Frost Dates for Dixon, CA 95620
Last spring frost February 26 · First fall frost November 28 · 275 frost-free days · USDA Zone 9b
ZIP 95620 has about 22,200 people.
Very long season: 275 frost-free days. Spring frost risk spans January 16–April 8 (82 days). Fall frost risk spans November 6–December 15 (39 days).
Frost probability for 95620
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 8 | February 26 | January 16 |
| Fall (first frost) | November 6 | November 28 | December 15 |
Dates come from NOAA 1971–2000 freeze probabilities at DAVIS 2 WSW EXP FARM (14.4 km away); the 50% date is the median year.
Which crops fit a 275-day season in Dixon
In Dixon (275 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 22 | Mar 12–Mar 19 | 233 | fits: 80 days to maturity, 233 available after Mar 12. | Jul 29 |
| Pepper | Jan 15 | Mar 12–Mar 19 | 233 | fits: 75 days to maturity, 233 available after Mar 12. | Aug 3 |
| Lettuce | Jan 1 | Jan 29–Feb 5 | 310 | two-plantings: Plant Jan 29 and again by Oct 7; both mature before Dec 5. | Oct 7 |
| Carrots | — | Feb 5–Feb 12 | 317 | fits: 70 days to maturity, 317 available after Feb 5. | Sep 26 |
| Cucumber | Feb 5 | Mar 12–Mar 19 | 247 | two-plantings: Plant Mar 12 and again by Sep 1; both mature before Nov 14. | Sep 1 |
| Beans | — | Mar 5–Mar 19 | 261 | two-plantings: Plant Mar 5 and again by Sep 8; both mature before Nov 21. | Sep 8 |
| Peas | — | Jan 1–Mar 12 | 338 | fits: 65 days to maturity, 338 available after Jan 1. | Sep 17 |
| Zucchini | Feb 12 | Mar 12–Mar 19 | 247 | two-plantings: Plant Mar 12 and again by Sep 6; both mature before Nov 14. | Sep 6 |
| Onion | Dec 4 | Jan 29–Feb 12 | 310 | fits: 100 days to maturity, 310 available after Jan 29. | — |
| Spinach | — | Jan 1–Feb 19 | 352 | two-plantings: Plant Jan 1 and again by Oct 26; both mature before Dec 19. | Oct 26 |
| Kale | Dec 18 | Jan 29–Feb 12 | 324 | two-plantings: Plant Jan 29 and again by Oct 11; both mature before Dec 19. | Oct 11 |
| Broccoli | Jan 1 | Jan 29–Feb 12 | 310 | fits: 80 days to maturity, 310 available after Jan 29. | Sep 2 |
| Cabbage | Jan 1 | Jan 29–Feb 12 | 324 | fits: 70 days to maturity, 324 available after Jan 29. | Sep 26 |
| Radish | — | Jan 1–Mar 26 | 338 | two-plantings: Plant Jan 1 and again by Oct 27; both mature before Dec 5. | Oct 27 |
| Beets | — | Jan 1–Mar 26 | 338 | two-plantings: Plant Jan 1 and again by Sep 27; both mature before Dec 5. | Sep 27 |
| Potatoes | — | Feb 12–Feb 19 | 296 | fits: 90 days to maturity, 296 available after Feb 12. | — |
| Garlic | — | Nov 28 | 380 | overwinter: Plant Nov 28 to Dec 19; harvest the following summer. | Dec 19 |
| Strawberry | — | Jan 22–Mar 19 | 331 | perennial: A perennial: plant Jan 22; it fruits from the following year and keeps producing for several years. | — |
| Corn | Jan 29 | Mar 5–Mar 12 | 247 | fits: 75 days to maturity, 247 available after Mar 5. | Aug 10 |
| Pumpkin | Feb 12 | Mar 12–Mar 12 | 240 | fits: 100 days to maturity, 240 available after Mar 12. | Jul 16 |
| Cauliflower | Jan 15 | Feb 19–Mar 5 | 289 | fits: 75 days to maturity, 289 available after Feb 19. | Sep 7 |
| Swiss Chard | Jan 1 | Feb 12–Feb 12 | 296 | two-plantings: Plant Feb 12 and again by Sep 27; both mature before Dec 5. | Sep 27 |
| Arugula | — | Jan 1–Mar 26 | 352 | two-plantings: Plant Jan 1 and again by Oct 26; both mature before Dec 19. | Oct 26 |
| Brussel Sprouts | Jan 1 | Jan 29–Feb 12 | 324 | fits: 100 days to maturity, 324 available after Jan 29. | Aug 27 |
| Butternut Squash | Feb 12 | Mar 12–Mar 19 | 240 | fits: 100 days to maturity, 240 available after Mar 12. | Jul 16 |
