O Neals, CA frost dates
Last spring frostMar 25median date
First fall frostDec 3median date
Growing season253 daysfrost-free
Hardiness zone9aZone 9a
How O Neals compares
- In 8 years out of 10, the last spring frost in O Neals falls between February 5 and April 22, a 76-day window. The first fall frost falls between November 14 and December 21.
- The median last frost is 6 days earlier than the California median of Mar 31.
- Its 253-day growing season is longer than 56% of the 636 California places with a regular frost season (state median 235 days).
- The last frost is 22 days later 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 23 nights a year at or below 32°F.
- Compared with Madera, CA, 37 km away, the last frost here is 35 days later than there and the growing season is 29 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 5 |
| 50% (median) | March 25 |
| 10% (safe for tender plants) | April 22 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 14 |
| 50% (median) | December 3 |
| 90% (late) | December 21 |
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 O Neals, CA
O Neals, CA frost dates — last frost Mar 25, first frost Dec 3, zone 9a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 31 to Jan 14Start indoors: Dec 31 to Jan 14Transplant outside: Feb 25 to Mar 11
Start indoors: Jan 14 to Jan 28Transplant outside: Apr 8 to Apr 22
Start indoors: Jan 14 to Jan 28Transplant outside: Apr 8 to Apr 22
Start indoors: Jan 28 to Feb 11Transplant outside: Apr 1 to Apr 15
Start indoors: Jan 28 to Feb 11Transplant outside: Mar 4 to Mar 18Sow outdoors: Feb 25 to Apr 1Plant for fall: Oct 8 to Nov 5
Start indoors: Jan 28 to Feb 11Transplant outside: Feb 25 to Mar 11Sow outdoors: Feb 25 to Mar 11Plant for fall: Sep 24 to Oct 15
Start indoors: Jan 28 to Feb 11Transplant outside: Mar 11 to Mar 25Plant for fall: Aug 27 to Sep 17
Start indoors: Jan 28 to Feb 11Transplant outside: Mar 4 to Mar 18Plant for fall: Aug 27 to Sep 17
Start indoors: Jan 28 to Feb 11Transplant outside: Mar 11 to Mar 25Plant for fall: Aug 27 to Sep 17
Start indoors: Feb 11 to Feb 25Transplant outside: Apr 15 to Apr 29Sow outdoors: Apr 15 to Apr 29
Start indoors: Feb 11 to Feb 25Transplant outside: Apr 1 to Apr 15
Sow outdoors: Feb 11 to Mar 4Plant for fall: Sep 10 to Oct 1
Sow outdoors: Feb 11 to Mar 4Plant for fall: Oct 8 to Oct 29
Sow outdoors: Feb 18 to Apr 1Plant for fall: Oct 22 to Nov 12
Start indoors: Feb 25 to Mar 4Transplant outside: Apr 8 to Apr 15Sow outdoors: Apr 1 to Apr 15Plant for fall: Sep 17 to Oct 1
Start indoors: Feb 25 to Mar 4Sow outdoors: Apr 1 to Apr 15Plant for fall: Sep 24 to Oct 8
Start indoors: Feb 25 to Mar 4Sow outdoors: Apr 1 to Apr 15
Start indoors: Feb 25 to Mar 4Transplant outside: Apr 8 to Apr 22
Sow outdoors: Mar 4 to Apr 1Plant for fall: Sep 10 to Sep 24
Sow outdoors: Mar 4 to Apr 1Plant for fall: Sep 24 to Oct 8
Sow outdoors: Mar 4 to Mar 25
Sow outdoors: Mar 11 to Apr 8Plant for fall: Sep 24 to Oct 8
