Frost Dates for Temecula, CA 92591
Last spring frost March 9 · First fall frost November 9 · 245 frost-free days · USDA Zone 9b
ZIP 92591 has about 42,000 people, one of 3 ZIP codes in Temecula.
Very long season: 245 frost-free days. Spring frost risk spans February 3–April 13 (69 days). Fall frost risk spans November 5–December 1 (26 days).
Frost probability for 92591
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 13 | March 9 | February 3 |
| Fall (first frost) | November 5 | November 9 | December 1 |
Dates come from NOAA 1971–2000 freeze probabilities at ELSINORE (27.7 km away); the 50% date is the median year.
Which crops fit a 245-day season in Temecula
In Temecula (245 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 | Feb 2 | Mar 23–Mar 30 | 203 | fits: 80 days to maturity, 203 available after Mar 23. | Jul 10 |
| Pepper | Jan 26 | Mar 23–Mar 30 | 203 | fits: 75 days to maturity, 203 available after Mar 23. | Jul 15 |
| Lettuce | Jan 12 | Feb 9–Feb 16 | 280 | two-plantings: Plant Feb 9 and again by Sep 18; both mature before Nov 16. | Sep 18 |
| Carrots | — | Feb 16–Feb 23 | 287 | fits: 70 days to maturity, 287 available after Feb 16. | Sep 7 |
| Cucumber | Feb 16 | Mar 23–Mar 30 | 217 | two-plantings: Plant Mar 23 and again by Aug 13; both mature before Oct 26. | Aug 13 |
| Beans | — | Mar 16–Mar 30 | 231 | two-plantings: Plant Mar 16 and again by Aug 20; both mature before Nov 2. | Aug 20 |
| Peas | — | Jan 12–Mar 23 | 308 | fits: 65 days to maturity, 308 available after Jan 12. | Aug 29 |
| Zucchini | Feb 23 | Mar 23–Mar 30 | 217 | two-plantings: Plant Mar 23 and again by Aug 18; both mature before Oct 26. | Aug 18 |
| Onion | Dec 15 | Feb 9–Feb 23 | 280 | fits: 100 days to maturity, 280 available after Feb 9. | — |
| Spinach | — | Jan 12–Mar 2 | 322 | two-plantings: Plant Jan 12 and again by Oct 7; both mature before Nov 30. | Oct 7 |
| Kale | Dec 29 | Feb 9–Feb 23 | 294 | two-plantings: Plant Feb 9 and again by Sep 22; both mature before Nov 30. | Sep 22 |
| Broccoli | Jan 12 | Feb 9–Feb 23 | 280 | fits: 80 days to maturity, 280 available after Feb 9. | Aug 14 |
| Cabbage | Jan 12 | Feb 9–Feb 23 | 294 | fits: 70 days to maturity, 294 available after Feb 9. | Sep 7 |
| Radish | — | Jan 12–Apr 6 | 308 | two-plantings: Plant Jan 12 and again by Oct 8; both mature before Nov 16. | Oct 8 |
| Beets | — | Jan 12–Apr 6 | 308 | two-plantings: Plant Jan 12 and again by Sep 8; both mature before Nov 16. | Sep 8 |
| Potatoes | — | Feb 23–Mar 2 | 266 | fits: 90 days to maturity, 266 available after Feb 23. | — |
| Garlic | — | Nov 9 | 350 | overwinter: Plant Nov 9 to Nov 30; harvest the following summer. | Nov 30 |
| Strawberry | — | Feb 2–Mar 30 | 301 | perennial: A perennial: plant Feb 2; it fruits from the following year and keeps producing for several years. | — |
| Corn | Feb 9 | Mar 16–Mar 23 | 217 | fits: 75 days to maturity, 217 available after Mar 16. | Jul 22 |
| Pumpkin | Feb 23 | Mar 23–Mar 23 | 210 | fits: 100 days to maturity, 210 available after Mar 23. | Jun 27 |
| Cauliflower | Jan 26 | Mar 2–Mar 16 | 259 | fits: 75 days to maturity, 259 available after Mar 2. | Aug 19 |
| Swiss Chard | Jan 12 | Feb 23–Feb 23 | 266 | two-plantings: Plant Feb 23 and again by Sep 8; both mature before Nov 16. | Sep 8 |
| Arugula | — | Jan 12–Apr 6 | 322 | two-plantings: Plant Jan 12 and again by Oct 7; both mature before Nov 30. | Oct 7 |
| Brussel Sprouts | Jan 12 | Feb 9–Feb 23 | 294 | fits: 100 days to maturity, 294 available after Feb 9. | Aug 8 |
| Butternut Squash | Feb 23 | Mar 23–Mar 30 | 210 | fits: 100 days to maturity, 210 available after Mar 23. | Jun 27 |
