Newman, CA planting zone & frost dates
Newman is in USDA hardiness zone 9b. The last spring frost usually comes around February 26 and the first fall frost around November 29, for a growing season of about 273 days.
Planting calendar for Newman
Dates are counted from the average last spring frost (February 26) 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: Jan 1 – Jan 15 Transplant outdoors: Mar 5 – Mar 12 |
| Peppers | Start seeds indoors: Dec 18 – Jan 1 Transplant outdoors: Mar 12 – Mar 19 |
| Eggplant | Start seeds indoors: Dec 18 – Jan 1 Transplant outdoors: Mar 12 – Mar 19 |
| Broccoli | Start seeds indoors: Dec 18 – Jan 1 Transplant outdoors: Jan 29 – Feb 12 |
| Cabbage | Start seeds indoors: Dec 18 – Jan 1 Transplant outdoors: Jan 29 – Feb 12 |
| Onions (sets) | Plant outdoors: Jan 29 – Feb 12 |
| Peas | Sow outdoors: Jan 15 – Jan 29 |
| Spinach | Sow outdoors: Jan 15 – Jan 29 |
| Lettuce | Sow outdoors: Jan 29 – Feb 12 |
| Carrots | Sow outdoors: Jan 29 – Feb 12 |
| Potatoes | Plant outdoors: Jan 29 – Feb 12 |
| Beans | Sow outdoors: Mar 5 – Mar 12 |
| Sweet corn | Sow outdoors: Mar 5 – Mar 12 |
| Cucumbers | Sow outdoors: Mar 5 – Mar 12 |
| Squash & zucchini | Sow outdoors: Mar 5 – Mar 12 |
| Basil | Start seeds indoors: Jan 15 – Jan 29 Transplant outdoors: Mar 5 – Mar 12 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Oct 4 (8 weeks before the average first fall frost on Nov 29).
Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Jan 18 | Feb 26 | Apr 21 |
| First 32°F frost in fall is before | Dec 21 | Nov 29 | Nov 12 |
How to read it: in spring there is a 10% chance of a frost after April 21, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 12. A hard freeze (28°F) usually ends around January 20.
Hardiness zone by ZIP code in Newman
- 95360 zone 9b
Nearby cities
Questions
What growing zone is Newman, CA?
Newman 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 Newman?
The average last spring frost (32°F) in Newman is February 26. There is still a 10% chance of frost until April 21.
When can I plant tomatoes in Newman?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Mar 5 – Mar 12. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Newman, CA (USC00046168), 3.6 km (2.2 mi) from the city center, elevation 27 m, based on 26 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.