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Port Royal town, SC

ZIP 29902 — Climate & Environment

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 29902

Disaster Risk (FEMA NRI)

County-linked natural hazard risk from FEMA National Risk Index — useful for comparing insurance and disaster exposure.

FEMA’s National Risk Index rates natural-hazard risk for Port Royal town, SC as Relatively High (composite score 97.1), which is among the highest nationally. The strongest component scores on US5 are hurricane (99.5) and wildfire (90.3). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Overall rating
Relatively High
Risk index
97.1
Flood risk
80.8
Wildfire risk
90.3
Hurricane risk
99.5
Earthquake risk
93.6
Tornado risk
82.0
Winter weather risk
69.9
Hail risk
68.6

Climate & Weather in ZIP Code 29902

Climate normals for Port Royal town, SC show little to no average snow. Pair that with FEMA NRI hazard context (overall rating Relatively High) when evaluating long-term housing and insurance exposure.

7-day weather forecast

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Sunrise, sunset & moon

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Monthly Temperature

30-year climate normals (avg. monthly temperature)

Climate Data
Hardiness Zone
9a
Annual Snow Days
0
Annual Precipitation
0 in
FEMA NRI rating
Relatively High

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone9a
Annual precip (in)0
Snow days0
Broadband access90.0%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively High
NRI risk index97.1
Flood risk (NRI)80.8
Wildfire risk (NRI)90.3
Hurricane risk (NRI)99.5
IRS net migration676