Frost dates for ZIP 78026 (Jourdanton, 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, Cross, TX (10 miles away).
- Average last spring frostMar 850% chance of a 32°F freeze after this date
- Average first fall frostNov 1750% chance of a 32°F freeze by this date
- Growing season (frost-free)254 daysmedian, 32°F threshold
- USDA hardiness zone9a20 to 25°F avg. coldest night
Get The Dial for 78026 (Jourdanton)
Frost and freeze alerts from the NWS forecast for 78026, the spring soil-temperature heads-up for pre-emergent, and a short weekly yard-timing email.
Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.
This week in your yard
As of Oct 17, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
72°F 55°F or warmer
24-hour average · latest 70°F, as of Oct 17, 11:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Y Bar Ranch West (20 mi), Three Oaks (31 mi), Great Horizon Ranch (48 mi).
4-inch depth
75°F 55°F or warmer
24-hour average · latest 74°F, as of Oct 17, 11:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Y Bar Ranch West (20 mi), Three Oaks (31 mi), Great Horizon Ranch (48 mi).
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 78026 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 75°F at 4 inches (estimated soil temperature, not a station reading). 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 Apr 23 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
- Arugula: fall sowing Sep 22–Oct 20
- Radish: fall sowing Oct 6–20
- Garlic: fall sowing Oct 6–Nov 3
- Shallot: fall sowing Oct 6–Nov 3
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 17: 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.
Last spring frost odds
| Chance of a 32°F freeze after this date | Date |
|---|---|
| 90% (early: most years still freeze after this) | Feb 17 |
| 50% (the "average" last frost) | Mar 8 |
| 10% (cautious: only 1 year in 10 freezes later) | Mar 31 |
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 date | Date |
|---|---|
| 10% (early: 1 year in 10 freezes this soon) | Nov 1 |
| 50% (the "average" first frost) | Nov 17 |
| 90% (late: most years have frozen by now) | Dec 7 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Mar 20 | Nov 8 |
| 32°F (freeze) | Mar 8 | Nov 17 |
| 28°F (hard freeze) | Feb 26 | Nov 30 |
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 78026
Dates count from your average last spring frost (Mar 8) and first fall frost (Nov 17). Half of years have a frost after the spring date, so give tender crops (tomatoes, peppers, squash) some slack.
| Crop | Start indoors | Spring planting | Fall planting |
|---|---|---|---|
| Tomato | Jan 11–25 | Mar 15–29 (transplant) | Jul 21–Aug 18 (transplant) |
| Pepper (sweet and hot) | Dec 28–Jan 11 | Mar 22–Apr 5 (transplant) | Jul 28–Aug 18 (transplant) |
| Eggplant | Dec 28–Jan 11 | Mar 22–Apr 5 (transplant) | Jul 28–Aug 18 (transplant) |
| Tomatillo | Jan 11–25 | Mar 15–29 (transplant) | – |
| Lettuce | Jan 11–25 | Feb 15–Mar 8 (transplant) Feb 8–Mar 22 (sow outdoors) | Sep 22–Oct 13 (transplant) Sep 8–Oct 6 (sowing) |
| Spinach | – | Jan 25–Feb 15 (sow outdoors) | Sep 22–Oct 13 (sowing) |
| Kale | Jan 11–25 | Feb 8–22 (transplant) Feb 8–22 (sow outdoors) | Aug 25–Sep 22 (transplant) Aug 11–Sep 8 (sowing) |
| Collards | Jan 11–25 | Feb 8–Mar 8 (transplant) Feb 8–Mar 8 (sow outdoors) | Aug 25–Sep 22 (transplant) Aug 11–Sep 8 (sowing) |
| Broccoli | Dec 28–Jan 11 | Feb 8–22 (transplant) | Aug 11–Sep 8 (transplant) |
| Cabbage | Dec 28–Jan 11 | Feb 8–22 (transplant) | Aug 11–Sep 8 (transplant) |
| Cauliflower | Dec 28–Jan 11 | Feb 22–Mar 8 (transplant) | Aug 11–Sep 8 (transplant) |
| Brussels sprouts | Dec 14–28 | Feb 8–22 (transplant) | Jul 28–Aug 18 (transplant) |
| Kohlrabi | Jan 11–25 | Feb 8–22 (transplant) Feb 8–22 (sow outdoors) | Sep 8–22 (sowing) |
| Bok choy / Asian greens | – | Feb 8–22 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Arugula | – | Feb 8–Mar 8 (sow outdoors) | Sep 22–Oct 20 (sowing) |
