- Home
- States
- Washington
- ZIP 98611
- Climate & Environment
Castle Rock city, WA
ZIP 98611 — 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 98611
Climate & Weather in ZIP Code 98611
Climate normals for Castle Rock city, WA show little to no average snow and around 48.1 inches of annual precipitation. Pair that with FEMA NRI hazard context (overall rating Relatively Moderate) when evaluating long-term housing and insurance exposure.
Climate & Environment key statistics
| Climate | |
|---|---|
| Hardiness zone | 8b |
| Annual precip (in) | 48.12 |
| Snow days | 0 |
| Broadband access | 89.6% |
| Risk & Air Quality | |
|---|---|
| NRI rating | Relatively Moderate |
| NRI risk index | 90.3 |
| Flood risk (NRI) | 88.3 |
| Wildfire risk (NRI) | 61.3 |
| IRS net migration | 503 |
| Median AQI | 21 |
| Good AQI days | 91.6% |