| Eggplant | Jan 19 | Mar 23–Mar 30 | 203 | fits: 70 days to maturity, 203 available after Mar 23. | Jul 20 |
| Okra | Feb 9 | Mar 16–Mar 23 | 224 | two-plantings: Plant Mar 16 and again by Aug 18; both mature before Oct 26. | Aug 18 |
| Basil | Feb 2 | Mar 30–Mar 30 | 210 | two-plantings: Plant Mar 30 and again by Aug 13; both mature before Oct 26. | Aug 13 |
| Cilantro | — | Feb 9–Mar 2 | 280 | two-plantings: Plant Feb 9 and again by Sep 13; both mature before Nov 16. | Sep 13 |
| Parsley | Dec 29 | Mar 16–Mar 23 | 245 | fits: 70 days to maturity, 245 available after Mar 16. | Aug 24 |
| Celery | Dec 29 | Mar 16–Mar 30 | 245 | fits: 120 days to maturity, 245 available after Mar 16. | Jul 5 |
| Scallions | Dec 29 | Feb 9–Feb 23 | 294 | two-plantings: Plant Feb 9 and again by Sep 17; both mature before Nov 30. | Sep 17 |
| Turnip | — | Feb 9–Feb 23 | 294 | two-plantings: Plant Feb 9 and again by Sep 27; both mature before Nov 30. | Sep 27 |
| Kohlrabi | — | Jan 26–Feb 9 | 308 | two-plantings: Plant Jan 26 and again by Sep 22; both mature before Nov 30. | Sep 22 |
| Bok Choy | Feb 9 | Mar 2–Mar 9 | 259 | two-plantings: Plant Mar 2 and again by Sep 18; both mature before Nov 16. | Sep 18 |
| Collards | Dec 29 | Feb 9–Feb 23 | 294 | two-plantings: Plant Feb 9 and again by Sep 17; both mature before Nov 30. | Sep 17 |
| Cantaloupe | Feb 23 | Mar 23–Mar 30 | 203 | fits: 85 days to maturity, 203 available after Mar 23. | Jul 5 |
| Chives | Dec 15 | Mar 16–Mar 23 | 259 | fits: 90 days to maturity, 259 available after Mar 16. | — |
| Dill | — | Jan 12–Apr 6 | 308 | two-plantings: Plant Jan 12 and again by Sep 8; both mature before Nov 16. | Sep 8 |
| Oregano | Dec 29 | Mar 16–Mar 23 | 259 | fits: 80 days to maturity, 259 available after Mar 16. | — |
| Rosemary | Dec 15 | Mar 16–Mar 23 | 245 | fits: 80 days to maturity, 245 available after Mar 16. | — |
| Sage | Jan 12 | Mar 16–Mar 23 | 259 | fits: 75 days to maturity, 259 available after Mar 16. | — |
| Thyme | Dec 29 | Mar 16–Mar 23 | 259 | fits: 90 days to maturity, 259 available after Mar 16. | — |
| Calendula | Jan 26 | Feb 23–Mar 9 | 266 | two-plantings: Plant Feb 23 and again by Sep 13; both mature before Nov 16. | Sep 13 |
| Cosmos | Feb 9 | Mar 9–Mar 23 | 231 | two-plantings: Plant Mar 9 and again by Aug 13; both mature before Oct 26. | Aug 13 |
| Lavender | Dec 15 | Mar 9–Mar 23 | 266 | fits: 90 days to maturity, 266 available after Mar 9. | — |
| Marigolds | Jan 26 | Mar 9–Mar 16 | 231 | two-plantings: Plant Mar 9 and again by Aug 23; both mature before Oct 26. | Aug 23 |
| Melons | Feb 23 | Mar 23–Mar 30 | 203 | fits: 85 days to maturity, 203 available after Mar 23. | Jul 5 |
| Mint | — | Mar 9–Mar 23 | 266 | fits: 90 days to maturity, 266 available after Mar 9. | — |
| Nasturtiums | Feb 9 | Mar 9–Mar 16 | 231 | two-plantings: Plant Mar 9 and again by Aug 18; both mature before Oct 26. | Aug 18 |
| Pole Beans | — | Mar 16–Mar 30 | 224 | fits: 65 days to maturity, 224 available after Mar 16. | Aug 8 |
| Spaghetti Squash | Feb 23 | Mar 23–Mar 30 | 210 | fits: 90 days to maturity, 210 available after Mar 23. | Jul 7 |
| Sunflowers | — | Mar 9–Mar 23 | 231 | fits: 70 days to maturity, 231 available after Mar 9. | Aug 3 |
| Tomatillos | Jan 12 | Mar 16–Mar 23 | 210 | fits: 75 days to maturity, 210 available after Mar 16. | Jul 15 |
| Watermelon | Feb 23 | Mar 16–Mar 23 | 210 | fits: 80 days to maturity, 210 available after Mar 16. | Jul 10 |
| Yellow Squash | Feb 23 | Mar 23–Mar 30 | 217 | two-plantings: Plant Mar 23 and again by Aug 18; both mature before Oct 26. | Aug 18 |
