When Is the Last Frost?

Frost dates for 33434 — Boca Raton, FL

Last spring frostJan 22median date
First fall frostJan 17median date
Growing season360 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 Boca Raton compares

Frost probability

Last spring frost
Chance of frost afterDate
90% (early)December 31
50% (median)January 22
10% (safe for tender plants)February 7
First fall frost
Chance of frost beforeDate
10% (early)December 31
50% (median)January 17
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

Boca Raton, 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 Loxahatchee Nwr, FL weather station, 13 km away (elevation 20 ft (6 m)).

ZIP codes in Boca Raton: 33427 33428 33429 33431 33432 33433 33434 33464 33481 33486 33487 33488 33496 33497 33498 33499

Frost dates near Boca Raton

Frequently asked questions

When is the last frost in Boca Raton, FL?

The median last spring frost in Boca Raton, FL is January 22. 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 Boca Raton, FL?

The median first fall frost is January 17, with about a 10% chance of frost before December 31.

How long is the growing season in Boca Raton, FL?

About 360 days between the median last spring frost and first fall frost.

What planting zone is Boca Raton, FL?

Boca Raton, FL is in USDA hardiness zone 10b.

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