| Eggplant | Jan 8 | Mar 12–Mar 19 | 233 | fits: 70 days to maturity, 233 available after Mar 12. | Aug 8 |
| Okra | Jan 29 | Mar 5–Mar 12 | 254 | two-plantings: Plant Mar 5 and again by Sep 6; both mature before Nov 14. | Sep 6 |
| Basil | Jan 22 | Mar 19–Mar 19 | 240 | two-plantings: Plant Mar 19 and again by Sep 1; both mature before Nov 14. | Sep 1 |
| Cilantro | — | Jan 29–Feb 19 | 310 | two-plantings: Plant Jan 29 and again by Oct 2; both mature before Dec 5. | Oct 2 |
| Parsley | Dec 18 | Mar 5–Mar 12 | 275 | fits: 70 days to maturity, 275 available after Mar 5. | Sep 12 |
| Celery | Dec 18 | Mar 5–Mar 19 | 275 | fits: 120 days to maturity, 275 available after Mar 5. | Jul 24 |
| Scallions | Dec 18 | Jan 29–Feb 12 | 324 | two-plantings: Plant Jan 29 and again by Oct 6; both mature before Dec 19. | Oct 6 |
| Turnip | — | Jan 29–Feb 12 | 324 | two-plantings: Plant Jan 29 and again by Oct 16; both mature before Dec 19. | Oct 16 |
| Kohlrabi | — | Jan 15–Jan 29 | 338 | two-plantings: Plant Jan 15 and again by Oct 11; both mature before Dec 19. | Oct 11 |
| Bok Choy | Jan 29 | Feb 19–Feb 26 | 289 | two-plantings: Plant Feb 19 and again by Oct 7; both mature before Dec 5. | Oct 7 |
| Collards | Dec 18 | Jan 29–Feb 12 | 324 | two-plantings: Plant Jan 29 and again by Oct 6; both mature before Dec 19. | Oct 6 |
| Cantaloupe | Feb 12 | Mar 12–Mar 19 | 233 | fits: 85 days to maturity, 233 available after Mar 12. | Jul 24 |
| Chives | Dec 4 | Mar 5–Mar 12 | 289 | fits: 90 days to maturity, 289 available after Mar 5. | — |
| Dill | — | Jan 1–Mar 26 | 338 | two-plantings: Plant Jan 1 and again by Sep 27; both mature before Dec 5. | Sep 27 |
| Oregano | Dec 18 | Mar 5–Mar 12 | 289 | fits: 80 days to maturity, 289 available after Mar 5. | — |
| Rosemary | Dec 4 | Mar 5–Mar 12 | 275 | fits: 80 days to maturity, 275 available after Mar 5. | — |
| Sage | Jan 1 | Mar 5–Mar 12 | 289 | fits: 75 days to maturity, 289 available after Mar 5. | — |
| Thyme | Dec 18 | Mar 5–Mar 12 | 289 | fits: 90 days to maturity, 289 available after Mar 5. | — |
| Calendula | Jan 15 | Feb 12–Feb 26 | 296 | two-plantings: Plant Feb 12 and again by Oct 2; both mature before Dec 5. | Oct 2 |
| Cosmos | Jan 29 | Feb 26–Mar 12 | 261 | two-plantings: Plant Feb 26 and again by Sep 1; both mature before Nov 14. | Sep 1 |
| Lavender | Dec 4 | Feb 26–Mar 12 | 296 | fits: 90 days to maturity, 296 available after Feb 26. | — |
| Marigolds | Jan 15 | Feb 26–Mar 5 | 261 | two-plantings: Plant Feb 26 and again by Sep 11; both mature before Nov 14. | Sep 11 |
| Melons | Feb 12 | Mar 12–Mar 19 | 233 | fits: 85 days to maturity, 233 available after Mar 12. | Jul 24 |
| Mint | — | Feb 26–Mar 12 | 296 | fits: 90 days to maturity, 296 available after Feb 26. | — |
| Nasturtiums | Jan 29 | Feb 26–Mar 5 | 261 | two-plantings: Plant Feb 26 and again by Sep 6; both mature before Nov 14. | Sep 6 |
| Pole Beans | — | Mar 5–Mar 19 | 254 | fits: 65 days to maturity, 254 available after Mar 5. | Aug 27 |
| Spaghetti Squash | Feb 12 | Mar 12–Mar 19 | 240 | fits: 90 days to maturity, 240 available after Mar 12. | Jul 26 |
| Sunflowers | — | Feb 26–Mar 12 | 261 | fits: 70 days to maturity, 261 available after Feb 26. | Aug 22 |
| Tomatillos | Jan 1 | Mar 5–Mar 12 | 240 | fits: 75 days to maturity, 240 available after Mar 5. | Aug 3 |
| Watermelon | Feb 12 | Mar 5–Mar 12 | 240 | fits: 80 days to maturity, 240 available after Mar 5. | Jul 29 |
| Yellow Squash | Feb 12 | Mar 12–Mar 19 | 247 | two-plantings: Plant Mar 12 and again by Sep 6; both mature before Nov 14. | Sep 6 |
