Frost dates for ZIP 93553 (Los Angeles County, 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, Pearblossom, CA (4 miles away).
- Average last spring frostMar 1350% 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)258 daysmedian, 32°F threshold
- USDA hardiness zone8b15 to 20°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 8b
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 93553 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 28 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) | Feb 10 |
| 50% (the "average" last frost) | Mar 13 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 17 |
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 12 |
| 50% (the "average" first frost) | Dec 1 |
| 90% (late: most years have frozen by now) | Dec 18 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 14 | Nov 16 |
| 32°F (freeze) | Mar 13 | Dec 1 |
| 28°F (hard freeze) | Feb 9 | Dec 12 |
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 93553
Dates count from your average last spring frost (Mar 13) 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 16–30 | Mar 20–Apr 3 (transplant) | Aug 4–Sep 1 (transplant) |
| Pepper (sweet and hot) | Jan 2–16 | Mar 27–Apr 10 (transplant) | Aug 11–Sep 1 (transplant) |
| Eggplant | Jan 2–16 | Mar 27–Apr 10 (transplant) | Aug 11–Sep 1 (transplant) |
| Tomatillo | Jan 16–30 | Mar 20–Apr 3 (transplant) | – |
| Lettuce | Jan 16–30 | Feb 20–Mar 13 (transplant) Feb 13–Mar 27 (sow outdoors) | Oct 6–27 (transplant) Sep 22–Oct 20 (sowing) |
| Spinach | – | Jan 30–Feb 20 (sow outdoors) | Oct 6–27 (sowing) |
| Kale | Jan 16–30 | Feb 13–27 (transplant) Feb 13–27 (sow outdoors) | Sep 8–Oct 6 (transplant) Aug 25–Sep 22 (sowing) |
| Collards | Jan 16–30 | Feb 13–Mar 13 (transplant) Feb 13–Mar 13 (sow outdoors) | Sep 8–Oct 6 (transplant) Aug 25–Sep 22 (sowing) |
| Broccoli | Jan 2–16 | Feb 13–27 (transplant) | Aug 25–Sep 22 (transplant) |
| Cabbage | Jan 2–16 | Feb 13–27 (transplant) | Aug 25–Sep 22 (transplant) |
| Cauliflower | Jan 2–16 | Feb 27–Mar 13 (transplant) | Aug 25–Sep 22 (transplant) |
| Brussels sprouts | Dec 19–Jan 2 | Feb 13–27 (transplant) | Aug 11–Sep 1 (transplant) |
| Kohlrabi | Jan 16–30 | Feb 13–27 (transplant) Feb 13–27 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Bok choy / Asian greens | – | Feb 13–27 (sow outdoors) | Oct 6–20 (sowing) |
| Arugula | – | Feb 13–Mar 13 (sow outdoors) | Oct 6–Nov 3 (sowing) |
| Mustard greens | – | Feb 13–Mar 6 (sow outdoors) | Oct 6–20 (sowing) |
| Swiss chard | Jan 30–Feb 13 | Feb 27–Mar 20 (transplant) Feb 27–Mar 27 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Beet | – | Feb 13–Mar 13 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Carrot | – | Feb 20–Mar 20 (sow outdoors) | Sep 8–22 (sowing) |
| Radish | – | Feb 6–Mar 20 (sow outdoors) | Oct 20–Nov 3 (sowing) |
| Turnip | – | Feb 13–Mar 6 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Parsnip | – | Feb 20–Mar 13 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 16–Feb 13 (sow outdoors) | Sep 8–22 (sowing) |
| Onion (bulbing) | Dec 19–Jan 2 | Jan 30–Feb 13 (transplant) | – |
| Green onion / scallion | – | Jan 30–Feb 27 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Leek | Dec 19–Jan 2 | Feb 13–27 (transplant) | – |
| Garlic | – | – | Oct 20–Nov 17 (sowing) |
| Shallot | – | Jan 30–Feb 13 (transplant) | Oct 20–Nov 17 (sowing) |
| Potato | – | Feb 13–27 (transplant) | Aug 11–25 (transplant) |
| Sweet potato | – | Apr 3–17 (transplant) | – |
| Sweet corn | – | Mar 20–Apr 3 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 20–Apr 3 (sow outdoors) | Sep 8–22 (sowing) |
| Bean, pole | – | Mar 20–Apr 3 (sow outdoors) | – |
| Lima bean | – | Mar 27–Apr 10 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 3–24 (sow outdoors) | – |
| Cucumber | Feb 13–20 | Mar 20–Apr 3 (transplant) Mar 20–Apr 3 (sow outdoors) | Sep 8–22 (sowing) |
| Summer squash / zucchini | Feb 13–20 | Mar 20–Apr 3 (transplant) Mar 20–Apr 3 (sow outdoors) | Sep 8–22 (sowing) |
| Winter squash | Feb 13–20 | Mar 20–Apr 3 (transplant) Mar 20–Apr 3 (sow outdoors) | – |
| Pumpkin | – | Mar 20–Apr 3 (sow outdoors) | – |
| Watermelon | Feb 13–20 | Mar 27–Apr 10 (transplant) Mar 27–Apr 10 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 13–20 | Mar 27–Apr 10 (transplant) Mar 27–Apr 10 (sow outdoors) | – |
| Okra | Jan 30–Feb 13 | Mar 27–Apr 10 (transplant) Mar 27–Apr 10 (sow outdoors) | – |
| Celery | Dec 19–Jan 2 | Mar 20–27 (transplant) | – |
| Basil | Jan 30–Feb 13 | Mar 20–Apr 3 (transplant) Mar 20–Apr 3 (sow outdoors) | – |
| Cilantro | – | Feb 27–Mar 27 (sow outdoors) | Oct 6–20 (sowing) |
| Parsley | Jan 2–16 | Feb 27–Mar 13 (transplant) Feb 20–Mar 13 (sow outdoors) | – |
| Dill | – | Mar 13–27 (sow outdoors) | Oct 6–20 (sowing) |
| Sunflower | – | Mar 13–27 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 13–27 (transplant) | – |
| Rhubarb (crowns) | – | Feb 13–27 (transplant) | – |
| Strawberry (plants) | – | Feb 13–27 (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.
Where these numbers come from
Station: Pearblossom, CA (NOAA GHCN-Daily ID USC00046773), elevation 3,101 ft, 4.0 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Palmdale, CA | 15 mi | Mar 10 | Nov 19 |
| Wrightwood, CA | 16 mi | May 16 | Oct 13 |
| Palmdale AP, CA | 17 mi | Mar 18 | Nov 15 |
The average last-frost dates of these stations span 68 days, a rough guide to local variation. See data sources & methods.
Frost questions for 93553
When is the last frost in 93553?
The average (50% chance) last spring freeze of 32°F for ZIP 93553 is March 13. For a more cautious planting date, use April 17, when only 1 year in 10 still sees a later freeze.
When is the first frost in 93553?
The average first fall freeze is December 1. In 1 year in 10 it comes by November 12.
What hardiness zone is 93553?
ZIP 93553 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 93553 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
93543 Sun Village 93563 93544 93550 Palmdale 92397 Wrightwood 93591 Palmdale 93552 Palmdale 91702 Azusa
Other ZIP codes in Los Angeles County
90001 90002 90003 90004 90005 90006 90007 90008 90010 90011 90012 90013 90014 90015 90016 90017 90018 90019 90020 90021 90022 90023 90024 90025 All Los Angeles County frost dates · California frost dates
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