Frost Dates for Lompoc, CA 93436
Last spring frost February 8 · First fall frost November 30 · 295 frost-free days · USDA Zone 10a
ZIP 93436 has about 55,800 people, the largest of 2 ZIP codes in Lompoc.
Very long season: 295 frost-free days. Spring frost risk spans November 14–April 16 (153 days). Fall frost risk spans November 6–December 17 (41 days).
Frost probability for 93436
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 16 | February 8 | November 14 |
| Fall (first frost) | November 6 | November 30 | December 17 |
Dates come from NOAA 1971–2000 freeze probabilities at LOMPOC (6.9 km away); the 50% date is the median year.
Frost dates by ZIP code in Lompoc, CA
| ZIP | Last spring frost (50%) | First fall frost (50%) | Zone |
|---|---|---|---|
| 93436 | February 8 | November 30 | 10a |
| 93437 | February 8 | November 30 | 10a |
Which crops fit a 295-day season in Lompoc
In Lompoc (295 frost-free days, a very long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Jan 4 | Feb 22–Mar 1 | 253 | fits: 80 days to maturity, 253 available after Feb 22. | Jul 31 |
| Pepper | Dec 28 | Feb 22–Mar 1 | 253 | fits: 75 days to maturity, 253 available after Feb 22. | Aug 5 |
| Lettuce | Dec 14 | Jan 11–Jan 18 | 330 | two-plantings: Plant Jan 11 and again by Oct 9; both mature before Dec 7. | Oct 9 |
| Carrots | — | Jan 18–Jan 25 | 337 | fits: 70 days to maturity, 337 available after Jan 18. | Sep 28 |
| Cucumber | Jan 18 | Feb 22–Mar 1 | 267 | two-plantings: Plant Feb 22 and again by Sep 3; both mature before Nov 16. | Sep 3 |
| Beans | — | Feb 15–Mar 1 | 281 | two-plantings: Plant Feb 15 and again by Sep 10; both mature before Nov 23. | Sep 10 |
| Peas | — | Dec 14–Feb 22 | 358 | fits: 65 days to maturity, 358 available after Dec 14. | Sep 19 |
| Zucchini | Jan 25 | Feb 22–Mar 1 | 267 | two-plantings: Plant Feb 22 and again by Sep 8; both mature before Nov 16. | Sep 8 |
| Onion | Nov 16 | Jan 11–Jan 25 | 330 | fits: 100 days to maturity, 330 available after Jan 11. | — |
| Spinach | — | Dec 14–Feb 1 | 372 | two-plantings: Plant Dec 14 and again by Oct 28; both mature before Dec 21. | Oct 28 |
| Kale | Nov 30 | Jan 11–Jan 25 | 344 | two-plantings: Plant Jan 11 and again by Oct 13; both mature before Dec 21. | Oct 13 |
| Broccoli | Dec 14 | Jan 11–Jan 25 | 330 | fits: 80 days to maturity, 330 available after Jan 11. | Sep 4 |
| Cabbage | Dec 14 | Jan 11–Jan 25 | 344 | fits: 70 days to maturity, 344 available after Jan 11. | Sep 28 |
| Radish | — | Dec 14–Mar 8 | 358 | two-plantings: Plant Dec 14 and again by Oct 29; both mature before Dec 7. | Oct 29 |
| Beets | — | Dec 14–Mar 8 | 358 | two-plantings: Plant Dec 14 and again by Sep 29; both mature before Dec 7. | Sep 29 |
| Potatoes | — | Jan 25–Feb 1 | 316 | fits: 90 days to maturity, 316 available after Jan 25. | — |
| Garlic | — | Nov 30 | 400 | overwinter: Plant Nov 30 to Dec 21; harvest the following summer. | Dec 21 |
| Strawberry | — | Jan 4–Mar 1 | 351 | perennial: A perennial: plant Jan 4; it fruits from the following year and keeps producing for several years. | — |
| Corn | Jan 11 | Feb 15–Feb 22 | 267 | fits: 75 days to maturity, 267 available after Feb 15. | Aug 12 |
| Pumpkin | Jan 25 | Feb 22–Feb 22 | 260 | fits: 100 days to maturity, 260 available after Feb 22. | Jul 18 |
| Cauliflower | Dec 28 | Feb 1–Feb 15 | 309 | fits: 75 days to maturity, 309 available after Feb 1. | Sep 9 |
| Swiss Chard | Dec 14 | Jan 25–Jan 25 | 316 | two-plantings: Plant Jan 25 and again by Sep 29; both mature before Dec 7. | Sep 29 |
| Arugula | — | Dec 14–Mar 8 | 372 | two-plantings: Plant Dec 14 and again by Oct 28; both mature before Dec 21. | Oct 28 |
| Brussel Sprouts | Dec 14 | Jan 11–Jan 25 | 344 | fits: 100 days to maturity, 344 available after Jan 11. | Aug 29 |
