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, TX

ZIP 77431 — Climate & Environment

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

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 77431

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 TX as Relatively Moderate (composite score 93.6), which is among the highest nationally. The strongest component scores on US5 are hurricane (96.9) and flood (94.4). 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 Moderate
Risk index
93.6
Flood risk
94.4
Wildfire risk
86.1
Hurricane risk
96.9
Earthquake risk
46.0
Tornado risk
97.0
Winter weather risk
22.4
Hail risk
60.1
Air Quality (EPA AQI)

County-level annual air quality from EPA. Good days = healthy to breathe; unhealthy = sensitive groups or worse.

33
Median AQI
84.8%
Good Days

Air quality healthy to breathe

0.8%
Unhealthy / Hazardous

Sensitive groups or worse

Climate & Weather in ZIP Code 77431

Climate normals for TX show limited published climate normals on US5. Pair that with FEMA NRI hazard context (overall rating Relatively Moderate) 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

No monthly temperature data

Climate Data
Hardiness Zone
9b
Annual Snow Days
N/A
Annual Precipitation
N/A
FEMA NRI rating
Relatively Moderate

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone9b
Broadband access0.0%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Moderate
NRI risk index93.6
Flood risk (NRI)94.4
Wildfire risk (NRI)86.1
Hurricane risk (NRI)96.9
IRS net migration10
Median AQI33
Good AQI days84.8%