Gilroy, CA
Local storm history & FEMA National Risk Index data
Gilroy is rated Very High for overall natural hazard risk — among the most at-risk counties in the country — based on FEMA's National Risk Index for Santa Clara County, CA. The county's highest-rated hazards are earthquake, inland flooding, and landslide.
Storm events near Gilroy
NOAA-recorded tornado, hail, and flood events within 25 miles of Gilroy's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Gilroy itself, not the whole county.
County-wide hazard risk
Every other hazard FEMA and NOAA track — including drought — is only scored at the county level. These are Santa Clara County's FEMA National Risk Index scores, covering Gilroy along with the rest of the county, not a Gilroy-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 97.4 | Relatively Moderate |
| Inland Flooding | 99.8 | Very High |
| Coastal Flooding | 88.8 | Relatively High |
| Earthquake | 99.9 | Very High |
| Heat Wave | 98.6 | Relatively High |
| Tornado | 55.8 | Relatively Low |
| Avalanche | 13 | Very Low |
| Cold Wave | 0 | No Rating |
| Drought | 99.2 | Relatively High |
| Hail | 37.5 | Relatively Low |
| Hurricane | — | Not Applicable |
| Ice Storm | — | Not Applicable |
| Landslide | 99.7 | Relatively High |
| Lightning | 46.9 | Relatively Low |
| Strong Wind | 9.4 | Very Low |
| Tsunami | 18.5 | Very Low |
| Volcanic Activity | 15 | Very Low |
| Winter Weather | 3.1 | Very Low |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Santa Clara County risk profile for disaster declarations, social vulnerability, and climate projection data.
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Frequently asked questions
What natural hazards is Gilroy, CA at risk of?
Gilroy is rated Very High for overall natural hazard risk by FEMA's National Risk Index — among the most at-risk counties in the country. The highest-rated hazards for Santa Clara County, where Gilroy is located, are earthquake, inland flooding, and landslide.
What is Gilroy's biggest natural hazard risk?
Earthquake is the highest-rated hazard for Santa Clara County, where Gilroy is located, scoring 99.9 out of 100 on FEMA's National Risk Index (rated "Very High").
Is Gilroy a high-risk area for natural disasters?
Yes — Gilroy carries among the most at-risk counties in the country for overall natural hazard risk, per FEMA's National Risk Index rating of "Very High" for Santa Clara County.
Has Gilroy had tornadoes, hail, or flooding?
NOAA has recorded 4 tornado, 30 hail, 136 inland flooding events within 25 miles of Gilroy since 2016.