When Is the Last Frost?

Frost dates for 33712 — Saint Petersburg, FL

Last spring frostJan 17median date
First fall frostJan 15median date
Growing season363 daysfrost-free
Hardiness zone10bZone 10b

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

Frost probability

Last spring frost
Chance of frost afterDate
90% (early)December 31
50% (median)January 17
10% (safe for tender plants)February 5
First fall frost
Chance of frost beforeDate
10% (early)December 23
50% (median)January 15
90% (late)February 5

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:

About these dates

Based on 1991–2020 NOAA climate normals for the St Petersburg, FL weather station, 5 km away (elevation 7 ft (2 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

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 5, 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 15, with about a 10% chance of frost before December 23.

How long is the growing season in Saint Petersburg, FL?

About 363 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.

Check another location