Frost dates for 95154 — San Jose, CA
Frost is light and occasional here — typically a few cold nights around midwinter (about 13 a year). Cover tender plants when frost is forecast.
How San Jose compares
- In a typical year, frost nights in San Jose fall between December 6 and February 2. In 1 year in 10 the first frost comes as early as November 16, or the last frost as late as March 14.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 31 |
| 50% (median) | February 2 |
| 10% (safe for tender plants) | March 14 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 16 |
| 50% (median) | December 6 |
| 90% (late) | January 7 |
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 San Jose, CA
Frost dates for 95154 — San Jose, CA — last frost Feb 2, first frost Dec 6, 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 San Jose, CA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 10 – Nov 24 | Jan 5 – Jan 19 | — | — |
| Peppers | Nov 24 – Dec 8 | Feb 16 – Mar 2 | — | — |
| Eggplant | Nov 24 – Dec 8 | Feb 16 – Mar 2 | — | — |
| Tomatoes | Dec 8 – Dec 22 | Feb 9 – Feb 23 | — | — |
| Lettuce | Dec 8 – Dec 22 | Jan 12 – Jan 26 | Jan 5 – Feb 9 | Oct 11 – Nov 8 |
| Kale | Dec 8 – Dec 22 | Jan 5 – Jan 19 | Jan 5 – Jan 19 | Sep 27 – Oct 18 |
| Broccoli | Dec 8 – Dec 22 | Jan 19 – Feb 2 | — | Aug 30 – Sep 20 |
| Cabbage | Dec 8 – Dec 22 | Jan 12 – Jan 26 | — | Aug 30 – Sep 20 |
| Cauliflower | Dec 8 – Dec 22 | Jan 19 – Feb 2 | — | Aug 30 – Sep 20 |
| Okra | Dec 22 – Jan 5 | Feb 23 – Mar 9 | Feb 23 – Mar 9 | — |
| Basil | Dec 22 – Jan 5 | Feb 9 – Feb 23 | — | — |
| Peas | — | — | Dec 22 – Jan 12 | Sep 13 – Oct 4 |
| Spinach | — | — | Dec 22 – Jan 12 | Oct 11 – Nov 1 |
| Radishes | — | — | Dec 29 – Feb 9 | Oct 25 – Nov 15 |
| Cucumbers | Jan 5 – Jan 12 | Feb 16 – Feb 23 | Feb 9 – Feb 23 | Sep 20 – Oct 4 |
| Zucchini & Summer Squash | Jan 5 – Jan 12 | — | Feb 9 – Feb 23 | Sep 27 – Oct 11 |
| Winter Squash & Pumpkins | Jan 5 – Jan 12 | — | Feb 9 – Feb 23 | — |
| Melons & Watermelon | Jan 5 – Jan 12 | Feb 16 – Mar 2 | — | — |
| Carrots | — | — | Jan 12 – Feb 9 | Sep 13 – Sep 27 |
| Beets | — | — | Jan 12 – Feb 9 | Sep 27 – Oct 11 |
| Potatoes | — | — | Jan 12 – Feb 2 | — |
| Swiss Chard | — | — | Jan 19 – Feb 16 | Sep 27 – Oct 11 |
| Cilantro | — | — | Jan 19 – Feb 9 | Oct 11 – Nov 1 |
| Green Beans | — | — | Feb 9 – Mar 2 | Sep 20 – Oct 4 |
| Sweet Corn | — | — | Feb 9 – Feb 23 | — |
| Sweet Potatoes | — | Feb 16 – Mar 9 | — | — |
| Garlic | — | — | — | Nov 22 – Dec 27 |
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 Los Gatos, CA weather station, 5 km away (elevation 364 ft (111 m)).
ZIP codes in San Jose: 95025 95101 95103 95106 95108 95109 95110 95111 95112 95113 95115 95116 95117 95118 95119 95120 95121 95122 95123 95124 95125 95126 95127 95128 95129 95130 95131 95132 95133 95134 95135 95136 95138 95139 95141 95148 95150 95151 95152 95153 95154 95155 95156 95157 95158 95159 95160 95161 95164 95170 95172 95173 95190 95191 95192 95193 95194 95196
Frost dates near San Jose
- Campbell Feb 2 · Dec 6
- Los Gatos Feb 2 · Dec 6
- Saratoga Feb 2 · Dec 6
- Santa Clara Jan 12 · Dec 22
- New Almaden Feb 2 · Dec 6
- Cupertino Jan 6 · Dec 23
- Holy City Feb 2 · Dec 6
- Redwood Estates Feb 2 · Dec 6
Frequently asked questions
When is the last frost in San Jose, CA?
The median last spring frost in San Jose, CA is February 2. There is still about a 10% chance of frost after March 14, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in San Jose, CA?
The median first fall frost is December 6, with about a 10% chance of frost before November 16.
How long is the growing season in San Jose, CA?
About 307 days between the median last spring frost and first fall frost.
What planting zone is San Jose, CA?
San Jose, CA is in USDA hardiness zone 9b.