Frost dates for 33709 — Saint Petersburg, FL
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 Saint Petersburg compares
- In a typical year, frost nights in Saint Petersburg fall between January 14 and January 17. In 1 year in 10 the first frost comes as early as December 27, or the last frost as late as February 6.
- Saint Petersburg shares its weather station with Pinellas Park, FL, 5 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 1 |
| 50% (median) | January 17 |
| 10% (safe for tender plants) | February 6 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 27 |
| 50% (median) | January 14 |
| 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
Saint Petersburg, 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 St Petersburg Intl Ap, FL weather station, 11 km away (elevation 10 ft (3 m)).
ZIP codes in Saint Petersburg: 33701 33702 33703 33704 33705 33706 33707 33708 33709 33710 33711 33712 33713 33714 33715 33716 33729 33730 33731 33732 33733 33734 33736 33737 33738 33740 33741 33742 33743 33747 33784
Frost dates near Saint Petersburg
- Bay Pines Jan 17 · Jan 14
- Pinellas Park Jan 17 · Jan 14
- Seminole Jan 17 · Jan 14
- Largo Jan 17 · Jan 14
- Clearwater Jan 17 · Jan 14
- Indian Rocks Beach Jan 17 · Jan 14
- Belleair Beach Jan 17 · Jan 14
- Dunedin Jan 17 · Jan 14
Frequently asked questions
When is the last frost in Saint Petersburg, FL?
The median last spring frost in Saint Petersburg, FL is January 17. There is still about a 10% chance of frost after February 6, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Saint Petersburg, FL?
The median first fall frost is January 14, with about a 10% chance of frost before December 27.
How long is the growing season in Saint Petersburg, FL?
About 362 days between the median last spring frost and first fall frost.
What planting zone is Saint Petersburg, FL?
Saint Petersburg, FL is in USDA hardiness zone 10b.