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, TX

ZIP 78540 — 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 78540

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 High (composite score 99.0), which is among the highest nationally. The strongest component scores on US5 are hurricane (99.5) and flood (96.4). 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 High
Risk index
99.0
Flood risk
96.4
Wildfire risk
83.8
Hurricane risk
99.5
Earthquake risk
79.0
Tornado risk
96.0
Winter weather risk
95.7
Hail risk
99.2
Air Quality (EPA AQI)

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

54
Median AQI
36.2%
Good Days

Air quality healthy to breathe

1.6%
Unhealthy / Hazardous

Sensitive groups or worse

Climate & Weather in ZIP Code 78540

Climate normals for TX show limited published climate normals on US5. 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

No monthly temperature data

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

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone9b
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively High
NRI risk index99.0
Flood risk (NRI)96.4
Wildfire risk (NRI)83.8
Hurricane risk (NRI)99.5
Median AQI54
Good AQI days36.2%