Frost Dates for Redwood City, CA 94065
Redwood City has 4 ZIP codes. The Redwood City, CA frost page lists all of them with their dates.
Last spring frost January 28 · First fall frost December 11 · 317 frost-free days · USDA Zone 10a
ZIP 94065 has about 11,700 people, one of 4 ZIP codes in Redwood City.
Very long season: 317 frost-free days. Spring frost risk spans December 20–February 28 (70 days). Fall frost risk spans November 18–January 15 (58 days).
Frost probability for 94065
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | February 28 | January 28 | December 20 |
| Fall (first frost) | November 18 | December 11 | January 15 |
Dates come from NOAA 1971–2000 freeze probabilities at REDWOOD CITY (6.5 km away); the 50% date is the median year.
Which crops fit a 317-day season in Redwood City
In Redwood City (317 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 24 | Feb 11–Feb 18 | 275 | fits: 80 days to maturity, 275 available after Feb 11. | Aug 11 |
| Pepper | Dec 17 | Feb 11–Feb 18 | 275 | fits: 75 days to maturity, 275 available after Feb 11. | Aug 16 |
| Lettuce | Dec 3 | Dec 31–Jan 7 | 352 | two-plantings: Plant Dec 31 and again by Oct 20; both mature before Dec 18. | Oct 20 |
| Carrots | — | Jan 7–Jan 14 | 359 | fits: 70 days to maturity, 359 available after Jan 7. | Oct 9 |
| Cucumber | Jan 7 | Feb 11–Feb 18 | 289 | two-plantings: Plant Feb 11 and again by Sep 14; both mature before Nov 27. | Sep 14 |
| Beans | — | Feb 4–Feb 18 | 303 | two-plantings: Plant Feb 4 and again by Sep 21; both mature before Dec 4. | Sep 21 |
| Peas | — | Dec 3–Feb 11 | 380 | fits: 65 days to maturity, 380 available after Dec 3. | Sep 30 |
| Zucchini | Jan 14 | Feb 11–Feb 18 | 289 | two-plantings: Plant Feb 11 and again by Sep 19; both mature before Nov 27. | Sep 19 |
| Onion | Nov 5 | Dec 31–Jan 14 | 352 | fits: 100 days to maturity, 352 available after Dec 31. | — |
| Spinach | — | Dec 3–Jan 21 | 394 | two-plantings: Plant Dec 3 and again by Nov 8; both mature before Jan 1. | Nov 8 |
| Kale | Nov 19 | Dec 31–Jan 14 | 366 | two-plantings: Plant Dec 31 and again by Oct 24; both mature before Jan 1. | Oct 24 |
| Broccoli | Dec 3 | Dec 31–Jan 14 | 352 | fits: 80 days to maturity, 352 available after Dec 31. | Sep 15 |
| Cabbage | Dec 3 | Dec 31–Jan 14 | 366 | fits: 70 days to maturity, 366 available after Dec 31. | Oct 9 |
| Radish | — | Dec 3–Feb 25 | 380 | two-plantings: Plant Dec 3 and again by Nov 9; both mature before Dec 18. | Nov 9 |
| Beets | — | Dec 3–Feb 25 | 380 | two-plantings: Plant Dec 3 and again by Oct 10; both mature before Dec 18. | Oct 10 |
| Potatoes | — | Jan 14–Jan 21 | 338 | fits: 90 days to maturity, 338 available after Jan 14. | — |
| Garlic | — | Dec 11 | 422 | overwinter: Plant Dec 11 to Jan 1; harvest the following summer. | Jan 1 |
| Strawberry | — | Dec 24–Feb 18 | 373 | perennial: A perennial: plant Dec 24; it fruits from the following year and keeps producing for several years. | — |
| Corn | Dec 31 | Feb 4–Feb 11 | 289 | fits: 75 days to maturity, 289 available after Feb 4. | Aug 23 |
| Pumpkin | Jan 14 | Feb 11–Feb 11 | 282 | fits: 100 days to maturity, 282 available after Feb 11. | Jul 29 |
| Cauliflower | Dec 17 | Jan 21–Feb 4 | 331 | fits: 75 days to maturity, 331 available after Jan 21. | Sep 20 |
| Swiss Chard | Dec 3 | Jan 14–Jan 14 | 338 | two-plantings: Plant Jan 14 and again by Oct 10; both mature before Dec 18. | Oct 10 |
| Arugula | — | Dec 3–Feb 25 | 394 | two-plantings: Plant Dec 3 and again by Nov 8; both mature before Jan 1. | Nov 8 |
| Brussel Sprouts | Dec 3 | Dec 31–Jan 14 | 366 | fits: 100 days to maturity, 366 available after Dec 31. | Sep 9 |
