Frost dates in Port St. Lucie, Florida

NOAA 1991–2020 normals for a 32 °F freeze. Low spots and the edge of town run colder than downtown.

Short answer

Frost is too rare in Port St. Lucie to put a date on: at NOAA's Nettles Is station, 10 miles from the middle of Port St. Lucie, it hit 32 °F in fewer than 1 year in 10. 4 nearby stations do, listed below. Port St. Lucie is in USDA planting zone 10a.

Weather stations around Port St. Lucie

The first row is the date most people in Port St. Lucie go by. The others show how far the dates move across the area.

Station	Last spring frost	First fall frost	Frost-free
Nettles Is 10 mi away, 10 ft	Frost too rare to date (32 °F in under 1 year in 10)
Stuart 11 mi away, 13 ft	January 23 1 in 10 after February 10	January 18 1 in 10 by January 1	360 days
Ft Pierce 11 mi away, 25 ft	January 22 1 in 10 after February 27	January 12 1 in 10 by December 20	355 days
Port Salerno 5W 15 mi away, 12 ft	January 26 1 in 10 after February 18	January 15 1 in 10 by December 26	354 days
Ft Pierce St Lucie Co Intl Airport 15 mi away, 24 ft	January 24 1 in 10 after February 21	January 14 1 in 10 by December 23	355 days

Distances are from the middle of Port St. Lucie as the Census Bureau maps it. The average date is NOAA's 50% date: half of years have a later last frost, or an earlier first one. Plan by the 1-in-10 date if a freeze would cost you plants. The planting zone is the USDA 2023 zone for ZIP code 34953, at the middle of the city.

Your exact ZIP code

Port St. Lucie covers a lot of ground. For the station nearest your own street, and its planting zone, type your ZIP code.

How these dates work

Frost dates come from NOAA's 1991 to 2020 Climate Normals, which work out from each weather station's daily lows how likely the last spring freeze and the first fall freeze (32 °F) are by each date. We use the station nearest the middle of your ZIP code and show its height and distance, since a station on a hill or by a lake can differ from your yard.

The average date is the 50% date: half of years have a freeze after the spring date or before the fall one. The 1-in-10 dates are NOAA's 10% dates, the ones to plan by if a late freeze would cost you plants. Within one yard, cold air pools in low spots while walls and paving hold heat, so some corners freeze before others.

More frost dates

All of Florida, station by station.

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