District of Columbia ice storm risk
District of Columbia has the highest ice storm risk in District of Columbia, scoring 70.2 out of 100 — rated "Relatively Moderate" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
|---|---|---|---|
| 1 | District of Columbia | 70.2 | Relatively Moderate |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Ice Storm risk nationally:
Other hazard risks in District of Columbia:
Frequently asked questions
What is the highest ice storm risk county in District of Columbia?
District of Columbia, DC has the highest ice storm risk in District of Columbia, with a FEMA National Risk Index score of 70.2 out of 100 (rated "Relatively Moderate").
What causes ice storm risk in District of Columbia?
Ice storm risk covers damaging freezing rain and sleet accumulation, which collapses power lines, trees, and structures. The highest-risk counties cluster in a band from eastern Texas and Arkansas through the Carolinas and New England, where warm Gulf moisture overruns cold arctic air most frequently. Ice storms cause catastrophic and long-lasting power outages. Ice storm and sleet events are reported at forecast-zone level in NOAA Storm Events and are not included in county-level counts.