Fall in zone 9bPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 94572 (Rodeo, CA)
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, Martinez WTP, CA (7 miles away).
- Average last spring frostFeb 2850% chance of a 32°F freeze after this date
- Average first fall frostNov 2250% chance of a 32°F freeze by this date
- Growing season (frost-free)266 daysmedian, 32°F threshold
- USDA hardiness zone9b25 to 30°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
No soil station with a fresh reading within 62 miles.
4-inch depth
No soil station with a fresh reading within 62 miles.
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 94572 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
No soil reading near this ZIP. Typical extension timing for your region: spring February to March; fall September to October.
Fertilizer window
Lawn region: California coastal and valleys. Timing only; always follow the product label.
- Bermudagrass (warm-season): Spring: Several weeks after the lawn is fully green (April–May) (about Apr 15 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 transplant Sep 27–Oct 18
- Spinach: fall sowing Sep 27–Oct 18
- Arugula: fall sowing Sep 27–Oct 25
- Radish: fall sowing Oct 11–25
- Garlic: fall sowing Oct 11–Nov 8
- Shallot: fall sowing Oct 11–Nov 8
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 22: 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 29 |
| 50% (the "average" last frost) | Feb 28 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 5 |
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 7 |
| 50% (the "average" first frost) | Nov 22 |
| 90% (late: most years have frozen by now) | Dec 10 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 10 | Nov 7 |
| 32°F (freeze) | Feb 28 | Nov 22 |
| 28°F (hard freeze) | Jan 23 | Dec 9 |
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 94572
Dates count from your average last spring frost (Feb 28) and first fall frost (Nov 22). 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 3–17 | Mar 7–21 (transplant) | Jul 26–Aug 23 (transplant) |
| Pepper (sweet and hot) | Dec 20–Jan 3 | Mar 14–28 (transplant) | Aug 2–23 (transplant) |
| Eggplant | Dec 20–Jan 3 | Mar 14–28 (transplant) | Aug 2–23 (transplant) |
| Tomatillo | Jan 3–17 | Mar 7–21 (transplant) | – |
| Lettuce | Jan 3–17 | Feb 7–28 (transplant) Jan 31–Mar 14 (sow outdoors) | Sep 27–Oct 18 (transplant) Sep 13–Oct 11 (sowing) |
| Spinach | – | Jan 17–Feb 7 (sow outdoors) | Sep 27–Oct 18 (sowing) |
| Kale | Jan 3–17 | Jan 31–Feb 14 (transplant) Jan 31–Feb 14 (sow outdoors) | Aug 30–Sep 27 (transplant) Aug 16–Sep 13 (sowing) |
| Collards | Jan 3–17 | Jan 31–Feb 28 (transplant) Jan 31–Feb 28 (sow outdoors) | Aug 30–Sep 27 (transplant) Aug 16–Sep 13 (sowing) |
| Broccoli | Dec 20–Jan 3 | Jan 31–Feb 14 (transplant) | Aug 16–Sep 13 (transplant) |
| Cabbage | Dec 20–Jan 3 | Jan 31–Feb 14 (transplant) | Aug 16–Sep 13 (transplant) |
| Cauliflower | Dec 20–Jan 3 | Feb 14–28 (transplant) | Aug 16–Sep 13 (transplant) |
| Brussels sprouts | Dec 6–20 | Jan 31–Feb 14 (transplant) | Aug 2–23 (transplant) |
| Kohlrabi | Jan 3–17 | Jan 31–Feb 14 (transplant) Jan 31–Feb 14 (sow outdoors) | Sep 13–27 (sowing) |
| Bok choy / Asian greens | – | Jan 31–Feb 14 (sow outdoors) | Sep 27–Oct 11 (sowing) |
| Arugula | – | Jan 31–Feb 28 (sow outdoors) | Sep 27–Oct 25 (sowing) |
| Mustard greens | – | Jan 31–Feb 21 (sow outdoors) | Sep 27–Oct 11 (sowing) |
| Swiss chard | Jan 17–31 | Feb 14–Mar 7 (transplant) Feb 14–Mar 14 (sow outdoors) | Sep 13–27 (sowing) |
| Beet | – | Jan 31–Feb 28 (sow outdoors) | Sep 13–27 (sowing) |
| Carrot | – | Feb 7–Mar 7 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Radish | – | Jan 24–Mar 7 (sow outdoors) | Oct 11–25 (sowing) |
