoors)
Aug 25–Sep 8 (sowing)
Beet–Mar 3–31 (sow outdoors)Aug 25–Sep 8 (sowing)
Carrot–Mar 10–Apr 7 (sow outdoors)Aug 11–25 (sowing)
Radish–Feb 24–Apr 7 (sow outdoors)Sep 22–Oct 6 (sowing)
Turnip–Mar 3–24 (sow outdoors)Aug 25–Sep 8 (sowing)
Parsnip–Mar 10–31 (sow outdoors)–
Pea (garden, snap, snow)–Feb 3–Mar 3 (sow outdoors)Aug 11–25 (sowing)
Onion (bulbing)Jan 6–20Feb 17–Mar 3 (transplant)–
Green onion / scallion–Feb 17–Mar 17 (sow outdoors)Aug 25–Sep 8 (sowing)
LeekJan 6–20Mar 3–17 (transplant)–
Garlic––Sep 22–Oct 20 (sowing)
Shallot–Feb 17–Mar 3 (transplant)Sep 22–Oct 20 (sowing)
Potato–Mar 3–17 (transplant)Jul 14–28 (transplant)
Sweet potato–Apr 21–May 5 (transplant)–
Sweet corn–Apr 7–21 (sow outdoors)–
Bean, bush (snap)–Apr 7–21 (sow outdoors)Aug 11–25 (sowing)
Bean, pole–Apr 7–21 (sow outdoors)–
Lima bean–Apr 14–28 (sow outdoors)–
Southern pea (cowpea, black-eyed pea)–Apr 21–May 12 (sow outdoors)–
CucumberMar 3–10Apr 7–21 (transplant)
Apr 7–21 (sow outdoors)
Aug 11–25 (sowing)
Summer squash / zucchiniMar 3–10Apr 7–21 (transplant)
Apr 7–21 (sow outdoors)
Aug 11–25 (sowing)
Winter squashMar 3–10Apr 7–21 (transplant)
Apr 7–21 (sow outdoors)
–
Pumpkin–Apr 7–21 (sow outdoors)–
WatermelonMar 3–10Apr 14–28 (transplant)
Apr 14–28 (sow outdoors)
–
Cantaloupe / muskmelonMar 3–10Apr 14–28 (transplant)
Apr 14–28 (sow outdoors)
–
OkraFeb 17–Mar 3Apr 14–28 (transplant)
Apr 14–28 (sow outdoors)
–
CeleryJan 6–20Apr 7–14 (transplant)–
BasilFeb 17–Mar 3Apr 7–21 (transplant)
Apr 7–21 (sow outdoors)
–
Cilantro–Mar 17–Apr 14 (sow outdoors)Sep 8–22 (sowing)
ParsleyJan 20–Feb 3Mar 17–31 (transplant)
Mar 10–31 (sow outdoors)
–
Dill–Mar 31–Apr 14 (sow outdoors)Sep 8–22 (sowing)
Sunflower–Mar 31–Apr 14 (sow outdoors)–
Asparagus (crowns)–Mar 3–17 (transplant)–
Rhubarb (crowns)–Mar 3–17 (transplant)–
Strawberry (plants)–Mar 3–17 (transplant)Aug 25–Sep 22 (transplant)

Typical ranges from university extension planting calendars, adjusted to your frost dates. Probabilities, not guarantees. Fall windows that would overlap spring planting are left out, as are fall crops of frost-tender plants where the frost-free season is under 210 days.

Plants that do well here

Texas A&M AgriLife trials name plants that handle Texas conditions: the Texas Superstar® list and the low-care roses from AgriLife trials. Plant frost-tender annuals after March 31 here (the average last frost). More on plants for Texas. Not affiliated with Texas A&M AgriLife.

Where these numbers come from

Station: Sheffield, TX (NOAA GHCN-Daily ID USC00418252), elevation 2,175 ft, 14.9 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).

Nearby stations

StationDistanceLast frost (50%)First frost (50%)
Bakersfield, TX23 miMar 22Nov 11
Mccamey, TX25 miMar 12Nov 16
Big Lake 2, TX34 miMar 20Nov 14

The average last-frost dates of these stations span 19 days, a rough guide to local variation. See data sources & methods.

Frost questions for 79744

When is the last frost in 79744?

The average (50% chance) last spring freeze of 32°F for ZIP 79744 is March 31. For a more cautious planting date, use April 19, when only 1 year in 10 still sees a later freeze.

When is the first frost in 79744?

The average first fall freeze is November 3. In 1 year in 10 it comes by October 20.

What hardiness zone is 79744?

ZIP 79744 is in USDA zone 8b (15 to 20°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.

What is the soil temperature in 79744 right now?

This page shows the latest 2-inch and 4-inch soil temperature from the nearest public soil station (USDA SCAN, NOAA USCRN or TexMesonet), or a labeled estimate when no station is close, against the 50–55°F spring pre-emergent band.

Nearby ZIP codes

79781 Sheffield 79752 McCamey 79778 Rankin 76932 Big Lake 79755 76943 Ozona 78851 76930

Other ZIP codes in Crockett County

76943 All Crockett County frost dates · Texas frost dates