Knights Landing, CA frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 9 a year). Cover tender plants when frost is forecast.
How Knights Landing compares
- In a typical year, frost nights in Knights Landing fall between December 5 and February 7. In 1 year in 10 the first frost comes as early as November 19, or the last frost as late as March 11.
- Knights Landing shares its weather station with Woodland, CA, 19 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 9 |
| 50% (median) | February 7 |
| 10% (safe for tender plants) | March 11 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 19 |
| 50% (median) | December 5 |
| 90% (late) | January 1 |
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 Knights Landing, CA
Knights Landing, CA frost dates — last frost Feb 7, first frost Dec 5, 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 Knights Landing, CA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 15 – Nov 29 | Jan 10 – Jan 24 | — | — |
| Peppers | Nov 29 – Dec 13 | Feb 21 – Mar 7 | — | — |
| Eggplant | Nov 29 – Dec 13 | Feb 21 – Mar 7 | — | — |
| Tomatoes | Dec 13 – Dec 27 | Feb 14 – Feb 28 | — | — |
| Lettuce | Dec 13 – Dec 27 | Jan 17 – Jan 31 | Jan 10 – Feb 14 | Oct 10 – Nov 7 |
| Kale | Dec 13 – Dec 27 | Jan 10 – Jan 24 | Jan 10 – Jan 24 | Sep 26 – Oct 17 |
| Broccoli | Dec 13 – Dec 27 | Jan 24 – Feb 7 | — | Aug 29 – Sep 19 |
| Cabbage | Dec 13 – Dec 27 | Jan 17 – Jan 31 | — | Aug 29 – Sep 19 |
| Cauliflower | Dec 13 – Dec 27 | Jan 24 – Feb 7 | — | Aug 29 – Sep 19 |
| Okra | Dec 27 – Jan 10 | Feb 28 – Mar 14 | Feb 28 – Mar 14 | — |
| Basil | Dec 27 – Jan 10 | Feb 14 – Feb 28 | — | — |
| Peas | — | — | Dec 27 – Jan 17 | Sep 12 – Oct 3 |
| Spinach | — | — | Dec 27 – Jan 17 | Oct 10 – Oct 31 |
| Radishes | — | — | Jan 3 – Feb 14 | Oct 24 – Nov 14 |
| Cucumbers | Jan 10 – Jan 17 | Feb 21 – Feb 28 | Feb 14 – Feb 28 | Sep 19 – Oct 3 |
| Zucchini & Summer Squash | Jan 10 – Jan 17 | — | Feb 14 – Feb 28 | Sep 26 – Oct 10 |
| Winter Squash & Pumpkins | Jan 10 – Jan 17 | — | Feb 14 – Feb 28 | — |
| Melons & Watermelon | Jan 10 – Jan 17 | Feb 21 – Mar 7 | — | — |
| Carrots | — | — | Jan 17 – Feb 14 | Sep 12 – Sep 26 |
| Beets | — | — | Jan 17 – Feb 14 | Sep 26 – Oct 10 |
| Potatoes | — | — | Jan 17 – Feb 7 | — |
| Swiss Chard | — | — | Jan 24 – Feb 21 | Sep 26 – Oct 10 |
| Cilantro | — | — | Jan 24 – Feb 14 | Oct 10 – Oct 31 |
| Green Beans | — | — | Feb 14 – Mar 7 | Sep 19 – Oct 3 |
| Sweet Corn | — | — | Feb 14 – Feb 28 | — |
| Sweet Potatoes | — | Feb 21 – Mar 14 | — | — |
| Garlic | — | — | — | Nov 21 – Dec 26 |
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 Woodland 1 Wnw, CA weather station, 20 km away (elevation 66 ft (20 m)).
Frost dates near Knights Landing
- Robbins Feb 22 · Nov 24
- Yolo Feb 7 · Dec 5
- Nicolaus Feb 22 · Nov 24
- Zamora Feb 7 · Dec 5
- Woodland Feb 7 · Dec 5
- Pleasant Grove Feb 22 · Nov 24
- Meridian Feb 11 · Nov 30
- Dunnigan Feb 7 · Dec 5
- Rio Oso Feb 11 · Nov 30
- Yuba City Feb 11 · Nov 30
Frequently asked questions
When is the last frost in Knights Landing, CA?
The median last spring frost in Knights Landing, CA is February 7. 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 Knights Landing, CA?
The median first fall frost is December 5, with about a 10% chance of frost before November 19.
How long is the growing season in Knights Landing, CA?
About 301 days between the median last spring frost and first fall frost.
What planting zone is Knights Landing, CA?
Knights Landing, CA is in USDA hardiness zone 9b.