Dixon, CA planting zone & frost dates
Dixon is in USDA hardiness zone 9b. The last spring frost usually comes around February 10 and the first fall frost around December 1, for a growing season of about 295 days.
Planting calendar for Dixon
Dates are counted from the average last spring frost (February 10) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.
| Crop | When |
|---|---|
| Tomatoes | Start seeds indoors: Dec 16 – Dec 30 Transplant outdoors: Feb 17 – Feb 24 |
| Peppers | Start seeds indoors: Dec 2 – Dec 16 Transplant outdoors: Feb 24 – Mar 3 |
| Eggplant | Start seeds indoors: Dec 2 – Dec 16 Transplant outdoors: Feb 24 – Mar 3 |
| Broccoli | Start seeds indoors: Dec 2 – Dec 16 Transplant outdoors: Jan 13 – Jan 27 |
| Cabbage | Start seeds indoors: Dec 2 – Dec 16 Transplant outdoors: Jan 13 – Jan 27 |
| Onions (sets) | Plant outdoors: Jan 13 – Jan 27 |
| Peas | Sow outdoors: Dec 30 – Jan 13 |
| Spinach | Sow outdoors: Dec 30 – Jan 13 |
| Lettuce | Sow outdoors: Jan 13 – Jan 27 |
| Carrots | Sow outdoors: Jan 13 – Jan 27 |
| Potatoes | Plant outdoors: Jan 13 – Jan 27 |
| Beans | Sow outdoors: Feb 17 – Feb 24 |
| Sweet corn | Sow outdoors: Feb 17 – Feb 24 |
| Cucumbers | Sow outdoors: Feb 17 – Feb 24 |
| Squash & zucchini | Sow outdoors: Feb 17 – Feb 24 |
| Basil | Start seeds indoors: Dec 30 – Jan 13 Transplant outdoors: Feb 17 – Feb 24 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Oct 6 (8 weeks before the average first fall frost on Dec 1).
Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Dec 31 | Feb 10 | Mar 11 |
| First 32°F frost in fall is before | Dec 27 | Dec 1 | Nov 13 |
How to read it: in spring there is a 10% chance of a frost after March 11, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 13. A hard freeze (28°F) usually ends around January 6.
Hardiness zone by ZIP code in Dixon
- 95620 zone 9b
Nearby cities
- Davis zone 9b, last frost Feb 10
- Vacaville zone 9b, last frost Feb 18
- Woodland zone 9b, last frost Feb 7
- Fairfield zone 9b, last frost Jan 15
- Suisun zone 9b, last frost Jan 15
- West Sacramento zone 9b, last frost Feb 2
- Sacramento zone 9b, last frost Jan 12
- Parkway zone 9b, last frost Feb 2
Questions
What growing zone is Dixon, CA?
Dixon is in USDA Plant Hardiness Zone 9b (average extreme winter low 25°F to 30°F), according to the USDA 2023 map.
When is the last frost in Dixon?
The average last spring frost (32°F) in Dixon is February 10. There is still a 10% chance of frost until March 11.
When can I plant tomatoes in Dixon?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Feb 17 – Feb 24. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Davis 2 Wsw Exp Farm, CA (USC00042294), 10.8 km (6.7 mi) from the city center, elevation 18 m, based on 30 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.