Tornado Risk in Colorado
All Colorado counties ranked by FEMA National Risk Index tornado score
Tornado risk — violently rotating columns of air capable of catastrophic local damage — is rated for 64 of 64 Colorado counties in FEMA's National Risk Index. Denver County carries the state's highest tornado score at 97.9, with $28M in expected annual tornado losses.
9 Colorado counties are rated High or Very High for tornado, and expected annual losses from tornado total roughly $188M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Tornado
| # | County | Tornado Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Denver County | High | 0.16 / yr | $28M | |
| 2 | Arapahoe County | High | 1.06 / yr | $22M | |
| 3 | El Paso County | High | 1.48 / yr | $25M | |
| 4 | Jefferson County | High | 0.56 / yr | $22M | |
| 5 | Weld County | High | 4.20 / yr | $16M | |
| 6 | Adams County | High | 1.53 / yr | $13M | |
| 7 | Douglas County | High | 0.75 / yr | $14M | |
| 8 | Boulder County | High | 0.52 / yr | $12M | |
| 9 | Larimer County | High | 1.30 / yr | $11M | |
| 10 | Logan County | Medium | 1.82 / yr | $2M | |
| 11 | Pueblo County | Medium | 0.73 / yr | $3M | |
| 12 | Morgan County | Medium | 1.79 / yr | $3M | |
| 13 | Broomfield County | Low | 0.03 / yr | $3M | |
| 14 | Kit Carson County | Low | 2.30 / yr | $2M | |
| 15 | Elbert County | Low | 2.17 / yr | $2M | |
| 16 | Yuma County | Low | 2.43 / yr | $1M | |
| 17 | Prowers County | Low | 1.22 / yr | $492K | |
| 18 | Otero County | Low | 0.45 / yr | $446K | |
| 19 | Phillips County | Low | 0.60 / yr | $786K | |
| 20 | Washington County | Low | 3.16 / yr | $481K | |
| 21 | Fremont County | Low | 0.31 / yr | $441K | |
| 22 | Teller County | Low | 0.26 / yr | $621K | |
| 23 | Baca County | Low | 1.28 / yr | $235K | |
| 24 | Grand County | Very Low | 0.34 / yr | $490K | |
| 25 | Lincoln County | Very Low | 2.62 / yr | $427K | |
| 26 | Sedgwick County | Very Low | 0.44 / yr | $327K | |
| 27 | Summit County | Very Low | 0.07 / yr | $382K | |
| 28 | Bent County | Very Low | 0.81 / yr | $284K | |
| 29 | Park County | Very Low | 0.64 / yr | $310K | |
| 30 | Clear Creek County | Very Low | 0.21 / yr | $300K | |
| 31 | Mesa County | Very Low | 0.10 / yr | $199K | |
| 32 | Alamosa County | Very Low | 0.05 / yr | $109K | |
| 33 | La Plata County | Very Low | 0.04 / yr | $181K | |
| 34 | Gilpin County | Very Low | 0.09 / yr | $203K | |
| 35 | Kiowa County | Very Low | 1.46 / yr | $182K | |
| 36 | Cheyenne County | Very Low | 1.74 / yr | $174K | |
| 37 | Crowley County | Very Low | 0.45 / yr | $111K | |
| 38 | Eagle County | Very Low | 0.05 / yr | $178K | |
| 39 | Las Animas County | Very Low | 0.95 / yr | $104K | |
| 40 | Rio Grande County | Very Low | 0.05 / yr | $73K | |
| 41 | Chaffee County | Very Low | 0.06 / yr | $125K | |
| 42 | Huerfano County | Very Low | 0.21 / yr | $60K | |
| 43 | Montezuma County | Very Low | 0.05 / yr | $53K | |
| 44 | Archuleta County | Very Low | 0.05 / yr | $45K | |
| 45 | Conejos County | Very Low | 0.07 / yr | $38K | |
| 46 | Garfield County | Very Low | 0.08 / yr | $68K | |
| 47 | Montrose County | Very Low | 0.05 / yr | $53K | |
| 48 | Delta County | Very Low | 0.03 / yr | $44K | |
| 49 | Lake County | Very Low | 0.02 / yr | $65K | |
| 50 | Saguache County | Very Low | 0.20 / yr | $37K | |
| 51 | Custer County | Very Low | 0.11 / yr | $60K | |
| 52 | Costilla County | Very Low | 0.12 / yr | $20K | |
| 53 | Pitkin County | Very Low | 0.02 / yr | $49K | |
| 54 | Gunnison County | Very Low | 0.07 / yr | $41K | |
| 55 | Routt County | Very Low | 0.05 / yr | $21K | |
| 56 | Rio Blanco County | Very Low | 0.10 / yr | $10K | |
| 57 | San Miguel County | Very Low | 0.02 / yr | $13K | |
| 58 | Jackson County | Very Low | 0.10 / yr | $9K | |
| 59 | Dolores County | Very Low | 0.02 / yr | $5K | |
| 60 | Moffat County | Very Low | 0.13 / yr | $7K | |
| 61 | Ouray County | Very Low | 0.01 / yr | $7K | |
| 62 | Mineral County | Very Low | 0.04 / yr | $6K | |
| 63 | San Juan County | Very Low | 0.01 / yr | $2K | |
| 64 | Hinsdale County | Very Low | 0.03 / yr | $2K |
64 Colorado counties with measurable tornado risk. See the national tornado ranking or all Colorado counties by overall risk.
Frequently Asked Questions
Which Colorado county has the highest tornado risk?
Denver County has the highest FEMA tornado risk score in Colorado at 97.9 (High), with $28M in expected annual losses and about 0.16 events per year.
How many Colorado counties face significant tornado risk?
64 Colorado counties record measurable tornado risk in FEMA's National Risk Index; 9 of them are rated High or Very High.