| Zinnias | Jan 29 | Feb 26–Mar 12 | 261 | two-plantings: Plant Feb 26 and again by Sep 1; both mature before Nov 14. | Sep 1 |
Month by month in Dixon
| Month | What to do |
|---|---|
| January | Start indoors: Broccoli (Jan 1), Brussel Sprouts (Jan 1), Cabbage (Jan 1), Lettuce (Jan 1), Sage (Jan 1), Swiss Chard (Jan 1), +14 more. Direct sow from: Arugula (Jan 1), Beets (Jan 1), Dill (Jan 1), Peas (Jan 1), Radish (Jan 1), Spinach (Jan 1), +3 more. Transplant from: Broccoli (Jan 29), Brussel Sprouts (Jan 29), Cabbage (Jan 29), Collards (Jan 29), Kale (Jan 29), Lettuce (Jan 29), +2 more. Plant: Strawberry (Jan 22). |
| February | Start indoors: Cucumber (Feb 5), Butternut Squash (Feb 12), Cantaloupe (Feb 12), Melons (Feb 12), Pumpkin (Feb 12), Spaghetti Squash (Feb 12), +3 more. Direct sow from: Carrots (Feb 5), Potatoes (Feb 12), Sunflowers (Feb 26). Transplant from: Calendula (Feb 12), Swiss Chard (Feb 12), Bok Choy (Feb 19), Cauliflower (Feb 19), Cosmos (Feb 26), Lavender (Feb 26), +4 more. Last frost around February 26. |
| March | Direct sow from: Beans (Mar 5), Pole Beans (Mar 5). Transplant from: Celery (Mar 5), Chives (Mar 5), Corn (Mar 5), Okra (Mar 5), Oregano (Mar 5), Parsley (Mar 5), +17 more. |
| 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 16), Pumpkin (Jul 16), Cantaloupe (Jul 24), Celery (Jul 24), Melons (Jul 24), Spaghetti Squash (Jul 26), +2 more. |
| August | Last sowing dates: Pepper (Aug 3), Tomatillos (Aug 3), Eggplant (Aug 8), Corn (Aug 10), Sunflowers (Aug 22), Brussel Sprouts (Aug 27), +1 more. |
| September | Last sowing dates: Basil (Sep 1), Cosmos (Sep 1), Cucumber (Sep 1), Zinnias (Sep 1), Broccoli (Sep 2), Nasturtiums (Sep 6), +13 more. |
| October | Last sowing dates: Calendula (Oct 2), Cilantro (Oct 2), Collards (Oct 6), Scallions (Oct 6), Bok Choy (Oct 7), Lettuce (Oct 7), +6 more. |
| November | Direct sow from: Garlic (Nov 28). First frost around November 28. |
| December | Start indoors: Chives (Dec 4), Lavender (Dec 4), Onion (Dec 4), Rosemary (Dec 4), Celery (Dec 18), Collards (Dec 18), +5 more. Last sowing dates: Garlic (Dec 19). |
Frequently Asked Questions
What is the last frost date for Dixon, CA (ZIP 95620)?
The median last spring frost date for Dixon, CA (ZIP code 95620) is around February 26. 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 16; one in ten it runs past April 8.
What is the first fall frost date in Dixon, CA?
The median first fall frost date for Dixon, CA is around November 28. 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 6 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Dixon, CA?
The frost-free growing season in Dixon is about 275 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 Dixon (275 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 Dixon, CA?
Dixon, 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 Dixon, CA?
Start tomatoes indoors Jan 22 and plant out Mar 12 in Dixon. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Dixon?
Two: plant Jan 29 and again by Oct 7; both mature before Dec 5.
When do I plant garlic in Dixon?
Nov 28 to Dec 19; it overwinters and is ready the following summer.
Can I get two tomato crops in Dixon?
Yes: plant out Mar 12 for a summer crop, and set out a second round of transplants by Jul 29 for a fall crop.
Which nearby ZIP has a longer season?
Vacaville (ZIP 95687) has 300 frost-free days, 25 more than Dixon (ZIP 95620). See Vacaville ZIP 95687 frost dates
Nearby and related
- Frost dates for Vacaville, CA 95687 (10 mi)
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