Dewey County, Oklahoma: hazard risk
FEMA rates Dewey County's overall risk Very Low (score 15.6 of 100, higher than 15% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by ice storm. Its storm record holds 951 events since 1950.
FEMA's rating for each hazard
These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.
FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Ice Storm | Relatively High | 94.6 | $1.5M |
| Drought | Relatively Moderate | 86.3 | $1.2M |
| Wildfire | Relatively Low | 73.6 | $215K |
| Strong Wind | Relatively Low | 43.2 | $423K |
| Hail | Relatively Low | 39.3 | $162K |
| Tornado | Relatively Low | 39.1 | $769K |
| Cold Wave | Relatively Low | 38.3 | $582K |
| Winter Weather | Relatively Low | 25.7 | $23K |
| Landslide | Very Low | 54.5 | $2K |
| Heat Wave | Very Low | 26.7 | $103K |
| Earthquake | Very Low | 23.3 | $35K |
| Hurricane | Very Low | 11.9 | $2K |
| Riverine Flooding | Very Low | 5.7 | $753K |
| Lightning | Very Low | 1.7 | $6K |
Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.
What the record holds
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| Hail | 336 | 0 | $304K | 56th of 77 | 481st of 3,080 |
| Severe thunderstorm wind | 243 | 0 | $692K | 64th of 77 | 1915th of 3,080 |
| Drought | 116 | 0 | $14M | 32nd of 77 | 206th of 3,063 |
| Winter storms | 71 | 0 | $42M | 25th of 77 | 1981st of 3,077 |
| High wind and dust storms | 61 | 0 | $40K | 7th of 77 | 975th of 3,080 |
| Tornadoes | 54 | 0 | $3.4M | 57th of 77 | 766th of 3,080 |
| Heat | 35 | 0 | – | 65th of 77 | 695th of 3,076 |
| Extreme cold | 10 | 0 | – | 46th of 77 | 1761st of 3,076 |
| Floods | 10 | 0 | – | 72nd of 77 | 2764th of 3,080 |
| Wildfires | 6 | 1 | $861K | 37th of 77 | 440th of 2,972 |
| Heavy rain | 4 | 0 | – | 19th of 77 | 1922nd of 3,080 |
| Lightning | 1 | 0 | $3K | 65th of 77 | 2246th of 3,080 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Dewey County record: every hazard by year and month, the deadliest events and FEMA's declarations.