| Butternut Squash | Jan 14 | Feb 11–Feb 18 | 282 | fits: 100 days to maturity, 282 available after Feb 11. | Jul 29 |
| Eggplant | Dec 10 | Feb 11–Feb 18 | 275 | fits: 70 days to maturity, 275 available after Feb 11. | Aug 21 |
| Okra | Dec 31 | Feb 4–Feb 11 | 296 | two-plantings: Plant Feb 4 and again by Sep 19; both mature before Nov 27. | Sep 19 |
| Basil | Dec 24 | Feb 18–Feb 18 | 282 | two-plantings: Plant Feb 18 and again by Sep 14; both mature before Nov 27. | Sep 14 |
| Cilantro | — | Dec 31–Jan 21 | 352 | two-plantings: Plant Dec 31 and again by Oct 15; both mature before Dec 18. | Oct 15 |
| Parsley | Nov 19 | Feb 4–Feb 11 | 317 | fits: 70 days to maturity, 317 available after Feb 4. | Sep 25 |
| Celery | Nov 19 | Feb 4–Feb 18 | 317 | fits: 120 days to maturity, 317 available after Feb 4. | Aug 6 |
| Scallions | Nov 19 | Dec 31–Jan 14 | 366 | two-plantings: Plant Dec 31 and again by Oct 19; both mature before Jan 1. | Oct 19 |
| Turnip | — | Dec 31–Jan 14 | 366 | two-plantings: Plant Dec 31 and again by Oct 29; both mature before Jan 1. | Oct 29 |
| Kohlrabi | — | Dec 17–Dec 31 | 380 | two-plantings: Plant Dec 17 and again by Oct 24; both mature before Jan 1. | Oct 24 |
| Bok Choy | Dec 31 | Jan 21–Jan 28 | 331 | two-plantings: Plant Jan 21 and again by Oct 20; both mature before Dec 18. | Oct 20 |
| Collards | Nov 19 | Dec 31–Jan 14 | 366 | two-plantings: Plant Dec 31 and again by Oct 19; both mature before Jan 1. | Oct 19 |
| Cantaloupe | Jan 14 | Feb 11–Feb 18 | 275 | fits: 85 days to maturity, 275 available after Feb 11. | Aug 6 |
| Chives | Nov 5 | Feb 4–Feb 11 | 331 | fits: 90 days to maturity, 331 available after Feb 4. | — |
| Dill | — | Dec 3–Feb 25 | 380 | two-plantings: Plant Dec 3 and again by Oct 10; both mature before Dec 18. | Oct 10 |
| Oregano | Nov 19 | Feb 4–Feb 11 | 331 | fits: 80 days to maturity, 331 available after Feb 4. | — |
| Rosemary | Nov 5 | Feb 4–Feb 11 | 317 | fits: 80 days to maturity, 317 available after Feb 4. | — |
| Sage | Dec 3 | Feb 4–Feb 11 | 331 | fits: 75 days to maturity, 331 available after Feb 4. | — |
| Thyme | Nov 19 | Feb 4–Feb 11 | 331 | fits: 90 days to maturity, 331 available after Feb 4. | — |
| Calendula | Dec 17 | Jan 14–Jan 28 | 338 | two-plantings: Plant Jan 14 and again by Oct 15; both mature before Dec 18. | Oct 15 |
| Cosmos | Dec 31 | Jan 28–Feb 11 | 303 | two-plantings: Plant Jan 28 and again by Sep 14; both mature before Nov 27. | Sep 14 |
| Lavender | Nov 5 | Jan 28–Feb 11 | 338 | fits: 90 days to maturity, 338 available after Jan 28. | — |
| Marigolds | Dec 17 | Jan 28–Feb 4 | 303 | two-plantings: Plant Jan 28 and again by Sep 24; both mature before Nov 27. | Sep 24 |
| Melons | Jan 14 | Feb 11–Feb 18 | 275 | fits: 85 days to maturity, 275 available after Feb 11. | Aug 6 |
| Mint | — | Jan 28–Feb 11 | 338 | fits: 90 days to maturity, 338 available after Jan 28. | — |
| Nasturtiums | Dec 31 | Jan 28–Feb 4 | 303 | two-plantings: Plant Jan 28 and again by Sep 19; both mature before Nov 27. | Sep 19 |
| Pole Beans | — | Feb 4–Feb 18 | 296 | fits: 65 days to maturity, 296 available after Feb 4. | Sep 9 |
| Spaghetti Squash | Jan 14 | Feb 11–Feb 18 | 282 | fits: 90 days to maturity, 282 available after Feb 11. | Aug 8 |
| Sunflowers | — | Jan 28–Feb 11 | 303 | fits: 70 days to maturity, 303 available after Jan 28. | Sep 4 |
| Tomatillos | Dec 3 | Feb 4–Feb 11 | 282 | fits: 75 days to maturity, 282 available after Feb 4. | Aug 16 |
| Watermelon | Jan 14 | Feb 4–Feb 11 | 282 | fits: 80 days to maturity, 282 available after Feb 4. | Aug 11 |
