Fall in zone 9bPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 92230 (Cabazon, 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, Idyllwild Fire Dept, CA (11 miles away).
- Average last spring frostMay 1650% chance of a 32°F freeze after this date
- Average first fall frostOct 2450% chance of a 32°F freeze by this date
- Growing season (frost-free)160 daysmedian, 32°F threshold
- USDA hardiness zone9b25 to 30°F avg. coldest night
Get The Dial for 92230 (Cabazon)
Frost and freeze alerts from the NWS forecast for 92230, the spring soil-temperature heads-up for pre-emergent, and a short weekly yard-timing email.
- Freeze alerts
- Soil-temp heads-up
- 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.
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
77°F 55°F or warmer
24-hour average · latest 73°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Fallbrook 5 NE (40 mi).
4-inch depth
78°F 55°F or warmer
24-hour average · latest 76°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Fallbrook 5 NE (40 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 92230 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 78°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent (annual bluegrass, winter weeds): not yet. Apply as soil cools toward 70°F (typically 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 Jul 1 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
No vegetable planting windows are open this week.
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Oct 24: 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) | Apr 23 |
| 50% (the "average" last frost) | May 16 |
| 10% (cautious: only 1 year in 10 freezes later) | Jun 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) | Oct 1 |
| 50% (the "average" first frost) | Oct 24 |
| 90% (late: most years have frozen by now) | Nov 11 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Jun 1 | Oct 6 |
| 32°F (freeze) | May 16 | Oct 24 |
| 28°F (hard freeze) | Apr 24 | Nov 10 |
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 92230
Dates count from your average last spring frost (May 16) and first fall frost (Oct 24). 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 | Mar 21–Apr 4 | May 23–Jun 6 (transplant) | – |
| Pepper (sweet and hot) | Mar 7–21 | May 30–Jun 13 (transplant) | – |
| Eggplant | Mar 7–21 | May 30–Jun 13 (transplant) | – |
| Tomatillo | Mar 21–Apr 4 | May 23–Jun 6 (transplant) | – |
| Lettuce | Mar 21–Apr 4 | Apr 25–May 16 (transplant) Apr 18–May 30 (sow outdoors) | Aug 29–Sep 19 (transplant) Aug 15–Sep 12 (sowing) |
| Spinach | – | Apr 4–25 (sow outdoors) | Aug 29–Sep 19 (sowing) |
| Kale | Mar 21–Apr 4 | Apr 18–May 2 (transplant) Apr 18–May 2 (sow outdoors) | Aug 1–29 (transplant) Jul 18–Aug 15 (sowing) |
| Collards | Mar 21–Apr 4 | Apr 18–May 16 (transplant) Apr 18–May 16 (sow outdoors) | Aug 1–29 (transplant) Jul 18–Aug 15 (sowing) |
| Broccoli | Mar 7–21 | Apr 18–May 2 (transplant) | Jul 18–Aug 15 (transplant) |
| Cabbage | Mar 7–21 | Apr 18–May 2 (transplant) | Jul 18–Aug 15 (transplant) |
| Cauliflower | Mar 7–21 | May 2–16 (transplant) | Jul 18–Aug 15 (transplant) |
| Brussels sprouts | Feb 21–Mar 7 | Apr 18–May 2 (transplant) | Jul 4–25 (transplant) |
| Kohlrabi | Mar 21–Apr 4 | Apr 18–May 2 (transplant) Apr 18–May 2 (sow outdoors) | Aug 15–29 (sowing) |
| Bok choy / Asian greens | – | Apr 18–May 2 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Arugula | – | Apr 18–May 16 (sow outdoors) | Aug 29–Sep 26 (sowing) |
| Mustard greens | – | Apr 18–May 9 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Swiss chard | Apr 4–18 | May 2–23 (transplant) May 2–30 (sow outdoors) | Aug 15–29 (sowing) |
| Beet | – | Apr 18–May 16 (sow outdoors) | Aug 15–29 (sowing) |
