Address reportCitiesFlorida › West Palm Beach

West Palm Beach, FL

Earthquake hazard, typical weather and growing season from public federal data. Population 102,436.

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 West Palm Beach 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 ≈ 0.045 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

90° in July, 57.9° in January

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

MonthHighLowRain
Jan74.7°57.9°3.47"
Feb76.7°60.1°2.63"
Mar79.2°63°3.31"
Apr82.2°67.5°3.68"
May85.7°71.7°4.91"
Jun88.3°75°8.48"
Jul90°76.1°5.63"
Aug89.9°76.5°8.68"
Sep88°75.8°7.96"
Oct84.7°72.6°5.9"
Nov80°66.1°3.62"
Dec76.5°61.5°3.48"

This station records temperature and precipitation but not snowfall, so no snow column is shown. That is missing data, not a report of zero snow — West Palm Beach may well get plenty.

NOAA/NCEI 1991–2020 U.S. Climate Normals — station WEST PALM BEACH INTL AP, FL US, 2.9 mi away.

Growing season zone 10b

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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