Frost dates for 34987 — Port Saint Lucie, FL
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 Port Saint Lucie compares
- In a typical year, frost nights in Port Saint Lucie fall between January 12 and January 22. In 1 year in 10 the first frost comes as early as December 20, or the last frost as late as February 27.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 26 |
| 50% (median) | January 22 |
| 10% (safe for tender plants) | February 27 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 20 |
| 50% (median) | January 12 |
| 90% (late) | February 12 |
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
Port Saint Lucie, FL 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 Ft Pierce, FL weather station, 24 km away (elevation 26 ft (8 m)).
ZIP codes in Port Saint Lucie: 34952 34953 34983 34984 34985 34986 34987 34988
Frost dates near Port Saint Lucie
- Fort Pierce Jan 22 · Jan 12
- Palm City Jan 23 · Jan 18
- Indiantown Jan 26 · Jan 15
- Jensen Beach rare frost
- Stuart Jan 23 · Jan 18
- Port Salerno Jan 23 · Jan 18
- Okeechobee Jan 31 · Jan 11
- Hobe Sound Jan 26 · Jan 15
Frequently asked questions
When is the last frost in Port Saint Lucie, FL?
The median last spring frost in Port Saint Lucie, FL is January 22. There is still about a 10% chance of frost after February 27, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Port Saint Lucie, FL?
The median first fall frost is January 12, with about a 10% chance of frost before December 20.
How long is the growing season in Port Saint Lucie, FL?
About 355 days between the median last spring frost and first fall frost.
What planting zone is Port Saint Lucie, FL?
Port Saint Lucie, FL is in USDA hardiness zone 10a.