South Houston, TX frost dates
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 South Houston compares
- In a typical year, frost nights in South Houston fall between December 28 and January 30. In 1 year in 10 the first frost comes as early as November 27, or the last frost as late as March 1.
- South Houston shares its weather station with Pasadena, TX, 7 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 29 |
| 50% (median) | January 30 |
| 10% (safe for tender plants) | March 1 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 27 |
| 50% (median) | December 28 |
| 90% (late) | January 27 |
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 South Houston, TX
South Houston, TX frost dates — last frost Jan 30, first frost Dec 28, 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 South Houston, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 7 – Nov 21 | Jan 2 – Jan 16 | — | — |
| Peppers | Nov 21 – Dec 5 | Feb 13 – Feb 27 | — | — |
| Eggplant | Nov 21 – Dec 5 | Feb 13 – Feb 27 | — | — |
| Tomatoes | Dec 5 – Dec 19 | Feb 6 – Feb 20 | — | — |
| Lettuce | Dec 5 – Dec 19 | Jan 9 – Jan 23 | Jan 2 – Feb 6 | Nov 2 – Nov 30 |
| Kale | Dec 5 – Dec 19 | Jan 2 – Jan 16 | Jan 2 – Jan 16 | Oct 19 – Nov 9 |
| Broccoli | Dec 5 – Dec 19 | Jan 16 – Jan 30 | — | Sep 21 – Oct 12 |
| Cabbage | Dec 5 – Dec 19 | Jan 9 – Jan 23 | — | Sep 21 – Oct 12 |
| Cauliflower | Dec 5 – Dec 19 | Jan 16 – Jan 30 | — | Sep 21 – Oct 12 |
| Okra | Dec 19 – Jan 2 | Feb 20 – Mar 6 | Feb 20 – Mar 6 | — |
| Basil | Dec 19 – Jan 2 | Feb 6 – Feb 20 | — | — |
| Peas | — | — | Dec 19 – Jan 9 | Oct 5 – Oct 26 |
| Spinach | — | — | Dec 19 – Jan 9 | Nov 2 – Nov 23 |
| Radishes | — | — | Dec 26 – Feb 6 | Nov 16 – Dec 7 |
| Cucumbers | Jan 2 – Jan 9 | Feb 13 – Feb 20 | Feb 6 – Feb 20 | Oct 12 – Oct 26 |
| Zucchini & Summer Squash | Jan 2 – Jan 9 | — | Feb 6 – Feb 20 | Oct 19 – Nov 2 |
| Winter Squash & Pumpkins | Jan 2 – Jan 9 | — | Feb 6 – Feb 20 | — |
| Melons & Watermelon | Jan 2 – Jan 9 | Feb 13 – Feb 27 | — | — |
| Carrots | — | — | Jan 9 – Feb 6 | Oct 5 – Oct 19 |
| Beets | — | — | Jan 9 – Feb 6 | Oct 19 – Nov 2 |
| Potatoes | — | — | Jan 9 – Jan 30 | — |
| Swiss Chard | — | — | Jan 16 – Feb 13 | Oct 19 – Nov 2 |
| Cilantro | — | — | Jan 16 – Feb 6 | Nov 2 – Nov 23 |
| Green Beans | — | — | Feb 6 – Feb 27 | Oct 12 – Oct 26 |
| Sweet Corn | — | — | Feb 6 – Feb 20 | — |
| Sweet Potatoes | — | Feb 13 – Mar 6 | — | — |
| Garlic | — | — | — | Dec 14 – Jan 18 |
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 Houston Hobby Ap, TX weather station, 6 km away (elevation 43 ft (13 m)).
Frost dates near South Houston
- Pasadena Jan 30 · Dec 28
- Galena Park Feb 2 · Dec 25
- Deer Park Jan 30 · Dec 28
- Webster Jan 31 · Dec 27
- Pearland Jan 31 · Dec 27
- Friendswood Jan 31 · Dec 27
- Channelview Feb 2 · Dec 25
- La Porte Jan 31 · Dec 14
- Seabrook Jan 31 · Dec 14
- League City Jan 31 · Dec 14
Frequently asked questions
When is the last frost in South Houston, TX?
The median last spring frost in South Houston, TX is January 30. There is still about a 10% chance of frost after March 1, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in South Houston, TX?
The median first fall frost is December 28, with about a 10% chance of frost before November 27.
How long is the growing season in South Houston, TX?
About 332 days between the median last spring frost and first fall frost.
What planting zone is South Houston, TX?
South Houston, TX is in USDA hardiness zone 9b.