Frost Dates for Winton, CA 95388
Last spring frost March 1 · First fall frost November 24 · 268 frost-free days · USDA Zone 9b
ZIP 95388 has about 13,300 people.
Very long season: 268 frost-free days. Spring frost risk spans January 28–April 4 (66 days). Fall frost risk spans November 4–December 4 (30 days).
Frost probability for 95388
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 4 | March 1 | January 28 |
| Fall (first frost) | November 4 | November 24 | December 4 |
Dates come from NOAA 1971–2000 freeze probabilities at NEWMAN (40.3 km away); the 50% date is the median year.
Which crops fit a 268-day season in Winton
In Winton (268 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 25 | Mar 15–Mar 22 | 226 | fits: 80 days to maturity, 226 available after Mar 15. | Jul 25 |
| Pepper | Jan 18 | Mar 15–Mar 22 | 226 | fits: 75 days to maturity, 226 available after Mar 15. | Jul 30 |
| Lettuce | Jan 4 | Feb 1–Feb 8 | 303 | two-plantings: Plant Feb 1 and again by Oct 3; both mature before Dec 1. | Oct 3 |
| Carrots | — | Feb 8–Feb 15 | 310 | fits: 70 days to maturity, 310 available after Feb 8. | Sep 22 |
| Cucumber | Feb 8 | Mar 15–Mar 22 | 240 | two-plantings: Plant Mar 15 and again by Aug 28; both mature before Nov 10. | Aug 28 |
| Beans | — | Mar 8–Mar 22 | 254 | two-plantings: Plant Mar 8 and again by Sep 4; both mature before Nov 17. | Sep 4 |
| Peas | — | Jan 4–Mar 15 | 331 | fits: 65 days to maturity, 331 available after Jan 4. | Sep 13 |
| Zucchini | Feb 15 | Mar 15–Mar 22 | 240 | two-plantings: Plant Mar 15 and again by Sep 2; both mature before Nov 10. | Sep 2 |
| Onion | Dec 7 | Feb 1–Feb 15 | 303 | fits: 100 days to maturity, 303 available after Feb 1. | — |
| Spinach | — | Jan 4–Feb 22 | 345 | two-plantings: Plant Jan 4 and again by Oct 22; both mature before Dec 15. | Oct 22 |
| Kale | Dec 21 | Feb 1–Feb 15 | 317 | two-plantings: Plant Feb 1 and again by Oct 7; both mature before Dec 15. | Oct 7 |
| Broccoli | Jan 4 | Feb 1–Feb 15 | 303 | fits: 80 days to maturity, 303 available after Feb 1. | Aug 29 |
| Cabbage | Jan 4 | Feb 1–Feb 15 | 317 | fits: 70 days to maturity, 317 available after Feb 1. | Sep 22 |
| Radish | — | Jan 4–Mar 29 | 331 | two-plantings: Plant Jan 4 and again by Oct 23; both mature before Dec 1. | Oct 23 |
| Beets | — | Jan 4–Mar 29 | 331 | two-plantings: Plant Jan 4 and again by Sep 23; both mature before Dec 1. | Sep 23 |
| Potatoes | — | Feb 15–Feb 22 | 289 | fits: 90 days to maturity, 289 available after Feb 15. | — |
| Garlic | — | Nov 24 | 373 | overwinter: Plant Nov 24 to Dec 15; harvest the following summer. | Dec 15 |
| Strawberry | — | Jan 25–Mar 22 | 324 | perennial: A perennial: plant Jan 25; it fruits from the following year and keeps producing for several years. | — |
| Corn | Feb 1 | Mar 8–Mar 15 | 240 | fits: 75 days to maturity, 240 available after Mar 8. | Aug 6 |
| Pumpkin | Feb 15 | Mar 15–Mar 15 | 233 | fits: 100 days to maturity, 233 available after Mar 15. | Jul 12 |
| Cauliflower | Jan 18 | Feb 22–Mar 8 | 282 | fits: 75 days to maturity, 282 available after Feb 22. | Sep 3 |
| Swiss Chard | Jan 4 | Feb 15–Feb 15 | 289 | two-plantings: Plant Feb 15 and again by Sep 23; both mature before Dec 1. | Sep 23 |
| Arugula | — | Jan 4–Mar 29 | 345 | two-plantings: Plant Jan 4 and again by Oct 22; both mature before Dec 15. | Oct 22 |
| Brussel Sprouts | Jan 4 | Feb 1–Feb 15 | 317 | fits: 100 days to maturity, 317 available after Feb 1. | Aug 23 |
