Frost Dates for Riverbank, CA 95367
Last spring frost February 13 · First fall frost December 1 · 291 frost-free days · USDA Zone 9b
ZIP 95367 has about 25,600 people.
Very long season: 291 frost-free days. Spring frost risk spans January 15–March 14 (58 days). Fall frost risk spans November 14–December 17 (33 days).
Frost probability for 95367
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | March 14 | February 13 | January 15 |
| Fall (first frost) | November 14 | December 1 | December 17 |
Dates come from NOAA 1971–2000 freeze probabilities at STOCKTON AP (30.3 km away); the 50% date is the median year.
Which crops fit a 291-day season in Riverbank
In Riverbank (291 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 9 | Feb 27–Mar 6 | 249 | fits: 80 days to maturity, 249 available after Feb 27. | Aug 1 |
| Pepper | Jan 2 | Feb 27–Mar 6 | 249 | fits: 75 days to maturity, 249 available after Feb 27. | Aug 6 |
| Lettuce | Dec 19 | Jan 16–Jan 23 | 326 | two-plantings: Plant Jan 16 and again by Oct 10; both mature before Dec 8. | Oct 10 |
| Carrots | — | Jan 23–Jan 30 | 333 | fits: 70 days to maturity, 333 available after Jan 23. | Sep 29 |
| Cucumber | Jan 23 | Feb 27–Mar 6 | 263 | two-plantings: Plant Feb 27 and again by Sep 4; both mature before Nov 17. | Sep 4 |
| Beans | — | Feb 20–Mar 6 | 277 | two-plantings: Plant Feb 20 and again by Sep 11; both mature before Nov 24. | Sep 11 |
| Peas | — | Dec 19–Feb 27 | 354 | fits: 65 days to maturity, 354 available after Dec 19. | Sep 20 |
| Zucchini | Jan 30 | Feb 27–Mar 6 | 263 | two-plantings: Plant Feb 27 and again by Sep 9; both mature before Nov 17. | Sep 9 |
| Onion | Nov 21 | Jan 16–Jan 30 | 326 | fits: 100 days to maturity, 326 available after Jan 16. | — |
| Spinach | — | Dec 19–Feb 6 | 368 | two-plantings: Plant Dec 19 and again by Oct 29; both mature before Dec 22. | Oct 29 |
| Kale | Dec 5 | Jan 16–Jan 30 | 340 | two-plantings: Plant Jan 16 and again by Oct 14; both mature before Dec 22. | Oct 14 |
| Broccoli | Dec 19 | Jan 16–Jan 30 | 326 | fits: 80 days to maturity, 326 available after Jan 16. | Sep 5 |
| Cabbage | Dec 19 | Jan 16–Jan 30 | 340 | fits: 70 days to maturity, 340 available after Jan 16. | Sep 29 |
| Radish | — | Dec 19–Mar 13 | 354 | two-plantings: Plant Dec 19 and again by Oct 30; both mature before Dec 8. | Oct 30 |
| Beets | — | Dec 19–Mar 13 | 354 | two-plantings: Plant Dec 19 and again by Sep 30; both mature before Dec 8. | Sep 30 |
| Potatoes | — | Jan 30–Feb 6 | 312 | fits: 90 days to maturity, 312 available after Jan 30. | — |
| Garlic | — | Dec 1 | 396 | overwinter: Plant Dec 1 to Dec 22; harvest the following summer. | Dec 22 |
| Strawberry | — | Jan 9–Mar 6 | 347 | perennial: A perennial: plant Jan 9; it fruits from the following year and keeps producing for several years. | — |
| Corn | Jan 16 | Feb 20–Feb 27 | 263 | fits: 75 days to maturity, 263 available after Feb 20. | Aug 13 |
| Pumpkin | Jan 30 | Feb 27–Feb 27 | 256 | fits: 100 days to maturity, 256 available after Feb 27. | Jul 19 |
| Cauliflower | Jan 2 | Feb 6–Feb 20 | 305 | fits: 75 days to maturity, 305 available after Feb 6. | Sep 10 |
| Swiss Chard | Dec 19 | Jan 30–Jan 30 | 312 | two-plantings: Plant Jan 30 and again by Sep 30; both mature before Dec 8. | Sep 30 |
| Arugula | — | Dec 19–Mar 13 | 368 | two-plantings: Plant Dec 19 and again by Oct 29; both mature before Dec 22. | Oct 29 |
| Brussel Sprouts | Dec 19 | Jan 16–Jan 30 | 340 | fits: 100 days to maturity, 340 available after Jan 16. | Aug 30 |