| Mustard greens | – | Feb 8–Mar 1 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Swiss chard | Jan 25–Feb 8 | Feb 22–Mar 15 (transplant) Feb 22–Mar 22 (sow outdoors) | Sep 8–22 (sowing) |
| Beet | – | Feb 8–Mar 8 (sow outdoors) | Sep 8–22 (sowing) |
| Carrot | – | Feb 15–Mar 15 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Radish | – | Feb 1–Mar 15 (sow outdoors) | Oct 6–20 (sowing) |
| Turnip | – | Feb 8–Mar 1 (sow outdoors) | Sep 8–22 (sowing) |
| Parsnip | – | Feb 15–Mar 8 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 11–Feb 8 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Onion (bulbing) | Dec 14–28 | Jan 25–Feb 8 (transplant) | – |
| Green onion / scallion | – | Jan 25–Feb 22 (sow outdoors) | Sep 8–22 (sowing) |
| Leek | Dec 14–28 | Feb 8–22 (transplant) | – |
| Garlic | – | – | Oct 6–Nov 3 (sowing) |
| Shallot | – | Jan 25–Feb 8 (transplant) | Oct 6–Nov 3 (sowing) |
| Potato | – | Feb 8–22 (transplant) | Jul 28–Aug 11 (transplant) |
| Sweet potato | – | Mar 29–Apr 12 (transplant) | – |
| Sweet corn | – | Mar 15–29 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 15–29 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Bean, pole | – | Mar 15–29 (sow outdoors) | – |
| Lima bean | – | Mar 22–Apr 5 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Mar 29–Apr 19 (sow outdoors) | – |
| Cucumber | Feb 8–15 | Mar 15–29 (transplant) Mar 15–29 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Summer squash / zucchini | Feb 8–15 | Mar 15–29 (transplant) Mar 15–29 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Winter squash | Feb 8–15 | Mar 15–29 (transplant) Mar 15–29 (sow outdoors) | – |
| Pumpkin | – | Mar 15–29 (sow outdoors) | – |
| Watermelon | Feb 8–15 | Mar 22–Apr 5 (transplant) Mar 22–Apr 5 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 8–15 | Mar 22–Apr 5 (transplant) Mar 22–Apr 5 (sow outdoors) | – |
| Okra | Jan 25–Feb 8 | Mar 22–Apr 5 (transplant) Mar 22–Apr 5 (sow outdoors) | – |
| Celery | Dec 14–28 | Mar 15–22 (transplant) | – |
| Basil | Jan 25–Feb 8 | Mar 15–29 (transplant) Mar 15–29 (sow outdoors) | – |
| Cilantro | – | Feb 22–Mar 22 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Parsley | Dec 28–Jan 11 | Feb 22–Mar 8 (transplant) Feb 15–Mar 8 (sow outdoors) | – |
| Dill | – | Mar 8–22 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Sunflower | – | Mar 8–22 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 8–22 (transplant) | – |
| Rhubarb (crowns) | – | Feb 8–22 (transplant) | – |
| Strawberry (plants) | – | Feb 8–22 (transplant) | Sep 8–Oct 6 (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 8 here (the average last frost). More on plants for Texas. Not affiliated with Texas A&M AgriLife.
Where these numbers come from
Station: Cross, TX (NOAA GHCN-Daily ID USC00412125), elevation 285 ft, 10.3 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Pleasanton, TX | 16 mi | Feb 27 | Nov 28 |
| Charlotte 5 NNW, TX | 17 mi | Feb 26 | Nov 28 |
| Poteet, TX | 19 mi | Feb 22 | Dec 1 |
The average last-frost dates of these stations span 17 days, a rough guide to local variation. See data sources & methods.
Frost questions for 78026
When is the last frost in 78026?
The average (50% chance) last spring freeze of 32°F for ZIP 78026 is March 8. For a more cautious planting date, use March 31, when only 1 year in 10 still sees a later freeze.
When is the first frost in 78026?
The average first fall freeze is November 17. In 1 year in 10 it comes by November 1.
What hardiness zone is 78026?
ZIP 78026 is in USDA zone 9a (20 to 25°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 78026 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
78012 Christine 78011 Charlotte 78064 Pleasanton 78008 78075 78007 78005 Bigfoot 78062
Other ZIP codes in Atascosa County
78008 78011 78012 78050 78052 78062 78064 78065 78069 All Atascosa County frost dates · Texas frost dates
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.