| Butternut Squash | Jan 25 | Feb 22–Mar 1 | 260 | fits: 100 days to maturity, 260 available after Feb 22. | Jul 18 |
| Eggplant | Dec 21 | Feb 22–Mar 1 | 253 | fits: 70 days to maturity, 253 available after Feb 22. | Aug 10 |
| Okra | Jan 11 | Feb 15–Feb 22 | 274 | two-plantings: Plant Feb 15 and again by Sep 8; both mature before Nov 16. | Sep 8 |
| Basil | Jan 4 | Mar 1–Mar 1 | 260 | two-plantings: Plant Mar 1 and again by Sep 3; both mature before Nov 16. | Sep 3 |
| Cilantro | — | Jan 11–Feb 1 | 330 | two-plantings: Plant Jan 11 and again by Oct 4; both mature before Dec 7. | Oct 4 |
| Parsley | Nov 30 | Feb 15–Feb 22 | 295 | fits: 70 days to maturity, 295 available after Feb 15. | Sep 14 |
| Celery | Nov 30 | Feb 15–Mar 1 | 295 | fits: 120 days to maturity, 295 available after Feb 15. | Jul 26 |
| Scallions | Nov 30 | Jan 11–Jan 25 | 344 | two-plantings: Plant Jan 11 and again by Oct 8; both mature before Dec 21. | Oct 8 |
| Turnip | — | Jan 11–Jan 25 | 344 | two-plantings: Plant Jan 11 and again by Oct 18; both mature before Dec 21. | Oct 18 |
| Kohlrabi | — | Dec 28–Jan 11 | 358 | two-plantings: Plant Dec 28 and again by Oct 13; both mature before Dec 21. | Oct 13 |
| Bok Choy | Jan 11 | Feb 1–Feb 8 | 309 | two-plantings: Plant Feb 1 and again by Oct 9; both mature before Dec 7. | Oct 9 |
| Collards | Nov 30 | Jan 11–Jan 25 | 344 | two-plantings: Plant Jan 11 and again by Oct 8; both mature before Dec 21. | Oct 8 |
| Cantaloupe | Jan 25 | Feb 22–Mar 1 | 253 | fits: 85 days to maturity, 253 available after Feb 22. | Jul 26 |
| Chives | Nov 16 | Feb 15–Feb 22 | 309 | fits: 90 days to maturity, 309 available after Feb 15. | — |
| Dill | — | Dec 14–Mar 8 | 358 | two-plantings: Plant Dec 14 and again by Sep 29; both mature before Dec 7. | Sep 29 |
| Oregano | Nov 30 | Feb 15–Feb 22 | 309 | fits: 80 days to maturity, 309 available after Feb 15. | — |
| Rosemary | Nov 16 | Feb 15–Feb 22 | 295 | fits: 80 days to maturity, 295 available after Feb 15. | — |
| Sage | Dec 14 | Feb 15–Feb 22 | 309 | fits: 75 days to maturity, 309 available after Feb 15. | — |
| Thyme | Nov 30 | Feb 15–Feb 22 | 309 | fits: 90 days to maturity, 309 available after Feb 15. | — |
| Calendula | Dec 28 | Jan 25–Feb 8 | 316 | two-plantings: Plant Jan 25 and again by Oct 4; both mature before Dec 7. | Oct 4 |
| Cosmos | Jan 11 | Feb 8–Feb 22 | 281 | two-plantings: Plant Feb 8 and again by Sep 3; both mature before Nov 16. | Sep 3 |
| Lavender | Nov 16 | Feb 8–Feb 22 | 316 | fits: 90 days to maturity, 316 available after Feb 8. | — |
| Marigolds | Dec 28 | Feb 8–Feb 15 | 281 | two-plantings: Plant Feb 8 and again by Sep 13; both mature before Nov 16. | Sep 13 |
| Melons | Jan 25 | Feb 22–Mar 1 | 253 | fits: 85 days to maturity, 253 available after Feb 22. | Jul 26 |
| Mint | — | Feb 8–Feb 22 | 316 | fits: 90 days to maturity, 316 available after Feb 8. | — |
| Nasturtiums | Jan 11 | Feb 8–Feb 15 | 281 | two-plantings: Plant Feb 8 and again by Sep 8; both mature before Nov 16. | Sep 8 |
| Pole Beans | — | Feb 15–Mar 1 | 274 | fits: 65 days to maturity, 274 available after Feb 15. | Aug 29 |
| Spaghetti Squash | Jan 25 | Feb 22–Mar 1 | 260 | fits: 90 days to maturity, 260 available after Feb 22. | Jul 28 |
| Sunflowers | — | Feb 8–Feb 22 | 281 | fits: 70 days to maturity, 281 available after Feb 8. | Aug 24 |
| Tomatillos | Dec 14 | Feb 15–Feb 22 | 260 | fits: 75 days to maturity, 260 available after Feb 15. | Aug 5 |
| Watermelon | Jan 25 | Feb 15–Feb 22 | 260 | fits: 80 days to maturity, 260 available after Feb 15. | Jul 31 |
| Yellow Squash | Jan 25 | Feb 22–Mar 1 | 267 | two-plantings: Plant Feb 22 and again by Sep 8; both mature before Nov 16. | Sep 8 |