| Butternut Squash | Jan 30 | Feb 27–Mar 6 | 256 | fits: 100 days to maturity, 256 available after Feb 27. | Jul 19 |
| Eggplant | Dec 26 | Feb 27–Mar 6 | 249 | fits: 70 days to maturity, 249 available after Feb 27. | Aug 11 |
| Okra | Jan 16 | Feb 20–Feb 27 | 270 | two-plantings: Plant Feb 20 and again by Sep 9; both mature before Nov 17. | Sep 9 |
| Basil | Jan 9 | Mar 6–Mar 6 | 256 | two-plantings: Plant Mar 6 and again by Sep 4; both mature before Nov 17. | Sep 4 |
| Cilantro | — | Jan 16–Feb 6 | 326 | two-plantings: Plant Jan 16 and again by Oct 5; both mature before Dec 8. | Oct 5 |
| Parsley | Dec 5 | Feb 20–Feb 27 | 291 | fits: 70 days to maturity, 291 available after Feb 20. | Sep 15 |
| Celery | Dec 5 | Feb 20–Mar 6 | 291 | fits: 120 days to maturity, 291 available after Feb 20. | Jul 27 |
| Scallions | Dec 5 | Jan 16–Jan 30 | 340 | two-plantings: Plant Jan 16 and again by Oct 9; both mature before Dec 22. | Oct 9 |
| Turnip | — | Jan 16–Jan 30 | 340 | two-plantings: Plant Jan 16 and again by Oct 19; both mature before Dec 22. | Oct 19 |
| Kohlrabi | — | Jan 2–Jan 16 | 354 | two-plantings: Plant Jan 2 and again by Oct 14; both mature before Dec 22. | Oct 14 |
| Bok Choy | Jan 16 | Feb 6–Feb 13 | 305 | two-plantings: Plant Feb 6 and again by Oct 10; both mature before Dec 8. | Oct 10 |
| Collards | Dec 5 | Jan 16–Jan 30 | 340 | two-plantings: Plant Jan 16 and again by Oct 9; both mature before Dec 22. | Oct 9 |
| Cantaloupe | Jan 30 | Feb 27–Mar 6 | 249 | fits: 85 days to maturity, 249 available after Feb 27. | Jul 27 |
| Chives | Nov 21 | Feb 20–Feb 27 | 305 | fits: 90 days to maturity, 305 available after Feb 20. | — |
| Dill | — | Dec 19–Mar 13 | 354 | two-plantings: Plant Dec 19 and again by Sep 30; both mature before Dec 8. | Sep 30 |
| Oregano | Dec 5 | Feb 20–Feb 27 | 305 | fits: 80 days to maturity, 305 available after Feb 20. | — |
| Rosemary | Nov 21 | Feb 20–Feb 27 | 291 | fits: 80 days to maturity, 291 available after Feb 20. | — |
| Sage | Dec 19 | Feb 20–Feb 27 | 305 | fits: 75 days to maturity, 305 available after Feb 20. | — |
| Thyme | Dec 5 | Feb 20–Feb 27 | 305 | fits: 90 days to maturity, 305 available after Feb 20. | — |
| Calendula | Jan 2 | Jan 30–Feb 13 | 312 | two-plantings: Plant Jan 30 and again by Oct 5; both mature before Dec 8. | Oct 5 |
| Cosmos | Jan 16 | Feb 13–Feb 27 | 277 | two-plantings: Plant Feb 13 and again by Sep 4; both mature before Nov 17. | Sep 4 |
| Lavender | Nov 21 | Feb 13–Feb 27 | 312 | fits: 90 days to maturity, 312 available after Feb 13. | — |
| Marigolds | Jan 2 | Feb 13–Feb 20 | 277 | two-plantings: Plant Feb 13 and again by Sep 14; both mature before Nov 17. | Sep 14 |
| Melons | Jan 30 | Feb 27–Mar 6 | 249 | fits: 85 days to maturity, 249 available after Feb 27. | Jul 27 |
| Mint | — | Feb 13–Feb 27 | 312 | fits: 90 days to maturity, 312 available after Feb 13. | — |
| Nasturtiums | Jan 16 | Feb 13–Feb 20 | 277 | two-plantings: Plant Feb 13 and again by Sep 9; both mature before Nov 17. | Sep 9 |
| Pole Beans | — | Feb 20–Mar 6 | 270 | fits: 65 days to maturity, 270 available after Feb 20. | Aug 30 |
| Spaghetti Squash | Jan 30 | Feb 27–Mar 6 | 256 | fits: 90 days to maturity, 256 available after Feb 27. | Jul 29 |
| Sunflowers | — | Feb 13–Feb 27 | 277 | fits: 70 days to maturity, 277 available after Feb 13. | Aug 25 |
| Tomatillos | Dec 19 | Feb 20–Feb 27 | 256 | fits: 75 days to maturity, 256 available after Feb 20. | Aug 6 |
| Watermelon | Jan 30 | Feb 20–Feb 27 | 256 | fits: 80 days to maturity, 256 available after Feb 20. | Aug 1 |
