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Port St. Lucie, FL

Earthquake hazard, typical weather and growing season from public federal data. Population 171,016.

Flood zone: it depends on the exact parcel

There is no such thing as a flood zone for a whole city. Two houses on the same street can sit in different zones, and it is the single fact here that changes most over a short distance. So this page does not guess one.

Look up a specific Port St. Lucie address →

Earthquake hazard very-low

Design category A

Very low seismic hazard. Damaging earthquakes are rare at this location and design ground motions are minimal. Ordinary buildings carry essentially no special seismic-detailing requirement. The ASCE 7 Seismic Design Category here is A. (Short-period design value Ss ≈ 0.049 g — the standard headline measure of ground-shaking hazard.)

USGS Seismic Design Web Services (ASCE 7), assuming Site Class D — stiff or unknown soil. Real soil conditions can move the category either way.

Typical weather

89.2° in July, 53° in January

Thirty-year averages, not a forecast. Any individual year can differ substantially.

MonthHighLowRainSnow
Jan72.4°53°3.04"0"
Feb74.3°55.4°2.8"0"
Mar77°58.5°3.03"0"
Apr80.8°63.9°3.62"0"
May84.4°69°4.2"0"
Jun87.6°72.9°6.22"0"
Jul89.2°74.1°6.19"0"
Aug89.2°74.6°7.25"0"
Sep87.5°74°8.21"0"
Oct83.8°69.6°5.72"0"
Nov78.3°62.2°3.2"0"
Dec74.4°56.5°2.41"0"

NOAA/NCEI 1991–2020 U.S. Climate Normals — station FT PIERCE, FL US, 8.1 mi away.

Growing season zone 10a

365 frost-free days

Last spring frost around n/a, first fall frost around n/a. Roughly half of years see frost outside that window.

2023 USDA Plant Hardiness Zone Map and NOAA/NCEI 1991–2020 frost normals.

What this page does not tell you

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