Patterson, CA
Local storm history & FEMA National Risk Index data
Patterson is rated Relatively High for overall natural hazard risk — higher risk than most US counties — based on FEMA's National Risk Index for Stanislaus County, CA. The county's highest-rated hazards are drought, earthquake, and heat wave.
Storm events near Patterson
NOAA-recorded tornado, hail, and flood events within 25 miles of Patterson's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Patterson 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 Stanislaus County's FEMA National Risk Index scores, covering Patterson along with the rest of the county, not a Patterson-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 95 | Relatively Moderate |
| Inland Flooding | 96 | Relatively High |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 98.5 | Relatively High |
| Heat Wave | 96.3 | Relatively Moderate |
| Tornado | 27.8 | Relatively Low |
| Avalanche | 5.7 | Very Low |
| Cold Wave | 0 | No Rating |
| Drought | 99.8 | Very High |
| Hail | 52.2 | Relatively Low |
| Hurricane | — | Not Applicable |
| Ice Storm | — | Not Applicable |
| Landslide | 86.7 | Relatively Low |
| Lightning | 91 | Relatively High |
| Strong Wind | 28.3 | Relatively Low |
| Tsunami | — | Not Applicable |
| Volcanic Activity | 78.2 | Very Low |
| Winter Weather | 36.8 | Relatively Low |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Stanislaus County risk profile for disaster declarations, social vulnerability, and climate projection data.
Other cities in Stanislaus County:
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Frequently asked questions
What natural hazards is Patterson, CA at risk of?
Patterson is rated Relatively High for overall natural hazard risk by FEMA's National Risk Index — higher risk than most US counties. The highest-rated hazards for Stanislaus County, where Patterson is located, are drought, earthquake, and heat wave.
What is Patterson's biggest natural hazard risk?
Drought is the highest-rated hazard for Stanislaus County, where Patterson is located, scoring 99.8 out of 100 on FEMA's National Risk Index (rated "Very High").
Is Patterson a high-risk area for natural disasters?
Yes — Patterson carries higher risk than most US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively High" for Stanislaus County.
Has Patterson had tornadoes, hail, or flooding?
NOAA has recorded 2 tornado, 42 inland flooding events within 25 miles of Patterson since 2016.