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Vallejo city, CA
ZIP 94591 — Climate & Environment
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Upper Middle ClassLarge CommunityLow Snow Area
Climate, disaster risk, air quality, and environmental safety
Environment & Risk in ZIP Code 94591
Climate & Weather in ZIP Code 94591
Climate normals for Vallejo city, CA show little to no average snow and around 21.5 inches of annual precipitation. Pair that with FEMA NRI hazard context (overall rating Relatively High) when evaluating long-term housing and insurance exposure.
Climate & Environment key statistics
| Climate | |
|---|---|
| Hardiness zone | 9b |
| Annual precip (in) | 21.49 |
| Snow days | 0 |
| Broadband access | 93.8% |
| Risk & Air Quality | |
|---|---|
| NRI rating | Relatively High |
| NRI risk index | 97.0 |
| Flood risk (NRI) | 97.4 |
| Wildfire risk (NRI) | 94.5 |
| IRS net migration | 2880 |
| Median AQI | 34 |
| Good AQI days | 98.9% |