Sow outdoors: Mar 11 to Apr 1Plant for fall: Oct 8 to Oct 29
Sow outdoors: Apr 1 to Apr 22Plant for fall: Sep 17 to Oct 1
Sow outdoors: Apr 1 to Apr 15
Transplant outside: Apr 8 to Apr 29
Plant for fall: Nov 19 to Dec 24
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in O Neals, CA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 31 – Jan 14 | Feb 25 – Mar 11 | — | — |
| Peppers | Jan 14 – Jan 28 | Apr 8 – Apr 22 | — | — |
| Eggplant | Jan 14 – Jan 28 | Apr 8 – Apr 22 | — | — |
| Tomatoes | Jan 28 – Feb 11 | Apr 1 – Apr 15 | — | — |
| Lettuce | Jan 28 – Feb 11 | Mar 4 – Mar 18 | Feb 25 – Apr 1 | Oct 8 – Nov 5 |
| Kale | Jan 28 – Feb 11 | Feb 25 – Mar 11 | Feb 25 – Mar 11 | Sep 24 – Oct 15 |
| Broccoli | Jan 28 – Feb 11 | Mar 11 – Mar 25 | — | Aug 27 – Sep 17 |
| Cabbage | Jan 28 – Feb 11 | Mar 4 – Mar 18 | — | Aug 27 – Sep 17 |
| Cauliflower | Jan 28 – Feb 11 | Mar 11 – Mar 25 | — | Aug 27 – Sep 17 |
| Okra | Feb 11 – Feb 25 | Apr 15 – Apr 29 | Apr 15 – Apr 29 | — |
| Basil | Feb 11 – Feb 25 | Apr 1 – Apr 15 | — | — |
| Peas | — | — | Feb 11 – Mar 4 | Sep 10 – Oct 1 |
| Spinach | — | — | Feb 11 – Mar 4 | Oct 8 – Oct 29 |
| Radishes | — | — | Feb 18 – Apr 1 | Oct 22 – Nov 12 |
| Cucumbers | Feb 25 – Mar 4 | Apr 8 – Apr 15 | Apr 1 – Apr 15 | Sep 17 – Oct 1 |
| Zucchini & Summer Squash | Feb 25 – Mar 4 | — | Apr 1 – Apr 15 | Sep 24 – Oct 8 |
| Winter Squash & Pumpkins | Feb 25 – Mar 4 | — | Apr 1 – Apr 15 | — |
| Melons & Watermelon | Feb 25 – Mar 4 | Apr 8 – Apr 22 | — | — |
| Carrots | — | — | Mar 4 – Apr 1 | Sep 10 – Sep 24 |
| Beets | — | — | Mar 4 – Apr 1 | Sep 24 – Oct 8 |
| Potatoes | — | — | Mar 4 – Mar 25 | — |
| Swiss Chard | — | — | Mar 11 – Apr 8 | Sep 24 – Oct 8 |
| Cilantro | — | — | Mar 11 – Apr 1 | Oct 8 – Oct 29 |
| Green Beans | — | — | Apr 1 – Apr 22 | Sep 17 – Oct 1 |
| Sweet Corn | — | — | Apr 1 – Apr 15 | — |
| Sweet Potatoes | — | Apr 8 – Apr 29 | — | — |
| Garlic | — | — | — | Nov 19 – Dec 24 |
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 Auberry 2 Nw, CA weather station, 16 km away (elevation 2,090 ft (637 m)).
Frost dates near O Neals
- Coarsegold Apr 24 · Nov 4
- Friant Mar 9 · Dec 1
- North Fork Apr 24 · Nov 4
- Wishon Apr 24 · Nov 4
- Bass Lake Apr 24 · Nov 4
- Oakhurst Apr 24 · Nov 4
- Auberry Mar 25 · Dec 3
- Prather Mar 25 · Dec 3
- Raymond Apr 24 · Nov 4
- Ahwahnee May 24 · Oct 10
Frequently asked questions
When is the last frost in O Neals, CA?
The median last spring frost in O Neals, CA is March 25. There is still about a 10% chance of frost after April 22, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in O Neals, CA?
The median first fall frost is December 3, with about a 10% chance of frost before November 14.
How long is the growing season in O Neals, CA?
About 253 days between the median last spring frost and first fall frost.
What planting zone is O Neals, CA?
O Neals, CA is in USDA hardiness zone 9a.