Los Fresnos, TX frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 1 a year). Cover tender plants when frost is forecast.
How Los Fresnos compares
- In a typical year, frost nights in Los Fresnos fall between January 4 and January 8. In 1 year in 10 the first frost comes as early as December 10, or the last frost as late as February 7.
- Compared with Brownsville, TX, 21 km away, the last frost here is 1 day earlier than there.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 16 |
| 50% (median) | January 8 |
| 10% (safe for tender plants) | February 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 10 |
| 50% (median) | January 4 |
| 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.
Gardening where frost is rare
Los Fresnos, 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 Port Isabel Cameron Ap, TX weather station, 9 km away (elevation 20 ft (6 m)).
Frost dates near Los Fresnos
- Port Isabel Jan 3 · Jan 1
- Lozano Jan 8 · Dec 29
- Olmito Jan 9 · Jan 4
- Rio Hondo Jan 8 · Dec 29
- Brownsville Jan 9 · Jan 4
- San Benito Jan 9 · Jan 3
- South Padre Island Jan 8 · Jan 4
- Harlingen Jan 9 · Jan 3
- Los Indios Jan 9 · Jan 3
- Combes Jan 9 · Jan 3
Frequently asked questions
When is the last frost in Los Fresnos, TX?
The median last spring frost in Los Fresnos, TX is January 8. There is still about a 10% chance of frost after February 7, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Los Fresnos, TX?
The median first fall frost is January 4, with about a 10% chance of frost before December 10.
How long is the growing season in Los Fresnos, TX?
About 361 days between the median last spring frost and first fall frost.
What planting zone is Los Fresnos, TX?
Los Fresnos, TX is in USDA hardiness zone 10a.