Cold Wave Risk in Oregon
All Oregon counties ranked by FEMA National Risk Index cold wave score
Cold Wave risk — prolonged spells of dangerously low temperatures — is rated for 34 of 36 Oregon counties in FEMA's National Risk Index. Clackamas County carries the state's highest cold wave score at 95.2, with $15M in expected annual cold wave losses.
4 Oregon counties are rated High or Very High for cold wave, and expected annual losses from cold wave total roughly $57M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Cold Wave
| # | County | Cold Wave Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Clackamas County | High | 0.38 / yr | $15M | |
| 2 | Umatilla County | High | 0.26 / yr | $9M | |
| 3 | Multnomah County | High | 0.32 / yr | $9M | |
| 4 | Washington County | High | 0.23 / yr | $9M | |
| 5 | Union County | Medium | 0.18 / yr | $4M | |
| 6 | Klamath County | Medium | 0.12 / yr | $2M | |
| 7 | Deschutes County | Medium | 0.15 / yr | $2M | |
| 8 | Marion County | Low | 0.24 / yr | $932K | |
| 9 | Lane County | Low | 0.13 / yr | $735K | |
| 10 | Wasco County | Low | 0.39 / yr | $799K | |
| 11 | Wallowa County | Low | 0.28 / yr | $421K | |
| 12 | Linn County | Low | 0.32 / yr | $485K | |
| 13 | Hood River County | Low | 0.43 / yr | $704K | |
| 14 | Morrow County | Low | 0.31 / yr | $494K | |
| 15 | Jefferson County | Low | 0.28 / yr | $479K | |
| 16 | Columbia County | Low | 0.14 / yr | $507K | |
| 17 | Crook County | Low | 0.13 / yr | $276K | |
| 18 | Yamhill County | Very Low | 0.08 / yr | $291K | |
| 19 | Clatsop County | Very Low | 0.13 / yr | $192K | |
| 20 | Baker County | Very Low | 0.05 / yr | $140K | |
| 21 | Benton County | Very Low | 0.05 / yr | $193K | |
| 22 | Polk County | Very Low | 0.05 / yr | $187K | |
| 23 | Grant County | Very Low | 0.12 / yr | $105K | |
| 24 | Lincoln County | Very Low | 0.05 / yr | $97K | |
| 25 | Tillamook County | Very Low | 0.13 / yr | $103K | |
| 26 | Lake County | Very Low | 0.16 / yr | $89K | |
| 27 | Malheur County | Very Low | 0.05 / yr | $76K | |
| 28 | Gilliam County | Very Low | 0.42 / yr | $65K | |
| 29 | Sherman County | Very Low | 0.46 / yr | $76K | |
| 30 | Jackson County | Very Low | 0.02 / yr | $60K | |
| 31 | Wheeler County | Very Low | 0.18 / yr | $22K | |
| 32 | Douglas County | Very Low | 0.01 / yr | $908 | |
| 33 | Josephine County | Very Low | 0.00 / yr | $628 | |
| 34 | Harney County | Very Low | 0.00 / yr | $0 |
34 Oregon counties with measurable cold wave risk. See the national cold wave ranking or all Oregon counties by overall risk.
Frequently Asked Questions
Which Oregon county has the highest cold wave risk?
Clackamas County has the highest FEMA cold wave risk score in Oregon at 95.2 (High), with $15M in expected annual losses and about 0.38 events per year.
How many Oregon counties face significant cold wave risk?
34 Oregon counties record measurable cold wave risk in FEMA's National Risk Index; 4 of them are rated High or Very High.