San Francisco, CA
Local storm history & FEMA National Risk Index data
San Francisco 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 San Francisco County, CA. The county's highest-rated hazards are earthquake, inland flooding, and landslide.
Storm events near San Francisco
NOAA-recorded tornado, hail, and flood events within 25 miles of San Francisco's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to San Francisco 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 San Francisco County's FEMA National Risk Index scores, covering San Francisco along with the rest of the county, not a San Francisco-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 28.7 | Very Low |
| Inland Flooding | 98.6 | Relatively High |
| Coastal Flooding | 62 | Relatively Moderate |
| Earthquake | 99.8 | Very High |
| Heat Wave | 93.9 | Relatively Moderate |
| Tornado | 34.9 | Relatively Low |
| Avalanche | — | Not Applicable |
| Cold Wave | 0 | No Rating |
| Drought | 69.3 | Relatively Moderate |
| Hail | 18.1 | Very Low |
| Hurricane | — | Not Applicable |
| Ice Storm | — | Not Applicable |
| Landslide | 98.4 | Relatively High |
| Lightning | 29.9 | Relatively Low |
| Strong Wind | 10.3 | Very Low |
| Tsunami | 72.3 | Relatively Moderate |
| Volcanic Activity | 28.3 | Very Low |
| Winter Weather | 1.2 | Very Low |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full San Francisco County risk profile for disaster declarations, social vulnerability, and climate projection data.
More on San Francisco County:
Frequently asked questions
What natural hazards is San Francisco, CA at risk of?
San Francisco 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 San Francisco County, where San Francisco is located, are earthquake, inland flooding, and landslide.
What is San Francisco's biggest natural hazard risk?
Earthquake is the highest-rated hazard for San Francisco County, where San Francisco is located, scoring 99.8 out of 100 on FEMA's National Risk Index (rated "Very High").
Is San Francisco a high-risk area for natural disasters?
Yes — San Francisco 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 San Francisco County.
Has San Francisco had tornadoes, hail, or flooding?
NOAA has recorded 1 hail, 1 inland flooding events within 25 miles of San Francisco since 2016.