Frost Dates for Chino, CA 91710
Last spring frost January 19 · First fall frost December 21 · 336 frost-free days · USDA Zone 10a
ZIP 91710 has about 78,800 people, the largest of 2 ZIP codes in Chino.
Very long season: 336 frost-free days.
Frost probability for 91710
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | March 5 | January 19 | — |
| Fall (first frost) | November 18 | December 21 | — |
Dates come from NOAA 1971–2000 freeze probabilities at POMONA/FAIRPLEX (11.5 km away); the 50% date is the median year.
Frost dates by ZIP code in Chino, CA
| ZIP | Last spring frost (50%) | First fall frost (50%) | Zone |
|---|---|---|---|
| 91710 | January 19 | December 21 | 10a |
| 91708 | January 19 | December 21 | 9b |
Which crops fit a 336-day season in Chino
In Chino (336 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 | Dec 15 | Feb 2–Feb 9 | 294 | fits: 80 days to maturity, 294 available after Feb 2. | Aug 21 |
| Pepper | Dec 8 | Feb 2–Feb 9 | 294 | fits: 75 days to maturity, 294 available after Feb 2. | Aug 26 |
| Lettuce | Nov 24 | Dec 22–Dec 29 | 371 | two-plantings: Plant Dec 22 and again by Oct 30; both mature before Dec 28. | Oct 30 |
| Carrots | — | Dec 29–Jan 5 | 378 | fits: 70 days to maturity, 378 available after Dec 29. | Oct 19 |
| Cucumber | Dec 29 | Feb 2–Feb 9 | 308 | two-plantings: Plant Feb 2 and again by Sep 24; both mature before Dec 7. | Sep 24 |
| Beans | — | Jan 26–Feb 9 | 322 | two-plantings: Plant Jan 26 and again by Oct 1; both mature before Dec 14. | Oct 1 |
| Peas | — | Nov 24–Feb 2 | 399 | fits: 65 days to maturity, 399 available after Nov 24. | Oct 10 |
| Zucchini | Jan 5 | Feb 2–Feb 9 | 308 | two-plantings: Plant Feb 2 and again by Sep 29; both mature before Dec 7. | Sep 29 |
| Onion | Oct 27 | Dec 22–Jan 5 | 371 | fits: 100 days to maturity, 371 available after Dec 22. | — |
| Spinach | — | Nov 24–Jan 12 | 413 | two-plantings: Plant Nov 24 and again by Nov 18; both mature before Jan 11. | Nov 18 |
| Kale | Nov 10 | Dec 22–Jan 5 | 385 | two-plantings: Plant Dec 22 and again by Nov 3; both mature before Jan 11. | Nov 3 |
| Broccoli | Nov 24 | Dec 22–Jan 5 | 371 | fits: 80 days to maturity, 371 available after Dec 22. | Sep 25 |
| Cabbage | Nov 24 | Dec 22–Jan 5 | 385 | fits: 70 days to maturity, 385 available after Dec 22. | Oct 19 |
| Radish | — | Nov 24–Feb 16 | 399 | two-plantings: Plant Nov 24 and again by Nov 19; both mature before Dec 28. | Nov 19 |
| Beets | — | Nov 24–Feb 16 | 399 | two-plantings: Plant Nov 24 and again by Oct 20; both mature before Dec 28. | Oct 20 |
| Potatoes | — | Jan 5–Jan 12 | 357 | fits: 90 days to maturity, 357 available after Jan 5. | — |
| Garlic | — | Dec 21 | 441 | overwinter: Plant Dec 21 to Jan 11; harvest the following summer. | Jan 11 |
| Strawberry | — | Dec 15–Feb 9 | 392 | perennial: A perennial: plant Dec 15; it fruits from the following year and keeps producing for several years. | — |
| Corn | Dec 22 | Jan 26–Feb 2 | 308 | fits: 75 days to maturity, 308 available after Jan 26. | Sep 2 |
| Pumpkin | Jan 5 | Feb 2–Feb 2 | 301 | fits: 100 days to maturity, 301 available after Feb 2. | Aug 8 |
| Cauliflower | Dec 8 | Jan 12–Jan 26 | 350 | fits: 75 days to maturity, 350 available after Jan 12. | Sep 30 |
| Swiss Chard | Nov 24 | Jan 5–Jan 5 | 357 | two-plantings: Plant Jan 5 and again by Oct 20; both mature before Dec 28. | Oct 20 |
| Arugula | — | Nov 24–Feb 16 | 413 | two-plantings: Plant Nov 24 and again by Nov 18; both mature before Jan 11. | Nov 18 |
| Brussel Sprouts | Nov 24 | Dec 22–Jan 5 | 385 | fits: 100 days to maturity, 385 available after Dec 22. | Sep 19 |
| Butternut Squash | Jan 5 | Feb 2–Feb 9 | 301 | fits: 100 days to maturity, 301 available after Feb 2. | Aug 8 |