| Butternut Squash | Feb 15 | Mar 15–Mar 22 | 233 | fits: 100 days to maturity, 233 available after Mar 15. | Jul 12 |
| Eggplant | Jan 11 | Mar 15–Mar 22 | 226 | fits: 70 days to maturity, 226 available after Mar 15. | Aug 4 |
| Okra | Feb 1 | Mar 8–Mar 15 | 247 | two-plantings: Plant Mar 8 and again by Sep 2; both mature before Nov 10. | Sep 2 |
| Basil | Jan 25 | Mar 22–Mar 22 | 233 | two-plantings: Plant Mar 22 and again by Aug 28; both mature before Nov 10. | Aug 28 |
| Cilantro | — | Feb 1–Feb 22 | 303 | two-plantings: Plant Feb 1 and again by Sep 28; both mature before Dec 1. | Sep 28 |
| Parsley | Dec 21 | Mar 8–Mar 15 | 268 | fits: 70 days to maturity, 268 available after Mar 8. | Sep 8 |
| Celery | Dec 21 | Mar 8–Mar 22 | 268 | fits: 120 days to maturity, 268 available after Mar 8. | Jul 20 |
| Scallions | Dec 21 | Feb 1–Feb 15 | 317 | two-plantings: Plant Feb 1 and again by Oct 2; both mature before Dec 15. | Oct 2 |
| Turnip | — | Feb 1–Feb 15 | 317 | two-plantings: Plant Feb 1 and again by Oct 12; both mature before Dec 15. | Oct 12 |
| Kohlrabi | — | Jan 18–Feb 1 | 331 | two-plantings: Plant Jan 18 and again by Oct 7; both mature before Dec 15. | Oct 7 |
| Bok Choy | Feb 1 | Feb 22–Mar 1 | 282 | two-plantings: Plant Feb 22 and again by Oct 3; both mature before Dec 1. | Oct 3 |
| Collards | Dec 21 | Feb 1–Feb 15 | 317 | two-plantings: Plant Feb 1 and again by Oct 2; both mature before Dec 15. | Oct 2 |
| Cantaloupe | Feb 15 | Mar 15–Mar 22 | 226 | fits: 85 days to maturity, 226 available after Mar 15. | Jul 20 |
| Chives | Dec 7 | Mar 8–Mar 15 | 282 | fits: 90 days to maturity, 282 available after Mar 8. | — |
| Dill | — | Jan 4–Mar 29 | 331 | two-plantings: Plant Jan 4 and again by Sep 23; both mature before Dec 1. | Sep 23 |
| Oregano | Dec 21 | Mar 8–Mar 15 | 282 | fits: 80 days to maturity, 282 available after Mar 8. | — |
| Rosemary | Dec 7 | Mar 8–Mar 15 | 268 | fits: 80 days to maturity, 268 available after Mar 8. | — |
| Sage | Jan 4 | Mar 8–Mar 15 | 282 | fits: 75 days to maturity, 282 available after Mar 8. | — |
| Thyme | Dec 21 | Mar 8–Mar 15 | 282 | fits: 90 days to maturity, 282 available after Mar 8. | — |
| Calendula | Jan 18 | Feb 15–Mar 1 | 289 | two-plantings: Plant Feb 15 and again by Sep 28; both mature before Dec 1. | Sep 28 |
| Cosmos | Feb 1 | Mar 1–Mar 15 | 254 | two-plantings: Plant Mar 1 and again by Aug 28; both mature before Nov 10. | Aug 28 |
| Lavender | Dec 7 | Mar 1–Mar 15 | 289 | fits: 90 days to maturity, 289 available after Mar 1. | — |
| Marigolds | Jan 18 | Mar 1–Mar 8 | 254 | two-plantings: Plant Mar 1 and again by Sep 7; both mature before Nov 10. | Sep 7 |
| Melons | Feb 15 | Mar 15–Mar 22 | 226 | fits: 85 days to maturity, 226 available after Mar 15. | Jul 20 |
| Mint | — | Mar 1–Mar 15 | 289 | fits: 90 days to maturity, 289 available after Mar 1. | — |
| Nasturtiums | Feb 1 | Mar 1–Mar 8 | 254 | two-plantings: Plant Mar 1 and again by Sep 2; both mature before Nov 10. | Sep 2 |
| Pole Beans | — | Mar 8–Mar 22 | 247 | fits: 65 days to maturity, 247 available after Mar 8. | Aug 23 |
| Spaghetti Squash | Feb 15 | Mar 15–Mar 22 | 233 | fits: 90 days to maturity, 233 available after Mar 15. | Jul 22 |
| Sunflowers | — | Mar 1–Mar 15 | 254 | fits: 70 days to maturity, 254 available after Mar 1. | Aug 18 |
| Tomatillos | Jan 4 | Mar 8–Mar 15 | 233 | fits: 75 days to maturity, 233 available after Mar 8. | Jul 30 |
| Watermelon | Feb 15 | Mar 8–Mar 15 | 233 | fits: 80 days to maturity, 233 available after Mar 8. | Jul 25 |
