Fall in zone 8bPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 92307 (Apple 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, Victorville, CA (10 miles away).
- Average last spring frostMar 1850% chance of a 32°F freeze after this date
- Average first fall frostNov 1150% chance of a 32°F freeze by this date
- Growing season (frost-free)233 daysmedian, 32°F threshold
- USDA hardiness zone8b15 to 20°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 92307 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 May 3 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
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 11: 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 23 |
| 50% (the "average" last frost) | Mar 18 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 12 |
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 27 |
| 50% (the "average" first frost) | Nov 11 |
| 90% (late: most years have frozen by now) | Nov 26 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 11 | Nov 1 |
| 32°F (freeze) | Mar 18 | Nov 11 |
| 28°F (hard freeze) | Feb 22 | Nov 24 |
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 92307
Dates count from your average last spring frost (Mar 18) and first fall frost (Nov 11). 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 21–Feb 4 | Mar 25–Apr 8 (transplant) | Jul 15–Aug 12 (transplant) |
| Pepper (sweet and hot) | Jan 7–21 | Apr 1–15 (transplant) | Jul 22–Aug 12 (transplant) |
| Eggplant | Jan 7–21 | Apr 1–15 (transplant) | Jul 22–Aug 12 (transplant) |
| Tomatillo | Jan 21–Feb 4 | Mar 25–Apr 8 (transplant) | – |
| Lettuce | Jan 21–Feb 4 | Feb 25–Mar 18 (transplant) Feb 18–Apr 1 (sow outdoors) | Sep 16–Oct 7 (transplant) Sep 2–30 (sowing) |
| Spinach | – | Feb 4–25 (sow outdoors) | Sep 16–Oct 7 (sowing) |
| Kale | Jan 21–Feb 4 | Feb 18–Mar 4 (transplant) Feb 18–Mar 4 (sow outdoors) | Aug 19–Sep 16 (transplant) Aug 5–Sep 2 (sowing) |
| Collards | Jan 21–Feb 4 | Feb 18–Mar 18 (transplant) Feb 18–Mar 18 (sow outdoors) | Aug 19–Sep 16 (transplant) Aug 5–Sep 2 (sowing) |
| Broccoli | Jan 7–21 | Feb 18–Mar 4 (transplant) | Aug 5–Sep 2 (transplant) |
| Cabbage | Jan 7–21 | Feb 18–Mar 4 (transplant) | Aug 5–Sep 2 (transplant) |
| Cauliflower | Jan 7–21 | Mar 4–18 (transplant) | Aug 5–Sep 2 (transplant) |
| Brussels sprouts | Dec 24–Jan 7 | Feb 18–Mar 4 (transplant) | Jul 22–Aug 12 (transplant) |
| Kohlrabi | Jan 21–Feb 4 | Feb 18–Mar 4 (transplant) Feb 18–Mar 4 (sow outdoors) | Sep 2–16 (sowing) |
| Bok choy / Asian greens | – | Feb 18–Mar 4 (sow outdoors) | Sep 16–30 (sowing) |
| Arugula | – | Feb 18–Mar 18 (sow outdoors) | Sep 16–Oct 14 (sowing) |
| Mustard greens | – | Feb 18–Mar 11 (sow outdoors) | Sep 16–30 (sowing) |
| Swiss chard | Feb 4–18 | Mar 4–25 (transplant) Mar 4–Apr 1 (sow outdoors) | Sep 2–16 (sowing) |
| Beet | – | Feb 18–Mar 18 (sow outdoors) | Sep 2–16 (sowing) |
| Carrot | – | Feb 25–Mar 25 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Radish | – | Feb 11–Mar 25 (sow outdoors) | Sep 30–Oct 14 (sowing) |
| Turnip | – | Feb 18–Mar 11 (sow outdoors) | Sep 2–16 (sowing) |
| Parsnip | – | Feb 25–Mar 18 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 21–Feb 18 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Onion (bulbing) | Dec 24–Jan 7 | Feb 4–18 (transplant) | – |
| Green onion / scallion | – | Feb 4–Mar 4 (sow outdoors) | Sep 2–16 (sowing) |
| Leek | Dec 24–Jan 7 | Feb 18–Mar 4 (transplant) | – |
| Garlic | – | – | Sep 30–Oct 28 (sowing) |
| Shallot | – | Feb 4–18 (transplant) | Sep 30–Oct 28 (sowing) |
| Potato | – | Feb 18–Mar 4 (transplant) | Jul 22–Aug 5 (transplant) |
| Sweet potato | – | Apr 8–22 (transplant) | – |
| Sweet corn | – | Mar 25–Apr 8 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 25–Apr 8 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Bean, pole | – | Mar 25–Apr 8 (sow outdoors) | – |
| Lima bean | – | Apr 1–15 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 8–29 (sow outdoors) | – |
| Cucumber | Feb 18–25 | Mar 25–Apr 8 (transplant) Mar 25–Apr 8 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Summer squash / zucchini | Feb 18–25 | Mar 25–Apr 8 (transplant) Mar 25–Apr 8 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Winter squash | Feb 18–25 | Mar 25–Apr 8 (transplant) Mar 25–Apr 8 (sow outdoors) | – |
| Pumpkin | – | Mar 25–Apr 8 (sow outdoors) | – |
| Watermelon | Feb 18–25 | Apr 1–15 (transplant) Apr 1–15 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 18–25 | Apr 1–15 (transplant) Apr 1–15 (sow outdoors) | – |
| Okra | Feb 4–18 | Apr 1–15 (transplant) Apr 1–15 (sow outdoors) | – |
| Celery | Dec 24–Jan 7 | Mar 25–Apr 1 (transplant) | – |
| Basil | Feb 4–18 | Mar 25–Apr 8 (transplant) Mar 25–Apr 8 (sow outdoors) | – |
| Cilantro | – | Mar 4–Apr 1 (sow outdoors) | Sep 16–30 (sowing) |
| Parsley | Jan 7–21 | Mar 4–18 (transplant) Feb 25–Mar 18 (sow outdoors) | – |
| Dill | – | Mar 18–Apr 1 (sow outdoors) | Sep 16–30 (sowing) |
| Sunflower | – | Mar 18–Apr 1 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 18–Mar 4 (transplant) | – |
| Rhubarb (crowns) | – | Feb 18–Mar 4 (transplant) | – |
| Strawberry (plants) | – | Feb 18–Mar 4 (transplant) | Sep 2–30 (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: Victorville, CA (NOAA GHCN-Daily ID USC00049325), elevation 2,880 ft, 9.6 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Hesperia 2E, CA | 13 mi | Feb 28 | Dec 1 |
| Lake Arrowhead, CA | 23 mi | May 5 | Nov 2 |
| Barstow, CA | 23 mi | Feb 22 | Nov 23 |
The average last-frost dates of these stations span 76 days, a rough guide to local variation. See data sources & methods.
Frost questions for 92307
When is the last frost in 92307?
The average (50% chance) last spring freeze of 32°F for ZIP 92307 is March 18. For a more cautious planting date, use April 12, when only 1 year in 10 still sees a later freeze.
When is the first frost in 92307?
The average first fall freeze is November 11. In 1 year in 10 it comes by October 27.
What hardiness zone is 92307?
ZIP 92307 is in USDA zone 8b (15 to 20°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 92307 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
92395 Victorville 92308 Apple Valley 92368 92394 Victorville 92356 Lucerne Valley 92392 Victorville 92342 Silver Lakes 92345 Hesperia
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 92284 92285 92301 All San Bernardino 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.