Port Salerno, FL frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 0 a year). Cover tender plants when frost is forecast.
How Port Salerno compares
- In a typical year, frost nights in Port Salerno fall between January 18 and January 23. In 1 year in 10 the first frost comes as early as January 1, or the last frost as late as February 10.
- Compared with Jupiter, FL, 24 km away, the last frost here is 3 days earlier than there.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 4 |
| 50% (median) | January 23 |
| 10% (safe for tender plants) | February 10 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | January 1 |
| 50% (median) | January 18 |
| 90% (late) | February 9 |
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 Salerno, 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 Stuart, FL weather station, 6 km away (elevation 13 ft (4 m)).
Frost dates near Port Salerno
- Stuart Jan 23 · Jan 18
- Palm City Jan 23 · Jan 18
- Hobe Sound Jan 26 · Jan 15
- Jensen Beach rare frost
- Jupiter Jan 26 · Jan 16
- Port Saint Lucie Jan 22 · Jan 12
- Indiantown Jan 26 · Jan 15
- Fort Pierce Jan 22 · Jan 12
- Palm Beach Gardens Jan 21 · Jan 15
- North Palm Beach Jan 26 · Jan 16
Frequently asked questions
When is the last frost in Port Salerno, FL?
The median last spring frost in Port Salerno, FL is January 23. There is still about a 10% chance of frost after February 10, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Port Salerno, FL?
The median first fall frost is January 18, with about a 10% chance of frost before January 1.
How long is the growing season in Port Salerno, FL?
About 360 days between the median last spring frost and first fall frost.
What planting zone is Port Salerno, FL?
Port Salerno, FL is in USDA hardiness zone 10b.