| Yellow Squash | Feb 15 | Mar 15–Mar 22 | 240 | two-plantings: Plant Mar 15 and again by Sep 2; both mature before Nov 10. | Sep 2 |
| Zinnias | Feb 1 | Mar 1–Mar 15 | 254 | two-plantings: Plant Mar 1 and again by Aug 28; both mature before Nov 10. | Aug 28 |
Month by month in Winton
| Month | What to do |
|---|---|
| January | Start indoors: Broccoli (Jan 4), Brussel Sprouts (Jan 4), Cabbage (Jan 4), Lettuce (Jan 4), Sage (Jan 4), Swiss Chard (Jan 4), +8 more. Direct sow from: Arugula (Jan 4), Beets (Jan 4), Dill (Jan 4), Peas (Jan 4), Radish (Jan 4), Spinach (Jan 4), +1 more. Plant: Strawberry (Jan 25). |
| February | Start indoors: Bok Choy (Feb 1), Corn (Feb 1), Cosmos (Feb 1), Nasturtiums (Feb 1), Okra (Feb 1), Zinnias (Feb 1), +9 more. Direct sow from: Cilantro (Feb 1), Turnip (Feb 1), Carrots (Feb 8), Potatoes (Feb 15). Transplant from: Broccoli (Feb 1), Brussel Sprouts (Feb 1), Cabbage (Feb 1), Collards (Feb 1), Kale (Feb 1), Lettuce (Feb 1), +6 more. |
| March | Direct sow from: Sunflowers (Mar 1), Beans (Mar 8), Pole Beans (Mar 8). Transplant from: Cosmos (Mar 1), Lavender (Mar 1), Marigolds (Mar 1), Mint (Mar 1), Nasturtiums (Mar 1), Zinnias (Mar 1), +23 more. Last frost around March 1. |
| 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 | Harvest regularly to encourage production. Monitor for pests and disease. |
| July | Last sowing dates: Butternut Squash (Jul 12), Pumpkin (Jul 12), Cantaloupe (Jul 20), Celery (Jul 20), Melons (Jul 20), Spaghetti Squash (Jul 22), +4 more. |
| August | Last sowing dates: Eggplant (Aug 4), Corn (Aug 6), Sunflowers (Aug 18), Brussel Sprouts (Aug 23), Pole Beans (Aug 23), Basil (Aug 28), +4 more. |
| September | Last sowing dates: Nasturtiums (Sep 2), Okra (Sep 2), Yellow Squash (Sep 2), Zucchini (Sep 2), Cauliflower (Sep 3), Beans (Sep 4), +10 more. |
| October | Last sowing dates: Collards (Oct 2), Scallions (Oct 2), Bok Choy (Oct 3), Lettuce (Oct 3), Kale (Oct 7), Kohlrabi (Oct 7), +4 more. |
| November | Direct sow from: Garlic (Nov 24). First frost around November 24. |
| December | Start indoors: Chives (Dec 7), Lavender (Dec 7), Onion (Dec 7), Rosemary (Dec 7), Celery (Dec 21), Collards (Dec 21), +5 more. Last sowing dates: Garlic (Dec 15). |
Frequently Asked Questions
What is the last frost date for Winton, CA (ZIP 95388)?
The median last spring frost date for Winton, CA (ZIP code 95388) is around March 1. 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 January 28; one in ten it runs past April 4.
What is the first fall frost date in Winton, CA?
The median first fall frost date for Winton, CA is around November 24. 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 4 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Winton, CA?
The frost-free growing season in Winton is about 268 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 Winton (268 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 Winton, CA?
Winton, 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 Winton, CA?
Start tomatoes indoors Jan 25 and plant out Mar 15 in Winton. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Winton?
Two: plant Feb 1 and again by Oct 3; both mature before Dec 1.
When do I plant garlic in Winton?
Nov 24 to Dec 15; it overwinters and is ready the following summer.
Can I get two tomato crops in Winton?
Yes: plant out Mar 15 for a summer crop, and set out a second round of transplants by Jul 25 for a fall crop.
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