| Yellow Squash | Jan 14 | Feb 11–Feb 18 | 289 | two-plantings: Plant Feb 11 and again by Sep 19; both mature before Nov 27. | Sep 19 |
| Zinnias | Dec 31 | Jan 28–Feb 11 | 303 | two-plantings: Plant Jan 28 and again by Sep 14; both mature before Nov 27. | Sep 14 |
Month by month in Redwood City
| Month | What to do |
|---|---|
| January | Start indoors: Cucumber (Jan 7), Butternut Squash (Jan 14), Cantaloupe (Jan 14), Melons (Jan 14), Pumpkin (Jan 14), Spaghetti Squash (Jan 14), +3 more. Direct sow from: Carrots (Jan 7), Potatoes (Jan 14), Sunflowers (Jan 28). Transplant from: Calendula (Jan 14), Swiss Chard (Jan 14), Bok Choy (Jan 21), Cauliflower (Jan 21), Cosmos (Jan 28), Lavender (Jan 28), +4 more. Last frost around January 28. Last sowing dates: Garlic (Jan 1). |
| February | Direct sow from: Beans (Feb 4), Pole Beans (Feb 4). Transplant from: Celery (Feb 4), Chives (Feb 4), Corn (Feb 4), Okra (Feb 4), Oregano (Feb 4), Parsley (Feb 4), +17 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 | Last sowing dates: Butternut Squash (Jul 29), Pumpkin (Jul 29). |
| August | Last sowing dates: Cantaloupe (Aug 6), Celery (Aug 6), Melons (Aug 6), Spaghetti Squash (Aug 8), Tomato (Aug 11), Watermelon (Aug 11), +4 more. |
| September | Last sowing dates: Sunflowers (Sep 4), Brussel Sprouts (Sep 9), Pole Beans (Sep 9), Basil (Sep 14), Cosmos (Sep 14), Cucumber (Sep 14), +11 more. |
| October | Last sowing dates: Cabbage (Oct 9), Carrots (Oct 9), Beets (Oct 10), Dill (Oct 10), Swiss Chard (Oct 10), Calendula (Oct 15), +8 more. |
| November | Start indoors: Chives (Nov 5), Lavender (Nov 5), Onion (Nov 5), Rosemary (Nov 5), Celery (Nov 19), Collards (Nov 19), +5 more. Last sowing dates: Arugula (Nov 8), Spinach (Nov 8), Radish (Nov 9). |
| December | Start indoors: Broccoli (Dec 3), Brussel Sprouts (Dec 3), Cabbage (Dec 3), Lettuce (Dec 3), Sage (Dec 3), Swiss Chard (Dec 3), +14 more. Direct sow from: Arugula (Dec 3), Beets (Dec 3), Dill (Dec 3), Peas (Dec 3), Radish (Dec 3), Spinach (Dec 3), +4 more. Transplant from: Broccoli (Dec 31), Brussel Sprouts (Dec 31), Cabbage (Dec 31), Collards (Dec 31), Kale (Dec 31), Lettuce (Dec 31), +2 more. Plant: Strawberry (Dec 24). First frost around December 11. |
Frequently Asked Questions
What is the last frost date for Redwood City, CA (ZIP 94065)?
The median last spring frost date for Redwood City, CA (ZIP code 94065) is around January 28. 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 December 20; one in ten it runs past February 28.
What is the first fall frost date in Redwood City, CA?
The median first fall frost date for Redwood City, CA is around December 11. 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 Redwood City, CA?
The frost-free growing season in Redwood City is about 317 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 Redwood City (317 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 Redwood City, CA?
Redwood City, 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 Redwood City, CA?
Start tomatoes indoors Dec 24 and plant out Feb 11 in Redwood City. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Redwood City?
Two: plant Dec 31 and again by Oct 20; both mature before Dec 18.
When do I plant garlic in Redwood City?
Dec 11 to Jan 1; it overwinters and is ready the following summer.
Can I get two tomato crops in Redwood City?
Yes: plant out Feb 11 for a summer crop, and set out a second round of transplants by Aug 11 for a fall crop.
Which nearby ZIP has a longer season?
San Mateo (ZIP 94403) has 365 frost-free days, 48 more than Redwood City (ZIP 94065). See San Mateo ZIP 94403 frost dates
Nearby and related
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