| Eggplant | Dec 1 | Feb 2–Feb 9 | 294 | fits: 70 days to maturity, 294 available after Feb 2. | Aug 31 |
| Okra | Dec 22 | Jan 26–Feb 2 | 315 | two-plantings: Plant Jan 26 and again by Sep 29; both mature before Dec 7. | Sep 29 |
| Basil | Dec 15 | Feb 9–Feb 9 | 301 | two-plantings: Plant Feb 9 and again by Sep 24; both mature before Dec 7. | Sep 24 |
| Cilantro | — | Dec 22–Jan 12 | 371 | two-plantings: Plant Dec 22 and again by Oct 25; both mature before Dec 28. | Oct 25 |
| Parsley | Nov 10 | Jan 26–Feb 2 | 336 | fits: 70 days to maturity, 336 available after Jan 26. | Oct 5 |
| Celery | Nov 10 | Jan 26–Feb 9 | 336 | fits: 120 days to maturity, 336 available after Jan 26. | Aug 16 |
| Scallions | Nov 10 | Dec 22–Jan 5 | 385 | two-plantings: Plant Dec 22 and again by Oct 29; both mature before Jan 11. | Oct 29 |
| Turnip | — | Dec 22–Jan 5 | 385 | two-plantings: Plant Dec 22 and again by Nov 8; both mature before Jan 11. | Nov 8 |
| Kohlrabi | — | Dec 8–Dec 22 | 399 | two-plantings: Plant Dec 8 and again by Nov 3; both mature before Jan 11. | Nov 3 |
| Bok Choy | Dec 22 | Jan 12–Jan 19 | 350 | two-plantings: Plant Jan 12 and again by Oct 30; both mature before Dec 28. | Oct 30 |
| Collards | Nov 10 | Dec 22–Jan 5 | 385 | two-plantings: Plant Dec 22 and again by Oct 29; both mature before Jan 11. | Oct 29 |
| Cantaloupe | Jan 5 | Feb 2–Feb 9 | 294 | fits: 85 days to maturity, 294 available after Feb 2. | Aug 16 |
| Chives | Oct 27 | Jan 26–Feb 2 | 350 | fits: 90 days to maturity, 350 available after Jan 26. | — |
| Dill | — | Nov 24–Feb 16 | 399 | two-plantings: Plant Nov 24 and again by Oct 20; both mature before Dec 28. | Oct 20 |
| Oregano | Nov 10 | Jan 26–Feb 2 | 350 | fits: 80 days to maturity, 350 available after Jan 26. | — |
| Rosemary | Oct 27 | Jan 26–Feb 2 | 336 | fits: 80 days to maturity, 336 available after Jan 26. | — |
| Sage | Nov 24 | Jan 26–Feb 2 | 350 | fits: 75 days to maturity, 350 available after Jan 26. | — |
| Thyme | Nov 10 | Jan 26–Feb 2 | 350 | fits: 90 days to maturity, 350 available after Jan 26. | — |
| Calendula | Dec 8 | Jan 5–Jan 19 | 357 | two-plantings: Plant Jan 5 and again by Oct 25; both mature before Dec 28. | Oct 25 |
| Cosmos | Dec 22 | Jan 19–Feb 2 | 322 | two-plantings: Plant Jan 19 and again by Sep 24; both mature before Dec 7. | Sep 24 |
| Lavender | Oct 27 | Jan 19–Feb 2 | 357 | fits: 90 days to maturity, 357 available after Jan 19. | — |
| Marigolds | Dec 8 | Jan 19–Jan 26 | 322 | two-plantings: Plant Jan 19 and again by Oct 4; both mature before Dec 7. | Oct 4 |
| Melons | Jan 5 | Feb 2–Feb 9 | 294 | fits: 85 days to maturity, 294 available after Feb 2. | Aug 16 |
| Mint | — | Jan 19–Feb 2 | 357 | fits: 90 days to maturity, 357 available after Jan 19. | — |
| Nasturtiums | Dec 22 | Jan 19–Jan 26 | 322 | two-plantings: Plant Jan 19 and again by Sep 29; both mature before Dec 7. | Sep 29 |
| Pole Beans | — | Jan 26–Feb 9 | 315 | fits: 65 days to maturity, 315 available after Jan 26. | Sep 19 |
| Spaghetti Squash | Jan 5 | Feb 2–Feb 9 | 301 | fits: 90 days to maturity, 301 available after Feb 2. | Aug 18 |
| Sunflowers | — | Jan 19–Feb 2 | 322 | fits: 70 days to maturity, 322 available after Jan 19. | Sep 14 |
| Tomatillos | Nov 24 | Jan 26–Feb 2 | 301 | fits: 75 days to maturity, 301 available after Jan 26. | Aug 26 |
| Watermelon | Jan 5 | Jan 26–Feb 2 | 301 | fits: 80 days to maturity, 301 available after Jan 26. | Aug 21 |
| Yellow Squash | Jan 5 | Feb 2–Feb 9 | 308 | two-plantings: Plant Feb 2 and again by Sep 29; both mature before Dec 7. | Sep 29 |
| Zinnias | Dec 22 | Jan 19–Feb 2 | 322 | two-plantings: Plant Jan 19 and again by Sep 24; both mature before Dec 7. | Sep 24 |
Month by month in Chino
| Month | What to do |
|---|---|