| Carrot | – | Apr 25–May 23 (sow outdoors) | Aug 1–15 (sowing) |
| Radish | – | Apr 11–May 23 (sow outdoors) | Sep 12–26 (sowing) |
| Turnip | – | Apr 18–May 9 (sow outdoors) | Aug 15–29 (sowing) |
| Parsnip | – | Apr 25–May 16 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Mar 21–Apr 18 (sow outdoors) | Aug 1–15 (sowing) |
| Onion (bulbing) | Feb 21–Mar 7 | Apr 4–18 (transplant) | – |
| Green onion / scallion | – | Apr 4–May 2 (sow outdoors) | Aug 15–29 (sowing) |
| Leek | Feb 21–Mar 7 | Apr 18–May 2 (transplant) | – |
| Garlic | – | – | Sep 12–Oct 10 (sowing) |
| Shallot | – | Apr 4–18 (transplant) | Sep 12–Oct 10 (sowing) |
| Potato | – | Apr 18–May 2 (transplant) | Jul 4–18 (transplant) |
| Sweet potato | – | Jun 6–20 (transplant) | – |
| Sweet corn | – | May 23–Jun 6 (sow outdoors) | – |
| Bean, bush (snap) | – | May 23–Jun 6 (sow outdoors) | – |
| Bean, pole | – | May 23–Jun 6 (sow outdoors) | – |
| Lima bean | – | May 30–Jun 13 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 6–27 (sow outdoors) | – |
| Cucumber | Apr 18–25 | May 23–Jun 6 (transplant) May 23–Jun 6 (sow outdoors) | – |
| Summer squash / zucchini | Apr 18–25 | May 23–Jun 6 (transplant) May 23–Jun 6 (sow outdoors) | – |
| Winter squash | Apr 18–25 | May 23–Jun 6 (transplant) May 23–Jun 6 (sow outdoors) | – |
| Pumpkin | – | May 23–Jun 6 (sow outdoors) | – |
| Watermelon | Apr 18–25 | May 30–Jun 13 (transplant) May 30–Jun 13 (sow outdoors) | – |
| Cantaloupe / muskmelon | Apr 18–25 | May 30–Jun 13 (transplant) May 30–Jun 13 (sow outdoors) | – |
| Okra | Apr 4–18 | May 30–Jun 13 (transplant) May 30–Jun 13 (sow outdoors) | – |
| Celery | Feb 21–Mar 7 | May 23–30 (transplant) | – |
| Basil | Apr 4–18 | May 23–Jun 6 (transplant) May 23–Jun 6 (sow outdoors) | – |
| Cilantro | – | May 2–30 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Parsley | Mar 7–21 | May 2–16 (transplant) Apr 25–May 16 (sow outdoors) | – |
| Dill | – | May 16–30 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Sunflower | – | May 16–30 (sow outdoors) | – |
| Asparagus (crowns) | – | Apr 18–May 2 (transplant) | – |
| Rhubarb (crowns) | – | Apr 18–May 2 (transplant) | – |
| Strawberry (plants) | – | Apr 18–May 2 (transplant) | Aug 15–Sep 12 (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: Idyllwild Fire Dept, CA (NOAA GHCN-Daily ID USC00044211), elevation 5,380 ft, 11.1 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Hemet, CA | 14 mi | Jan 10 | Dec 23 |
| San Jacinto, CA | 14 mi | Jan 31 | Dec 10 |
| Palm Springs, CA | 16 mi | Jan 1 | Dec 31 |
The average last-frost dates of these stations span 139 days, a rough guide to local variation. See data sources & methods.
Frost questions for 92230
When is the last frost in 92230?
The average (50% chance) last spring freeze of 32°F for ZIP 92230 is May 16. For a more cautious planting date, use June 5, when only 1 year in 10 still sees a later freeze.
When is the first frost in 92230?
The average first fall freeze is October 24. In 1 year in 10 it comes by October 1.
What hardiness zone is 92230?
ZIP 92230 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 92230 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
92220 Banning 92282 Whitewater 92549 Idyllwild-Pine Cove 92258 Palm Springs 92583 San Jacinto 92223 Beaumont 92262 Palm Springs 92339
Other ZIP codes in Riverside County
91752 92201 92203 92210 92211 92220 92223 92225 92234 92236 92239 92240 92241 92253 92254 92258 92260 92262 92264 92270 92274 92276 92282 92320 All Riverside County frost dates · California frost dates
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
- Soil-temp heads-up
- 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.