Fall in zone 9aPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 78133 (Canyon Lake, 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, Canyon Dam, TX (4 miles away).
- Average last spring frostMar 150% chance of a 32°F freeze after this date
- Average first fall frostDec 150% chance of a 32°F freeze by this date
- Growing season (frost-free)276 daysmedian, 32°F threshold
- USDA hardiness zone9a20 to 25°F avg. coldest night
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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
67°F 55°F or warmer
24-hour average · latest 65°F, as of Oct 18, 1:00 AM CDT
Measured at TexMesonet (TWDB) station Holt Oaks Ranch, 15 mi away. Daily averages: Thu 78°, Fri 73°, Sat 67°.
4-inch depth
71°F 55°F or warmer
24-hour average · latest 70°F, as of Oct 18, 1:00 AM CDT
Measured at TexMesonet (TWDB) station Holt Oaks Ranch, 15 mi away. Daily averages: Thu 79°, Fri 76°, Sat 71°.
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 78133 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 71°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 Apr 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
- Lettuce: fall sowing Sep 22–Oct 20
- Lettuce: fall transplant Oct 6–27
- Spinach: fall sowing Oct 6–27
- Bok choy / Asian greens: fall sowing Oct 6–20
- Arugula: fall sowing Oct 6–Nov 3
- Mustard greens: fall sowing Oct 6–20
- Cilantro: fall sowing Oct 6–20
- Dill: fall sowing Oct 6–20
- Strawberry (plants): fall transplant Sep 22–Oct 20
Coming up in the next 3 weeks
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Dec 1: 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) | Jan 31 |
| 50% (the "average" last frost) | Mar 1 |
| 10% (cautious: only 1 year in 10 freezes later) | Mar 22 |
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 9 |
| 50% (the "average" first frost) | Dec 1 |
| 90% (late: most years have frozen by now) | Dec 26 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Mar 12 | Nov 16 |
| 32°F (freeze) | Mar 1 | Dec 1 |
| 28°F (hard freeze) | Feb 10 | Dec 19 |
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 78133
Dates count from your average last spring frost (Mar 1) and first fall frost (Dec 1). 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 4–18 | Mar 8–22 (transplant) | Aug 4–Sep 1 (transplant) |
| Pepper (sweet and hot) | Dec 21–Jan 4 | Mar 15–29 (transplant) | Aug 11–Sep 1 (transplant) |
| Eggplant | Dec 21–Jan 4 | Mar 15–29 (transplant) | Aug 11–Sep 1 (transplant) |
| Tomatillo | Jan 4–18 | Mar 8–22 (transplant) | – |
| Lettuce | Jan 4–18 | Feb 8–Mar 1 (transplant) Feb 1–Mar 15 (sow outdoors) | Oct 6–27 (transplant) Sep 22–Oct 20 (sowing) |
| Spinach | – | Jan 18–Feb 8 (sow outdoors) | Oct 6–27 (sowing) |
| Kale | Jan 4–18 | Feb 1–15 (transplant) Feb 1–15 (sow outdoors) | Sep 8–Oct 6 (transplant) Aug 25–Sep 22 (sowing) |
| Collards | Jan 4–18 | Feb 1–Mar 1 (transplant) Feb 1–Mar 1 (sow outdoors) | Sep 8–Oct 6 (transplant) Aug 25–Sep 22 (sowing) |
| Broccoli | Dec 21–Jan 4 | Feb 1–15 (transplant) | Aug 25–Sep 22 (transplant) |
| Cabbage | Dec 21–Jan 4 | Feb 1–15 (transplant) | Aug 25–Sep 22 (transplant) |
| Cauliflower | Dec 21–Jan 4 | Feb 15–Mar 1 (transplant) | Aug 25–Sep 22 (transplant) |
| Brussels sprouts | Dec 7–21 | Feb 1–15 (transplant) | Aug 11–Sep 1 (transplant) |
| Kohlrabi | Jan 4–18 | Feb 1–15 (transplant) Feb 1–15 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Bok choy / Asian greens | – | Feb 1–15 (sow outdoors) | Oct 6–20 (sowing) |
| Arugula | – | Feb 1–Mar 1 (sow outdoors) | Oct 6–Nov 3 (sowing) |
| Mustard greens | – | Feb 1–22 (sow outdoors) | Oct 6–20 (sowing) |
| Swiss chard | Jan 18–Feb 1 | Feb 15–Mar 8 (transplant) Feb 15–Mar 15 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Beet | – | Feb 1–Mar 1 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Carrot | – | Feb 8–Mar 8 (sow outdoors) | Sep 8–22 (sowing) |
