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Clayton CDP, WA

ZIP 99110 — 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 99110

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 Clayton CDP, WA as Relatively Low (composite score 60.3), which is near the middle of the national distribution. The strongest component scores on US5 are wildfire (96.5) and flood (68.6). 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 Low
Risk index
60.3
Flood risk
68.6
Wildfire risk
96.5
Earthquake risk
43.0
Tornado risk
12.5
Winter weather risk
62.6
Hail risk
7.4
Air Quality (EPA AQI)

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

27
Median AQI
81.1%
Good Days

Air quality healthy to breathe

0.4%
Unhealthy / Hazardous

Sensitive groups or worse

Climate & Weather in ZIP Code 99110

Climate normals for Clayton CDP, WA show little to no average snow and around 22.5 inches of annual precipitation. Pair that with FEMA NRI hazard context (overall rating Relatively Low) 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
6a
Annual Snow Days
0
Annual Precipitation
22.52 in
FEMA NRI rating
Relatively Low

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone6a
Annual precip (in)22.52
Snow days0
Broadband access80.3%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Low
NRI risk index60.3
Flood risk (NRI)68.6
Wildfire risk (NRI)96.5
IRS net migration86
Median AQI27
Good AQI days81.1%