Port O Connor, TX frost dates
Last spring frostFeb 4median date
First fall frostDec 27median date
Growing season326 daysfrost-free
Hardiness zone9bZone 9b
Frost is light and occasional here — typically a few cold nights around midwinter (about 4 a year). Cover tender plants when frost is forecast.
How Port O Connor compares
- In a typical year, frost nights in Port O Connor fall between December 27 and February 4. In 1 year in 10 the first frost comes as early as November 20, or the last frost as late as March 6.
- Nearby Victoria, TX, 74 km away, has a regular frost season (last frost Feb 14), a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 29 |
| 50% (median) | February 4 |
| 10% (safe for tender plants) | March 6 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 20 |
| 50% (median) | December 27 |
| 90% (late) | February 4 |
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 Port O Connor, TX
Port O Connor, TX frost dates — last frost Feb 4, first frost Dec 27, 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.
Crop
JFMAMJJASOND
Start indoors: Nov 12 to Nov 26Transplant outside: Jan 7 to Jan 21
Start indoors: Nov 26 to Dec 10Transplant outside: Feb 18 to Mar 4
Start indoors: Nov 26 to Dec 10Transplant outside: Feb 18 to Mar 4
Start indoors: Dec 10 to Dec 24Transplant outside: Feb 11 to Feb 25
Start indoors: Dec 10 to Dec 24Transplant outside: Jan 14 to Jan 28Sow outdoors: Jan 7 to Feb 11Plant for fall: Nov 1 to Nov 29
Start indoors: Dec 10 to Dec 24Transplant outside: Jan 7 to Jan 21Sow outdoors: Jan 7 to Jan 21Plant for fall: Oct 18 to Nov 8
Start indoors: Dec 10 to Dec 24Transplant outside: Jan 21 to Feb 4Plant for fall: Sep 20 to Oct 11
Start indoors: Dec 10 to Dec 24Transplant outside: Jan 14 to Jan 28Plant for fall: Sep 20 to Oct 11
Start indoors: Dec 10 to Dec 24Transplant outside: Jan 21 to Feb 4Plant for fall: Sep 20 to Oct 11
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Feb 25 to Mar 11Sow outdoors: Feb 25 to Mar 11
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Feb 11 to Feb 25
Sow outdoors: Dec 24 to Jan 14Sow outdoors: Dec 24 to Jan 14Plant for fall: Oct 4 to Oct 25
Sow outdoors: Dec 24 to Jan 14Sow outdoors: Dec 24 to Jan 14Plant for fall: Nov 1 to Nov 22
Sow outdoors: Dec 31 to Feb 11Sow outdoors: Dec 31 to Feb 11Plant for fall: Nov 15 to Dec 6
Start indoors: Jan 7 to Jan 14Transplant outside: Feb 18 to Feb 25Sow outdoors: Feb 11 to Feb 25Plant for fall: Oct 11 to Oct 25
Start indoors: Jan 7 to Jan 14Sow outdoors: Feb 11 to Feb 25Plant for fall: Oct 18 to Nov 1
Start indoors: Jan 7 to Jan 14Sow outdoors: Feb 11 to Feb 25
Start indoors: Jan 7 to Jan 14Transplant outside: Feb 18 to Mar 4
Sow outdoors: Jan 14 to Feb 11Plant for fall: Oct 4 to Oct 18
Sow outdoors: Jan 14 to Feb 11Plant for fall: Oct 18 to Nov 1
Sow outdoors: Jan 14 to Feb 4
Sow outdoors: Jan 21 to Feb 18Plant for fall: Oct 18 to Nov 1
Sow outdoors: Jan 21 to Feb 11Plant for fall: Nov 1 to Nov 22