| Radish | – | Jan 25–Mar 8 (sow outdoors) | Oct 20–Nov 3 (sowing) |
| Turnip | – | Feb 1–22 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Parsnip | – | Feb 8–Mar 1 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 4–Feb 1 (sow outdoors) | Sep 8–22 (sowing) |
| Onion (bulbing) | Dec 7–21 | Jan 18–Feb 1 (transplant) | – |
| Green onion / scallion | – | Jan 18–Feb 15 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Leek | Dec 7–21 | Feb 1–15 (transplant) | – |
| Garlic | – | – | Oct 20–Nov 17 (sowing) |
| Shallot | – | Jan 18–Feb 1 (transplant) | Oct 20–Nov 17 (sowing) |
| Potato | – | Feb 1–15 (transplant) | Aug 11–25 (transplant) |
| Sweet potato | – | Mar 22–Apr 5 (transplant) | – |
| Sweet corn | – | Mar 8–22 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 8–22 (sow outdoors) | Sep 8–22 (sowing) |
| Bean, pole | – | Mar 8–22 (sow outdoors) | – |
| Lima bean | – | Mar 15–29 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Mar 22–Apr 12 (sow outdoors) | – |
| Cucumber | Feb 1–8 | Mar 8–22 (transplant) Mar 8–22 (sow outdoors) | Sep 8–22 (sowing) |
| Summer squash / zucchini | Feb 1–8 | Mar 8–22 (transplant) Mar 8–22 (sow outdoors) | Sep 8–22 (sowing) |
| Winter squash | Feb 1–8 | Mar 8–22 (transplant) Mar 8–22 (sow outdoors) | – |
| Pumpkin | – | Mar 8–22 (sow outdoors) | – |
| Watermelon | Feb 1–8 | Mar 15–29 (transplant) Mar 15–29 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 1–8 | Mar 15–29 (transplant) Mar 15–29 (sow outdoors) | – |
| Okra | Jan 18–Feb 1 | Mar 15–29 (transplant) Mar 15–29 (sow outdoors) | – |
| Celery | Dec 7–21 | Mar 8–15 (transplant) | – |
| Basil | Jan 18–Feb 1 | Mar 8–22 (transplant) Mar 8–22 (sow outdoors) | – |
| Cilantro | – | Feb 15–Mar 15 (sow outdoors) | Oct 6–20 (sowing) |
| Parsley | Dec 21–Jan 4 | Feb 15–Mar 1 (transplant) Feb 8–Mar 1 (sow outdoors) | – |
| Dill | – | Mar 1–15 (sow outdoors) | Oct 6–20 (sowing) |
| Sunflower | – | Mar 1–15 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 1–15 (transplant) | – |
| Rhubarb (crowns) | – | Feb 1–15 (transplant) | – |
| Strawberry (plants) | – | Feb 1–15 (transplant) | Sep 22–Oct 20 (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 1 here (the average last frost). More on plants for Texas. Not affiliated with Texas A&M AgriLife.
Where these numbers come from
Station: Canyon Dam, TX (NOAA GHCN-Daily ID USC00411429), elevation 1,000 ft, 3.7 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| New Braunfels, TX | 16 mi | Mar 8 | Nov 18 |
| Blanco, TX | 18 mi | Mar 20 | Nov 10 |
| San Marcos, TX | 18 mi | Feb 28 | Nov 29 |
The average last-frost dates of these stations span 23 days, a rough guide to local variation. See data sources & methods.
Frost questions for 78133
When is the last frost in 78133?
The average (50% chance) last spring freeze of 32°F for ZIP 78133 is March 1. For a more cautious planting date, use March 22, when only 1 year in 10 still sees a later freeze.
When is the first frost in 78133?
The average first fall freeze is December 1. In 1 year in 10 it comes by November 9.
What hardiness zone is 78133?
ZIP 78133 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 78133 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
78623 Canyon Lake 78070 Canyon Lake 78132 Canyon Lake 78676 Wimberley 78163 Bulverde 78666 San Marcos 78261 78266 Garden Ridge
Other ZIP codes in Comal County
78070 78132 78163 78266 78623 All Comal County frost dates · Texas frost dates
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Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
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- Weekly yard to-dos
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.