Lewiston, ID
Local storm history & FEMA National Risk Index data
Lewiston is rated Very Low for overall natural hazard risk — among the lowest-risk counties in the country — based on FEMA's National Risk Index for Nez Perce County, ID. The county's highest-rated hazards are wildfire, avalanche, and inland flooding.
Storm events near Lewiston
NOAA-recorded tornado, hail, and flood events within 25 miles of Lewiston's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Lewiston 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 Nez Perce County's FEMA National Risk Index scores, covering Lewiston along with the rest of the county, not a Lewiston-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 89.3 | Relatively Moderate |
| Inland Flooding | 57.7 | Relatively Low |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 38.3 | Very Low |
| Heat Wave | 56.1 | Relatively Low |
| Tornado | 7.5 | Very Low |
| Avalanche | 66.1 | Very Low |
| Cold Wave | 19.3 | Very Low |
| Drought | 15.6 | Very Low |
| Hail | 8.3 | Very Low |
| Hurricane | — | Not Applicable |
| Ice Storm | 7.1 | Very Low |
| Landslide | 42.5 | Very Low |
| Lightning | 8.9 | Very Low |
| Strong Wind | 8.1 | Very Low |
| Tsunami | — | Not Applicable |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 5.5 | Very Low |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Nez Perce County risk profile for disaster declarations, social vulnerability, and climate projection data.
More on Nez Perce County:
Frequently asked questions
What natural hazards is Lewiston, ID at risk of?
Lewiston is rated Very Low for overall natural hazard risk by FEMA's National Risk Index — among the lowest-risk counties in the country. The highest-rated hazards for Nez Perce County, where Lewiston is located, are wildfire, avalanche, and inland flooding.
What is Lewiston's biggest natural hazard risk?
Wildfire is the highest-rated hazard for Nez Perce County, where Lewiston is located, scoring 89.3 out of 100 on FEMA's National Risk Index (rated "Relatively Moderate").
Is Lewiston a high-risk area for natural disasters?
No — Lewiston carries among the lowest-risk counties in the country for overall natural hazard risk, per FEMA's National Risk Index rating of "Very Low" for Nez Perce County.
Has Lewiston had tornadoes, hail, or flooding?
NOAA has recorded 8 hail, 36 inland flooding events within 25 miles of Lewiston since 2016.