Sow outdoors: Feb 11 to Mar 4Plant for fall: Oct 11 to Oct 25
Sow outdoors: Feb 11 to Feb 25
Transplant outside: Feb 18 to Mar 11
Plant for fall: Dec 13 to Jan 17Plant for fall: Dec 13 to Jan 17
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Port O Connor, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 12 – Nov 26 | Jan 7 – Jan 21 | — | — |
| Peppers | Nov 26 – Dec 10 | Feb 18 – Mar 4 | — | — |
| Eggplant | Nov 26 – Dec 10 | Feb 18 – Mar 4 | — | — |
| Tomatoes | Dec 10 – Dec 24 | Feb 11 – Feb 25 | — | — |
| Lettuce | Dec 10 – Dec 24 | Jan 14 – Jan 28 | Jan 7 – Feb 11 | Nov 1 – Nov 29 |
| Kale | Dec 10 – Dec 24 | Jan 7 – Jan 21 | Jan 7 – Jan 21 | Oct 18 – Nov 8 |
| Broccoli | Dec 10 – Dec 24 | Jan 21 – Feb 4 | — | Sep 20 – Oct 11 |
| Cabbage | Dec 10 – Dec 24 | Jan 14 – Jan 28 | — | Sep 20 – Oct 11 |
| Cauliflower | Dec 10 – Dec 24 | Jan 21 – Feb 4 | — | Sep 20 – Oct 11 |
| Okra | Dec 24 – Jan 7 | Feb 25 – Mar 11 | Feb 25 – Mar 11 | — |
| Basil | Dec 24 – Jan 7 | Feb 11 – Feb 25 | — | — |
| Peas | — | — | Dec 24 – Jan 14 | Oct 4 – Oct 25 |
| Spinach | — | — | Dec 24 – Jan 14 | Nov 1 – Nov 22 |
| Radishes | — | — | Dec 31 – Feb 11 | Nov 15 – Dec 6 |
| Cucumbers | Jan 7 – Jan 14 | Feb 18 – Feb 25 | Feb 11 – Feb 25 | Oct 11 – Oct 25 |
| Zucchini & Summer Squash | Jan 7 – Jan 14 | — | Feb 11 – Feb 25 | Oct 18 – Nov 1 |
| Winter Squash & Pumpkins | Jan 7 – Jan 14 | — | Feb 11 – Feb 25 | — |
| Melons & Watermelon | Jan 7 – Jan 14 | Feb 18 – Mar 4 | — | — |
| Carrots | — | — | Jan 14 – Feb 11 | Oct 4 – Oct 18 |
| Beets | — | — | Jan 14 – Feb 11 | Oct 18 – Nov 1 |
| Potatoes | — | — | Jan 14 – Feb 4 | — |
| Swiss Chard | — | — | Jan 21 – Feb 18 | Oct 18 – Nov 1 |
| Cilantro | — | — | Jan 21 – Feb 11 | Nov 1 – Nov 22 |
| Green Beans | — | — | Feb 11 – Mar 4 | Oct 11 – Oct 25 |
| Sweet Corn | — | — | Feb 11 – Feb 25 | — |
| Sweet Potatoes | — | Feb 18 – Mar 11 | — | — |
| Garlic | — | — | — | Dec 13 – Jan 17 |
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 Port O'Connor, TX weather station, 3 km away (elevation 7 ft (2 m)).
Frost dates near Port O Connor
- Port Lavaca Feb 1 · Dec 21
- Point Comfort Feb 1 · Dec 21
- Seadrift Jan 30 · Dec 27
- Palacios Feb 1 · Dec 17
- Lolita Feb 1 · Dec 21
- Collegeport Feb 1 · Dec 17
- La Salle Feb 1 · Dec 21
- Austwell Jan 30 · Dec 27
- Vanderbilt Feb 1 · Dec 21
- La Ward Feb 1 · Dec 21
Frequently asked questions
When is the last frost in Port O Connor, TX?
The median last spring frost in Port O Connor, TX is February 4. There is still about a 10% chance of frost after March 6, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Port O Connor, TX?
The median first fall frost is December 27, with about a 10% chance of frost before November 20.
How long is the growing season in Port O Connor, TX?
About 326 days between the median last spring frost and first fall frost.
What planting zone is Port O Connor, TX?
Port O Connor, TX is in USDA hardiness zone 9b.