| Turnip | – | Jan 31–Feb 21 (sow outdoors) | Sep 13–27 (sowing) |
| Parsnip | – | Feb 7–28 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 3–31 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Onion (bulbing) | Dec 6–20 | Jan 17–31 (transplant) | – |
| Green onion / scallion | – | Jan 17–Feb 14 (sow outdoors) | Sep 13–27 (sowing) |
| Leek | Dec 6–20 | Jan 31–Feb 14 (transplant) | – |
| Garlic | – | – | Oct 11–Nov 8 (sowing) |
| Shallot | – | Jan 17–31 (transplant) | Oct 11–Nov 8 (sowing) |
| Potato | – | Jan 31–Feb 14 (transplant) | Aug 2–16 (transplant) |
| Sweet potato | – | Mar 21–Apr 4 (transplant) | – |
| Sweet corn | – | Mar 7–21 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 7–21 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Bean, pole | – | Mar 7–21 (sow outdoors) | – |
| Lima bean | – | Mar 14–28 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Mar 21–Apr 11 (sow outdoors) | – |
| Cucumber | Jan 31–Feb 7 | Mar 7–21 (transplant) Mar 7–21 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Summer squash / zucchini | Jan 31–Feb 7 | Mar 7–21 (transplant) Mar 7–21 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Winter squash | Jan 31–Feb 7 | Mar 7–21 (transplant) Mar 7–21 (sow outdoors) | – |
| Pumpkin | – | Mar 7–21 (sow outdoors) | – |
| Watermelon | Jan 31–Feb 7 | Mar 14–28 (transplant) Mar 14–28 (sow outdoors) | – |
| Cantaloupe / muskmelon | Jan 31–Feb 7 | Mar 14–28 (transplant) Mar 14–28 (sow outdoors) | – |
| Okra | Jan 17–31 | Mar 14–28 (transplant) Mar 14–28 (sow outdoors) | – |
| Celery | Dec 6–20 | Mar 7–14 (transplant) | – |
| Basil | Jan 17–31 | Mar 7–21 (transplant) Mar 7–21 (sow outdoors) | – |
| Cilantro | – | Feb 14–Mar 14 (sow outdoors) | Sep 27–Oct 11 (sowing) |
| Parsley | Dec 20–Jan 3 | Feb 14–28 (transplant) Feb 7–28 (sow outdoors) | – |
| Dill | – | Feb 28–Mar 14 (sow outdoors) | Sep 27–Oct 11 (sowing) |
| Sunflower | – | Feb 28–Mar 14 (sow outdoors) | – |
| Asparagus (crowns) | – | Jan 31–Feb 14 (transplant) | – |
| Rhubarb (crowns) | – | Jan 31–Feb 14 (transplant) | – |
| Strawberry (plants) | – | Jan 31–Feb 14 (transplant) | Sep 13–Oct 11 (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.
Where these numbers come from
Station: Martinez WTP, CA (NOAA GHCN-Daily ID USC00045378), elevation 40 ft, 6.5 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Vallejo, CA | 6 mi | Jan 17 | Dec 27 |
| Concord Wwtp, CA | 9 mi | Jan 7 | Dec 19 |
| Concord Buchanan Fld, CA | 10 mi | Jan 9 | Dec 14 |
The average last-frost dates of these stations span 52 days, a rough guide to local variation. See data sources & methods.
Frost questions for 94572
When is the last frost in 94572?
The average (50% chance) last spring freeze of 32°F for ZIP 94572 is February 28. For a more cautious planting date, use April 5, when only 1 year in 10 still sees a later freeze.
When is the first frost in 94572?
The average first fall freeze is November 22. In 1 year in 10 it comes by November 7.
What hardiness zone is 94572?
ZIP 94572 is in USDA zone 9b (25 to 30°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 94572 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
94525 Crockett 94547 Hercules 94569 Port Costa 94564 Pinole 94590 Vallejo 94553 Martinez 94803 Richmond 94592 Vallejo
Other ZIP codes in Contra Costa County
94505 94506 94507 94509 94511 94513 94514 94516 94517 94518 94519 94520 94521 94523 94525 94526 94528 94530 94531 94547 94548 94549 94553 94556 All Contra Costa County frost dates · California 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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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.