Sebastian, TX frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 2 a year). Cover tender plants when frost is forecast.
How Sebastian compares
- In a typical year, frost nights in Sebastian fall between December 27 and January 10. In 1 year in 10 the first frost comes as early as December 3, or the last frost as late as February 24.
- Compared with Harlingen, TX, 19 km away, the last frost here is 1 day later than there.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 13 |
| 50% (median) | January 10 |
| 10% (safe for tender plants) | February 24 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 3 |
| 50% (median) | December 27 |
| 90% (late) | February 1 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Gardening where frost is rare
Sebastian, TX only freezes on a few winter nights, so the usual "plant after the last frost" rule doesn't apply. Heat and rainfall decide the seasons instead:
- Cool-season crops (lettuce, broccoli, peas, carrots) grow best from fall through late winter.
- Warm-season crops (tomatoes, peppers, beans, squash) do best planted in late winter to spring, and again in late summer for a fall crop — midsummer heat can stop tomatoes setting fruit.
- Heat lovers (okra, sweet potatoes, melons) can be planted through spring and early summer.
About these dates
Based on 1991–2020 NOAA climate normals for the Santa Rosa 3 Wnw, TX weather station, 11 km away (elevation 49 ft (15 m)).
Frost dates near Sebastian
- Lyford Jan 21 · Dec 26
- Santa Rosa Jan 10 · Dec 27
- La Villa Jan 10 · Dec 27
- Combes Jan 9 · Jan 3
- Edcouch Jan 10 · Dec 27
- Raymondville Jan 21 · Dec 26
- Lasara Jan 21 · Dec 26
- Elsa Jan 10 · Dec 27
- Harlingen Jan 9 · Jan 3
- La Feria Jan 10 · Dec 27
Frequently asked questions
When is the last frost in Sebastian, TX?
The median last spring frost in Sebastian, TX is January 10. There is still about a 10% chance of frost after February 24, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Sebastian, TX?
The median first fall frost is December 27, with about a 10% chance of frost before December 3.
How long is the growing season in Sebastian, TX?
About 351 days between the median last spring frost and first fall frost.
What planting zone is Sebastian, TX?
Sebastian, TX is in USDA hardiness zone 10a.