Frost dates for ZIP 92284 (Yucca Valley, 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, Yucca Valley, CA (3 miles away).
- Average last spring frostMar 1450% chance of a 32°F freeze after this date
- Average first fall frostNov 2850% chance of a 32°F freeze by this date
- Growing season (frost-free)255 daysmedian, 32°F threshold
- USDA hardiness zone9a20 to 25°F avg. coldest night
This week in your yard
As of Oct 18, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Fall in zone 9a
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 92284 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 29 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 Oct 3–24
- Spinach: fall sowing Oct 3–24
- Arugula: fall sowing Oct 3–31
- Radish: fall sowing Oct 17–31
- Garlic: fall sowing Oct 17–Nov 14
- Shallot: fall sowing Oct 17–Nov 14
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 28: 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 8 |
| 50% (the "average" last frost) | Mar 14 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 1 |
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 10 |
| 50% (the "average" first frost) | Nov 28 |
| 90% (late: most years have frozen by now) | Dec 12 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Mar 31 | Nov 15 |
| 32°F (freeze) | Mar 14 | Nov 28 |
| 28°F (hard freeze) | Feb 7 | Dec 8 |
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 92284
Dates count from your average last spring frost (Mar 14) and first fall frost (Nov 28). 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 17–31 | Mar 21–Apr 4 (transplant) | Aug 1–29 (transplant) |
| Pepper (sweet and hot) | Jan 3–17 | Mar 28–Apr 11 (transplant) | Aug 8–29 (transplant) |
| Eggplant | Jan 3–17 | Mar 28–Apr 11 (transplant) | Aug 8–29 (transplant) |
| Tomatillo | Jan 17–31 | Mar 21–Apr 4 (transplant) | – |
| Lettuce | Jan 17–31 | Feb 21–Mar 14 (transplant) Feb 14–Mar 28 (sow outdoors) | Oct 3–24 (transplant) Sep 19–Oct 17 (sowing) |
| Spinach | – | Jan 31–Feb 21 (sow outdoors) | Oct 3–24 (sowing) |
| Kale | Jan 17–31 | Feb 14–28 (transplant) Feb 14–28 (sow outdoors) | Sep 5–Oct 3 (transplant) Aug 22–Sep 19 (sowing) |
| Collards | Jan 17–31 | Feb 14–Mar 14 (transplant) Feb 14–Mar 14 (sow outdoors) | Sep 5–Oct 3 (transplant) Aug 22–Sep 19 (sowing) |
| Broccoli | Jan 3–17 | Feb 14–28 (transplant) | Aug 22–Sep 19 (transplant) |
| Cabbage | Jan 3–17 | Feb 14–28 (transplant) | Aug 22–Sep 19 (transplant) |
| Cauliflower | Jan 3–17 | Feb 28–Mar 14 (transplant) | Aug 22–Sep 19 (transplant) |
| Brussels sprouts | Dec 20–Jan 3 | Feb 14–28 (transplant) | Aug 8–29 (transplant) |
| Kohlrabi | Jan 17–31 | Feb 14–28 (transplant) Feb 14–28 (sow outdoors) | Sep 19–Oct 3 (sowing) |
| Bok choy / Asian greens | – | Feb 14–28 (sow outdoors) | Oct 3–17 (sowing) |
| Arugula | – | Feb 14–Mar 14 (sow outdoors) | Oct 3–31 (sowing) |
| Mustard greens | – | Feb 14–Mar 7 (sow outdoors) | Oct 3–17 (sowing) |
| Swiss chard | Jan 31–Feb 14 | Feb 28–Mar 21 (transplant) Feb 28–Mar 28 (sow outdoors) | Sep 19–Oct 3 (sowing) |
| Beet | – | Feb 14–Mar 14 (sow outdoors) | Sep 19–Oct 3 (sowing) |
| Carrot | – | Feb 21–Mar 21 (sow outdoors) | Sep 5–19 (sowing) |
| Radish | – | Feb 7–Mar 21 (sow outdoors) | Oct 17–31 (sowing) |
| Turnip | – | Feb 14–Mar 7 (sow outdoors) | Sep 19–Oct 3 (sowing) |
| Parsnip | – | Feb 21–Mar 14 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 17–Feb 14 (sow outdoors) | Sep 5–19 (sowing) |
