Chillicothe, OH
Local storm history & FEMA National Risk Index data
Chillicothe is rated Relatively Low for overall natural hazard risk — lower risk than most US counties — based on FEMA's National Risk Index for Ross County, OH. The county's highest-rated hazards are landslide, lightning, and heat wave.
Storm events near Chillicothe
NOAA-recorded tornado, hail, and flood events within 25 miles of Chillicothe's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Chillicothe 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 Ross County's FEMA National Risk Index scores, covering Chillicothe along with the rest of the county, not a Chillicothe-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 48.5 | Very Low |
| Inland Flooding | 74.5 | Relatively Moderate |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 53.8 | Very Low |
| Heat Wave | 78 | Relatively Low |
| Tornado | 56.3 | Relatively Low |
| Avalanche | — | Not Applicable |
| Cold Wave | 26 | Relatively Low |
| Drought | 68.9 | Relatively Moderate |
| Hail | 59.7 | Relatively Low |
| Hurricane | 35.5 | Very Low |
| Ice Storm | 77.3 | Relatively Moderate |
| Landslide | 93.4 | Relatively Moderate |
| Lightning | 93 | Relatively High |
| Strong Wind | 57.9 | Relatively Moderate |
| Tsunami | — | Not Applicable |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 59.5 | Relatively Low |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Ross County risk profile for disaster declarations, social vulnerability, and climate projection data.
More on Ross County:
Frequently asked questions
What natural hazards is Chillicothe, OH at risk of?
Chillicothe is rated Relatively Low for overall natural hazard risk by FEMA's National Risk Index — lower risk than most US counties. The highest-rated hazards for Ross County, where Chillicothe is located, are landslide, lightning, and heat wave.
What is Chillicothe's biggest natural hazard risk?
Landslide is the highest-rated hazard for Ross County, where Chillicothe is located, scoring 93.4 out of 100 on FEMA's National Risk Index (rated "Relatively Moderate").
Is Chillicothe a high-risk area for natural disasters?
No — Chillicothe carries lower risk than most US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Low" for Ross County.
Has Chillicothe had tornadoes, hail, or flooding?
NOAA has recorded 19 tornado, 30 hail, 194 inland flooding events within 25 miles of Chillicothe since 2016.