| Yellow Squash | Jan 30 | Feb 27–Mar 6 | 263 | two-plantings: Plant Feb 27 and again by Sep 9; both mature before Nov 17. | Sep 9 |
| Zinnias | Jan 16 | Feb 13–Feb 27 | 277 | two-plantings: Plant Feb 13 and again by Sep 4; both mature before Nov 17. | Sep 4 |
Month by month in Riverbank
| Month | What to do |
|---|---|
| January | Start indoors: Calendula (Jan 2), Cauliflower (Jan 2), Marigolds (Jan 2), Pepper (Jan 2), Basil (Jan 9), Tomato (Jan 9), +15 more. Direct sow from: Kohlrabi (Jan 2), Cilantro (Jan 16), Turnip (Jan 16), Carrots (Jan 23), Potatoes (Jan 30). Transplant from: Broccoli (Jan 16), Brussel Sprouts (Jan 16), Cabbage (Jan 16), Collards (Jan 16), Kale (Jan 16), Lettuce (Jan 16), +4 more. Plant: Strawberry (Jan 9). |
| February | Direct sow from: Sunflowers (Feb 13), Beans (Feb 20), Pole Beans (Feb 20). Transplant from: Bok Choy (Feb 6), Cauliflower (Feb 6), Cosmos (Feb 13), Lavender (Feb 13), Marigolds (Feb 13), Mint (Feb 13), +24 more. Last frost around February 13. |
| March | Transplant from: Basil (Mar 6). |
| 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 19), Pumpkin (Jul 19), Cantaloupe (Jul 27), Celery (Jul 27), Melons (Jul 27), Spaghetti Squash (Jul 29). |
| August | Last sowing dates: Tomato (Aug 1), Watermelon (Aug 1), Pepper (Aug 6), Tomatillos (Aug 6), Eggplant (Aug 11), Corn (Aug 13), +3 more. |
| September | Last sowing dates: Basil (Sep 4), Cosmos (Sep 4), Cucumber (Sep 4), Zinnias (Sep 4), Broccoli (Sep 5), Nasturtiums (Sep 9), +13 more. |
| October | Last sowing dates: Calendula (Oct 5), Cilantro (Oct 5), Collards (Oct 9), Scallions (Oct 9), Bok Choy (Oct 10), Lettuce (Oct 10), +6 more. |
| November | Start indoors: Chives (Nov 21), Lavender (Nov 21), Onion (Nov 21), Rosemary (Nov 21). |
| December | Start indoors: Celery (Dec 5), Collards (Dec 5), Kale (Dec 5), Oregano (Dec 5), Parsley (Dec 5), Scallions (Dec 5), +9 more. Direct sow from: Garlic (Dec 1), Arugula (Dec 19), Beets (Dec 19), Dill (Dec 19), Peas (Dec 19), Radish (Dec 19), +1 more. First frost around December 1. Last sowing dates: Garlic (Dec 22). |
Frequently Asked Questions
What is the last frost date for Riverbank, CA (ZIP 95367)?
The median last spring frost date for Riverbank, CA (ZIP code 95367) is around February 13. 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 15; one in ten it runs past March 14.
What is the first fall frost date in Riverbank, CA?
The median first fall frost date for Riverbank, CA is around December 1. 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 14 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Riverbank, CA?
The frost-free growing season in Riverbank is about 291 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 Riverbank (291 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 Riverbank, CA?
Riverbank, 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 Riverbank, CA?
Start tomatoes indoors Jan 9 and plant out Feb 27 in Riverbank. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Riverbank?
Two: plant Jan 16 and again by Oct 10; both mature before Dec 8.
When do I plant garlic in Riverbank?
Dec 1 to Dec 22; it overwinters and is ready the following summer.
Can I get two tomato crops in Riverbank?
Yes: plant out Feb 27 for a summer crop, and set out a second round of transplants by Aug 1 for a fall crop.
Which nearby ZIP has a longer season?
Oakdale (ZIP 95361) has 308 frost-free days, 17 more than Riverbank (ZIP 95367). See Oakdale ZIP 95361 frost dates
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