| Onion (bulbing) | Dec 20–Jan 3 | Jan 31–Feb 14 (transplant) | – |
| Green onion / scallion | – | Jan 31–Feb 28 (sow outdoors) | Sep 19–Oct 3 (sowing) |
| Leek | Dec 20–Jan 3 | Feb 14–28 (transplant) | – |
| Garlic | – | – | Oct 17–Nov 14 (sowing) |
| Shallot | – | Jan 31–Feb 14 (transplant) | Oct 17–Nov 14 (sowing) |
| Potato | – | Feb 14–28 (transplant) | Aug 8–22 (transplant) |
| Sweet potato | – | Apr 4–18 (transplant) | – |
| Sweet corn | – | Mar 21–Apr 4 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 21–Apr 4 (sow outdoors) | Sep 5–19 (sowing) |
| Bean, pole | – | Mar 21–Apr 4 (sow outdoors) | – |
| Lima bean | – | Mar 28–Apr 11 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 4–25 (sow outdoors) | – |
| Cucumber | Feb 14–21 | Mar 21–Apr 4 (transplant) Mar 21–Apr 4 (sow outdoors) | Sep 5–19 (sowing) |
| Summer squash / zucchini | Feb 14–21 | Mar 21–Apr 4 (transplant) Mar 21–Apr 4 (sow outdoors) | Sep 5–19 (sowing) |
| Winter squash | Feb 14–21 | Mar 21–Apr 4 (transplant) Mar 21–Apr 4 (sow outdoors) | – |
| Pumpkin | – | Mar 21–Apr 4 (sow outdoors) | – |
| Watermelon | Feb 14–21 | Mar 28–Apr 11 (transplant) Mar 28–Apr 11 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 14–21 | Mar 28–Apr 11 (transplant) Mar 28–Apr 11 (sow outdoors) | – |
| Okra | Jan 31–Feb 14 | Mar 28–Apr 11 (transplant) Mar 28–Apr 11 (sow outdoors) | – |
| Celery | Dec 20–Jan 3 | Mar 21–28 (transplant) | – |
| Basil | Jan 31–Feb 14 | Mar 21–Apr 4 (transplant) Mar 21–Apr 4 (sow outdoors) | – |
| Cilantro | – | Feb 28–Mar 28 (sow outdoors) | Oct 3–17 (sowing) |
| Parsley | Jan 3–17 | Feb 28–Mar 14 (transplant) Feb 21–Mar 14 (sow outdoors) | – |
| Dill | – | Mar 14–28 (sow outdoors) | Oct 3–17 (sowing) |
| Sunflower | – | Mar 14–28 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 14–28 (transplant) | – |
| Rhubarb (crowns) | – | Feb 14–28 (transplant) | – |
| Strawberry (plants) | – | Feb 14–28 (transplant) | Sep 19–Oct 17 (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: Yucca Valley, CA (NOAA GHCN-Daily ID USC00049888), elevation 3,249 ft, 3.0 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Yucca Mesa, CA | 4 mi | Feb 16 | Dec 10 |
| Joshua Tree, CA | 9 mi | Feb 28 | Dec 1 |
| Morongo Valley N, CA | 9 mi | Feb 25 | Dec 15 |
The average last-frost dates of these stations span 29 days, a rough guide to local variation. See data sources & methods.
Frost questions for 92284
When is the last frost in 92284?
The average (50% chance) last spring freeze of 32°F for ZIP 92284 is March 14. For a more cautious planting date, use April 1, when only 1 year in 10 still sees a later freeze.
When is the first frost in 92284?
The average first fall freeze is November 28. In 1 year in 10 it comes by November 10.
What hardiness zone is 92284?
ZIP 92284 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 92284 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
92268 92252 Joshua Tree 92256 Morongo Valley 92285 Homestead Valley 92240 Desert Hot Springs 92258 Palm Springs 92282 Whitewater 92278 Twentynine Palms
Other ZIP codes in San Bernardino County
91701 91708 91709 91710 91730 91737 91739 91761 91762 91763 91764 91784 91786 92242 92252 92256 92267 92268 92277 92278 92280 92285 92301 92304 All San Bernardino County frost dates · California frost dates
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