| Zinnias | Feb 9 | Mar 9–Mar 23 | 231 | two-plantings: Plant Mar 9 and again by Aug 13; both mature before Oct 26. | Aug 13 |
Month by month in Temecula
| Month | What to do |
|---|---|
| January | Start indoors: Broccoli (Jan 12), Brussel Sprouts (Jan 12), Cabbage (Jan 12), Lettuce (Jan 12), Sage (Jan 12), Swiss Chard (Jan 12), +6 more. Direct sow from: Arugula (Jan 12), Beets (Jan 12), Dill (Jan 12), Peas (Jan 12), Radish (Jan 12), Spinach (Jan 12), +1 more. |
| February | Start indoors: Basil (Feb 2), Tomato (Feb 2), Bok Choy (Feb 9), Corn (Feb 9), Cosmos (Feb 9), Nasturtiums (Feb 9), +11 more. Direct sow from: Cilantro (Feb 9), Turnip (Feb 9), Carrots (Feb 16), Potatoes (Feb 23). Transplant from: Broccoli (Feb 9), Brussel Sprouts (Feb 9), Cabbage (Feb 9), Collards (Feb 9), Kale (Feb 9), Lettuce (Feb 9), +4 more. Plant: Strawberry (Feb 2). |
| March | Direct sow from: Sunflowers (Mar 9), Beans (Mar 16), Pole Beans (Mar 16). Transplant from: Bok Choy (Mar 2), Cauliflower (Mar 2), Cosmos (Mar 9), Lavender (Mar 9), Marigolds (Mar 9), Mint (Mar 9), +25 more. Last frost around March 9. |
| April | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| May | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| June | Last sowing dates: Butternut Squash (Jun 27), Pumpkin (Jun 27). |
| July | Last sowing dates: Cantaloupe (Jul 5), Celery (Jul 5), Melons (Jul 5), Spaghetti Squash (Jul 7), Tomato (Jul 10), Watermelon (Jul 10), +4 more. |
| August | Last sowing dates: Sunflowers (Aug 3), Brussel Sprouts (Aug 8), Pole Beans (Aug 8), Basil (Aug 13), Cosmos (Aug 13), Cucumber (Aug 13), +11 more. |
| September | Last sowing dates: Cabbage (Sep 7), Carrots (Sep 7), Beets (Sep 8), Dill (Sep 8), Swiss Chard (Sep 8), Calendula (Sep 13), +8 more. |
| October | Last sowing dates: Arugula (Oct 7), Spinach (Oct 7), Radish (Oct 8). |
| November | Direct sow from: Garlic (Nov 9). First frost around November 9. Last sowing dates: Garlic (Nov 30). |
| December | Start indoors: Chives (Dec 15), Lavender (Dec 15), Onion (Dec 15), Rosemary (Dec 15), Celery (Dec 29), Collards (Dec 29), +5 more. |
Frequently Asked Questions
What is the last frost date for Temecula, CA (ZIP 92591)?
The median last spring frost date for Temecula, CA (ZIP code 92591) is around March 9. 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 February 3; one in ten it runs past April 13.
What is the first fall frost date in Temecula, CA?
The median first fall frost date for Temecula, CA is around November 9. 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 5 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Temecula, CA?
The frost-free growing season in Temecula is about 245 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 Temecula (245 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 Temecula, CA?
Temecula, CA is in USDA hardiness zone 9b (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 Temecula, CA?
Start tomatoes indoors Feb 2 and plant out Mar 23 in Temecula. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Temecula?
Two: plant Feb 9 and again by Sep 18; both mature before Nov 16.
When do I plant garlic in Temecula?
Nov 9 to Nov 30; it overwinters and is ready the following summer.
Can I get two tomato crops in Temecula?
Yes: plant out Mar 23 for a summer crop, and set out a second round of transplants by Jul 10 for a fall crop.
Which nearby ZIP has a longer season?
Winchester (ZIP 92596) has 255 frost-free days, 10 more than Temecula (ZIP 92591). See Winchester ZIP 92596 frost dates
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