Holt, CA frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 25 a year). Cover tender plants when frost is forecast.
How Holt compares
- In a typical year, frost nights in Holt fall between December 8 and February 5. In 1 year in 10 the first frost comes as early as November 17, or the last frost as late as March 11.
- Holt shares its weather station with Stockton, CA, 12 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 27 |
| 50% (median) | February 5 |
| 10% (safe for tender plants) | March 11 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 17 |
| 50% (median) | December 8 |
| 90% (late) | January 6 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Holt, CA
Holt, CA frost dates — last frost Feb 5, first frost Dec 8, zone 9b. whenisthelastfrost.com
In mild climates, summer heat limits many crops as much as frost does. Use this calendar for spring planting and lean on fall and winter for cool-season crops.
When to plant vegetables in Holt, CA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 13 – Nov 27 | Jan 8 – Jan 22 | — | — |
| Peppers | Nov 27 – Dec 11 | Feb 19 – Mar 5 | — | — |
| Eggplant | Nov 27 – Dec 11 | Feb 19 – Mar 5 | — | — |
| Tomatoes | Dec 11 – Dec 25 | Feb 12 – Feb 26 | — | — |
| Lettuce | Dec 11 – Dec 25 | Jan 15 – Jan 29 | Jan 8 – Feb 12 | Oct 13 – Nov 10 |
| Kale | Dec 11 – Dec 25 | Jan 8 – Jan 22 | Jan 8 – Jan 22 | Sep 29 – Oct 20 |
| Broccoli | Dec 11 – Dec 25 | Jan 22 – Feb 5 | — | Sep 1 – Sep 22 |
| Cabbage | Dec 11 – Dec 25 | Jan 15 – Jan 29 | — | Sep 1 – Sep 22 |
| Cauliflower | Dec 11 – Dec 25 | Jan 22 – Feb 5 | — | Sep 1 – Sep 22 |
| Okra | Dec 25 – Jan 8 | Feb 26 – Mar 12 | Feb 26 – Mar 12 | — |
| Basil | Dec 25 – Jan 8 | Feb 12 – Feb 26 | — | — |
| Peas | — | — | Dec 25 – Jan 15 | Sep 15 – Oct 6 |
| Spinach | — | — | Dec 25 – Jan 15 | Oct 13 – Nov 3 |
| Radishes | — | — | Jan 1 – Feb 12 | Oct 27 – Nov 17 |
| Cucumbers | Jan 8 – Jan 15 | Feb 19 – Feb 26 | Feb 12 – Feb 26 | Sep 22 – Oct 6 |
| Zucchini & Summer Squash | Jan 8 – Jan 15 | — | Feb 12 – Feb 26 | Sep 29 – Oct 13 |
| Winter Squash & Pumpkins | Jan 8 – Jan 15 | — | Feb 12 – Feb 26 | — |
| Melons & Watermelon | Jan 8 – Jan 15 | Feb 19 – Mar 5 | — | — |
| Carrots | — | — | Jan 15 – Feb 12 | Sep 15 – Sep 29 |
| Beets | — | — | Jan 15 – Feb 12 | Sep 29 – Oct 13 |
| Potatoes | — | — | Jan 15 – Feb 5 | — |
| Swiss Chard | — | — | Jan 22 – Feb 19 | Sep 29 – Oct 13 |
| Cilantro | — | — | Jan 22 – Feb 12 | Oct 13 – Nov 3 |
| Green Beans | — | — | Feb 12 – Mar 5 | Sep 22 – Oct 6 |
| Sweet Corn | — | — | Feb 12 – Feb 26 | — |
| Sweet Potatoes | — | Feb 19 – Mar 12 | — | — |
| Garlic | — | — | — | Nov 24 – Dec 29 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Stockton Fire Stn, CA weather station, 12 km away (elevation 13 ft (4 m)).
Frost dates near Holt
- Stockton Feb 5 · Dec 8
- French Camp Feb 6 · Dec 1
- Discovery Bay Jan 19 · Dec 10
- Lathrop Feb 6 · Dec 1
- Byron Jan 19 · Dec 10
- Knightsen Jan 12 · Dec 19
- Bethel Island Jan 12 · Dec 19
- Brentwood Jan 12 · Dec 19
- Manteca Feb 6 · Dec 1
- Tracy Feb 25 · Nov 26
Frequently asked questions
When is the last frost in Holt, CA?
The median last spring frost in Holt, CA is February 5. There is still about a 10% chance of frost after March 11, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Holt, CA?
The median first fall frost is December 8, with about a 10% chance of frost before November 17.
How long is the growing season in Holt, CA?
About 306 days between the median last spring frost and first fall frost.
What planting zone is Holt, CA?
Holt, CA is in USDA hardiness zone 9b.