| Zinnias | Jan 11 | Feb 8–Feb 22 | 281 | two-plantings: Plant Feb 8 and again by Sep 3; both mature before Nov 16. | Sep 3 |
Month by month in Lompoc
| Month | What to do |
|---|---|
| January | Start indoors: Basil (Jan 4), Tomato (Jan 4), Bok Choy (Jan 11), Corn (Jan 11), Cosmos (Jan 11), Nasturtiums (Jan 11), +11 more. Direct sow from: Cilantro (Jan 11), Turnip (Jan 11), Carrots (Jan 18), Potatoes (Jan 25). Transplant from: Broccoli (Jan 11), Brussel Sprouts (Jan 11), Cabbage (Jan 11), Collards (Jan 11), Kale (Jan 11), Lettuce (Jan 11), +4 more. Plant: Strawberry (Jan 4). |
| February | Direct sow from: Sunflowers (Feb 8), Beans (Feb 15), Pole Beans (Feb 15). Transplant from: Bok Choy (Feb 1), Cauliflower (Feb 1), Cosmos (Feb 8), Lavender (Feb 8), Marigolds (Feb 8), Mint (Feb 8), +24 more. Last frost around February 8. |
| March | Transplant from: Basil (Mar 1). |
| April | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| May | Harvest regularly to encourage production. Monitor for pests and disease. |
| June | Midsummer: harvest beans, zucchini, cucumbers. Start brassica seeds indoors for fall. |
| July | Last sowing dates: Butternut Squash (Jul 18), Pumpkin (Jul 18), Cantaloupe (Jul 26), Celery (Jul 26), Melons (Jul 26), Spaghetti Squash (Jul 28), +2 more. |
| August | Last sowing dates: Pepper (Aug 5), Tomatillos (Aug 5), Eggplant (Aug 10), Corn (Aug 12), Sunflowers (Aug 24), Brussel Sprouts (Aug 29), +1 more. |
| September | Last sowing dates: Basil (Sep 3), Cosmos (Sep 3), Cucumber (Sep 3), Zinnias (Sep 3), Broccoli (Sep 4), Nasturtiums (Sep 8), +13 more. |
| October | Last sowing dates: Calendula (Oct 4), Cilantro (Oct 4), Collards (Oct 8), Scallions (Oct 8), Bok Choy (Oct 9), Lettuce (Oct 9), +6 more. |
| November | Start indoors: Chives (Nov 16), Lavender (Nov 16), Onion (Nov 16), Rosemary (Nov 16), Celery (Nov 30), Collards (Nov 30), +5 more. Direct sow from: Garlic (Nov 30). First frost around November 30. |
| December | Start indoors: Broccoli (Dec 14), Brussel Sprouts (Dec 14), Cabbage (Dec 14), Lettuce (Dec 14), Sage (Dec 14), Swiss Chard (Dec 14), +6 more. Direct sow from: Arugula (Dec 14), Beets (Dec 14), Dill (Dec 14), Peas (Dec 14), Radish (Dec 14), Spinach (Dec 14), +1 more. Last sowing dates: Garlic (Dec 21). |
Frequently Asked Questions
What is the last frost date for Lompoc, CA (ZIP 93436)?
The median last spring frost date for Lompoc, CA (ZIP code 93436) is around February 8. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before November 14; one in ten it runs past April 16.
What is the first fall frost date in Lompoc, CA?
The median first fall frost date for Lompoc, CA is around November 30. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around November 6 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Lompoc, CA?
The frost-free growing season in Lompoc is about 295 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Lompoc (295 frost-free days, a very long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Lompoc, CA?
Lompoc, CA is in USDA hardiness zone 10a (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Lompoc, CA?
Start tomatoes indoors Jan 4 and plant out Feb 22 in Lompoc. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Lompoc?
Two: plant Jan 11 and again by Oct 9; both mature before Dec 7.
When do I plant garlic in Lompoc?
Nov 30 to Dec 21; it overwinters and is ready the following summer.
Can I get two tomato crops in Lompoc?
Yes: plant out Feb 22 for a summer crop, and set out a second round of transplants by Jul 31 for a fall crop.
Which nearby ZIP has a longer season?
Goleta (ZIP 93117) has 307 frost-free days, 12 more than Lompoc (ZIP 93436). See Goleta ZIP 93117 frost dates
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