Capay, CA frost dates
Last spring frostFeb 18median date
First fall frostNov 30median date
Growing season285 daysfrost-free
Hardiness zone9aZone 9a
How Capay compares
- In 8 years out of 10, the last spring frost in Capay falls between January 17 and March 14, a 56-day window. The first fall frost falls between November 15 and December 18.
- The median last frost is 41 days earlier than the California median of Mar 31.
- Its 285-day growing season is longer than 86% of the 636 California places with a regular frost season (state median 235 days).
- The last frost is 13 days earlier than the zone 9a median of Mar 3. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 9a chart.
- The weather station records an average of 15 nights a year at or below 32°F.
- Nearby Woodland, CA, 28 km away, gets only light, occasional frost, a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 17 |
| 50% (median) | February 18 |
| 10% (safe for tender plants) | March 14 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 15 |
| 50% (median) | November 30 |
| 90% (late) | December 18 |
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 Capay, CA
Capay, CA frost dates — last frost Feb 18, first frost Nov 30, zone 9a. whenisthelastfrost.com
Crop
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Start indoors: Nov 26 to Dec 10Transplant outside: Jan 21 to Feb 4
Start indoors: Dec 10 to Dec 24Transplant outside: Mar 4 to Mar 18
Start indoors: Dec 10 to Dec 24Transplant outside: Mar 4 to Mar 18
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Feb 25 to Mar 11
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Jan 28 to Feb 11Sow outdoors: Jan 21 to Feb 25Plant for fall: Oct 5 to Nov 2
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Jan 21 to Feb 4Sow outdoors: Jan 21 to Feb 4Plant for fall: Sep 21 to Oct 12
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Feb 4 to Feb 18Plant for fall: Aug 24 to Sep 14
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Jan 28 to Feb 11Plant for fall: Aug 24 to Sep 14
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Feb 4 to Feb 18Plant for fall: Aug 24 to Sep 14
Start indoors: Jan 7 to Jan 21Transplant outside: Mar 11 to Mar 25Sow outdoors: Mar 11 to Mar 25
Start indoors: Jan 7 to Jan 21Transplant outside: Feb 25 to Mar 11
Sow outdoors: Jan 7 to Jan 28Plant for fall: Sep 7 to Sep 28
Sow outdoors: Jan 7 to Jan 28Plant for fall: Oct 5 to Oct 26
Sow outdoors: Jan 14 to Feb 25Plant for fall: Oct 19 to Nov 9
Start indoors: Jan 21 to Jan 28Transplant outside: Mar 4 to Mar 11Sow outdoors: Feb 25 to Mar 11Plant for fall: Sep 14 to Sep 28
Start indoors: Jan 21 to Jan 28Sow outdoors: Feb 25 to Mar 11Plant for fall: Sep 21 to Oct 5
Start indoors: Jan 21 to Jan 28Sow outdoors: Feb 25 to Mar 11
Start indoors: Jan 21 to Jan 28Transplant outside: Mar 4 to Mar 18
Sow outdoors: Jan 28 to Feb 25Plant for fall: Sep 7 to Sep 21
Sow outdoors: Jan 28 to Feb 25Plant for fall: Sep 21 to Oct 5
Sow outdoors: Jan 28 to Feb 18
Sow outdoors: Feb 4 to Mar 4Plant for fall: Sep 21 to Oct 5
Sow outdoors: Feb 4 to Feb 25Plant for fall: Oct 5 to Oct 26
Sow outdoors: Feb 25 to Mar 18Plant for fall: Sep 14 to Sep 28
Sow outdoors: Feb 25 to Mar 11
Transplant outside: Mar 4 to Mar 25
Plant for fall: Nov 16 to Dec 21
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Capay, CA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 26 – Dec 10 | Jan 21 – Feb 4 | — | — |
| Peppers | Dec 10 – Dec 24 | Mar 4 – Mar 18 | — | — |
| Eggplant | Dec 10 – Dec 24 | Mar 4 – Mar 18 | — | — |
| Tomatoes | Dec 24 – Jan 7 | Feb 25 – Mar 11 | — | — |
| Lettuce | Dec 24 – Jan 7 | Jan 28 – Feb 11 | Jan 21 – Feb 25 | Oct 5 – Nov 2 |
| Kale | Dec 24 – Jan 7 | Jan 21 – Feb 4 | Jan 21 – Feb 4 | Sep 21 – Oct 12 |
| Broccoli | Dec 24 – Jan 7 | Feb 4 – Feb 18 | — | Aug 24 – Sep 14 |
| Cabbage | Dec 24 – Jan 7 | Jan 28 – Feb 11 | — | Aug 24 – Sep 14 |
| Cauliflower | Dec 24 – Jan 7 | Feb 4 – Feb 18 | — | Aug 24 – Sep 14 |
| Okra | Jan 7 – Jan 21 | Mar 11 – Mar 25 | Mar 11 – Mar 25 | — |
| Basil | Jan 7 – Jan 21 | Feb 25 – Mar 11 | — | — |
| Peas | — | — | Jan 7 – Jan 28 | Sep 7 – Sep 28 |
| Spinach | — | — | Jan 7 – Jan 28 | Oct 5 – Oct 26 |
| Radishes | — | — | Jan 14 – Feb 25 | Oct 19 – Nov 9 |
| Cucumbers | Jan 21 – Jan 28 | Mar 4 – Mar 11 | Feb 25 – Mar 11 | Sep 14 – Sep 28 |
| Zucchini & Summer Squash | Jan 21 – Jan 28 | — | Feb 25 – Mar 11 | Sep 21 – Oct 5 |
| Winter Squash & Pumpkins | Jan 21 – Jan 28 | — | Feb 25 – Mar 11 | — |
| Melons & Watermelon | Jan 21 – Jan 28 | Mar 4 – Mar 18 | — | — |
| Carrots | — | — | Jan 28 – Feb 25 | Sep 7 – Sep 21 |
| Beets | — | — | Jan 28 – Feb 25 | Sep 21 – Oct 5 |
| Potatoes | — | — | Jan 28 – Feb 18 | — |
| Swiss Chard | — | — | Feb 4 – Mar 4 | Sep 21 – Oct 5 |
| Cilantro | — | — | Feb 4 – Feb 25 | Oct 5 – Oct 26 |
| Green Beans | — | — | Feb 25 – Mar 18 | Sep 14 – Sep 28 |
| Sweet Corn | — | — | Feb 25 – Mar 11 | — |
| Sweet Potatoes | — | Mar 4 – Mar 25 | — | — |
| Garlic | — | — | — | Nov 16 – Dec 21 |
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 Winters, CA weather station, 24 km away (elevation 135 ft (41 m)).
Frost dates near Capay
- Esparto Feb 7 · Dec 5
- Madison Feb 7 · Dec 5
- Brooks Apr 7 · Dec 5
- Guinda Apr 10 · Nov 6
- Zamora Feb 7 · Dec 5
- Dunnigan Feb 7 · Dec 5
- Winters Feb 18 · Nov 30
- Yolo Feb 7 · Dec 5
- Rumsey Apr 10 · Nov 6
- Woodland Feb 7 · Dec 5
Frequently asked questions
When is the last frost in Capay, CA?
The median last spring frost in Capay, CA is February 18. 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 Capay, CA?
The median first fall frost is November 30, with about a 10% chance of frost before November 15.
How long is the growing season in Capay, CA?
About 285 days between the median last spring frost and first fall frost.
What planting zone is Capay, CA?
Capay, CA is in USDA hardiness zone 9a.