| January | Start indoors: Butternut Squash (Jan 5), Cantaloupe (Jan 5), Melons (Jan 5), Pumpkin (Jan 5), Spaghetti Squash (Jan 5), Watermelon (Jan 5), +2 more. Direct sow from: Potatoes (Jan 5), Sunflowers (Jan 19), Beans (Jan 26), Pole Beans (Jan 26). Transplant from: Calendula (Jan 5), Swiss Chard (Jan 5), Bok Choy (Jan 12), Cauliflower (Jan 12), Cosmos (Jan 19), Lavender (Jan 19), +15 more. Last frost around January 19. Last sowing dates: Garlic (Jan 11). |
| February | Transplant from: Butternut Squash (Feb 2), Cantaloupe (Feb 2), Cucumber (Feb 2), Eggplant (Feb 2), Melons (Feb 2), Pepper (Feb 2), +6 more. |
| March | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| April | Harvest regularly to encourage production. Monitor for pests and disease. |
| May | Midsummer: harvest beans, zucchini, cucumbers. Start brassica seeds indoors for fall. |
| June | Direct sow carrots and beets for fall harvest. Start fall broccoli and kale indoors. |
| July | Direct sow carrots and beets for fall harvest. Start fall broccoli and kale indoors. |
| August | Last sowing dates: Butternut Squash (Aug 8), Pumpkin (Aug 8), Cantaloupe (Aug 16), Celery (Aug 16), Melons (Aug 16), Spaghetti Squash (Aug 18), +5 more. |
| September | Last sowing dates: Corn (Sep 2), Sunflowers (Sep 14), Brussel Sprouts (Sep 19), Pole Beans (Sep 19), Basil (Sep 24), Cosmos (Sep 24), +8 more. |
| October | Start indoors: Chives (Oct 27), Lavender (Oct 27), Onion (Oct 27), Rosemary (Oct 27). Last sowing dates: Beans (Oct 1), Marigolds (Oct 4), Parsley (Oct 5), Peas (Oct 10), Cabbage (Oct 19), Carrots (Oct 19), +9 more. |
| November | Start indoors: Celery (Nov 10), Collards (Nov 10), Kale (Nov 10), Oregano (Nov 10), Parsley (Nov 10), Scallions (Nov 10), +8 more. Direct sow from: Arugula (Nov 24), Beets (Nov 24), Dill (Nov 24), Peas (Nov 24), Radish (Nov 24), Spinach (Nov 24). Last sowing dates: Kale (Nov 3), Kohlrabi (Nov 3), Turnip (Nov 8), Arugula (Nov 18), Spinach (Nov 18), Radish (Nov 19). |
| December | Start indoors: Eggplant (Dec 1), Calendula (Dec 8), Cauliflower (Dec 8), Marigolds (Dec 8), Pepper (Dec 8), Basil (Dec 15), +8 more. Direct sow from: Kohlrabi (Dec 8), Garlic (Dec 21), Cilantro (Dec 22), Turnip (Dec 22), Carrots (Dec 29). Transplant from: Broccoli (Dec 22), Brussel Sprouts (Dec 22), Cabbage (Dec 22), Collards (Dec 22), Kale (Dec 22), Lettuce (Dec 22), +2 more. Plant: Strawberry (Dec 15). First frost around December 21. |
Frequently Asked Questions
What is the last frost date for Chino, CA (ZIP 91710)?
The median last spring frost date for Chino, CA (ZIP code 91710) is around January 19. 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.
What is the first fall frost date in Chino, CA?
The median first fall frost date for Chino, CA is around December 21. 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 18 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Chino, CA?
The frost-free growing season in Chino is about 336 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 Chino (336 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 Chino, CA?
Chino, 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 Chino, CA?
Start tomatoes indoors Dec 15 and plant out Feb 2 in Chino. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Chino?
Two: plant Dec 22 and again by Oct 30; both mature before Dec 28.
When do I plant garlic in Chino?
Dec 21 to Jan 11; it overwinters and is ready the following summer.
Can I get two tomato crops in Chino?
Yes: plant out Feb 2 for a summer crop, and set out a second round of transplants by Aug 21 for a fall crop.
Which nearby ZIP has a longer season?
Chino Hills (ZIP 91709) has 360 frost-free days, 24 more than Chino (ZIP 91710). See Chino Hills ZIP 91709 frost dates
Nearby and related
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